CN113715360B

CN113715360B - TPU high-pressure water hose production process and full-automatic production equipment thereof

Info

Publication number: CN113715360B
Application number: CN202111136291.3A
Authority: CN
Inventors: 戴协俭
Original assignee: Zhejiang Hongjiang New Material Co ltd
Current assignee: Zhejiang Hongjiang New Material Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2023-03-14
Anticipated expiration: 2041-09-27
Also published as: CN113715360A

Abstract

The invention discloses a TPU high-pressure water hose production process and full-automatic production equipment thereof. The production process comprises the following steps: a. base cloth pretreatment: the grey cloth is selected from a base cloth roll with low shrinkage and high strength; coating water-based PU glue or TPU hot melt glue on the grey cloth by using a blade coating machine, drying and rolling; b. bonding the base cloth with the TPU wear-resistant layer: casting and processing the TPU into a TPU wear-resistant layer by using a casting machine, pressing into a plane, drying and rolling; c. double-sided coating: bonding the TPU wear-resistant layer and the inner layer of the base cloth to form a double surface; d. slitting and rolling: slitting and winding according to the width of the product specification; e. hot-press molding: superposing two ends of the base cloth, and performing hot-press sealing molding on a hot press for special hot-press sealing molding; and rolling the finished product, and cooling to obtain the water band. The invention has the following beneficial effects: the production process of the TPU high-pressure water band can provide a TPU high-pressure water band which has the advantages of large caliber, wide application range, strong compression resistance, light weight, strong oil resistance, wear resistance and low temperature resistance, and finally has long service life.

Description

TPU high-pressure water hose production process and full-automatic production equipment thereof

Technical Field

The invention relates to a TPU high-pressure water hose production process and full-automatic production equipment thereof.

Background

A water hose generally refers to a flexible coilable round or flat tubular body of a certain length formed by combining a tubular fabric layer woven from warp and weft threads and a liner or cover layer by steam vulcanization or an adhesive. As the variety of the fire hose is more, the structure of the fire hose also has various types, but the basic structure comprises 5 parts of a fabric layer, a lining, a coating, a covering layer and an adhesive layer. The fabric layer is a framework material of the water hose, provides high pressure resistance and wear resistance for the water hose, and is generally woven by fiber materials such as cotton, polyester, chinlon and the like. The lining is a waterproof layer which is smooth and has certain strength and is arranged on the inner wall of the fabric layer, so that smooth conveying of water or other liquid is ensured, and the used materials mainly comprise rubber, PVC, TPU and the like. The coating and the covering layer are high molecular materials of the outer layer of the fabric layer, have the performances of water resistance, heat resistance, wear resistance, corrosion resistance, aging resistance, flame retardance and the like, and have the protection effect on the fabric layer and the lining, and the used materials mainly comprise polyurethane, PU coating, acrylate coating and other materials. The adhesive layer is a high molecular material which has an adhesive effect between the fabric layer and the lining or between the fabric layer and the covering layer, so that the fabric layer, the lining and the covering layer are firmly integrated, and the used materials mainly comprise rubber type solid adhesives, solvent type PU adhesives, PU solid hot melt adhesives, polyolefin hot melt adhesives, resorcinol-formaldehyde resin adhesives and the like.

However, the oil resistance, wear resistance and low temperature resistance of the common water hose are poor, and the production process of the water hose needs to be further improved.

Disclosure of Invention

The invention aims to provide a production process of a TPU high-pressure water hose. The production process of the TPU high-pressure water band can provide a TPU high-pressure water band which has the advantages of large caliber, wide application range, strong compression resistance, light weight, strong oil resistance, wear resistance and low temperature resistance, and finally has long service life.

The invention aims to be realized by the following technical scheme:

1. a TPU high-pressure water hose production process comprises the following steps:

a. base cloth pretreatment: the grey cloth is selected from a base cloth roll with low shrinkage and high strength; wherein the shrinkage rate is 0.6-0.8%; the strength is 300-500mPa; coating water-based PU glue or TPU hot melt glue on the gray cloth by a blade coating machine, wherein the thickness is 0.01-0.05mm, drying and rolling;

b. bonding the base cloth with the TPU wear-resistant layer: casting and processing the TPU into a TPU wear-resistant layer by using a casting machine, wherein the thickness of the TPU wear-resistant layer is 0.2-0.8mm, and the components of the TPU wear-resistant layer are adjusted according to different property requirements; bonding the TPU wear-resistant layer with the base fabric into a plane shape through water-based PU adhesive or TPU hot melt adhesive by using a noodle press at the speed of 0.2-0.5 m/s; drying and rolling;

c. double-sided coating: repeating the step a and the step b, and bonding the TPU wear-resistant layer and the back of the base cloth to form double surfaces;

d. slitting and rolling: cutting and winding according to the width of the product specification, and cutting according to the size requirement;

e. hot-press molding: unreeling the base cloth by using a reeling machine, controlling two ends of the base cloth in the running process of the base cloth, overlapping the two ends of the base cloth, and forming the overlapped part at the hot-press sealing opening of a hot press for special hot-press sealing opening forming at the temperature of 220-300 ℃; the hot press is used for arranging a hot air gun on the opposite side of the cut gray cloth, external plastic is melted by the hot air gun at the temperature of 220-300 ℃, and the pressing edge is used for direct hot-press forming, namely bonding; the processing speed is 10-30m/s, and the processing speed is high; and winding the finished product by the winding machine at the speed of 5-15m/s, and cooling to obtain the water band.

The invention is further configured to: the TPU hot melt adhesive also comprises 10-15 parts of polytetrahydrofuran glycol, 1000 parts of TPU raw materials, 30-70 parts of carboxymethyl cellulose, 10-20 parts of sodium stearate and 10-15 parts of polytetrahydrofuran glycol are prepared according to the weight part ratio, and the components are dehumidified and dried.

The invention is further configured to: also comprises the following inner and outer layer coating steps:

f. internally coating the blank cloth with TPU coating liquid, wherein the content of the TPU coating liquid is more than or equal to 35 percent, and the viscosity is more than or equal to 4 ten thousand mPa.s;

g. curing the inner coating of the grey cloth by using a drying column; the curing temperature is 110 ℃; the curing time is 1200s;

h. starting a coating press roller, coating the outer layer of the gray cloth with TPU coating liquid, and uniformly coating the TPU coating liquid on the surface of the gray cloth;

i. the drying column is used for carrying out primary curing on the outer coating of the gray cloth, and the curing temperature is 80 ℃; the curing time is 600s-1200s;

j. hot-pressing the gray cloth by using a hot press, wherein the hot-pressing temperature is 120 ℃, and the hot-pressing time is 800s;

k. cooling, namely, coiling and subpackaging when the temperature is lower than 35 ℃.

The invention also aims to provide full-automatic production equipment for the TPU high-pressure water band. The full-automatic production equipment for the TPU high-pressure water hose can realize full-automatic production of the TPU high-pressure water hose, and is high in production efficiency.

The other purpose of the invention is realized by the following technical scheme:

the utility model provides a full automatic production equipment of TPU high pressure hosepipe, is including being used for carrying the conveyor to the greige cloth, be used for cutting the greige cloth cutting device, be used for to the coated TPU layer of greige cloth inlayer and heating drying's undercoating device, be used for to the overcoating device of the outer coated TPU layer of greige cloth, be used for retrieving the interior and exterior recovery unit who coats the hosepipe on TPU layer, be used for carrying out hot press's hot press unit to the hosepipe skin.

The invention is further configured to: the conveying device comprises a support, and the support is respectively provided with an unwinding wheel and more than one guide wheel.

The invention is further configured to: the cutting device comprises a cutting table, a cutting groove is formed in the cutting table, mounting frames are arranged on two sides of the middle of the cutting groove, a first air cylinder is fixedly connected to the middle of each mounting frame, a cutter is connected to each air cylinder, two ends of each cutter are connected with a sliding frame in a sliding mode, and the sliding frames are fixedly connected with the cutting table.

The invention is further configured to: the utility model discloses a device for coating fox, including interior coating device, ejector pin one end fixedly connected with aerifys the post, it aerifys the hole to aerify to be provided with a plurality of on the post, it is connected with the gas tube to aerify the post bottom, the gas tube is connected with the air pump, it stabilizes the post to aerify post one end fixedly connected with, it coats the post to stabilize post one end fixedly connected with, it is provided with a plurality of coating holes on the coating post, be connected with the feeding case on the coating post, be provided with the solenoid valve between feeding case and the coating post, all be provided with the gauze on every coating hole that the coating capital portion of bushou was connected with, coating post one end is connected with the post that dries, dry between post and the coating post through magnetic force effect be connected, drying post one end is connected with the heating rod through the bearing.

The invention is further configured to: the air pump and the feeding box are respectively provided with a first sliding rod and a second sliding rod which are provided with tooth blocks, the first sliding rod and the second sliding rod are meshed with a gear together, and the middle part of the gear is connected with a rotating motor.

The invention is further configured to: the outer coating device comprises a coating compression roller, one end of the coating compression roller is connected with a driving motor, the driving motor is connected with a driving column, the driving column is fixedly connected with a workbench, and the top of the driving motor is connected with a second air cylinder.

The invention is further configured to: the recovery unit includes the fixing base with heating rod fixed connection, and the fixing base both sides are connected with the seat that slides, the seat bottom of sliding is connected with cylinder three, the heating rod bottom is connected with the heating motor, heating motor one side is connected with cylinder four, cylinder four bottoms is provided with the fixed plate, fixed plate one side is connected with cylinder five.

The invention is further configured to: the hot pressing device comprises a lower hot pressing plate, the lower hot pressing plate is connected with a first hydraulic cylinder, the lower hot pressing plate is correspondingly provided with a base, a hollow groove is formed in the middle of the base, a fixing rod is arranged on the base, the fixing rod is connected with an upper hot pressing plate in a sliding mode, and the upper hot pressing plate is connected with a second hydraulic cylinder.

In summary, the present invention has the following advantageous objects: the TPU high-pressure water band produced by the production process and the full-automatic production equipment has the characteristics of large caliber, wide application range, strong pressure resistance, light weight, strong oil resistance, wear resistance and low temperature resistance, and finally long service life; specifically, the processing speed is high, the yield is more than three times of that of the prior art, the pressure resistance is higher, and the production efficiency is high; the thickness is small, which is close to 1/2 of that of the water band produced by the prior art; the formula of the TPU wear-resistant layer is variable, and the yellowing resistance, oil resistance, hydrolysis resistance or wear resistance of the water tape are improved; in addition, compare in prior art, the greige cloth that this application file relates to need not production, only needs prefabricated greige cloth in advance, and the width is adjustable, can cut at any time, has reduced semi-manufactured goods inventory, increases enterprise cash flow. The caliber of the produced water hose is larger, and the production speed is higher. In addition, the internal structure of the belt blank is in a grid shape, and the pressure resistance pressure exceeds that of the existing water belt under the condition that the thickness of the internal structure is half thinner than that of the water belt in the prior art. Finally, the production energy consumption of the water hose related to the application document is greatly reduced, the power consumption is reduced by nearly half compared with that of a water hose produced conventionally, the water hose is relatively environment-friendly and low in cost, the size of the water bag manufactured by the water hose process related to the application document can be switched at any time, and a mold does not need to be replaced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the embodiment with the hot press device removed;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is an enlarged view of area A in FIG. 4;

FIG. 6 is an enlarged view of area B of FIG. 4;

fig. 7 is an enlarged view of the region C in fig. 4.

Reference numerals are as follows: 1. a conveying device; 11. a support; 12. unwinding wheels; 13. a guide wheel; 2. a cutting device; 21. cutting table; 22. grooving; 23. a mounting frame; 24. a first cylinder; 25. a cutter; 26. a sliding frame; 3. an inner coating device; 301. a top rod; 302. a jaw; 303. an inflatable column; 304. an inflation hole; 305. an inflation tube; 306. an air pump; 307. a stabilization post; 308. coating the column; 309. coating the holes; 310. a feeding box; 311. drying the column; 312. a heating rod; 313. a first sliding rod; 314. a second sliding rod; 315. a gear; 316. rotating the motor; 4. an outer coating device; 41. coating a compression roller; 42. a drive motor; 43. a drive column; 44. a work table; 45. a second air cylinder; 5. a recovery unit; 51. a fixed seat; 52. a sliding seat; 53. a third cylinder; 54. a heating motor; 55. a cylinder IV; 56. a fixing plate; 57. a fifth cylinder; 6. a hot pressing device; 61. a lower hot pressing plate; 62. a first hydraulic cylinder; 63. a base; 64. an empty groove; 65. a fixing rod; 66. an upper hot pressing plate; 67. and a second hydraulic cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the present invention.

A TPU high-pressure water hose production process comprises the following steps:

b. bonding the base cloth with the TPU wear-resistant layer: casting and processing the TPU into a TPU wear-resistant layer by using a casting machine, wherein the thickness of the TPU wear-resistant layer is 0.2-0.8mm, and the components of the TPU wear-resistant layer are adjusted according to different property requirements; bonding and pressing the TPU wear-resistant layer and the base fabric into a plane shape through water-based PU glue or TPU hot melt adhesive by a noodle press at the speed of 0.2-0.5 m/s; drying and rolling;

c. double-sided coating: repeating the step a and the step b, and bonding the TPU wear-resistant layer with the back of the base cloth to form double sides;

The TPU hot melt adhesive also comprises 10-15 parts of polytetrahydrofuran glycol, 1000 parts of TPU raw materials, 30-70 parts of carboxymethyl cellulose, 10-20 parts of sodium stearate and 10-15 parts of polytetrahydrofuran glycol are prepared according to the weight part ratio, and dehumidification and drying are carried out.

In order to improve the corrosion resistance and puncture resistance of the finished high-pressure water band, the inner layer and the outer layer of the high-pressure water band are subjected to film coating treatment;

k. cooling, i.e. when the temperature is lower than 35 ℃, coiling and subpackaging.

The coating process flow is shown in fig. 1, and the full-automatic production equipment for the TPU high-pressure water hose comprises a conveying device 1 for conveying the gray cloth, a cutting device 2 for slitting the gray cloth, an inner coating device 3 for coating the TPU layer on the inner layer of the gray cloth and heating and drying, an outer coating device 4 for coating the TPU layer on the outer layer of the gray cloth, a recovery device 5 for recovering the water hose coated with the TPU layer inside and outside, and a hot pressing device 6 for hot pressing the outer layer of the water hose.

1. Conveying device 1

As shown in fig. 2, the conveying device 1 includes a support 11, and an unwinding wheel 12 and two guiding wheels 13 for unwinding a blank cloth are respectively disposed on the support 11. When the unwinding wheel 12 unwinds the greige cloth, the greige cloth is in a compressed state.

2. Cutting device 2

As shown in fig. 2 and 7, the cutting device 2 includes a cutting table 21. The cutting table 21 is provided with a cutting groove 22 having a width approximately equal to the width of the raw fabric. The sheet passes the two guide wheels 13 and enters the slit 22. Two sides of the middle part of the cutting groove 22 are provided with a mounting rack 23 shaped like a Chinese character 'men'. The middle part of the mounting frame 23 is fixedly connected with a first air cylinder 24. The first cylinder 24 is connected with a cutting knife 25. The two ends of the cutter 25 are connected with a sliding frame 26 in a sliding way. The sliding frame 26 is fixedly connected with the cutting table 21. When the first cylinder 24 works, the cutter 25 is driven to move downwards, the cutter 25 moves downwards to cut the raw cloth entering the cutting groove 22, and the raw cloth at one end is obtained after each cutting.

3. Undercoating device 3

As shown in fig. 3, 4, 5 and 6, the inner coating device 3 includes a mandrel 301 disposed in the slot 22. The mandril 301 is opposite to the center of the gray cloth. The ejector rod 301 is used for opening a small hole in the middle of the gray cloth, so that the subsequent inflation process is facilitated. The two sides of the mandril 301 are provided with claws 302. The claws 302 are used for grabbing two sides of the fabric, so that the claws 302 can drive the fabric to move. The principle and process of grasping the jaws 302 are prior art and will not be described further.

When the top of the post rod 301 penetrates into the gray cloth and the small hole is opened, the claw 302 can clamp the gray cloth. Then, the jaws 302 drive the fabric to move continuously, so that the lift pins 301 penetrate into the fabric.

One end of the mandril 301 is fixedly connected with an inflatable column 303. A plurality of inflation holes 304 are provided on the inflation column 303. The bottom of the inflatable column 303 is connected with an inflatable tube 305, and the inflatable tube 305 is connected with an air pump 306. The air pump 306 can pump air through the air tube 305 and down the air inflation hole 304 into the air post 303. When the gripper 302 continues to drive the gray cloth to move, the middle part of the gray cloth gradually expands because the diameter of the inflating column 303 is larger than that of the ejector rod 301. Meanwhile, under the inflation action of the air pump 306, the inside of the greige cloth is inflated and expanded, so that the greige cloth in a compressed state is inflated and expanded into a cylindrical shape.

One end of the inflatable column 303 is fixedly connected with a stabilizing column 307. The stabilizing column 307 is used for smoothly fixing the cylindrical shape of the embryonic cloth after the embryonic cloth in the inflated state is driven by the claw 302 to move to the stabilizing column 307.

One end of the stabilizing column 307 is fixedly connected with a coating column 308, and a plurality of coating holes 309 are formed on the coating column 308. A feed box 310 is attached to the coating column 308. The feed tank 310 is used to fill the coating column 308 with the TPU coating liquid. A solenoid valve (not shown) is disposed between the feed tank 310 and the coating column 308 for electromagnetically controlling whether the feed tank 310 fills the coating column 308 with the TPU coating liquid. The top of the coating post 308 is connected to each coating hole 309, and a gauze (not shown) is arranged on each coating hole 309, and is mainly used for slowing down the flow of the TPU coating liquid and reducing the useless loss of the TPU coating liquid. The gripper 302 continues to drive the gray cloth to move onto the coating column 308, the solenoid valve is opened, so that the TPU coating liquid in the feeding box 310 enters the coating column 308, and the TPU coating liquid flows out through the gauze after filling the coating column 308, so that the TPU coating liquid coats the inner layer of the gray cloth.

In addition, the gripper 302 drives the greige cloth to move in a grabbing manner, so that a certain gap exists between the greige cloth and the coating column 308 due to the existence of the gripper 302, the TPU coating liquid can be coated on the inner side of the greige cloth, and if the gripper 302 is completely abutted against the coating column, the TPU coating liquid cannot completely coat the inner layer of the greige cloth.

Preferably, the air pump 306 and the feeding box 310 are respectively provided with a first slide bar 313 and a second slide bar 314 with toothed blocks. The first slide bar 313 and the second slide bar 314 are jointly engaged with a gear 315. A rotary motor 316 is connected to the middle of the gear 315. The rotating motor 316 drives the gear 315 to rotate, so as to drive the first sliding rod 313 and the second sliding rod 314 to move in opposite directions.

The effect of the above arrangement is that when the inflation step begins, the inflation tube 305 of the air pump 306 inflates the inflatable column 303, thereby inflating the fabric on the inflatable column 303. After the inflation is completed, the motor 316 is rotated to make the inflation tube 305 leave the inflation column 303 and no longer inflate the greige cloth, and at the same time, the feeding box 310 is moved to be able to inflate the coating column 308 with the TPU coating liquid. Moreover, the inflation tube 305 no longer obstructs the movement of the fabric blank, and the feeding box 310 can prevent the fabric blank from moving continuously until the inner layer of the fabric blank is completely coated, the gear 315 rotates in the reverse direction, the inflation column 303 inflates the next cut fabric blank, and the feeding box 310 is far away from the coating column 308, so that the feeding box 310 no longer obstructs the movement of the fabric blank.

One end of the coating column 308 is connected with a drying column 311, a magnet is arranged at the joint of the drying column 311, the joint of the coating column 308 is made of a magnetic material, and the coating column 308 and the magnetic material are connected through magnetic force. One end of the drying column 311 is connected with a heating rod 312 through a bearing. The heating rod 312 heats the drying column 311 to increase the temperature. The jaws 302 drive the inner layer coated fabric to move to the drying column 311 for drying. Therefore, the inner coating of the gray cloth coated with the TPU coating on the inner layer is solidified, and the TPU coating is stably attached to the inner layer of the gray cloth.

4. Outer coating device 4

As shown in fig. 3 and 4, the overcoat device 4 includes an application roller 41. The coating pressure roller 41 does not abut against the drying column 311 in the above process. One end of the coating pressure roller 41 is connected with a driving motor 42. Two ends of the driving motor 42 are connected with driving columns 43 in a sliding way. The driving column 43 is fixedly connected with a worktable 44. The top of the driving motor 42 is connected with a second air cylinder 45. The second air cylinder 45 is used for driving the driving motor 42 to move up and down.

In the process of drying the inner layer by the drying column 311, the second cylinder 45 drives the driving motor 42 to move until the coating compression roller 41 abuts against the outer layer of the gray cloth on the drying column 311, the driving motor 42 works to drive the coating compression roller 41 to rotate, so that the drying column 311 is driven to rotate (the drying column 311 is in bearing connection with the heating rod 312). The drying column 311 dries and solidifies the inner layer of the gray cloth in the rotating process, and the outer layer of the gray cloth is coated by the coating press roller 41, so that the outer layer of the gray cloth is fully coated with the TPU coating liquid. And in the process of coating the outer layer, the TPU coating on the outer layer of the gray cloth is primarily cured due to the conduction action of temperature.

5. Recovery device 5

As shown in fig. 4 and 6, the recycling device 5 includes a fixing base 51 fixedly connected to the heating rod 312. The clamp claws 302 penetrate through two sides of the fixed seat 51 and are connected with the sliding seat 52. The jaws 302 are slidably movable on the slide mount 52. The bottom of the sliding seat 52 is connected with a third air cylinder 53. The third air cylinder 53 is used for driving the claw 302 to move left and right, so as to drive the gray cloth to move transversely.

The bottom of the heating rod 312 is connected with a heating motor 54. The heating motor 54 is used to heat the heating rod 312. One side of the heating motor 54 is connected with a cylinder four 55. The air cylinder four 55 is operated so that the magnetic force on the drying column 311 and the coating column 308 is offset and separated. The bottom of the cylinder four 55 is provided with a fixed plate 56. One side of the fixed plate 56 is connected with a cylinder five 57. The air cylinder five 57 can drive the fixing plate 56 to move up and down, thereby driving the drying column 311 to move up and down.

In the above-mentioned disclosure of the outer coating apparatus 4, the outer coating process can be performed only after the drying column 311 is separated from the coating column 308 by using the air cylinder four 55. After the outer layer of the gray cloth is coated, the TPU coating on the outer layer is primarily cured, and the TPU coating on the inner layer is stably cured. The drying column 311 is moved downwards by the action of the air cylinder five 57, so that the drying column 311 and the coating column 308 are not on the same horizontal plane. Thereafter, the gripper 302 is moved in the opposite direction, so that the gripper 302 grips the coated fabric and moves in the direction of the coating column 308 until the fabric is separated from the drying column 311.

The lower hot pressing plate 61 is arranged at the falling point position of the separated gray cloth.

6. Hot press device 6

As shown in fig. 2, the hot press device 6 includes a first hydraulic cylinder 62 disposed at one side of a lower hot press plate 61. The first hydraulic cylinder 62 can drive the lower hot pressing plate 61 with the gray cloth to move. The hot press device 6 further includes a base 63 corresponding to the lower hot press plate 61. The base 63 is provided with a hollow groove 64 in the middle. The shape of the empty groove 64 corresponds to the shape of the lower hot press plate 61. The base 63 is provided with a fixing rod 65. The fixing rod 65 is slidably connected with an upper hot press plate 66. The upper hot pressing plate 66 is connected with a second hydraulic cylinder 67. After the lower hot pressing plate 61 moves to cover the empty slot 64 under the action of the first hydraulic cylinder 62, the upper hot pressing plate 66 moves downwards under the action of the second hydraulic cylinder 67, so that the upper hot pressing plate 66 is finally tightly attached to the lower hot pressing plate 61, and the TPU coating on the outer layer of the gray cloth is further cured.

After the steps, the gray cloth is made into a finished product of the water band. The inner layer and the outer layer of the finished water band are coated with TPU coatings.

Claims

1. A TPU high-pressure water hose production process is characterized by comprising the following steps: the method comprises the following steps:

e. hot-press molding: unreeling the base cloth by using a reeling machine, controlling two ends of the base cloth in the running process of the base cloth, superposing the two ends of the base cloth, and forming the superposed part in a hot-press sealing forming machine at the temperature of 220-300 ℃; the hot press is used for arranging hot air guns on opposite sides of the cut gray cloth, external plastics are melted by the hot air guns at the temperature of 220-300 ℃, and the pressing blades are used for direct hot-press forming, namely bonding; the processing speed is 10-30m/s, and the processing speed is high; winding the finished product by a winding machine at the speed of 5-15m/s, and cooling to obtain the water band;

h. starting the coating press roller, coating the outer layer of the gray cloth with TPU coating liquid, and uniformly coating the TPU coating liquid on the surface of the gray cloth;

i. the drying column is used for primarily curing the outer coating of the gray cloth, and the curing temperature is 80 ℃; the curing time is 600s-1200s;

2. The TPU high-pressure water hose production process of claim 1, which is characterized in that: the TPU wear-resistant layer also comprises 10-15 parts of polytetrahydrofuran glycol, 1000 parts of TPU raw materials, 30-70 parts of carboxymethyl cellulose, 10-20 parts of sodium stearate and 10-15 parts of polytetrahydrofuran glycol are prepared according to the weight part ratio, and dehumidification and drying are carried out.

3. A full-automatic production facility of TPU high pressure hosepipe, characterized by: the device comprises a conveying device (1) for conveying the gray cloth, a cutting device (2) for slitting the gray cloth, an inner coating device (3) for coating a TPU layer on the inner layer of the gray cloth and heating and drying, an outer coating device (4) for coating the TPU layer on the outer layer of the gray cloth, a recovery device (5) for recovering a water hose coated with the TPU layer inside and outside, and a hot pressing device (6) for hot pressing the outer layer of the water hose;

the internal coating device (3) comprises a push rod (301), wherein clamp claws (302) are arranged on two sides of the push rod (301), one end of the push rod (301) is fixedly connected with an inflatable column (303), the inflatable column (303) is provided with a plurality of inflatable holes (304), the bottom of the inflatable column (303) is connected with an inflatable tube (305), the inflatable tube (305) is connected with an air pump (306), one end of the inflatable column (303) is fixedly connected with a stabilizing column (307), one end of the stabilizing column (307) is fixedly connected with a coating column (308), the coating column (308) is provided with a plurality of coating holes (309), the coating column (308) is connected with a feeding box (310), an electromagnetic valve is arranged between the feeding box (310) and the coating column (308), gauze is arranged on each coating hole (309) connected with the top of the coating column (308), one end of the coating column (308) is connected with a drying column (311), the drying column (311) is connected with the coating column (308) through a magnetic force effect, and one end of the drying column (311) is connected with a heating rod (312) through a bearing;

the outer coating device (4) comprises a coating compression roller (41), one end of the coating compression roller (41) is connected with a driving motor (42), the driving motor (42) is connected with a driving column (43), the driving column (43) is fixedly connected with a workbench (44), and the top of the driving motor (42) is connected with a second air cylinder (45);

the recycling device (5) comprises a fixed seat (51) fixedly connected with a heating rod (312), sliding seats (52) are connected to two sides of the fixed seat (51), a third air cylinder (53) is connected to the bottom of each sliding seat (52), a heating motor (54) is connected to the bottom of the heating rod (312), a fourth air cylinder (55) is connected to one side of each heating motor (54), a fixing plate (56) is arranged at the bottom of the fourth air cylinder (55), and a fifth air cylinder (57) is connected to one side of each fixing plate (56); the hot-pressing device (6) comprises a lower hot-pressing plate (61), the lower hot-pressing plate (61) is connected with a first hydraulic cylinder (62), the lower hot-pressing plate (61) corresponds to a base (63), an empty groove (64) is formed in the middle of the base (63), a fixing rod (65) is arranged on the base (63), an upper hot-pressing plate (66) is connected to the fixing rod (65) in a sliding mode, and the upper hot-pressing plate (66) is connected with a second hydraulic cylinder (67).

4. The full-automatic production equipment for the TPU high-pressure water band according to claim 3, which is characterized in that: cutting device (2) include cutting bed (21), be provided with grooving (22) on cutting bed (21), grooving (22) middle part both sides are provided with mounting bracket (23), mounting bracket (23) middle part fixedly connected with cylinder (24), cylinder (24) are connected with cutter (25), slide at cutter (25) both ends and be connected with sliding frame (26), sliding frame (26) and cutting bed (21) fixed connection.

5. The full-automatic production equipment for the TPU high-pressure water band according to claim 3, which is characterized in that: the air pump (306) and the feeding box (310) are respectively provided with a first sliding rod (313) and a second sliding rod (314) with tooth blocks, the first sliding rod (313) and the second sliding rod (314) are jointly meshed with a gear (315), and the middle part of the gear (315) is connected with a rotating motor (316).