CN109435290B

CN109435290B - Drip irrigation pipe with pressure compensation function, processing equipment and processing method thereof

Info

Publication number: CN109435290B
Application number: CN201811290125.7A
Authority: CN
Inventors: 纪晶; 李胜多; 胡彩旗; 黄素真; 武云霞
Original assignee: Qingdao Agricultural University
Current assignee: Qingdao Agricultural University
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-07-10
Anticipated expiration: 2038-10-31
Also published as: CN109435290A

Abstract

The invention discloses a drip irrigation pipe with a pressure compensation function, processing equipment and a processing method thereof. The drip irrigation pipe comprises an anti-aging belt layer and an elastic belt layer, wherein an energy dissipation groove, a first water outlet groove and a pressure adjusting groove are formed in the inner surface of the anti-aging belt layer, the elastic belt layer is attached to the inner surface of the anti-aging belt layer to form a pipe belt, an energy dissipation flow channel is formed between the energy dissipation groove and the elastic belt layer, a first water outlet flow channel is formed between the first water outlet groove and the elastic belt layer, a pressure adjusting cavity is formed between the pressure adjusting groove and the elastic belt layer, a water inlet area is formed in the part, opposite to the pressure adjusting groove, of the elastic belt layer, and a plurality of water inlet; the side part of the pipe belt with the water outlet is a first connecting part, the other side part of the pipe belt is a second connecting part, and the first connecting part is lapped outside the second connecting part. The use reliability and the service life of the drip irrigation pipe with the pressure compensation function are improved.

Description

Drip irrigation pipe with pressure compensation function, processing equipment and processing method thereof

Technical Field

The invention relates to the technical field of drip irrigation pipes, in particular to a drip irrigation pipe with a pressure compensation function, processing equipment and a processing method thereof.

Background

At present, the agricultural planting and drip irrigation technology is the trend of the development of green and environment-friendly agriculture at present. Drip irrigation pipes are generally laid on the ground surface and generally comprise a water pipe and a dripper, wherein the dripper is arranged on the inner pipe wall of the water pipe, a turbulent flow channel is formed between the dripper and the water pipe, and water in the water pipe is discharged from a water outlet of the water pipe through the turbulent flow channel. Wherein, the wall thickness of drip irrigation pipe water pipe is an important index that influences the drip irrigation zone life-span, inlay the water dropper in the time of drip irrigation pipe among the prior art adopts the extruder to extrude the pipe usually, extrude the in-process, receive the influence of traction speed, cause water pipe wall thickness inhomogeneous easily, influence life, and simultaneously, inlay on the interior pipe wall of water pipe in the water dropper, when using, the turbulent flow passageway that forms on the water dropper is blockked up by silt easily and leads to this water dropper to become invalid, the crops of corresponding department can't obtain sufficient water supply and influence the growth, lead to drip irrigation pipe's use reliability lower. The invention aims to solve the technical problem of how to design a water supply pipe with long service life and high use reliability.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the drip irrigation pipe with the pressure compensation function, the processing equipment and the processing method thereof are provided, so that the use reliability of the drip irrigation pipe with the pressure compensation function is improved, and the service life of the drip irrigation pipe is prolonged.

The technical scheme provided by the invention is as follows: the drip irrigation pipe with the pressure compensation function is characterized by comprising an anti-aging belt layer and an elastic belt layer, wherein a first energy dissipation groove in a snake-shaped structure is formed in the inner surface of a first side part of the anti-aging belt layer, a plurality of first water outlet grooves communicated with the first energy dissipation groove are further formed in the edge of the inner surface of the first side part, and a plurality of pressure adjusting grooves communicated with the first energy dissipation groove are further formed in the inner surface of the first side part; the outer surface of the second side part of the anti-aging belt layer is provided with a second energy dissipation groove in a snake-shaped structure, the outer surface of the second side part is also provided with a plurality of water inlet grooves communicated with the second energy dissipation groove, and a plurality of water inlet micropores penetrating through the anti-aging belt layer are formed in the water inlet grooves; the first side portion is overlapped outside the second side portion, and the elastic belt layer is connected between the first side portion and the second side portion; the first energy dissipation groove and the second energy dissipation groove are overlapped together, the pressure adjusting groove and the water inlet groove are overlapped together, a first energy dissipation flow channel is formed between the first energy dissipation groove and the elastic belt layer, a second energy dissipation flow channel is formed between the second energy dissipation groove and the elastic belt layer, a pressure adjusting cavity is formed between the pressure adjusting groove and the elastic belt layer, a water inlet cavity is formed between the water inlet groove and the elastic belt layer, a first water outlet flow channel is formed between the first water outlet groove and the elastic belt layer, and the elastic belt layer is provided with a through hole for communicating the water inlet cavity and the pressure adjusting cavity.

Further, the through hole comprises a plurality of water through micropores arranged in an array.

Furthermore, a stop block is arranged in the first water outlet groove, and a water outlet gap is formed between the stop block and two side walls of the first water outlet groove.

Further, the stop block is positioned at the water outlet.

Furthermore, the two side walls of the stop block are inclined surfaces, and the distance between the inclined surfaces and the corresponding side walls of the first water outlet groove is gradually reduced along the water outlet direction of the first water outlet flow channel.

Furthermore, the outer surface of the second side portion is further provided with a plurality of second water outlet grooves communicated with the second energy dissipation grooves, the first water outlet grooves and the second water outlet grooves are arranged in a staggered and side-by-side mode, a second water outlet flow channel is formed between the second water outlet grooves and the elastic belt layer, and the free end portions of the second water outlet grooves are located on the outer side of the first side portion.

The invention also provides a processing device for processing the drip irrigation pipe with the pressure compensation function, which is characterized by comprising a first storage drum, a second storage drum, a hot-press forming assembly, a first puncher, a second puncher, a laser hot-welding machine and a rolling forming assembly; the first storage drum is used for storing the anti-aging belt layers to be processed, and the second storage drum is used for storing the elastic belt layers to be processed; the discharging side of the first storage drum is provided with two hot-press forming assemblies which are sequentially arranged, each hot-press forming assembly comprises a supporting roller and a first hot-press roller, a hot-press forming space is formed between each supporting roller and each first hot-press roller, the first hot-press roller of one hot-press forming assembly is positioned above the corresponding supporting roller and is provided with a first protruding structure which is used for forming a first energy dissipation groove, a first water outlet groove and a pressure adjusting groove on the inner surface of the anti-aging belt layer through hot pressing, and the first hot-press roller of the other hot-press forming assembly is positioned below the corresponding supporting roller and is provided with a second protruding structure which is used for forming a second energy dissipation groove, a water inlet groove and a second water outlet groove on the outer surface of the anti-aging belt layer through hot pressing; the first puncher is positioned on the discharge side of the hot press forming assembly and used for punching in the water inlet groove, and the second puncher is positioned on the discharge side of the second storage roll and used for punching the elastic belt layer; the laser heat welding machine is positioned at the discharge sides of the first perforating machine and the second perforating machine and is used for welding the inner surfaces of the first side parts of the elastic belt layer and the anti-aging belt layer together to form a pipe belt; roll up system shaping subassembly including the toper guide cylinder that arranges in proper order, roll up system module and second hot press roll, the guide way has been seted up to the lateral wall of toper guide cylinder, it includes design template and supporting mandrel to roll up the system module, the design template is connected the preceding tip duplex winding of supporting mandrel the supporting mandrel is crooked, the design template with form first design passageway between the supporting mandrel, the both sides portion of design template forms the overlap region, and, the design template is in form second design passageway in the overlap region, the second hot press roll is located the back tip of supporting mandrel is used for right the partial hot press that pipe area both sides portion overlaps is glued together.

Furthermore, the rolling device further comprises a cooling water tank and a winding drum, wherein the cooling water tank and the winding drum are sequentially arranged on the discharge side of the rolling forming assembly.

The invention also provides a processing method of the drip irrigation pipe with the pressure compensation function, which adopts the processing equipment of the drip irrigation pipe with the pressure compensation function; the processing method comprises the following steps:

the method comprises a belt layer preprocessing procedure, wherein an anti-aging belt layer output by a first storage drum is heated and rolled by a hot press forming assembly to form a first energy dissipation groove, a first water outlet groove, a pressure adjusting groove, a second energy dissipation groove, a water inlet groove and a second water outlet groove on the anti-aging belt layer; the anti-aging belt layer is processed by a first perforating machine to form water inlet micropores in the water inlet groove, and the elastic belt layer output by the second storage drum is processed by a second perforating machine to form through holes in the elastic belt layer;

a pipe belt forming procedure, wherein the anti-aging belt layer and the elastic belt layer are welded together by a laser hot welding machine to form a pipe belt;

and a rolling forming process, namely, the pipe belt enters a rolling module to be rolled, and then the overlapped part formed by the pipe belt after being rolled is subjected to hot-pressing gluing treatment by a second hot-pressing roller.

Compared with the prior art, the invention has the advantages and positive effects that: according to the drip irrigation pipe with the pressure compensation function, the anti-aging belt layer is used as the outer pipe wall of the drip irrigation pipe, the anti-aging belt layer can ensure uniform thickness and is made of anti-aging materials, the service life of the drip irrigation pipe is effectively prolonged, meanwhile, the elastic belt layer and the grooves in the anti-aging belt layer form the energy dissipation flow channel, the energy dissipation flow channel is integrally in a snake-shaped structure to replace a turbulent flow channel in a dripper, the energy dissipation flow channel is communicated with the corresponding first water outlet flow channel, deposition of blocking objects cannot be formed, the anti-blocking capability is improved, the problem that the internal-embedded dripper cannot normally supply water at the position corresponding to the dripper due to blockage of the turbulent flow channel is solved, the use reliability of the drip irrigation pipe with the pressure compensation function is improved, and the service life of the drip. And the pressure adjustment cavity that pressure adjustment recess and elastic band layer formed, when the water pressure takes place the sudden change, elastic band layer can warp under the water pressure effect in order to cushion the water pressure sudden change realization pressure's automatic compensation. The water inlet micropores are designed to be micropores, so that the energy dissipation function is realized, and the filtering function is also realized; in addition, the stop block arranged in the first water outlet groove has the function of flow limiting so as to realize drip irrigation, and meanwhile, under the action of no water pressure, the stop block can close the first water outlet flow channel so as to improve the anti-blocking performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a drip irrigation pipe with pressure compensation function according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic structural view of an anti-aging tape layer in the drip irrigation pipe with pressure compensation function according to the present invention;

FIG. 5 is a schematic structural view of an elastic band layer in the drip irrigation pipe with pressure compensation function according to the present invention;

fig. 6 is a schematic structural view of the processing equipment for the drip irrigation pipe with the pressure compensation function of the invention;

fig. 7 is a schematic structural view of a first hot-pressing roll in the drip irrigation pipe processing equipment with the pressure compensation function according to the invention;

FIG. 8 is a schematic structural diagram of a rolling module in the processing equipment for drip irrigation pipes with pressure compensation function according to the present invention;

fig. 9 is a schematic structural view of a tapered guide cylinder in the processing equipment for a drip irrigation pipe with a pressure compensation function according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the drip irrigation pipe with the pressure compensation function of the embodiment includes an anti-aging belt layer 1 and an elastic belt layer 2, wherein a first energy dissipation groove 11 is formed on an inner surface of a first side portion of the anti-aging belt layer 1, a plurality of first water outlet grooves 12 communicated with the first energy dissipation groove 11 are formed on an edge of the inner surface of the first side portion, a plurality of pressure adjustment grooves 14 communicated with the first energy dissipation groove 11 are further formed on the inner surface of the first side portion, a second energy dissipation groove 11 'having a serpentine structure is formed on an outer surface of a second side portion of the anti-aging belt layer 1, a plurality of water inlet grooves 12' communicated with the second energy dissipation groove 11 'are further formed on the outer surface of the second side portion, and a plurality of water inlet micropores 13' penetrating through the anti-aging belt layer 1 are formed in the water inlet; said first side portion being superposed on the outside of said second side portion, said elastic belt layer 2 being further connected between said first side portion and said second side portion; the first energy dissipation groove 11 overlaps with the second energy dissipation groove 11 ', the pressure regulation groove 14 overlaps with the water inlet groove 12', a first energy dissipation channel (not shown) is formed between the first energy dissipation groove 11 and the elastic band layer 2, a second energy dissipation channel (not shown) is formed between the second energy dissipation groove 11' and the elastic belt layer 2, a pressure regulating cavity 101 is formed between the pressure regulating groove 14 and the elastic belt layer 2, a water inlet cavity 101 'is formed between the water inlet groove 12' and the elastic band layer 2, a first water outlet flow channel 102 is formed between the first water outlet groove 12 and the elastic band layer 2, the elastic belt layer 2 is provided with a through hole 20 communicating the water inlet cavity 101' with the pressure regulating cavity 101, and the through hole 20 comprises a plurality of water through micropores 21 arranged in an array.

Specifically, the drip irrigation pipe with the pressure compensation function in this embodiment is processed in a rolling manner, wherein a side portion of the anti-aging belt layer 1 is provided with the elastic belt layer 2 and then is rolled, so that two side portions of the anti-aging belt layer 1 are overlapped and stacked together, the elastic belt layer 2 is located between the first side portion and the second side portion, two side portions of the anti-aging belt layer 1 are correspondingly provided with groove structures, the groove structures are matched with the elastic belt layer 2 to form a corresponding water inlet cavity 101', the pressure regulation cavity 101, the first energy dissipation flow channel, the second energy dissipation flow channel and the first water outlet flow channel 102, the outer wall of the pipe adopts the anti-aging belt layer 1, the anti-aging belt layer 1 can be made of anti-aging materials such as PVC waterproof coiled materials, the elastic belt layer 2 can adopt elastic films such as TPU films, and in a processing process, the first energy dissipation groove 11, the second energy dissipation groove 102, and, The outer surface of the second side part of the anti-aging belt layer 1 is provided with a second energy dissipation groove 11 'and a water inlet groove 12', the water inlet groove 12 'is provided with a water inlet micropore 13', the elastic belt layer 2 is arranged on the inner surface of the first side part firstly, and the first side part and the second side part are overlapped and stacked together to form the drip irrigation pipe after rolling treatment. In actual use, after water is supplied to the drip irrigation pipe, the water enters the water inlet cavity 101 'through the water inlet micropores 13', the water entering the water inlet cavity 101 'can flow in the second energy dissipation flow channel to reduce the flow rate, the water in the water inlet cavity 101' enters the pressure adjusting cavity 101 through the through hole 20, the water in the pressure adjusting cavity 101 is output from the first water outlet flow channels 102 through the first energy dissipation flow channels to realize drip irrigation, and the outer pipe wall of the drip irrigation pipe is made of the anti-aging belt layer 1, so that the uniform thickness of the whole drip irrigation pipe can be ensured, the anti-aging belt layer 1 has strong anti-aging performance, and the drip irrigation pipe is exposed to the sun or buried in a soil layer for a long time, and has long service life; each first water outlet flow passage 102 is respectively communicated with the same first energy dissipation flow passage, the whole first energy dissipation flow passage is of a snake-shaped structure, better anti-blocking performance is achieved under the condition of meeting energy dissipation and speed reduction, even if the water inlet micropores 13' or the through holes 20 at a certain position are blocked, normal drip irrigation of each first water outlet flow passage 102 cannot be influenced, and use reliability is improved. Compared with a labyrinth turbulent flow groove, the energy dissipation groove of the snake-shaped structure has the advantages that the processing difficulty is reduced, and the forming precision is higher. In addition, the elastic belt layer 2 is arranged between the pressure adjusting groove 14 and the water inlet groove 12', a pressure adjusting cavity 101 formed by the elastic belt layer 2 and the pressure adjusting groove 14 can buffer water pressure change to realize pressure automatic compensation, specifically, when the water flow pressure is moderate and the water flow is stable, the whole elastic belt layer 2 is sunken towards the direction of the pressure adjusting groove 14, the diameter of each water through micropore 21 is slightly changed due to the deformation of the elastic belt layer 2, wherein the closer to the sunken central part, the larger the diameter change of the orifices at the two ends of the water through micropore 21 is, the water outlet direction of the water through micropore 21 is in a horn mouth structure, and the small end of the cone hole can realize secondary filtering effect on the irrigation water while conveying the irrigation water; when the water pressure increases, the concave amplitude of the elastic band layer 2 towards the pressure regulating cavity 101 increases, and the volume of the pressure regulating cavity 101 and the size of each water through micropore 21 are changed, so that the inlet flow entering the pressure regulating cavity 101 and the outlet flow flowing out of the pressure regulating cavity 101 are influenced, and the automatic regulation of the pressure is realized. The specific analysis is as follows: the flow and pressure in the pressure regulating chamber 101 are automatically adjusted when the pressure is increased: at the moment, the concave amplitude of the elastic belt layer 2 is increased, so that the volume of the pressure adjusting cavity 101 is reduced, the pressure intensity in the pressure adjusting cavity 101 is increased, and the water flow in the pipeline is inhibited from entering; the size change of each water through micropore 21 on the elastic band layer 2 is obvious, the closer to the central position, the smaller the inlet size of the water through micropore 21 is, the flow of the orifice is further limited, the water flow entering the pressure adjusting cavity 101 is reduced, and in sum, the reduction of the water inlet flow and the pressure realize the automatic compensation of the inlet pressure. The elastic band layer 2 can prevent the belt explosion phenomenon caused by water pressure fluctuation in the drip irrigation pipe, the anti-aging band layer 1 matched with the outside can prevent ultraviolet rays and prevent aging, and the service life of the drip irrigation pipe is greatly prolonged by double-layer rolling forming.

Still further, based on the above technical solution, the first energy dissipation flow channel and the second energy dissipation flow channel cooperate with the first water outlet flow channel 102 to realize double-flow single water outlet, and are applied to crops with small and uniform water demand, so as to realize infiltration drip irrigation, and when the irrigation requirement with large water demand is met, the outer surface of the second side portion is further provided with a plurality of second water outlet grooves 14 'communicated with the second energy dissipation grooves 11', the first water outlet grooves 12 and the second water outlet grooves 14 'are arranged in a staggered and side-by-side manner, the second water outlet flow channel 102' is formed between the second water outlet grooves 14 'and the elastic band layer 2, and the free end portion of the second water outlet groove 14' is located at the outer side of the first side portion. Specifically, a plurality of second water outlet grooves 14 ' connected with the second energy dissipation grooves 11 ' are formed on the outer surface of the second side portion, and a second water outlet flow channel 102 ' is formed between the second water outlet grooves 14 ' and the elastic belt layer 2, and since the free end portion of the second water outlet grooves 14 ' is not covered by the first side portion and is exposed outside, the exposed portion of the second water outlet grooves 14 ' forms a water outlet of the second water outlet flow channel 102 ', so that the second energy dissipation flow channel and the second water outlet flow channel 102 ' form an independent water flow channel and can supply water outwards, the water yield of the second water outlet flow channel 102 ' is large to realize drip irrigation, the water yield of the first water outlet flow channel 102 is small to realize infiltration irrigation, the two water outlet flow channels simultaneously flow out, and the water outlet device is suitable for outdoor drip irrigation or meets the requirement of large water amount.

Still further, in order to improve the anti-blocking performance of the water outlet 103 in the first water outlet channel 102, a stopper 13 is disposed in the first water outlet groove 12, a water outlet gap is formed between the stopper 13 and two side walls of the first water outlet groove 12, specifically, the stopper 13 is disposed to form the water outlet gap to limit the flow rate of the first water outlet channel 102 so as to implement drip irrigation, so that the overall size of the first water outlet groove 12 can be properly increased, and thus, in the actual use process, the water outlet 103 is prevented from being blocked by external silt. Wherein, dog 13 is located delivery port 103 department, inside dog 13 can also ensure that external dust particle, plant roots etc. can't invade to first outlet flow channel 102 from delivery port 103, more be favorable to improving anti-blocking performance, ensure that first outlet flow channel 102 does not bet the stopper. Preferably, two side walls of the stopper 13 are inclined surfaces, and a distance between each inclined surface and a corresponding side wall of the first water outlet groove 12 is gradually reduced along the water outlet direction of the first water outlet flow channel 102. Specifically, the water in the first water outlet flow channel 102 flows out through the water outlet gap between the inclined surface and the first water outlet groove 12 in the outward flowing process, and the water outlet gap is gradually reduced along the water flow direction to better realize the function of limiting the water outlet flow, wherein the cross section of the stopper 13 can be triangular or trapezoidal, and the two side portions of the stopper 13 are flexible structures, that is, the position of the inclined surface close to the water outlet 103 is flexible, so that the two side edges of the outer end of the stopper 13 can be attached to the corresponding side walls of the first water outlet groove 12, in the drip irrigation process, the side portion of the outer end of the stopper 13 is bent and deformed under the water pressure effect to realize drip irrigation, and when the stopper is not used, the side portion of the outer end of the stopper 13 is reset and is attached to the corresponding side wall of the first water outlet groove 12, so that the water outlet 103 is completely closed under the non-use state, and the anti. And a stop block can be arranged in the second water outlet channel 102' to improve the anti-blocking performance.

Furthermore, in order to improve the anti-blocking performance of the energy dissipation flow channel, the through hole 20 comprises a plurality of water inlet micropores which are distributed in an array manner to form the through hole 20, and the diameters of the water inlet micropores 13' and the water through micropores 21 are 0.5 mm-1 mm, so that the water flow speed entering the energy dissipation flow channel can be reduced, and the plurality of micropores play a role of a filter screen to reduce impurities entering the energy dissipation flow channel.

As shown in fig. 6-9, the present invention further provides a processing apparatus for processing the drip irrigation pipe with pressure compensation function, which comprises a first storage roll 201, a second storage roll 202, a thermoforming assembly 203, a first puncher 2041, a second puncher 2042, a lasermolding machine 205, and a rolling forming assembly 206; the first storage drum 201 is used for storing an anti-aging belt layer to be processed, and the second storage drum 202 is used for storing an elastic belt layer to be processed;

two hot press forming assemblies 203 which are sequentially arranged are arranged on the discharge side of the first storage drum 201, each hot press forming assembly 203 comprises a supporting roller 2032 and a first hot press roller 2031, a hot press forming space is formed between each supporting roller 2032 and each first hot press roller 2031, the first hot press roller 2031 of one hot press forming assembly 203 is located above the corresponding supporting roller 2032 and is provided with a first protrusion structure 20311 which is used for hot pressing the inner surface of the anti-aging belt layer to form a first energy dissipation groove, a first water outlet groove and a pressure adjusting groove, and the first hot press roller 1 of the other hot press forming assembly 203 is located below the corresponding supporting roller 2032 and is provided with a second protrusion structure 203 (not shown) which is used for hot pressing the outer surface of the anti-aging belt layer to form a second energy dissipation groove, a water inlet groove and a second water outlet groove;

a first punch 2041 located on the discharge side of the thermoforming assembly 203 for punching holes in the water inlet recess, and a second punch 2042 located on the discharge side of the second storage roll 202 for punching holes in the elastic band layer;

the lasermark welder 205 is located at the discharge side of the first and

second punches

2041 and 2042 and is used to weld the punched elastic band layer and the inner surface of the first side of the anti-aging band layer together to form a tube band; the rolling forming assembly 206 comprises a tapered guide cylinder 2063, a rolling module 2061 and a second hot pressing roller 2062, which are sequentially arranged, a guide groove 20631 is formed in the side wall of the tapered guide cylinder 2063, the rolling module 2061 comprises a shaping template 20611 and a support mandrel 20612, the shaping template 20611 is connected to the front end of the support mandrel 20612 and bends around the support mandrel 20612, a first shaping channel M is formed between the shaping template 20611 and the support mandrel 20612, an overlapping area is formed on two sides of the shaping template 20611, the shaping template 20611 forms a second shaping channel N in the overlapping area, the feeding side of the tapered guide cylinder 2063 is a wide cylinder opening, the discharging side of the tapered guide cylinder 2063 is a narrow cylinder opening, the tapered guide cylinder 2063 is used for guiding and gathering the welded pipe belts to enter the first shaping channel M and the second shaping channel N of the rolling module 2061, the second heat-pressing roller 2062 is located at the rear end of the support mandrel 20611 and is used for heat-pressing and gluing the overlapped parts of the two side parts of the tube band.

Specifically, the specific processing method of the processing equipment for the drip irrigation pipe with the pressure compensation function comprises the following steps:

a belt layer preprocessing procedure, wherein two sides of the anti-aging belt layer output by the first storage drum 201 are respectively heated and rolled by corresponding hot-press forming assemblies to form a first energy dissipation groove, a first water outlet groove, a pressure adjusting groove, a second energy dissipation groove, a water inlet groove and a second water outlet groove on the anti-aging belt layer; the anti-aging belt layer is processed by a first puncher 2041 to form water inlet micropores in the water inlet groove, and the elastic belt layer output from the second storage drum 202 is processed by a second puncher 2042 to form through holes in the elastic belt layer. Specifically, after the anti-aging belt layer output by the first storage drum 201 is subjected to hot-press type processing by the corresponding first hot-press roller 2031, the inner surface or the outer surface of the corresponding side of the anti-aging belt layer with the convex structure is heated and rolled to form a corresponding groove structure, meanwhile, the first punching machine 2041 punches holes in the water inlet groove to form water inlet micropores, and the second punching machine 2042 punches the elastic belt layer output by the second storage drum 202 to form through holes.

And a pipe band forming process, wherein the inner surface of the first side part of the anti-aging band layer and the elastic band layer are welded together by a laser hot welding machine 205 to form a pipe band. Specifically, the anti-aging belt layer and the elastic belt layer processed by the belt layer preprocessing process are guided by guide wheels to be attached together and enter a welding processing area of the laser thermal welding machine 205, the laser thermal welding machine 205 welds the anti-aging belt layer and the elastic belt layer together to form a pipe belt, preferably, the laser thermal welding machine 205 forms a welding seam around the anti-aging belt layer and the elastic belt layer, and simultaneously forms a welding seam along the outer sides of the first energy dissipation groove, the first water outlet groove and the pressure adjusting groove.

In the rolling and forming process, the tube strip enters the rolling module 2061 to be rolled, and then the overlapped part of the tube strip after being rolled is hot-pressed and glued by the second hot-pressing roller 2062. Specifically, the pipe strip formed after the pipe strip forming process enters the rolling module 2061 through the guide wheel, the pipe strip is shaped through the first shaping channel and the second shaping channel, so that the pipe strip is rolled, the two side portions of the pipe strip are overlapped together, the pipe strip after the rolling treatment is output from the shaping channel and then is heated through the second hot pressing roller 2062, the overlapped portions of the pipe strip are extruded on the supporting mandrel 20612 for transmission through the second hot pressing roller 2062, and the overlapped portions are heated to achieve hot pressing gluing treatment, so that the rolling processing of the drip irrigation pipe is finally completed. The heating method for the first hot-pressing roller 2031 and the second hot-pressing roller 2062 may be a heating method for a hot-pressing roller in the related art, such as an electric heating wire. Preferably, in order to avoid that the grooves on the corresponding overlapped edges are heated and deformed to be blocked due to overhigh temperature and pressure during the hot-press gluing process, a glue spreader 2051 for spreading glue to one side of the tube strip is further arranged between the laser hot welding machine 205 and the rolling forming assembly 206, specifically, before the rolling forming process, the laser hot welding machine 205 welds the anti-aging belt layer and the elastic belt layer together to form the tube strip, then the glue spreader 2051 spreads glue to one side of the tube strip, and the glued tube strip enters the rolling forming assembly 206 to be rolled and formed. After the pipe belt is guided by the conical guide cylinder 2063 and is rolled by the rolling module 2061, when the hot pressing treatment is carried out by the hot pressing roller, the overlapped parts of the pipe belt can be heated and pressed firmly by matching with the glue coating layer on the pipe belt, and the hot pressing gluing treatment is finished; thus, the temperature of the hot-pressing roller in the roll forming assembly 206 and the pressure applied to the tube strip can be correspondingly reduced, and the groove on the overlapped edge of the tube strip is prevented from being blocked due to heating deformation.

Further, the processing equipment for the drip irrigation pipe with the pressure compensation function further comprises a cooling water tank 207 and a winding drum 208, wherein the cooling water tank 207 and the winding drum 208 are sequentially arranged on the discharge side of the roll forming assembly 206, and specifically, the drip irrigation pipe which is output from the roll forming assembly 206 and is rolled and formed is cooled and shaped after the temperature of the drip irrigation pipe is higher and enters the cooling water tank 207, and then the drip irrigation pipe is collected through the winding drum 208.

Compared with the prior art, the invention has the advantages and positive effects that: the drip irrigation pipe with the pressure compensation function, the processing equipment and the processing method thereof provided by the invention have the advantages that the anti-aging belt layer is adopted as the outer pipe wall of the drip irrigation pipe, the anti-aging belt layer can ensure uniform and consistent thickness and is made of anti-aging materials, the service life of the drip irrigation pipe is effectively prolonged, simultaneously, the elastic belt layer and the groove on the ageing resistance belt layer form an energy dissipation flow channel and a first water outlet flow channel, the energy dissipation flow channel is integrally of a snake-shaped structure to replace a turbulent flow channel in the dripper, the energy dissipation flow channel is communicated with the first water outlet flow channels, the siltation of a blockage can not be formed, the anti-blocking capacity is improved, the through energy dissipation flow channel is easy to quickly balance the pressure in the flow channel, the problem that the dripper cannot normally supply water at the corresponding position of the dripper due to the blockage of the turbulent flow channel by adopting the embedded dripper is solved, the use reliability of the drip irrigation pipe with the pressure compensation function is improved, and the service life of the drip. The water inlet micropores are designed to be micropores, so that the energy dissipation function is realized, and the filtering function is also realized; in addition, the stop block arranged in the first water outlet groove has the function of flow limiting so as to realize drip irrigation, and meanwhile, under the action of no water pressure, the stop block can close the first water outlet flow channel so as to improve the anti-blocking performance.

Claims

1. A drip irrigation pipe with a pressure compensation function is characterized by comprising an anti-aging belt layer and an elastic belt layer;

the inner surface of the first side part of the anti-aging belt layer is provided with a first energy dissipation groove in a snake-shaped structure, the edge of the inner surface of the first side part is also provided with a plurality of first water outlet grooves communicated with the first energy dissipation groove, and the inner surface of the first side part is also provided with a plurality of pressure adjusting grooves communicated with the first energy dissipation groove;

the outer surface of the second side part of the anti-aging belt layer is provided with a second energy dissipation groove in a snake-shaped structure, the outer surface of the second side part is also provided with a plurality of water inlet grooves communicated with the second energy dissipation groove, and a plurality of water inlet micropores penetrating through the anti-aging belt layer are formed in the water inlet grooves;

the first side portion is overlapped outside the second side portion, and the elastic belt layer is connected between the first side portion and the second side portion;

the first energy dissipation groove and the second energy dissipation groove are overlapped together, the pressure adjusting groove and the water inlet groove are overlapped together, a first energy dissipation flow channel is formed between the first energy dissipation groove and the elastic belt layer, a second energy dissipation flow channel is formed between the second energy dissipation groove and the elastic belt layer, a pressure adjusting cavity is formed between the pressure adjusting groove and the elastic belt layer, a water inlet cavity is formed between the water inlet groove and the elastic belt layer, a first water outlet flow channel is formed between the first water outlet groove and the elastic belt layer, and the elastic belt layer is provided with a through hole for communicating the water inlet cavity and the pressure adjusting cavity.

2. The drip irrigation pipe with the pressure compensation function according to claim 1, wherein said through-holes comprise a plurality of water passing micro-holes arranged in an array.

3. The drip irrigation pipe with the pressure compensation function according to claim 1, wherein a stopper is disposed in the first water outlet groove, and a water outlet gap is formed between the stopper and two sidewalls of the first water outlet groove.

4. The drip irrigation pipe with the pressure compensation function according to claim 3, wherein the stopper is located at a water outlet in the first water outlet flow passage.

5. The drip irrigation pipe with the pressure compensation function according to claim 3, wherein the two side walls of the stopper are inclined surfaces, and the distance between the inclined surfaces and the corresponding side walls of the first water outlet groove gradually decreases along the water outlet direction of the first water outlet flow channel.

6. The drip irrigation pipe with the pressure compensation function according to any one of claims 1 to 5, wherein the outer surface of the second side portion is further provided with a plurality of second water outlet grooves communicated with the second energy dissipation grooves, the first water outlet grooves and the second water outlet grooves are arranged in a staggered and side-by-side manner, a second water outlet flow channel is formed between the second water outlet grooves and the elastic belt layer, and the free end portions of the second water outlet grooves are located on the outer side of the first side portion.

7. A processing device for processing the drip irrigation pipe with the pressure compensation function according to any one of claims 1 to 6, which comprises a first storage drum, a second storage drum, a hot-press forming component, a first hole puncher, a second hole puncher, a laser hot welding machine and a roll forming component; the first storage drum is used for storing the anti-aging belt layers to be processed, and the second storage drum is used for storing the elastic belt layers to be processed;

the discharging side of the first storage drum is provided with two hot-press forming assemblies which are sequentially arranged, each hot-press forming assembly comprises a supporting roller and a first hot-press roller, a hot-press forming space is formed between each supporting roller and each first hot-press roller, the first hot-press roller of one hot-press forming assembly is positioned above the corresponding supporting roller and is provided with a first protruding structure which is used for forming a first energy dissipation groove, a first water outlet groove and a pressure adjusting groove on the inner surface of the anti-aging belt layer through hot pressing, and the first hot-press roller of the other hot-press forming assembly is positioned below the corresponding supporting roller and is provided with a second protruding structure which is used for forming a second energy dissipation groove, a water inlet groove and a second water outlet groove on the outer surface of the anti-aging belt layer through hot pressing;

the first puncher is positioned on the discharge side of the hot press forming assembly and used for punching in the water inlet groove, and the second puncher is positioned on the discharge side of the second storage drum and used for punching the elastic belt layer;

the laser heat welding machine is positioned at the discharge sides of the first perforating machine and the second perforating machine and is used for welding the inner surfaces of the first side parts of the elastic belt layer and the anti-aging belt layer together to form a pipe belt;

roll up system shaping subassembly including the toper guide cylinder that arranges in proper order, roll up system module and second hot press roll, the guide way has been seted up to the lateral wall of toper guide cylinder, it includes design template and supporting mandrel to roll up the system module, the design template is connected the preceding tip duplex winding of supporting mandrel the supporting mandrel is crooked, the design template with form first design passageway between the supporting mandrel, the both sides portion of design template forms the overlap region, and, the design template is in form second design passageway in the overlap region, the second hot press roll is located the back tip of supporting mandrel is used for right the partial hot press that pipe area both sides portion overlaps is glued together.

8. The apparatus for processing a drip irrigation pipe with pressure compensation function according to claim 7, further comprising a cooling water tank and a winding drum, wherein the cooling water tank and the winding drum are sequentially arranged on the discharge side of the roll forming assembly.

9. A method for manufacturing a drip irrigation pipe with a pressure compensation function according to any one of claims 1 to 6, wherein the manufacturing equipment of the drip irrigation pipe with a pressure compensation function according to any one of claims 7 to 8 is used; the processing method comprises the following steps: