Preparation method of wear-resistant warp-knitted jacquard mesh cloth for vamps

Abstract

The invention discloses a preparation method of wear-resistant warp-knitted jacquard mesh cloth for vamps, and particularly relates to the technical field of mesh cloth, in the preparation process, air permeability detection equipment needs to be used, the air permeability detection equipment comprises a base, and two driving assemblies used for driving the jacquard mesh cloth to continuously move are arranged at the top end of the base; a blowing assembly is arranged between the two driving assemblies, a plurality of detection channels arranged side by side are arranged at the top of the blowing assembly, and the blowing assembly comprises a wind power box fixedly arranged at the top end of the base. The baffle moves up and down through wind power, the reference rope moves in the range of the sliding groove, when the air permeability is unqualified and uneven, the reference rope is stressed, and the stress value is reflected on the display screen, so that whether the phenomena of unqualified air permeability and uneven air permeability occur on jacquard mesh cloth or not can be judged, and the quality of the jacquard mesh cloth is guaranteed. And the comprehensiveness of air permeability detection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mesh fabrics, and particularly relates to a preparation method of a wear-resistant warp-knitted jacquard mesh fabric for shoe uppers. Background Art

[0002] A mesh shoe is a type of shoe with a mesh structure design, and a large area of mesh material, that is, a mesh fabric, is covered on the shoe upper. This design makes the shoes more breathable and suitable for wearing in summer or during sports.

[0003] The mesh fabric of mesh shoes is usually made of synthetic fiber materials such as nylon and polyester, which makes the mesh fabric have sufficient tensile and wear-resistant capabilities while having breathability.

[0004] The production and processing of mesh fabrics consist of multiple processes. Since the biggest advantage of shoe mesh fabrics is breathability, it is very necessary to detect the breathability effect of mesh fabrics in the production and processing process. The existing detection methods mainly use a blower to blow air from one side of the mesh fabric to the other side, and a structure for sensing the wind force is set on the other side to judge the breathability effect of the mesh fabric, such as the fabric breathability detection device with the publication number CN112444476A.

[0005] This method can intuitively detect the quality of breathability, but it cannot intuitively compare whether the breathability of each part of the mesh fabric is consistent. Once the breathability effect of each part of the mesh fabric is uneven, it will also affect the quality of the mesh fabric. Therefore, the breathability detection in the existing technology is not comprehensive enough. Summary of the Invention

[0006] The purpose of the present invention is to provide a preparation method of a wear-resistant warp-knitted jacquard mesh fabric for shoe uppers. By the stress condition of the reference rope, it can be judged whether there are phenomena of unqualified breathability and uneven breathability on the jacquard mesh fabric, improving the comprehensiveness of breathability detection.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A preparation method of a wear-resistant warp-knitted jacquard mesh fabric for shoe uppers, and the specific steps are as follows:

[0008] Step 1: Mix nylon material and polyester material and heat them to melt, and then use a spinning machine to make mixed fiber filaments. The nylon material and the polyester material are mixed in a ratio of 3:2, heated to 260°C, stirred and mixed evenly after melting, and then processed into mixed fiber filaments by a spinning machine;

[0009] Step 2: Make the processed mixed fiber filaments into yarns through a twisting machine, and each yarn contains 3 - 5 mixed fiber filaments;

[0010] Step 3: Process the obtained yarns into jacquard mesh fabrics through a warp knitting machine;

[0011] Step 4: The processed jacquard mesh fabric is detected by an air permeability detection device. After passing the detection, it is wound up to complete the whole preparation process. The unqualified products can be recycled, melted and re-produced to avoid waste. The length of each roll of the wound jacquard mesh fabric is 20 - 50m, which is more convenient for storage and transportation after winding.

[0012] Further, the air permeability detection device for detecting the jacquard mesh fabric in Step 4 includes a base. At the top of the base, there are two driving components for driving the continuous movement of the jacquard mesh fabric. Between the two driving components, there is a blowing component. At the top of the blowing component, there are a plurality of detection channels arranged side by side.

[0013] Further, the blowing component includes a wind power box fixedly arranged at the top of the base. The top of the wind power box is provided with a cover plate through bolts. At the top of the cover plate, there are a plurality of air blowing pipes communicated with the inside of the wind power box. The air blowing pipes correspond to the detection channels one by one and are arranged directly below the corresponding detection channels.

[0014] On both the front and rear sides of the wind power box, two fans are fixedly arranged. On the inner wall of the wind power box, a plurality of heating rods are fixedly arranged to appropriately heat the air through the heating rods.

[0015] Further, a detachable fixing bracket is arranged on the wind power box. On one side of the fixing bracket, a controller and a display screen are fixedly arranged. The display screen, the heating rods and the fans are all arranged at the output end of the controller. The detection channels are all detachably arranged on the fixing bracket.

[0016] Further, a balloon is arranged inside the detection channel. On both the front and rear sides of the detection channel, two exhaust ports are opened. The positions of the exhaust ports are higher than the balloon. On the inner wall of the detection channel, a temperature sensor electrically connected to the controller is fixedly arranged. The temperature sensor is arranged at the input end of the controller.

[0017] At the top of the detection channel, two sleeves are fixedly arranged. At the top of the balloon, two guide rods are fixedly arranged. The top ends of the two guide rods respectively extend to the top of the detection channel through the two sleeves to ensure the vertical up and down movement of the balloon.

[0018] Further, a baffle is arranged on the front side of each detection channel. A sliding groove penetrating the baffle is opened on the baffle. At the top of the baffle, a connecting frame is fixedly arranged. One end of the connecting frame extends to the top of the corresponding detection channel and is fixedly connected to the top end of the guide rod.

[0019] Further, two end plates are provided on the front side of the fixed bracket through bolts. A buffer spring and a tension sensor electrically connected to the controller are respectively fixed on the two end plates. The tension sensor is arranged at the input end of the controller. A reference rope is arranged between the buffer spring and the tension sensor. Both ends of the reference rope are fixedly connected to the tension sensor and the buffer spring respectively. The reference rope passes through all the baffles through the sliding groove.

[0020] Further, the driving assembly includes a mounting frame fixedly arranged at the top end of the base. Two pressure roller shafts are rotatably connected to the inner wall of the mounting frame. An extrusion roller is fixedly arranged at the outer end of the pressure roller shaft. The jacquard fabric is clamped between the two extrusion rollers;

[0021] One end of the pressure roller shaft penetrates through the mounting frame and is fixedly provided with a gear. The gears on the two pressure roller shafts are meshed with each other. A motor electrically connected to the controller is further arranged on the front driving assembly. The motor is fixedly arranged on the inner wall of the mounting frame of this driving assembly. The motor is used to drive the extrusion roller of this driving assembly to rotate. The output shaft of the motor is connected to one of the pressure roller shafts of this driving assembly through a belt structure.

[0022] In the above technical solution, the technical effects and advantages provided by the present invention are as follows:

[0023] 1. The baffle moves up and down by the wind force, so the reference rope moves within the range of the sliding groove. When the air permeability is unqualified or uneven, the reference rope will be stressed and the stress value will be reflected on the display screen, so as to judge whether there are unqualified air permeability and uneven air permeability phenomena on the jacquard fabric, improving the comprehensiveness of air permeability detection;

[0024] 2. The air permeability of the jacquard fabric is reflected by blowing the balloon with wind force. Each balloon is separated by the detection channel. Therefore, the air flow of each part of the jacquard fabric has a separate movement path during detection and will not interfere with each other, improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0026] Figure 1 It is the front view structure diagram of the air permeability detection device;

[0027] Figure 2 It is the rear view structure diagram of the air permeability detection device;

[0028] Figure 3Structural diagram of the blowing component and detection channel of the air permeability detection device;

[0029] Figure 4 For the air permeability detection device Figure 3 Enlarged view of part A in

[0030] Figure 5 For the air permeability detection device Figure 3 Enlarged view of part B in

[0031] Figure 6 Side view cross-sectional view of the detection channel of the air permeability detection device;

[0032] Figure 7 Cross-sectional view of the air box of the air permeability detection device;

[0033] Figure 8 Structural diagram of the drive component of the air permeability detection device;

[0034] Figure 9 System diagram of the air permeability detection device.

[0035] Explanation of reference numerals:

[0036] 1. Jacquard mesh fabric; 2. Base; 3. Drive component; 301. Mounting frame; 302. Press roller shaft; 303. Extrusion roller; 304. Gear; 4. Fixed bracket; 5. Blowing component; 501. Air box; 502. Fan; 503. Cover plate; 504. Blowing pipe; 505. Heating rod; 6. Detection channel; 601. Balloon; 602. Guide rod; 603. Sleeve; 604. Connecting frame; 605. Baffle; 606. Sliding groove; 7. Exhaust port; 8. Controller; 9. Display screen; 10. Motor; 11. Temperature sensor; 12. End plate; 13. Tensile sensor; 14. Reference rope; 15. Buffer spring. Detailed implementation mode

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0038] The present invention provides a preparation method of a wear-resistant warp-knitted jacquard mesh fabric for shoe uppers as shown in Figures 1-9 The specific steps are as follows:

[0039] Step 1: Mix nylon material and polyester material and heat them to melt, and then use a spinning machine to make mixed fiber filaments. The nylon material and polyester material are mixed in a ratio of 3:2, heated to 260 °C, stirred and mixed evenly after melting, and then processed into mixed fiber filaments by a spinning machine;

[0040] Step 2: Twist the processed mixed fiber filaments into yarns through a twisting machine, with 3 - 5 mixed fiber filaments in each yarn;

[0041] Step 3: Process the obtained yarns into jacquard mesh fabric 1 through a warp knitting machine;

[0042] Step 4: The processed jacquard mesh fabric 1 is detected by an air permeability detection device. After passing the detection, it is wound up to complete the whole preparation process. The unqualified products can be recycled, melted, and re - produced to avoid waste. Each roll of the wound - up jacquard mesh fabric 1 has a length of 20 - 50 m, which is more convenient for storage and transportation.

[0043] In Step 4, the air permeability detection device for detecting the jacquard mesh fabric 1 includes a base 2, as Figure 1 、 2 shown in Figures 3, 7, etc. Two driving components 3 for driving the continuous movement of the jacquard mesh fabric 1 are provided at the top of the base 2. A blowing component 5 is provided between the two driving components 3. A plurality of detection channels 6 arranged side - by - side are provided at the top of the blowing component 5. The distance from the bottom opening of the detection channel 6 to the jacquard mesh fabric 1 is less than 5 cm.

[0044] The blowing component 5 includes a wind box 501 fixedly arranged at the top of the base 2. A cover plate 503 is provided at the top of the wind box 501 through bolts. A plurality of air blowing pipes 504 communicating with the inside of the wind box 501 are fixedly arranged at the top of the cover plate 503. The air blowing pipes 504 correspond to the detection channels 6 one - by - one and are arranged directly below the corresponding detection channels 6;

[0045] Two fans 502 are fixedly arranged on both the front and rear sides of the wind box 501. A plurality of heating rods 505 are fixedly arranged on the inner wall of the wind box 501 to appropriately heat the air through the heating rods 505.

[0046] Clamp the jacquard mesh fabric 1 on the driving component 3, and drive the continuous movement of the jacquard mesh fabric 1 through the driving component 3. During the movement, the jacquard mesh fabric 1 passes through the blowing component 5 for detection. During the detection, the blowing component 5 is located below the jacquard mesh fabric 1, and the detection channels 6 are located above the jacquard mesh fabric 1. Each of the horizontally arranged detection channels 6 is used to detect different parts of the jacquard mesh fabric 1. During the detection, the fans 502 drive the air into the wind box 501. The air entering the inside of the wind box 501 is appropriately heated by the heating rods 505 and then discharged upward through the air blowing pipes 504. Each air blowing pipe 504 blows the air flow through the jacquard mesh fabric 1 into each detection channel 6. The distance from the top of the air blowing pipe 504 to the jacquard mesh fabric 1 is less than 5 cm.

[0047] During detection, each part needs to be isolated, as Figure 3 、 6, as shown in Figures 9, a detachable fixing bracket 4 is provided on the wind box 501. One side of the fixing bracket 4 is fixedly provided with a controller 8 and a display screen 9. The display screen 9, the heating rod 505 and the fan 502 are all arranged at the output end of the controller 8. The detection channel 6 is detachably arranged on the fixing bracket 4.

[0048] A balloon 601 is arranged inside the detection channel 6. Two exhaust ports 7 are respectively opened on the front and rear sides of the detection channel 6. The positions of the exhaust ports 7 are higher than the balloon 601. A temperature sensor 11 electrically connected to the controller 8 is fixedly arranged on the inner wall of the detection channel 6. The temperature sensor 11 is arranged at the input end of the controller 8;

[0049] Two sleeves 603 are fixedly arranged at the top end of the detection channel 6. Two guide rods 602 are fixedly arranged at the top end of the balloon 601. The top ends of the two guide rods 602 respectively extend to the top of the detection channel 6 through the two sleeves 603, so as to ensure the vertical up and down movement of the balloon 601.

[0050] The air blown upward into the detection channel 6 is subjected to temperature detection by the temperature sensor 11, and the detected result is displayed through the display screen 9. A high temperature indicates that heat is easily transmitted through the jacquard fabric 1, otherwise it indicates that heat is not easily transmitted through the jacquard fabric 1. Thus, the heat dissipation effect of the jacquard fabric 1 is judged. After the upward air flow enters the detection channel 6, it blows the balloon 601 upward and finally discharges outward through the exhaust port 7. The higher the balloon 601 is blown, the stronger the air flow force is, and the better the air permeability of the jacquard fabric 1 is. Otherwise, it indicates that the air permeability of the jacquard fabric 1 is poor. The height change of the balloon 601 will drive the up and down vertical movement of the guide rod 602. Each balloon 601 is separated by the detection channel 6. Therefore, the air flow of each part of the jacquard fabric 1 has a separate movement path during detection and will not interfere with each other, improving the detection accuracy.

[0051] To judge whether each part of the jacquard fabric 1 is uniform, as Figures 3-6 shown, a baffle 605 is provided on the front side of each detection channel 6. A sliding groove 606 penetrating the baffle 605 is opened on the baffle 605. A connecting frame 604 is fixedly arranged at the top end of the baffle 605. One end of the connecting frame 604 extends to the top of the corresponding detection channel 6 and is fixedly connected to the top end of the guide rod 602.

[0052] Two end plates 12 are provided on the front side of the fixing bracket 4 through bolts. A buffer spring 15 and a tension sensor 13 electrically connected to the controller 8 are respectively fixedly arranged on the two end plates 12. The tension sensor 13 is arranged at the input end of the controller 8. A reference rope 14 is arranged between the buffer spring 15 and the tension sensor 13. The two ends of the reference rope 14 are respectively fixedly connected to the tension sensor 13 and the buffer spring 15. The reference rope 14 penetrates through all the baffles 605 through the sliding groove 606.

[0053] During detection, the height change of the balloon 601 will drive the baffle 605 to rise and fall through the guide rod 602 and the connecting frame 604. If the air permeability of the jacquard fabric 1 is standard, the reference rope 14 should be in the middle part of the sliding groove 606. If the air permeability is higher than the standard, the baffle 605 will move upward, and the position of the reference rope 14 in the baffle 605 will be lower. On the contrary, it will be higher. Although the more standard and uniform the air permeability of the jacquard fabric 1 is, the better, but it is not required that the air permeability of each part is exactly the same, and a certain range of deviation is allowed;

[0054] Therefore, no matter how the height of the baffle 605 changes, as long as the reference rope 14 is still within the range of the sliding groove 606 and does not contact the inner wall of the sliding groove 606, its air permeability is considered qualified. Therefore, as long as the height of all baffles 605 during the detection process can make the reference rope 14 located within the range of the sliding groove 606, it means that the air permeability of each part of the jacquard fabric 1 is qualified and uniform. In this state, the reference rope 14 is in a natural straight state without radial force;

[0055] Once the air permeability of a certain part of the jacquard fabric 1 is unqualified, the corresponding baffle 605 will move and cause the reference rope 14 to exceed the range of the sliding groove 606. At this time, the baffle 605 will generate a radial force on the reference rope 14, causing the reference rope 14 to bend and the buffer spring 15 to be further stretched. The force on the tension sensor 13 will increase, and the force value is reflected on the display screen 9, so that it can be judged that there are phenomena of unqualified air permeability and uneven air permeability on the jacquard fabric 1, improving the comprehensiveness of air permeability detection;

[0056] And sponge pads are fixedly arranged at the top and bottom of the inner wall of the sliding groove 606, and different color liquid pigments are adsorbed in the upper and lower sponge pads. When the above-mentioned unqualified air permeability phenomenon occurs, one of the sponge pads in the corresponding position of the sliding groove 606 will contact the reference rope 14 and cause the surface of the reference rope 14 to be stained with the corresponding color. Through the type and position of the color, the specific part of the problematic jacquard fabric 1 can be judged, and it can be known whether the air permeability is too high or too low.

[0057] Driven by the driving component 3, the jacquard fabric 1 moves continuously for detection, as Figure 1 、 8 shown in FIG. 9, the driving component 3 includes a mounting frame 301 fixedly arranged at the top end of the base 2. Two pressure roller shafts 302 are rotatably connected to the inner wall of the mounting frame 301, and an extrusion roller 303 is fixedly arranged at the outer end of the pressure roller shaft 302. The jacquard fabric 1 is sandwiched between the two extrusion rollers 303;

[0058] One end of the pressure roller shaft 302 penetrates through the mounting frame 301 and is fixedly provided with a gear 304. The gears 304 on the two pressure roller shafts 302 are meshed with each other. A motor 10 electrically connected to the controller 8 is further provided on the front drive assembly 3. The motor 10 is fixedly arranged on the inner wall of the mounting frame 301 of the drive assembly 3. The motor 10 is used to drive the extrusion roller 303 of the drive assembly 3 to rotate. The output shaft of the motor 10 is connected to one of the pressure roller shafts 302 of the drive assembly 3 through a belt structure.

[0059] The jacquard fabric 1 is successively passed through the two drive assemblies 3. The jacquard fabric 1 is clamped between the two extrusion rollers 303 on the drive assembly 3. The front extrusion roller 303 rotates under the drive of the motor 10. Due to the meshing action of the gears 304, the two extrusion rollers 303 on each drive assembly 3 will rotate at the same speed and in opposite directions, so as to pull the clamped jacquard fabric 1, making the jacquard fabric 1 move continuously from back to front and be continuously detected, improving the detection efficiency. The pressure roller shaft 302 on the rear drive assembly 3 can be connected to the mounting frame 301 through a damping rotating shaft. Therefore, the rotation of the rear pressure roller shaft 302 has appropriate damping. The jacquard fabric 1 is thus tightened and flattened by an appropriate tension during the detection process, avoiding wrinkles in the jacquard fabric 1 during the detection process and interfering with the detection results.

[0060] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for preparing a wear-resistant warp knitted jacquard mesh for a shoe upper, characterized in that: The specific steps are as follows: Step 1: Mix the nylon material and the polyester material, heat and melt them, and then use a spinning machine to make mixed fiber yarn; Step 2: The processed mixed fiber yarn is made into yarn through a twisting machine; Step 3: Processing the obtained yarn into a jacquard mesh fabric (1) through a warp knitting machine; Step 4: The processed jacquard mesh fabric (1) is tested by air permeability testing equipment, and is rolled up after passing the test, thus completing the entire preparation process.

2. The method for preparing a wear-resistant warp knitted jacquard mesh for a shoe upper according to claim 1, characterized in that: The air permeability detection device used to detect the jacquard mesh (1) in step 4 comprises a base (2), the top of the base (2) is provided with two driving components (3) for driving the jacquard mesh (1) to continuously move, a blowing component (5) is provided between the two driving components (3), and the top of the blowing component (5) is provided with a plurality of detection channels (6) arranged side by side.

3. The method for preparing a wear-resistant warp knitted jacquard mesh for a shoe upper according to claim 2, characterized in that: The blowing assembly (5) comprises a wind box (501) fixedly arranged on the top of the base (2); a cover plate (503) is arranged on the top of the wind box (501); a plurality of blowing pipes (504) communicating with the interior of the wind box (501) are fixedly arranged on the top of the cover plate (503); the blowing pipes (504) correspond to the detection channels (6) one by one and are arranged directly below the corresponding detection channels (6); Two fans (502) are fixedly provided on both the front and rear sides of the wind box (501), and a plurality of heating rods (505) are fixedly provided on the inner wall of the wind box (501).

4. The method for preparing the wear-resistant warp knitted jacquard mesh fabric for shoe uppers according to claim 3, characterized in that: The wind box (501) is provided with a detachable fixed bracket (4), a controller (8) and a display screen (9) are fixedly provided on one side of the fixed bracket (4), and the detection channel (6) is detachably arranged on the fixed bracket (4).

5. The method for preparing the wear-resistant warp knitted jacquard mesh fabric for shoe uppers according to claim 4, characterized in that: A balloon (601) is provided inside the detection channel (6), two exhaust ports (7) are provided on both the front and rear sides of the detection channel (6), and a temperature sensor (11) electrically connected to the controller (8) is fixedly provided on the inner wall of the detection channel (6); Two sleeves (603) are fixedly provided at the top of the detection channel (6), and two guide rods (602) are fixedly provided at the top of the balloon (601). The tops of the two guide rods (602) extend to the top of the detection channel (6) through the two sleeves (603) respectively.

6. The method for preparing the wear-resistant warp knitted jacquard mesh fabric for shoe uppers according to claim 5, characterized in that: Each detection channel (6) is provided with a baffle (605) on the front side, and a sliding groove (606) penetrating the baffle (605) is provided on the baffle (605). A connecting frame (604) is fixedly provided on the top of the baffle (605), and one end of the connecting frame (604) extends to the top of the corresponding detection channel (6) and is fixedly connected to the top of the guide rod (602).

7. The method for preparing the wear-resistant warp knitted jacquard mesh fabric for shoe uppers according to claim 6, characterized in that: The fixed bracket (4) is provided with two end plates (12) on the front side, and a buffer spring (15) and a tension sensor (13) electrically connected to the controller (8) are fixed on the two end plates (12) respectively, and a reference rope (14) is provided between the buffer spring (15) and the tension sensor (13), and the reference rope (14) passes through all the baffles (605) through a sliding groove (606).

8. The method for preparing the wear-resistant warp knitted jacquard mesh fabric for shoe uppers according to claim 4, characterized in that: The driving assembly (3) comprises a mounting frame (301) fixedly mounted on the top of the base (2); two pressing roller shafts (302) are rotatably connected to the inner wall of the mounting frame (301); a squeezing roller (303) is fixedly mounted on the outer end of the squeezing roller shaft (302); and the jacquard mesh cloth (1) is sandwiched between the two squeezing rollers (303); One end of the pressure roller shaft (302) passes through the mounting frame (301) and is fixedly provided with a gear (304); the gears (304) on the two pressure roller shafts (302) are meshed with each other; the front driving component (3) is also provided with a motor (10) electrically connected to the controller (8); the motor (10) is fixedly provided on the inner wall of the mounting frame (301) of the driving component (3); the motor (10) is used to drive the squeezing roller (303) of the driving component (3) to rotate.

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