A high-strength and high-modulus dipped nylon cord fabric production equipment

Abstract

The present invention relates to a high-strength and high-modulus dipped nylon cord fabric production equipment, comprising an outer shell, wherein the top and bottom of the outer shell are respectively provided with a feed port and a discharge port, the feed port and the discharge port are arranged opposite each other up and down, and a drying mechanism is provided in the outer shell; the drying mechanism comprises a primary drying component, an extrusion component and a secondary drying component arranged in sequence from top to bottom, the primary drying component is used to dry the glue on the cord fabric to a semi-solidified state; the high-strength and high-modulus dipped nylon cord fabric production equipment squeezes the glue on the cord fabric to squeeze out bubbles in the glue, thereby improving the strength and modulus of the cord fabric; in addition, when hot air acts on the cord fabric, the cord fabric is supported by a baffle to prevent the cord fabric from being distorted in the hot air flow direction and causing flanging; in addition, the guide roller and the baffle abut against the cord fabric to limit the left and right directions of the cord fabric, which can further prevent flanging on the front and back sides of the cord fabric.

Description

Technical Field

[0001] The invention relates to high-strength and high-modulus dipped nylon cord fabric production equipment, and belongs to the field of nylon cord fabric production. Background Art

[0002] Cord fabric: A tire skeleton fabric made from strong strands of yarn as the warp and medium- and fine-count single yarns as the weft. The warp threads are closely arranged, while the weft threads are sparsely spaced, resembling a cord, hence the name. Cord fabric serves as the skeleton for tires and other rubber products, allowing it to withstand significant pressure, shock loads, and intense vibration. It is a crucial material that impacts tire performance and lifespan. The warp threads (also known as cords) bear the load, while the weft threads secure the warp threads. The production process for nylon-based dipped cord fabric involves weaving, dipping, drying, heat stretching, heat setting, cooling, and winding.

[0003] Patent application number CN201810012804.1 discloses a nylon cord fabric production line, comprising a weaving assembly, a dipping assembly, a drying and shaping assembly, a stretching assembly, and a spraying assembly. The weaving assembly weaves nylon twisted yarn into nylon cord fabric. One end of the nylon cord fabric extends into a glue tank box, the bottom of which is a glue tank. Two grooves are symmetrically defined on one side of the box about its central axis. A rotating shaft extends through the exterior of the box. One end of a first fixed column and a second fixed column are respectively sleeved on the rotating shaft. The other ends of the first and second fixed columns extend into the box through the grooves. A telescopic member drives the first and second fixed columns to swing up and down. The drying and shaping assembly includes an oven and a heater, each equipped with a temperature sensor and a heater. The oven also houses the spraying assembly. This invention enables the rapid and high-quality production of nylon cord fabric. However, in the existing technology, bubbles are likely to remain in the glue during drying, and these bubbles will affect the strength and modulus of the product. The modulus refers to the ratio of stress to strain of a material under stress. In addition, the existing technology uses hot air for drying. When the hot air acts on the cord fabric, the cord fabric is likely to be twisted along the flow direction of the hot air, resulting in flanging, which not only affects the transmission of the product, but also easily affects the product quality.

[0004] Therefore, there is a need for a high-strength and high-modulus impregnated nylon cord fabric production equipment to eliminate bubbles, improve product strength and modulus, and avoid product distortion. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the existing technology, a high-strength and high-modulus dipped nylon cord fabric production equipment is provided which eliminates bubbles, improves product strength and modulus, and avoids product distortion.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: a high-strength and high-modulus dipped nylon cord fabric production equipment, comprising a shell, wherein the top and bottom of the shell are respectively provided with a feed port and a discharge port, the feed port and the discharge port are arranged vertically opposite each other, and a drying mechanism is provided in the shell;

[0007] The drying mechanism includes a primary drying component, an extrusion component and a secondary drying component arranged in sequence from top to bottom, wherein the primary drying component is used to dry the glue on the tire cord fabric to a semi-solidified state;

[0008] The extrusion assembly includes two extrusion units arranged symmetrically about the feed port;

[0009] The extrusion unit includes a drive shaft, which is parallel to the front-to-back direction, passes through the front and rear sides of the housing, and is rotatably connected to the housing. A pressure roller is coaxially fixedly mounted on the drive shaft, and two retaining rings are coaxially fixedly sleeved on the pressure roller. The area between the two retaining rings on the two pressure rollers is the extrusion area;

[0010] In the two extrusion units, a gap is provided between the two pressing rollers, and two adjacent retaining rings on the left and right abut against each other;

[0011] The secondary drying assembly includes a plurality of secondary drying units arranged vertically;

[0012] The secondary drying unit includes a circular ring and a blowing component, which are respectively arranged on the left and right sides of the feed port. The circular ring is fixedly connected to the shell, and a baffle is fixedly inserted in the circular ring, and the baffle is perpendicular to the left and right directions.

[0013] Preferably, the housing consists of a front shell and a rear shell that are symmetrically arranged front to back.

[0014] Preferably, the primary drying assembly includes two heating plates that are arranged symmetrically about the feed inlet, with a gap provided between the two heating plates.

[0015] Preferably, one end of the drive shaft is driven by a motor.

[0016] Preferably, the inner diameter of the retaining ring is equal to the outer diameter of the pressure roller.

[0017] Preferably, a locking ring is coaxially fixed on the side of the retaining ring away from the extrusion zone, the inner diameter of the locking ring is equal to the inner diameter of the retaining ring, and the locking ring is locked with the pressure roller by six first locking screws, and the six first locking screws are evenly distributed circumferentially with the pressure roller as the center.

[0018] Preferably, two guide rods arranged front to back are provided on a side of the baffle away from the blowing component, the guide rods pass through the circular ring, and the guide rods are fixed to the circular ring by a second locking screw.

[0019] Preferably, two groups of guide rollers arranged front and back are provided on the side of the baffle close to the blowing component, and the number of guide rollers in each group is two. The two guide rollers in the same group are respectively arranged above and below the circular ring. The guide rollers are rotatably connected to the circular ring, and a gap is provided between the guide rollers and the circular ring along the left and right directions.

[0020] Preferably, in two upper and lower adjacent drying units, the baffle in one drying unit is located on the left side of the feed port, and the baffle in the other drying unit is located on the right side of the feed port.

[0021] Preferably, the blowing component includes a connecting pipe, the connecting pipe is parallel to the front and rear directions, both ends of the connecting pipe are sealed, an air inlet pipe is provided on the side of the connecting pipe away from the baffle, the air inlet pipe extends to the outside of the shell, a hot air blower is provided on the air inlet pipe, the hot air blower is fixedly provided on the shell, a plurality of air outlet pipes are provided on the side of the connecting pipe close to the baffle, the plurality of air outlet pipes are arranged in sequence from front to back, the air outlet pipes are parallel to the left and right directions, a plurality of mounting holes are provided on the circular ring, the plurality of mounting holes correspond one-to-one to the plurality of air inlet pipes, and the air inlet pipes are fixedly inserted into the mounting holes.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] The present invention provides a high-strength and high-modulus impregnated nylon cord fabric production equipment, which squeezes the glue on the cord fabric to squeeze out bubbles in the glue, thereby improving the strength and modulus of the cord fabric. In addition, when hot air acts on the cord fabric, the cord fabric is supported by a baffle to prevent the cord fabric from being distorted in the flow direction of the hot air and causing flanging. In addition, the guide roller and the baffle abut against the cord fabric to limit the left and right directions of the cord fabric, which can further prevent flanging on the front and back sides of the cord fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a high-strength and high-modulus dipped nylon cord fabric production device of the present invention;

[0025] Figure 2 Schematic diagram of the internal structure of the shell;

[0026] Figure 3 It is a structural diagram of the extrusion unit;

[0027] Figure 4 Schematic diagram of the structure of the retaining ring;

[0028] Figure 5It is a structural diagram of the secondary drying unit;

[0029] Figure 6 It is a structural diagram of the loop;

[0030] Figure 7 It is a structural diagram of the blowing component;

[0031] Figure 8 Schematic diagram of the structure of the rear shell.

[0032] Wherein: housing 1, front housing 101, rear housing 102, feed port 2, discharge port 3, drying mechanism 4, primary drying assembly 401, heating plate 401.1, extrusion assembly 402, extrusion unit 402.1, drive shaft 402.11, bearing 402.12, motor 402.13, pressure roller 402.14, retaining ring 402.15, locking ring 402.16, first locking screw 402.17 , secondary drying assembly 403, secondary drying unit 403.1, return ring 403.11, blowing component 403.12, connecting pipe 403.121, air inlet pipe 403.122, hot air blower 403.123, air outlet pipe 403.124, mounting hole 403.125, baffle 403.13, guide roller 403.14, guide rod 403.15, second locking screw 403.16, cord fabric 5. DETAILED DESCRIPTION

[0033] like Figure 1-8 As shown, a high-strength and high-modulus dipped nylon cord fabric production device in this embodiment includes a housing 1, which is composed of two front and rear symmetrically arranged front and rear housings 101 and 102. The top and bottom of the housing 1 are respectively provided with a feed port 2 and a discharge port 3, and the feed port 2 and the discharge port 3 are arranged vertically opposite each other. A drying mechanism 4 is provided in the housing 1;

[0034] The drying mechanism 4 includes a primary drying component 401, an extrusion component 402 and a secondary drying component 403 arranged in sequence from top to bottom;

[0035] The primary drying assembly 401 includes two heating plates 401.1 symmetrically arranged about the feed port 2, with a gap provided between the two heating plates 401.1. The dipped cord fabric 5 sequentially passes through the feed port 2 and the discharge port 3, and passes between the two heating plates 401.1. When the heating plates 401.1 are energized to generate heat, which acts on the cord fabric 5, causing the adhesive on the cord fabric 5 to be semi-solidified.

[0036] The extrusion assembly 402 includes two extrusion units 402.1 arranged symmetrically about the feed port 2;

[0037] The extrusion unit 402.1 includes a drive shaft 402.11, which is parallel to the front-to-back direction and passes through the front and rear sides of the housing 1. The drive shaft 402.11 is connected to the housing 1 through a bearing 402.12. One end of the drive shaft 402.11 is driven by a motor 402.13. A pressure roller 402.14 is coaxially fixedly mounted on the drive shaft 402.11. Two retaining rings 402.15 are coaxially fixedly sleeved on the pressure roller 402.14. The inner diameter of the retaining ring 402.15 is equal to the outer diameter of the pressure roller 402.14. The area between the two retaining rings 402.15 on the two pressure rollers 402.14 is the extrusion area;

[0038] In the two squeezing units 402.1, a gap is provided between the two pressing rollers 402.14, and the two adjacent retaining rings 402.15 on the left and right abut against each other;

[0039] A locking ring 402.16 is coaxially fixedly provided on one side of the retaining ring 402.15 away from the extrusion zone. The inner diameter of the locking ring 402.16 is equal to the inner diameter of the retaining ring 402.15. The locking ring 402.16 is locked to the pressure roller 402.14 by six first locking screws 402.17. The six first locking screws 402.17 are evenly distributed circumferentially around the pressure roller 402.14.

[0040] The cord fabric 5 passes between the two pressure rollers 402.14, and the two pressure rollers 402.14 squeeze the cord fabric 5. At the same time, the motor 402.13 is started to rotate the drive shaft 402.11 on the bearing 402.12. The rotation of the drive shaft 402.11 drives the pressure roller 402.14 to rotate. The sides of the two pressure rollers 402.14 that are close to each other rotate downward, and the linear speed of the pressure roller 402.14 is the same as the speed of movement of the cord fabric 5. Through the squeezing of the two pressure rollers 402.14, the bubbles in the semi-solidified glue on the cord fabric 5 are squeezed out, thereby preventing the bubbles from affecting the strength and modulus of the finished cord fabric 5. In addition, according to the cord fabric 5 The distance in the front and rear directions is adjusted in advance between the two retaining rings 402.15 on the same pressure roller 402.14. When adjusting, loosen the first locking screw 402.17 so that the retaining ring 402.15 can move axially on the pressure roller 402.14. After the adjustment is completed, tighten the first locking screw 402.17. During the movement of the cord fabric 5, the front and rear retaining rings 402.15 respectively abut against the two sides of the cord fabric 5 in the front and rear directions. Because the left and right adjacent retaining rings 402.15 abut against each other, the retaining rings 402.15 can trim the semi-solidified glue on both sides of the cord fabric 5 in the front and rear directions, thereby preventing the glue from affecting the shape of the cord fabric 5 on both sides in the front and rear directions due to extrusion;

[0041] The secondary drying assembly 403 includes two secondary drying units 403.1 arranged one above the other;

[0042] The secondary drying unit 403.1 includes a circular ring 403.11 and a blowing component 403.12, and the circular ring 403.11 and the blowing component 403.12 are respectively arranged on the left and right sides of the feed port 2, and the circular ring 403.11 is fixedly connected to the shell 1, and a baffle 403.13 is fixedly inserted in the circular ring 403.11, and the baffle 403.13 is perpendicular to the left and right directions. Two groups of guide rollers 403.14 arranged front and back are provided on the side of the baffle 403.13 close to the blowing component 403.12, and the number of guide rollers 403.14 in each group is two. The two guide rollers 403.14 in the same group are respectively arranged above and below the circular ring 403.11, and the guide rollers 403.14 are rotatably connected to the circular ring 403.11. A gap is provided between the guide roller 403.14 and the loop 403.11 in the left-right direction. The extruded cord fabric 5 passes vertically through the ring hole of the loop 403.11. The two sets of guide rollers 403.14 press the front and rear sides of the cord fabric 5 against the baffle 403.13 respectively, and the cord fabric 5 is in contact with the baffle 403.13. When the blowing component 403.12 applies hot air to the cord fabric 5 in the direction close to the baffle 403.13, the baffle 403.13 supports the cord fabric 5, thereby preventing the cord fabric 5 from being distorted in the direction of the hot air flow and causing flanges. In addition, the guide rollers 403.14 and the baffle 403.13 abut against the cord fabric 5, thereby limiting the left-right direction of the cord fabric 5, thereby further preventing flanges from being generated on the front and rear sides of the cord fabric 5.

[0043] Two guide rods 403.15 arranged in front and back are provided on the side of the baffle 403.13 away from the blowing component 403.12. The guide rods 403.15 pass through the circular ring 403.11 and are fixed to the circular ring 403.11 by a second locking screw. When the distance between the tire cord 5 and the tire cord 5 changes in the left and right directions, the second locking screw is loosened to allow the baffle 403.13 to drive the guide rods 403.15 to move left and right to a suitable position, and then the second locking screw is tightened.

[0044] In the two upper and lower adjacent drying units, the baffle 403.13 in one drying unit is located on the left side of the feed inlet 2, and the baffle 403.13 in the other drying unit is located on the right side of the feed inlet 2;

[0045] The blowing component 403.12 includes a connecting pipe 403.121, which is parallel to the front and rear directions, and both ends of the connecting pipe 403.121 are sealed. An air inlet pipe 403.122 is provided on the side of the connecting pipe 403.121 away from the baffle 403.13, and the air inlet pipe 403.122 extends to the outside of the shell 1. A hot air blower 403.123 is provided on the air inlet pipe 403.122, and the hot air blower 403.123 is fixedly set on the shell 1. A plurality of air outlet pipes 403.124 are provided on the side of the connecting pipe 403.121 close to the baffle 403.13, and the plurality of air outlet pipes 403.124 are arranged in sequence from front to back. 403.124 is parallel to the left and right directions, and a plurality of mounting holes 403.125 are provided on the circular ring 403.11. The plurality of mounting holes 403.125 correspond one to one with the plurality of air inlet pipes 403.122. The air inlet pipes 403.122 are fixedly inserted into the mounting holes 403.125. The hot air blower 403.123 is started to transport the hot air from the air inlet pipe 403.122 to the connecting pipe 403.121. The hot air in the connecting pipe 403.121 is then discharged from the air outlet pipe 403.124 and acts on the tire cord fabric 5, thereby heating the tire cord fabric 5 and completely solidifying the glue on the tire cord fabric 5. Moreover, by accelerating the flow of air, the evaporation of water in the glue is facilitated, thereby improving the drying efficiency.

[0046] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. A high-strength and high-modulus impregnated nylon cord fabric (5) production equipment, characterized by: It comprises a shell (1), wherein the top and bottom of the shell (1) are respectively provided with a feed port (2) and a discharge port (3), the feed port (2) and the discharge port (3) are arranged vertically opposite each other, and a drying mechanism (4) is provided inside the shell (1); The drying mechanism (4) comprises a primary drying component (401), an extrusion component (402) and a secondary drying component (403) arranged in sequence from top to bottom, wherein the primary drying component (401) is used to dry the glue on the tire cord fabric (5) to a semi-solidified state; The extrusion assembly (402) comprises two extrusion units (402.1) arranged symmetrically about the feed port (2); The extrusion unit (402.1) comprises a drive shaft (402.11), the drive shaft (402.11) is parallel to the front-back direction, the drive shaft (402.11) passes through the front and back sides of the housing (1), the drive shaft (402.11) is rotatably connected to the housing (1), a pressure roller (402.14) is coaxially fixedly mounted on the drive shaft (402.11), two retaining rings (402.15) are coaxially fixedly sleeved on the pressure roller (402.14), and the area between the two retaining rings (402.15) on the two pressure rollers (402.14) is an extrusion area; In the two extrusion units (402.1), a gap is provided between the two pressing rollers (402.14), and two adjacent retaining rings (402.15) on the left and right abut against each other; The secondary drying assembly (403) comprises a plurality of secondary drying units (403.1) arranged vertically; The secondary drying unit (403.1) comprises a circular ring (403.11) and a blowing component (403.12), the circular ring (403.11) and the blowing component (403.12) being respectively arranged on the left and right sides of the feed port (2), the circular ring (403.11) being fixedly connected to the outer shell (1), a baffle (403.13) being fixedly inserted into the circular ring (403.11), and the baffle (403.13) being perpendicular to the left and right directions; A locking ring (402.16) is coaxially fixedly provided on one side of the retaining ring (402.15) away from the extrusion zone. The inner diameter of the locking ring (402.16) is equal to the inner diameter of the retaining ring (402.15). The locking ring (402.16) is locked with the pressure roller (402.14) via six first locking screws (402.17). The six first locking screws (402.17) are evenly distributed circumferentially with the pressure roller (402.14) as the center. Two guide rods (403.15) arranged front to back are provided on one side of the baffle (403.13) away from the blowing component (403.12); the guide rods (403.15) pass through the circular ring (403.11); the guide rods (403.15) are fixed to the circular ring (403.11) via a second locking screw; Two groups of guide rollers (403.14) arranged front to back are provided on one side of the baffle (403.13) close to the blowing component (403.12), each group of guide rollers (403.14) having two guide rollers, the two guide rollers (403.14) in the same group being respectively arranged above and below the circular ring (403.11), the guide rollers (403.14) being rotatably connected to the circular ring (403.11), and a gap being provided between the guide rollers (403.14) and the circular ring (403.11) in the left-right direction; In two upper and lower adjacent drying units, the baffle (403.13) in one drying unit is located on the left side of the feed inlet (2), and the baffle (403.13) in the other drying unit is located on the right side of the feed inlet (2); The blowing component (403.12) comprises a connecting pipe (403.121), the connecting pipe (403.121) is parallel to the front-back direction, both ends of the connecting pipe (403.121) are sealed, an air intake pipe (403.122) is provided on a side of the connecting pipe (403.121) away from the baffle (403.13), the air intake pipe (403.122) extends to the outside of the housing (1), a hot air blower (403.123) is provided on the air intake pipe (403.122), and the hot air blower (403.123) is fixedly arranged on the housing (1), a plurality of air outlet pipes (403.124) are provided on one side of the connecting pipe (403.121) close to the baffle (403.13), the plurality of air outlet pipes (403.124) are arranged in sequence from front to back, the air outlet pipes (403.124) are parallel to the left and right directions, a plurality of mounting holes (403.125) are provided on the circular ring (403.11), the plurality of mounting holes (403.125) correspond one to one with the plurality of air inlet pipes (403.122), and the air inlet pipes (403.122) are fixedly inserted into the mounting holes (403.125).

2. The high-strength and high-modulus dipped nylon cord fabric (5) production equipment according to claim 1, characterized in that: The housing (1) consists of two front shells (101) and a rear shell (102) that are symmetrically arranged front to back.

3. The high-strength and high-modulus dipped nylon cord fabric (5) production equipment according to claim 1 or 2, characterized in that: The primary drying component (401) comprises two heating plates (401.1) arranged symmetrically about the feed port (2), with a gap provided between the two heating plates (401.1).

4. The high-strength and high-modulus dipped nylon cord fabric (5) production equipment according to claim 3, characterized in that: One end of the driving shaft (402.11) is driven by a motor (402.13).

5. The high-strength and high-modulus dipped nylon cord fabric (5) production equipment according to claim 1, characterized in that: The inner diameter of the retaining ring (402.15) is equal to the outer diameter of the pressure roller (402.14).

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