High-strength acid and alkali resistant polypropylene geotextile and manufacturing process thereof

Abstract

The application discloses high-strength acid-alkali-resistant polypropylene geotextile and a manufacturing process thereof, and particularly relates to the field of polypropylene geotextile manufacturing technology. The application comprises a base, the top end of the base is fixedly connected with a rack, the outer surface of the rack is provided with a positioning device, the positioning device comprises a sliding rod, one side of a rectangular frame is provided with a second motor, the output end of the second motor is provided with a first screw rod, the inner wall of a rectangular plate is slidably connected with two sliding blocks, and the outer surface of a pressing rod is provided with a spring. The positioning device and the auxiliary device are arranged, after the production of the polypropylene geotextile is completed, the geotextile passes between the two pressing rods before entering the surface of the winding roller, the geotextile is extruded by the two pressing rods when passing between the two pressing rods, and the nylon plate is used for adsorbing the separation and limiting of the surface of the geotextile, so that folding of the geotextile when entering the surface of the winding roller is avoided as much as possible, and the surface structure of the geotextile is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polypropylene geotextile manufacturing, in particular to high-strength acid and alkali-resistant polypropylene geotextile and its manufacturing process. BACKGROUND

[0002] Geotextile is a new type of textile used in civil engineering, water conservancy and other engineering, which has unique functions such as filtration, drainage, isolation, reinforcement and anti-seepage, can greatly improve the engineering quality, prolong the engineering life and reduce the engineering cost. The geotextile produced by polypropylene has good acid and alkali resistance, which is especially suitable for environmental protection engineering landfill and reconstruction of saline-alkali land.

[0003] In the production of polypropylene geotextile, the flattened polypropylene fiber is fed into the weaving equipment for weaving, and the polypropylene fiber is woven into geotextile of specified specifications. After weaving, the geotextile is wound by winding equipment. Since the produced geotextile usually has a large width, the geotextile is easy to fold when moving and entering the surface of the winding roller for winding, so that the angle of the geotextile entering the surface of the winding roller is deviated, resulting in the problem that the surface structure of the geotextile is damaged. SUMMARY

[0004] The present application is a high-strength acid and alkali-resistant polypropylene geotextile and its manufacturing process to solve the problem that the produced geotextile usually has a large width, and the geotextile is easy to fold when moving and entering the surface of the winding roller for winding, so that the angle of the geotextile entering the surface of the winding roller is deviated, resulting in the problem that the surface structure of the geotextile is damaged.

[0005] In order to achieve the above object, the application adopts the following technical scheme: the high-strength acid and alkali-resistant polypropylene geotextile and its manufacturing process, comprising a base, the top end of the base is provided with a weaving device, the top end of the base is provided with a plurality of guide rollers on one side close to the weaving device, the top end of the base is fixedly connected with a rack, one side of the rack is provided with a first motor, the output end of the first motor is fixedly connected with a winding roller, both ends of the winding roller rotate on the outer surface of the rack, the outer surface of the rack is provided with a positioning device, the positioning device comprises a sliding rod, the outer surface of the rack is provided with a rectangular slot, both ends of the sliding rod are slidably connected with the inner wall of the rectangular slot, the outer surface of the sliding rod is fixedly connected with a rectangular frame, one side of the rectangular frame is provided with a second motor, the output end of the second motor is provided with a first screw rod, the outer surface of the first screw rod is provided with threads in opposite directions, the outer surface of the first screw rod rotates on one side of the inner wall of the sliding rod, the outer surface of the first screw rod is threadedly connected with two rectangular rods, one end of the two rectangular rods away from the first screw rod is respectively fixedly connected with a round rod, the outer surface of the round rod slides on the inner wall of the rectangular frame, one end of the round rod away from the rectangular rod is fixedly connected with a rectangular plate, both ends of the rectangular plate slide on the inner wall of the rectangular frame, the inner wall of the rectangular plate is slidably connected with two sliding blocks, one end of the two sliding blocks is fixedly connected with a pressing rod, the outer surface of the pressing rod is provided with a spring, the upper and lower ends of the spring are respectively fixedly connected with the sides of the rectangular plate and the pressing rod close to each other.

[0006] The effect of the above component is that: by setting the pressing rod, when the polypropylene geotextile is wound by the winding roller, the polypropylene geotextile entering one end of the winding roller can pass between the two pressing rods, the second motor is operated to drive the first screw rod to rotate, one end of the two rectangular rods moves in the same direction on the outer surface of the first screw rod, the two round rods slide in the same direction on the inner wall of the rectangular frame, the two rectangular plates slide in the same direction on the inner wall of the rectangular frame, the two pressing rods approach each other, the geotextile passing between the two pressing rods will be extruded by the two pressing rods, at the same time, the two springs on one side of the pressing rod will be deformed, the sliding blocks slide on the inner wall of the rectangular plate in the direction away from the pressing rod, so that the geotextile can smoothly pass between the two pressing rods, and the restoring force of the spring after being compressed can press the pressing rod on the surface of the geotextile, so as to avoid the folding of the geotextile entering the surface of the winding roller as much as possible, which can cause the surface structure of the geotextile to be damaged.

[0007] Preferably, the sliding block is located in the interior of the spring, and the diameter of the sliding block is slightly smaller than the diameter of the spring.

[0008] The effect of the above component is that: by setting the sliding block, the interior shape of the spring can be reinforced, so as to avoid the transverse deformation of the spring as much as possible when the spring is compressed, which can affect the normal use of the spring.

[0009] Preferably, two positioning plates are fixedly connected to two ends of the rectangular plate respectively, and the sides of the two positioning plates close to each other are slidably arranged on the two sides of the rectangular frame.

[0010] The above-mentioned components achieve the effect that when the two rectangular rods control the sliding of the circular rod on the inner wall of the rectangular frame, the side of the positioning plate slides on the side of the rectangular frame, further limiting the angle between the rectangular plate and the rectangular frame, and avoiding the inclination of the angle between the rectangular plate and the rectangular frame as much as possible.

[0011] Preferably, the outer surface of the rack is fixedly connected with two U-shaped plates, the inner wall of one of the U-shaped plates is rotatably connected with a second screw, the outer surface of the second screw is threadedly connected with one end of the inner wall of the sliding rod, the inner wall of one of the U-shaped plates is fixedly connected with a positioning rod, and the end of the inner wall of the sliding rod away from the second screw slides on the outer surface of the positioning rod.

[0012] The above-mentioned components achieve the effect that rotating the second screw can control the up-and-down movement of the two ends of the sliding rod on the outer surfaces of the second screw and the positioning rod and the inner wall of the rectangular groove, and adjust and fix the height position of the sliding rod and the rectangular frame.

[0013] Preferably, the two ends of the sliding rod are fixedly connected with square blocks respectively, and the side of each square block slides on the side of the rack.

[0014] The above-mentioned components achieve the effect that when the second screw controls the up-and-down movement of the sliding rod, the side of each square block slides on the side of the rack, further limiting the angle between the sliding rod and the rack, and avoiding the shaking of the sliding rod as much as possible.

[0015] Preferably, the top end of the second screw is fixedly connected with a disc, and the top end of the disc is rotatably connected with a handle.

[0016] The above-mentioned components achieve the effect that rotating the disc on the outer surface of the handle can more conveniently control the rotation of the second screw to adjust the height position of the sliding rod.

[0017] Preferably, the outer surface of the pressing rod is provided with an auxiliary device, the auxiliary device comprises two nylon plates, the side of each nylon plate is fixedly connected with two bolts, the outer surface of each bolt is threadedly connected with a threaded ring, the top end of the pressing rod is fixedly connected with two groove blocks, and the outer surface of each groove block is provided with a through hole.

[0018] The effect achieved by the above components is that the two bolts on one side of the two nylon plates are respectively inserted through the through holes of the two groove blocks at the top of the two pressing rods, then the threaded ring is sleeved on the outer surface of the bolt, the threaded ring is moved on the outer surface of the bolt by rotating the threaded ring, and the nylon plate is fixed on one side of the pressing rod by pressing one side of the threaded ring against the outer surface of the groove block. When the geotextile passes between the two nylon plates, friction with the surface of the nylon plate will generate static electricity on the surface of the nylon plate, and the protruding fibers on the surface of the geotextile can be adsorbed on the surface of the nylon plate through the static electricity on the surface of the nylon plate.

[0019] Preferably, one side of the groove block is fixedly connected with an elastic rope, and one end of the elastic rope away from the groove block is fixedly connected with one side of the threaded ring.

[0020] The effect achieved by the above components is that the threaded ring can be fixed on one side of the groove block by setting the elastic rope, which facilitates the installation of the nylon plate and avoids the loss of the threaded ring when the nylon plate is removed.

[0021] Preferably, one side of the nylon plate is fixedly connected with a pull rod, and the cross-sectional shape of the pull rod is U-shaped.

[0022] The effect achieved by the above components is that holding the outer surface of the U-shaped pull rod can more conveniently take the nylon plate for disassembly and assembly work.

[0023] Preferably, the manufacturing process of the high-strength acid and alkali resistant polypropylene geotextile comprises the following steps:

[0024] S1, heating the polypropylene particles to a molten state by a melting device, and extruding the molten polypropylene into continuous fiber filaments by an extruder;

[0025] S2, the polypropylene fiber filaments are stretched again and contracted by a stretching device, and then the fibers are cut into short fibers by a cutting device, and then the fibers are placed in a machine to flatten to form a uniform fiber layer;

[0026] S3, the fiber filaments are introduced into the inside of the weaving device, the fiber filaments are woven into polypropylene geotextile by the weaving device, and the processed geotextile is moved on the surface of the guide roller through the outlet of the weaving device. One end of the geotextile is wound around the surface of the winding roller between the two pressing rods of the positioning device, and the first motor on the outer surface of the operation rack drives the winding roller to rotate to wind the geotextile on the outer surface of the winding roller.

[0027] In summary, the beneficial effects of the present application are:

[0028] By setting the positioning device, the geotextile is made to pass through the two pressing rods before entering the surface of the winding roller after the production of the polypropylene geotextile is completed, so that the geotextile is extruded by the two pressing rods when passing through the two pressing rods, and the nylon plate is used to adsorb the separation limit of the surface of the geotextile, so as to avoid the folding of the geotextile when entering the surface of the winding roller as much as possible, and the surface structure of the geotextile is damaged. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a perspective view of the present application;

[0030] Figure 2 is a perspective view of the base of the present application;

[0031] Figure 3 is a perspective view of the present application Figure 2 is a perspective view of the base of the present application;

[0032] Figure 4 is a perspective view of the base of the present application;

[0033] Figure 5 is a perspective view of the sliding rod of the present application;

[0034] Figure 6 is a perspective view of the rectangular frame of the present application;

[0035] Figure 7 is a perspective view of the rectangular plate of the present application;

[0036] Figure 8 is a perspective view of the pressing rod of the present application;

[0037] Figure 9 is a perspective view of the present application Figure 8 is a perspective view of the base of the present application;

[0038] Figure 10 is a perspective view of the nylon plate of the present application.

[0039] BRIEF DESCRIPTION OF DRAWINGS:

[0040] 1, base; 2, positioning device; 3, auxiliary device; 4, weaving device; 5, guide roller; 6, frame; 7, first motor; 8, winding roller; 21, rectangular groove; 22, sliding rod; 23, rectangular frame; 24, second motor; 25, first screw rod; 26, rectangular rod; 27, round rod; 28, rectangular plate; 29, sliding block; 210, pressing rod; 211, spring; 212, positioning plate; 213, U-shaped plate; 214, second screw rod; 215, positioning rod; 216, disc; 217, handle; 218, square block; 31, groove block; 32, through hole; 33, bolt; 34, nylon plate; 35, threaded ring; 36, pull rod; 37, elastic rope. DETAILED DESCRIPTION

[0041] REFERENCE Figures 1-7The embodiment shown discloses high-strength acid and alkali-resistant polypropylene geotextile, including base 1, the top of base 1 is provided with weaving device 4, the top of base 1 is provided with a plurality of guide rollers 5 on the side close to weaving device 4, the top of base 1 is fixedly connected with rack 6, one side of rack 6 is provided with first motor 7, the output end of first motor 7 is fixedly connected with winding roller 8, the both ends of winding roller 8 rotate on the outer surface of rack 6, the outer surface of rack 6 is provided with positioning device 2, positioning device 2 includes sliding rod 22, the outer surface of rack 6 is provided with rectangular slot 21, the both ends of sliding rod 22 are slidably connected with the inner wall of rectangular slot 21, the outer surface of sliding rod 22 is fixedly connected with rectangular frame 23, one side of rectangular frame 23 is provided with second motor 24, the output end of second motor 24 is provided with first screw rod 25, the outer surface of first screw rod 25 is provided with opposite threads, the outer surface of first screw rod 25 rotates on the inner wall side of sliding rod 22, the outer surface of first screw rod 25 is threadedly connected with two rectangular rods 26, the ends, away from first screw rod 25, of the two rectangular rods 26 are respectively fixedly connected with round rods 27, the outer surface of round rods 27 slides on the inner wall of rectangular frame 23, the end, away from rectangular rod 26, of round rod 27 is fixedly connected with rectangular plate 28, the both ends of rectangular plate 28 slide on the inner wall of rectangular frame 23, the inner wall of rectangular plate 28 is slidably connected with two sliding blocks 29, one end of the two sliding blocks 29 is fixedly connected with pressing rod 210, the outer surface of pressing rod 210 is provided with spring 211, the upper and lower ends of spring 211 are respectively fixedly connected with the sides, close to each other, of rectangular plate 28 and pressing rod 210, by setting pressing rod 210, when polypropylene geotextile is wound by winding roller 8, the polypropylene geotextile entering the one end of winding roller 8 can pass through the two pressing rods 210, operating second motor 24 to drive first screw rod 25 to rotate, the one end of the two rectangular rods 26 moves on the outer surface of first screw rod 25 in the same direction, drives the two round rods 27 to slide on the inner wall of rectangular frame 23 in the same direction, the two rectangular plates 28 slide on the inner wall of rectangular frame 23 in the same direction, the two pressing rods 210 are close to each other, when geotextile passes through the two pressing rods 210, the geotextile is extruded by the two pressing rods 210, at the same time, the two springs 211 on the side of pressing rod 210 are deformed, the sliding blocks 29 slide on the inner wall of rectangular plate 28 in the direction away from pressing rod 210, so that the geotextile can smoothly pass through the two pressing rods 210, at the same time, the deformation recovery force of compressed spring 211 can press pressing rod 210 on the surface of geotextile, as far as possible to avoid the folding of geotextile when entering the surface of winding roller 8, which causes the surface structure of geotextile to be damaged.

[0042] With reference to Figures 2-8As shown in the figure, the embodiment discloses that the slider 29 is located inside the spring 211, the diameter of the slider 29 is slightly smaller than the diameter of the spring 211, the inside shape of the spring 211 can be reinforced by arranging the slider 29, and the transverse deformation of the spring 211 when being compressed is avoided as much as possible, and the normal use of the spring 211 is affected.

[0043] Referring to Figures 2-8 As shown in the figure, the embodiment discloses that the two ends of the rectangular plate 28 are respectively fixedly connected with two positioning plates 212, the sides of the two positioning plates 212 close to each other are respectively located on the two sides of the rectangular frame 23, when the two rectangular rods 26 are controlled to drive the circular rod 27 to slide on the inner wall of the rectangular frame 23 by rotating the first screw rod 25, one side of the positioning plate 212 will slide on one side of the rectangular frame 23, the angle between the rectangular plate 28 and the rectangular frame 23 is further limited, and the angle between the rectangular plate 28 and the rectangular frame 23 is avoided to be inclined as much as possible.

[0044] Referring to Figures 2-8 As shown in the figure, the embodiment discloses that the outer surface of the rack 6 is fixedly connected with two U-shaped plates 213, the inner wall of one U-shaped plate 213 is rotatably connected with a second screw rod 214, the outer surface of the second screw rod 214 is threadedly connected with one end of the inner wall of the sliding rod 22, the inner wall of one U-shaped plate 213 is fixedly connected with a positioning rod 215, and the other end of the inner wall of the sliding rod 22 away from the second screw rod 214 slides on the outer surface of the positioning rod 215. Rotating the second screw rod 214 can control the two ends of the sliding rod 22 to move up and down on the outer surfaces of the second screw rod 214 and the positioning rod 215 and the inner wall of the rectangular groove 21, the height positions of the sliding rod 22 and the rectangular frame 23 are adjusted and fixed, the two ends of the sliding rod 22 are respectively fixedly connected with square blocks 218, one side of the square block 218 slides on one side of the rack 6, and when the sliding rod 22 moves up and down by rotating the second screw rod 214, one side of each of the two square blocks 218 will slide on one side of the rack 6, the angle between the sliding rod 22 and the rack 6 is further limited, and the sliding rod 22 is avoided to shake as much as possible when moving, the top end of the second screw rod 214 is fixedly connected with a disc 216, the top end of the disc 216 is rotatably connected with a handle rod 217, and rotating the disc 216 on the outer surface of the handle rod 217 can more conveniently control the rotation of the second screw rod 214 to adjust the height position of the sliding rod 22.

[0045] Referring to Figure 1 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown in FIG. 1 and 2, the embodiment discloses that the outer surface of the pressing rod 210 is provided with an auxiliary device 3, the auxiliary device 3 comprises two nylon plates 34, one side of the nylon plate 34 is fixedly connected with two bolts 33, the outer surface of the bolt 33 is threadedly connected with a threaded ring 35, the top end of the pressing rod 210 is fixedly connected with two groove blocks 31, the outer surface of the groove block 31 is provided with a through hole 32, the two bolts 33 on one side of the two nylon plates 34 are respectively threaded through the through holes 32 of the two groove blocks 31 at the top end of the two pressing rods 210, then the threaded ring 35 is sleeved on the outer surface of the bolt 33, the threaded ring 35 is rotated to move the threaded ring 35 on the outer surface of the bolt 33, and the one side of the threaded ring 35 is pressed against the outer surface of the groove block 31, so that the nylon plate 34 is fixed on one side of the pressing rod 210, when the geotextile passes between the two nylon plates 34, the surface of the nylon plate 34 generates static electricity due to friction, and the protruding fiber silk on the surface of the geotextile is adsorbed on the surface of the nylon plate 34 through the static electricity on the surface of the nylon plate 34.

[0046] Referring to Figure 1 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown in FIG. 1 and 2, the embodiment discloses that the outer surface of the pressing rod 210 is provided with an auxiliary device 3, the auxiliary device 3 comprises two nylon plates 34, one side of the nylon plate 34 is fixedly connected with two bolts 33, the outer surface of the bolt 33 is threadedly connected with a threaded ring 35, the top end of the pressing rod 210 is fixedly connected with two groove blocks 31, the outer surface of the groove block 31 is provided with a through hole 32, the two bolts 33 on one side of the two nylon plates 34 are respectively threaded through the through holes 32 of the two groove blocks 31 at the top end of the two pressing rods 210, then the threaded ring 35 is sleeved on the outer surface of the bolt 33, the threaded ring 35 is rotated to move the threaded ring 35 on the outer surface of the bolt 33, and the one side of the threaded ring 35 is pressed against the outer surface of the groove block 31, so that the nylon plate 34 is fixed on one side of the pressing rod 210, when the geotextile passes between the two nylon plates 34, the surface of the nylon plate 34 generates static electricity due to friction, and the protruding fiber silk on the surface of the geotextile is adsorbed on the surface of the nylon plate 34 through the static electricity on the surface of the nylon plate 34.

[0047] The working principle is: when producing polypropylene geotextile, polypropylene particles are heated to a molten state through a melting device, the molten polypropylene is extruded into continuous fiber filaments through an extruder, the polypropylene fiber filaments are stretched and contracted again through a stretching device, and then the fibers are cut into short fibers through a cutting device, and then the fibers are placed in the machine to flatten to form a uniform fiber layer. Before weaving the polypropylene fiber filaments through the weaving device 4, the two bolts 33 on one side of the two nylon plates 34 can pass through the through holes 32 in the two slot blocks 31 at the top of the two pressure rods 210, respectively, and then the threaded ring 35 is sleeved on the outer surface of the bolt 33. Rotate the threaded ring 35 to make the threaded ring 35 move on the outer surface of the bolt 33, and press the threaded ring 35 on one side of the slot block 31 to fix the nylon plate 34 on one side of the pressure rod 210. Then the fiber filaments are introduced into the inside of the weaving device 4, and the fiber filaments are woven into polypropylene geotextile through the weaving device 4. The geotextile after processing enters the surface of the guide roller 5 through the outlet of the weaving device 4 and moves, rotates the disc 216 held in the outer surface of the grip rod 217 to control the rotation of the second screw 214 to make the both ends of the sliding rod 22 slide in the inner wall of the rectangular groove 21, adjust the height position of the sliding rod 22 and the rectangular frame 23, then pass one end of the geotextile between the two pressure rods 210 of the positioning device 2 and wind it on the surface of the winding roller 8. Operate the first motor 7 on the outer surface of the rack 6 to drive the winding roller 8 to rotate to wind the geotextile on the outer surface of the winding roller 8. When the geotextile passes between the two pressure rods 210, it will be extruded by the two pressure rods 210, which will cause the two springs 211 on one side of the pressure rod 210 to deform, and the sliding block 29 will slide in the inner wall of the rectangular plate 28 away from the pressure rod 210, so that the geotextile can smoothly pass between the two pressure rods 210. The restoring force of the compressed spring 211 can press the pressure rod 210 against the surface of the geotextile to avoid folding as much as possible when the geotextile enters the surface of the winding roller 8. At the same time, the friction between the geotextile and the surface of the nylon plate 34 will generate static electricity on the surface of the nylon plate 34, and the protruding fiber filaments on the surface of the geotextile will be attracted to the surface of the nylon plate 34 through the static electricity on the surface of the nylon plate 34.

[0048] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any person skilled in the art can make changes or modifications to the above disclosed technical contents into equivalent embodiments applied to other fields, but without departing from the technical solution content of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the protection scope of the technical solution of the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A device for manufacturing high-strength acid and alkali resistant polypropylene geotextile, characterized in that: The system includes a base (1), a weaving device (4) at the top of the base (1), and several guide rollers (5) on the side of the top of the base (1) near the weaving device (4). A frame (6) is fixedly connected to the top of the base (1), and a first motor (7) is provided on one side of the frame (6). A take-up roller (8) is fixedly connected to the output end of the first motor (7). The two ends of the take-up roller (8) rotate on the outer surface of the frame (6). A positioning device (2) is provided on the outer surface of the frame (6). The positioning device (2) includes a sliding rod (22). A rectangular groove (21) is opened on the outer surface of the frame (6). The two ends of the sliding rod (22) are... The end of the sliding rod (22) is slidably connected to the inner wall of the rectangular groove (21). A rectangular frame (23) is fixedly connected to the outer surface of the sliding rod (22). A second motor (24) is provided on one side of the rectangular frame (23). A first screw (25) is provided at the output end of the second motor (24). The outer surface of the first screw (25) is provided with threads in opposite directions. The outer surface of the first screw (25) rotates on one side of the inner wall of the sliding rod (22). Two rectangular rods (26) are threadedly connected to the outer surface of the first screw (25). A round rod (27) is fixedly connected to the end of the two rectangular rods (26) away from the first screw (25). The outer surface of the round rod (27) is in the rectangular groove (21). The inner wall of the rectangular frame (23) slides. The end of the round rod (27) away from the rectangular rod (26) is fixedly connected to a rectangular plate (28). The two ends of the rectangular plate (28) slide on the inner wall of the rectangular frame (23). Two sliders (29) are slidably connected to the inner wall of the rectangular plate (28). One end of the two sliders (29) is fixedly connected to a pressure rod (210). A spring (211) is provided on the outer surface of the pressure rod (210). The upper and lower ends of the spring (211) are fixedly connected to the sides of the rectangular plate (28) and the pressure rod (210) that are close to each other. An auxiliary device (3) is provided on the outer surface of the pressure rod (210). The auxiliary device (3) includes two nylons. The nylon plate (34) has two bolts (33) fixedly connected to one side. The outer surface of the bolts (33) is threaded with a threaded ring (35). The top of the pressure rod (210) has two groove blocks (31) fixedly connected. The outer surface of the groove block (31) is provided with a through hole (32). An elastic rope (37) is fixedly connected to one side of the groove block (31). The end of the elastic rope (37) away from the groove block (31) is fixedly connected to one side of the threaded ring (35). A tie rod (36) is fixedly connected to one side of the nylon plate (34). The cross-sectional shape of the tie rod (36) is U-shaped. The geotextile comes into contact with the surface of the nylon plate (34) and generates friction.

2. The high-strength acid and alkali resistant polypropylene geotextile manufacturing device according to claim 1, characterized in that: The slider (29) is located inside the spring (211), and the diameter of the slider (29) is slightly smaller than the diameter of the spring (211).

3. The high-strength acid and alkali resistant polypropylene geotextile manufacturing device according to claim 2, characterized in that: Two positioning plates (212) are fixedly connected to both ends of the rectangular plate (28), and the two positioning plates (212) slide on both sides of the rectangular frame (23) with their sides close to each other.

4. The high-strength acid and alkali resistant polypropylene geotextile manufacturing device according to claim 3, characterized in that: Two U-shaped plates (213) are fixedly connected to the outer surface of the frame (6). A second screw (214) is rotatably connected to the inner wall of one of the U-shaped plates (213). The outer surface of the second screw (214) is threadedly connected to one end of the inner wall of the sliding rod (22). A positioning rod (215) is fixedly connected to the inner wall of one of the U-shaped plates (213). The end of the inner wall of the sliding rod (22) away from the second screw (214) slides on the outer surface of the positioning rod (215).

5. The high-strength acid and alkali resistant polypropylene geotextile manufacturing device according to claim 4, characterized in that: The sliding rod (22) has blocks (218) fixedly connected to both ends, and one side of the block (218) slides on one side of the frame (6).

6. The high-strength acid and alkali resistant polypropylene geotextile manufacturing device according to claim 5, characterized in that: The top end of the second screw (214) is fixedly connected to a disc (216), and the top end of the disc (216) is rotatably connected to a handle (217).

7. A manufacturing process for a high-strength, acid- and alkali-resistant polypropylene geotextile, characterized in that: The apparatus for manufacturing high-strength acid and alkali resistant polypropylene geotextile according to any one of claims 1-6 comprises the following steps: S1. Polypropylene granules are heated to a molten state using a melting device, and the molten polypropylene is extruded into continuous fiber filaments using an extruder. S2. The polypropylene fiber filaments are stretched and shrunken again by stretching equipment, and then the fibers are cut into short fibers by cutting equipment. The fibers are then placed in a machine to flatten them to form a uniform fiber layer. S3. The fiber filaments are introduced into the weaving device (4) and woven into polypropylene geotextile by the weaving device (4). After processing, the geotextile enters the surface of the guide roller (5) through the outlet of the weaving device (4) and moves. One end of the geotextile passes between the two pressure bars (210) of the positioning device (2) and is wound around the surface of the take-up roller (8). The first motor (7) on the outer surface of the operating frame (6) drives the take-up roller (8) to rotate and wind the geotextile around the outer surface of the take-up roller (8) for winding.

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