Warp knitting machine for warp knitting fabric with high peel strength

Abstract

The utility model discloses a warp knitting machine for warp knitting fabric with high peel strength, which relates to the technical field of knitting machines, and is characterized in that a shaping device is arranged on one side of a warp knitting machine body, which is used for outputting fabric; the shaping device comprises a plurality of sanding rollers, an extrusion roller, a coating roller, a coating pool, a material conveying roller and a shaping chamber which are sequentially arranged in the fabric conveying direction, a release film is conveyed on the material conveying roller, the extrusion roller drives the release film to be attached to the top face of the fabric, the coating roller applies a coating while applying pressure to the bottom face of the fabric, and the shaping chamber is used for shaping the fabric. And the release film is conveyed along with the fabric, is rolled in the shaping chamber and then is subjected to heat shaping treatment. According to the utility model, fluff can be extruded when pressure is applied to the two sides of the fabric through the extrusion roller and the coating roller, so that the fluff is extruded to be filled in concave parts on the surface of the fabric, the flatness of the surface of the fabric is kept, and a coating can be in close contact with the fabric in the process of drying and shaping to form a coating; therefore, the peel strength between the fabric and the coating is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of knitting machine, more specifically, it relates to a warp knitting machine of high peeling strength warp knitted fabric. BACKGROUND

[0002] Peeling strength refers to the firmness of the combination of the fabric and the coating or other materials. In the textile industry, the peeling strength of the fabric is one of the important indicators for measuring product quality and durability. In particular, for high-performance fabrics such as sportswear and professional protective clothing, high peeling strength means that the combination between the fabric and the coating or other materials is more firm, and it is not easy to fall off, thereby improving the durability of the overall product.

[0003] The warp knitting machine produces a knitted fabric by looping and knitting the parallel arranged yarns in the warp direction. Due to the existence of tuck loops, the surface of the fabric is uneven, and there is a gap between the coating and the fabric, which increases the possibility of the coating separating from the fabric, thereby affecting the peeling strength of the finished fabric.

[0004] Therefore, a new solution is needed to solve this problem. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a warp knitting machine for high peeling strength warp knitted fabric.

[0006] The above technical purpose of the utility model is achieved by the following technical scheme: a warp knitting machine for high peeling strength warp knitted fabric, comprising a warp knitting machine body, a setting device is arranged on one side of the warp knitting machine body where the fabric is output, the setting device comprises a plurality of sanding rollers, extrusion rollers, coating rollers, coating pools, material conveying rollers and setting chambers arranged in sequence along the fabric conveying direction, a release film is conveyed on the material conveying roller, the extrusion roller drives the release film to adhere to the top surface of the fabric, the coating roller applies pressure to the bottom surface of the fabric while coating the coating, and the release film is heat set after being conveyed with the fabric and wound in the setting chamber.

[0007] The utility model is further provided as follows: the extrusion roller is rotatably connected above the fabric, the coating roller is rotatably connected directly below the extrusion roller, and the distance between the extrusion roller and the coating roller is less than the sum of the thickness of the fabric and the thickness of the release film.

[0008] The utility model is further provided as follows: the surface of the coating roller is made of nylon material, and the liquid level in the coating pool is at the same horizontal plane as the rotating axis of the coating roller.

[0009] The utility model is further provided as follows: a scraper is fixedly connected to the top of the coating pool near one side of the setting chamber, and a liquid conveying pipe is connected to the bottom of the coating pool.

[0010] The utility model further sets up: the rotating speed of the sanding roller is greater than the conveying speed of the fabric, the feed roller is obliquely connected above the side of the extrusion roller close to the shaping chamber, a plurality of sanding rollers are obliquely connected above the side of the extrusion roller close to the warp knitting machine body.

[0011] The utility model further sets up: the rotating connection has the guide roller and the winding roller in the shaping chamber, the bottom of the guide roller is with the bottom of the extrusion roller on the same horizontal plane, the winding roller is located the oblique upper side of the guide roller away from the warp knitting machine body.

[0012] The utility model further sets up: the release film, the fabric and the coating are set from top to bottom and are wound on the winding roller simultaneously, the inner wall of the shaping chamber is equipped with heating strip, the top surface of the shaping chamber is connected with the exhaust pipe.

[0013] In conclusion, the utility model has the following beneficial effects: a layer of fluff can be formed after the sanding roller grinds on one side of the fabric, the fluff can be extruded when the extrusion roller and the coating roller apply pressure to the two sides of the fabric, the fluff is extruded and filled in the recess on the surface of the fabric, so that the flatness of the fabric surface is maintained, the nylon material has good moisture absorption and certain hardness, so that the coating roller can absorb the coating in the coating pool and coat on the surface of the fabric while ensuring the extrusion effect, the fabric can be in full contact with the coating, the fabric can maintain a certain tension during conveying, the two sides of the wound fabric can produce a certain pressure, the coating can be in close contact with the fabric during the process of drying and shaping into a coating, so that the peeling strength between the fabric and the coating is improved, and the release film can prevent the two sides of the wound fabric from sticking together. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of the utility model;

[0015] Figure 2 It is the sectional view of the utility model.

[0016] In the drawing: 1, warp knitting machine body;2, shaping device;3, sanding roller;4, extrusion roller;5, coating roller;6, coating pool;7, feed roller;8, shaping chamber;9, release film;10, scraper;11, liquid feeding pipe;12, guide roller;13, winding roller;14, heating strip;15, exhaust pipe. DETAILED DESCRIPTION

[0017] The utility model will be described in detail below in combination with the drawings and examples.

[0018] Example: a warp knitting machine of high peeling strength warp knitting fabric, such as Figure 1 And Figure 2As shown, including a warp knitting machine body 1, warp knitting machine body 1 located on the side of its output fabric is provided with a setting device 2, setting device 2 includes two sanding rollers 3, an extrusion roller 4, a coating roller 5, a coating pool 6, a material roller 7 and a setting chamber 8 arranged in turn along the direction of fabric conveying, two sanding rollers 3 are the same diameter and located in the same horizontal plane, the top of the two sanding rollers 3 is in contact with the bottom surface of the fabric, the sanding roller 3 rotates in the counterclockwise direction, the rotation speed of the sanding roller 3 is greater than the conveying speed of the fabric, so as to perform sanding operation on the fabric, the sanding roller 3 is located obliquely above the side of the extrusion roller 4 close to the warp knitting machine body 1, the extrusion roller 4 rotates in the clockwise direction, so that the fabric conveyed between the sanding roller 3 and the extrusion roller 4 generates a certain tension, so that a layer of fluff can be formed on the bottom surface of the fabric through the two sanding rollers 3.

[0019] As shown in Figure 1 and Figure 2 , the extrusion roller 4 is located above the fabric, the coating roller 5 is rotatably connected below the extrusion roller 4, the fabric is conveyed between the extrusion roller 4 and the coating roller 5, the material roller 7 is provided with a roll of release film 9, the material roller 7 is rotatably connected obliquely above the side of the extrusion roller 4 close to the setting chamber 8, the material roller 7 rotates in the clockwise direction, the release film 9 is conveyed between the extrusion roller 4 and the fabric after the conveying direction of the release film 9 is changed by the extrusion roller 4, while ensuring that the release film 9 generates a certain tension during conveying, the distance between the extrusion roller 4 and the coating roller 5 is less than the sum of the thickness of the fabric and the thickness of the release film 9, the coating roller 5 rotates in the counterclockwise direction, so that the extrusion roller 4 and the coating roller 5 can exert pressure on the fluff on the fabric and the release film 9, so that the fluff is extruded and filled into the recesses on the surface of the fabric, thereby maintaining the flatness of the fabric surface, while the release film 9 can be extruded and attached to the top surface of the fabric, the release film 9 is made of PET material, and the adhesion of its surface is low, so that the release film 9 and the fabric can be easily separated when a pulling force in the direction away from the fabric is applied to the release film 9.

[0020] As shown in Figure 1 and Figure 2As shown, the top end of the coating roller 5 abuts against the bottom surface of the fabric, the coating roller 5 is located in the coating pool 6, the liquid level in the coating pool 6 is at the same level as the rotating axis of the coating roller 5, and the surface of the coating roller 5 is made of nylon material. Since the nylon molecules contain hydrophilic amide groups, these groups can form hydrogen bonds with water molecules, thereby absorbing water. At the same time, the nylon material has a certain hardness, which ensures the extrusion effect of the coating roller 5 on the pile, so that the coating roller 5 can absorb the coating in the coating pool 6 and coat it on the bottom surface of the fabric while extruding the pile, so that the coating can fully contact the fabric, reducing the gap between the coating and the fabric. The bottom of the coating pool 6 is connected to a liquid delivery pipe 11, which can continuously supply coating to the coating pool 6, thereby maintaining the liquid level in the coating pool 6. A scraper 10 is fixedly connected to the top of the coating pool 6 near the shaping chamber 8. The top end of the scraper 10 is inclined downward along the direction close to the warp knitting machine body 1. The excess coating can be scraped off by the scraper 10, thereby ensuring the uniformity of the coating thickness.

[0021] As shown in Figure 1 and Figure 2 , a guide roller 12 and a winding roller 13 are rotatably connected in the shaping chamber 8. The guide roller 12 rotates in the clockwise direction, and the winding roller 13 rotates in the counterclockwise direction. The bottom end of the guide roller 12 is at the same level as the bottom end of the extrusion roller 4, and the winding roller 13 is located obliquely above the side of the guide roller 12 away from the warp knitting machine body 1, so that the fabric and the release film 9 fed into the shaping chamber 8 can maintain a certain tension, thereby driving the release film 9, the fabric and the coating to be arranged from top to bottom and simultaneously wound on the winding roller 13. At the same time, the tension causes the sides of the wound fabric to produce a certain pressure. A heating strip 14 is provided on the inner wall of both sides of the shaping chamber 8. The heating strip 14 is heated by electricity, thereby increasing the temperature in the shaping chamber 8, so that the coating can be in close contact with the fabric during the drying and shaping process, thereby improving the peel strength between the fabric and the coating. At the same time, the release film 9 can prevent the sides of the wound fabric from sticking together. The top surface of the shaping chamber 8 is connected to an exhaust pipe 15. The end of the exhaust pipe 15 away from the shaping chamber 8 is connected to a waste gas purification device, thereby exhausting the high-temperature water vapor generated in the shaping chamber 8.

[0022] Working principle: a layer of fluff is formed by the sanding roller 3 at a faster speed when in contact with the bottom surface of the fabric, the release film 9 and the fabric are pressed by the extrusion roller 4 and the coating roller 5, so that the fluff is filled in the recesses on the surface of the fabric, thereby maintaining the flatness of the fabric surface, at the same time, the release film 9 is extruded and attached to the top surface of the fabric, the coating roller 5 can absorb the paint in the paint pool 6 and coat on the surface of the fabric, the fabric and the release film 9 are rolled on the winding roller 13 at the same time, and the tension generated during the rolling process can produce a certain pressure on both sides of the rolled fabric, so that the paint can be in close contact with the fabric during the drying and setting process to form a coating, and the release film 9 avoids the adhesion of the rolled fabric on both sides, and the release film 9 and the fabric can be easily separated by applying a pulling force in the direction away from the fabric.

[0023] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and decorations without departing from the principles of the present application shall be considered as the protection scope of the present application.

Claims

1. A warp knitting machine for high peel strength warp-knitted fabrics, comprising a warp knitting machine body (1), characterized in that: The warp knitting machine body (1) is provided with a setting device (2) on one side of its output fabric. The setting device (2) includes several abrasive rollers (3), extrusion rollers (4), coating rollers (5), coating tanks (6), feed rollers (7) and setting chambers (8) arranged sequentially along the fabric conveying direction. Release film (9) is conveyed on the feed rollers (7). The extrusion rollers (4) drive the release film (9) to adhere to the top surface of the fabric. The coating rollers (5) apply coating while applying pressure to the bottom surface of the fabric. The release film (9) is heat-set after being conveyed with the fabric and wound up in the setting chamber (8).

2. The warp knitting machine for high peel strength warp-knitted fabric according to claim 1, characterized in that: The extrusion roller (4) is rotatably connected above the fabric, and the coating roller (5) is rotatably connected directly below the extrusion roller (4). The distance between the extrusion roller (4) and the coating roller (5) is less than the sum of the thickness of the fabric and the thickness of the release film (9).

3. The warp knitting machine for high peel strength warp-knitted fabric according to claim 2, characterized in that: The surface of the coating roller (5) is made of nylon, and the liquid level in the coating tank (6) is at the same horizontal plane as the rotation axis of the coating roller (5).

4. The warp knitting machine for high peel strength warp-knitted fabric according to claim 3, characterized in that: A scraper (10) is fixedly connected to the top of the paint tank (6) near the shaping chamber (8), and an infusion pipe (11) is connected to the bottom of the paint tank (6).

5. The warp knitting machine for high peel strength warp-knitted fabric according to claim 4, characterized in that: The rotational speed of the abrasive roller (3) is greater than the fabric conveying speed. The feed roller (7) is rotatably connected to the upper side of the extrusion roller (4) near the shaping chamber (8). Several abrasive rollers (3) are rotatably connected to the upper side of the extrusion roller (4) near the warp knitting machine body (1).

6. The warp knitting machine for high peel strength warp-knitted fabric according to claim 5, characterized in that: The shaping chamber (8) is rotatably connected to a guide roller (12) and a take-up roller (13). The bottom end of the guide roller (12) is on the same horizontal plane as the bottom end of the extrusion roller (4). The take-up roller (13) is located obliquely above the guide roller (12) on the side away from the warp knitting machine body (1).

7. The warp knitting machine for high peel strength warp-knitted fabric according to claim 6, characterized in that: The release film (9), fabric and coating are arranged from top to bottom and rolled on the take-up roller (13) at the same time. The inner wall of the setting chamber (8) is provided with heating strips (14), and the top surface of the setting chamber (8) is connected to an exhaust pipe (15).

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