CN112958923B - Laser hole making method for drip irrigation tape - Google Patents
Laser hole making method for drip irrigation tape Download PDFInfo
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- CN112958923B CN112958923B CN202110264081.6A CN202110264081A CN112958923B CN 112958923 B CN112958923 B CN 112958923B CN 202110264081 A CN202110264081 A CN 202110264081A CN 112958923 B CN112958923 B CN 112958923B
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- electromagnet
- permanent magnet
- laser
- drip irrigation
- magnet column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
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- Optics & Photonics (AREA)
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- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a method for making holes on a drip irrigation tape by laser, which realizes the accurate suspension and positioning of a permanent magnet column of a permanent magnet supporting tape operation part of a drip irrigation tape laser punching device in a permanent magnet column accommodating space by controlling the magnetic field direction of an electromagnetic positioning part of the drip irrigation tape laser punching device, after the drip irrigation tape is sleeved on the permanent magnet column of the drip irrigation tape laser punching device, the laminating or the reset motion of the permanent magnet column of the permanent magnet supporting band operation part of the drip irrigation band laser punching device is realized by changing the magnetic field direction of the electromagnetic positioning part of the drip irrigation band laser punching device, on one hand, laser can be prevented from penetrating through the laminated pipe wall of the drip irrigation band, on the other hand, accurate positioning punching of the drip irrigation band can be realized by adsorbing on an upper electromagnet or a lower electromagnet provided with a laser punching gun, and the condition that unqualified products are produced by punching the pipe wall of the lower layer can be prevented on the premise of shortening the debugging period, reducing waste and realizing stable forming of a water outlet hole.
Description
Technical Field
The invention relates to a laser hole making method, in particular to a method suitable for making a laser hole in a water outlet hole of a drip irrigation tape, and belongs to the technical field of drip irrigation equipment.
Background
Drip irrigation is a precise irrigation method, which uses a low-pressure pipeline system to directly convey water to the field, and then the water is uniformly and slowly dripped into the soil near the root zone of the crop drop by drop through a water emitter, an orifice or a drip irrigation tape arranged on a drip irrigation tape capillary, so that the soil in the most developed zone of the root system of the crop always keeps proper humidity, the water, fertilizer, air, heat and microorganism activities of the soil are always in good conditions, and favorable conditions are created for high and stable yield of the crop. Drip irrigation is the most effective water-saving irrigation mode in arid water-deficient areas at present, and the water utilization rate can reach 95%. Compared with spray irrigation, the drip irrigation has higher water-saving and yield-increasing effects, can be combined with fertilization, improves the fertilizer efficiency by more than one time, and is suitable for irrigation of fruit trees, vegetables, cash crops and greenhouses.
The drip irrigation tape is one of main equipment in a drip irrigation system, can be bent and laid around ridges, and is convenient to operate. The drip irrigation capillary in the drip irrigation zone is usually made of high-pressure polyvinyl chloride, the pipe diameter is usually 4-20 mm, the wall thickness is usually 0.1-0.6 mm, the drip irrigation capillary is a typical thin-wall plastic hose structure, water outlet holes for water outflow need to be formed in the drip irrigation capillary along the length direction of the drip irrigation capillary at uniform intervals, and the aperture of each water outlet hole is usually 0.6-1.2 mm. The existing drip irrigation tape processing equipment generally adopts an integrated forming technology, namely injection molding and punching one-step forming, the scheme of punching drip irrigation tapes by adopting laser appears in the prior art, although the laser punching has good water outlet hole forming effect, edge-warping burrs are hardly generated in the punching process, and the punching efficiency is high, but the drip irrigation tapes subjected to injection molding in the prior art are generally in a flattened laminated pipe wall state when being driven by a traction belt wheel to punch through a punching device, and the power density of laser beams needs to be adjusted by adopting a laser mode of punching from the outside of the drip irrigation tapes to the inside of the drip irrigation tapes so as to ensure that only the upper pipe walls of the laminated pipe walls are punched and the lower pipe walls of the laminated pipe walls are not punched.
The traditional drip irrigation tape laser drilling device has the following defects:
1. the upper-layer pipe wall of the laminated pipe wall is only needed to be punched in the punching operation, and the wall thickness of the drip irrigation tape is small, so that the laser punching device is difficult to adjust the proper power density of the laser beam, and the laser punching device usually needs to be repeatedly subjected to fine adjustment and punching tests for many times for producing the drip irrigation tapes with different wall thicknesses, so that the debugging period is long, and the waste of the drip irrigation tape is caused;
2. although the laser perforating device has adjusted the suitable power density of laser beam before the operation of punching, because the drip irrigation zone is in the wall thickness homogeneity problem of the production process of moulding plastics and the drip irrigation zone of range upon range of pipe wall state self elastic deformation problem in the process of punching, still can have the phenomenon that does not punch upper tube wall and form the blind hole, perhaps punch the lower floor's pipe wall, and then can make the drip irrigation zone can't drip the condition of water when driping irrigation the use, perhaps produce the condition of defective work.
Disclosure of Invention
Aiming at the problems, the invention provides a laser hole making method for a drip irrigation tape, which can prevent the situation that unqualified products are produced by punching the lower layer pipe wall on the premise of shortening the debugging period, reducing waste and realizing the stable forming of a water outlet hole.
In order to achieve the purpose, the drip irrigation tape laser drilling device used by the drip irrigation tape laser drilling method comprises an electromagnetic positioning part, a permanent magnet supporting tape operation part and an electric control part;
the electromagnetic positioning part comprises an upper electromagnet, a lower electromagnet, a left electromagnet, a right electromagnet, a front annular electromagnet and a rear annular electromagnet which are all wound with conductive winding coils; the upper electromagnet, the lower electromagnet, the left electromagnet and the right electromagnet are all of elongated structures arranged along the front-back direction, the upper electromagnet and the lower electromagnet are arranged in an up-down parallel opposite mode, the left electromagnet and the right electromagnet are arranged in an up-down parallel opposite mode, and the upper electromagnet, the lower electromagnet, the left electromagnet and the right electromagnet jointly enclose a permanent magnet column accommodating space; the front annular electromagnet and the rear annular electromagnet which are coaxially arranged are symmetrically arranged at the front end and the rear end of the permanent magnet column accommodating space in a front-back manner, and the central axes of the front annular electromagnet and the rear annular electromagnet are arranged in a collinear manner with the geometric central line of the permanent magnet column accommodating space; a laser perforating gun mounting hole which is vertically arranged is arranged in the upper electromagnet or the lower electromagnet, the laser perforating gun is fixedly arranged in the laser perforating gun mounting hole, and the bottom end of a laser emitting opening of the laser perforating gun is positioned in the laser perforating gun mounting hole;
the permanent magnet supporting band operation part comprises a permanent magnet column with a long strip-shaped structure arranged in a permanent magnet column accommodating space, the outline of the permanent magnet column is subjected to fillet treatment, the length dimension of the permanent magnet column along the front-back direction is larger than that of the upper electromagnet or the lower electromagnet, at least the rear end of the permanent magnet column is arranged into a spherical surface or a conical guide structure, the outline dimension of the spherical surface or the conical guide structure is not smaller than the outline dimension of the longitudinal section of the permanent magnet column, the upper end or the lower end of the spherical surface or the conical guide structure corresponding to the installation position of the laser perforating gun is provided with an inclined surface guide structure, an upper electromagnet or a lower electromagnet provided with the laser perforating gun is provided with an inclined surface structure in inclined fit with the inclined surface guide structure of the spherical surface or the conical guide structure, a permanent magnet column is provided with a working plane matched with the bottom plane of the upper electromagnet and the top plane of the lower electromagnet, and the working plane comprises an upper working plane and a lower working plane which are symmetrically arranged in parallel up and down;
the electric control part comprises a controller, an electromagnetic field control loop and a laser drilling control loop, wherein the controller is respectively electrically connected with conductive winding coils of the upper electromagnet, the lower electromagnet, the left electromagnet, the right electromagnet, the front annular electromagnet and the rear annular electromagnet, and the controller is electrically connected with the laser drilling gun;
after the permanent magnet column is placed in the accommodating space of the permanent magnet column, firstly operating the controller to simultaneously electrify the conductive winding coils of the upper electromagnet and the lower electromagnet, ensuring that the magnetic field direction of the electromagnetic field generated by the upper electromagnet is the same as that of the upper working plane of the permanent magnet column and the magnetic field direction of the electromagnetic field generated by the lower electromagnet is the same as that of the lower working plane of the permanent magnet column, suspending the permanent magnet column between the upper electromagnet and the lower electromagnet, penetrating the pipe end of the drip irrigation tape into the central hole of the rear annular electromagnet and then sleeving the pipe end of the drip irrigation tape on the permanent magnet column, penetrating the pipe end of the drip irrigation tape out of the central hole of the front annular electromagnet, mounting the pipe end of the drip irrigation tape on the stepping traction tape winding device, and then operating the controller to simultaneously electrify the conductive winding coils of the left electromagnet, the right electromagnet, the front annular electromagnet and the rear annular electromagnet, and ensuring that the magnetic field direction of the electromagnetic field generated by the left electromagnet is the same as that of the left side surface of the permanent magnet column, The magnetic field direction of the electromagnetic field generated by the right electromagnet is the same as the magnetic field direction of the right side surface of the permanent magnet column, the magnetic field direction of the electromagnetic field generated by the front annular electromagnet is the same as the magnetic field direction of the front end surface of the permanent magnet column, the magnetic field direction of the electromagnetic field generated by the rear annular electromagnet is the same as the magnetic field direction of the rear end surface of the permanent magnet column, and the permanent magnet column is accurately positioned in a permanent magnet column accommodating space in a suspended manner; after the stepping traction tape winding device acts to drive the drip irrigation tape to move forwards to a set distance and is positioned, the controller controls a conductive winding coil of an upper electromagnet or a lower electromagnet provided with a laser perforating gun to be electrified reversely, the direction of a magnetic field generated by the upper electromagnet or the lower electromagnet provided with the laser perforating gun is opposite to the direction of a magnetic field of a working plane of a permanent magnet column, the permanent magnet column rapidly moves towards the upper electromagnet or the lower electromagnet provided with the laser perforating gun under the action of repulsion force and adsorption force of the magnetic field and is adsorbed and attached to the upper electromagnet or the lower electromagnet provided with the laser perforating gun through the pipe wall of the drip irrigation tape, then the controller controls the laser perforating gun to emit laser to perforate the pipe wall of the drip irrigation tape pressed on the working plane of the permanent magnet column, and after the set time, the controller controls the laser perforating gun to stop emitting and complete perforation; then the controller controls the conductive winding coil of the upper electromagnet or the lower electromagnet provided with the laser perforating gun to carry out forward energization, the direction of the magnetic field of the electromagnetic field generated by the upper electromagnet or the lower electromagnet provided with the laser perforating gun is the same as the direction of the magnetic field of the working plane of the permanent magnet column, and the permanent magnet column rapidly leaves the upper electromagnet or the lower electromagnet provided with the laser perforating gun to carry out resetting action under the action of the repulsion force of the electromagnetic field, so that a perforating working flow is completed; and controlling the stepping traction tape winding device to perform stepping action and driving the drip irrigation tape to step forward for a set distance and then continuously punching.
As a further improvement scheme of the invention, a high-reflection film is arranged on the working plane of the permanent magnetic column corresponding to the position of the laser perforating gun; the laser beam is prevented from burning the working plane of the permanent magnetic pole by the high reflection film.
As a further improvement scheme of the invention, the drip irrigation belt laser punching device is also provided with a smoke treatment mechanism, the smoke treatment mechanism comprises a negative pressure adsorption pipeline and a smoke purification component comprising a negative pressure air pump, one end of the negative pressure adsorption pipeline is communicated and connected with the permanent magnet column accommodating space, the other end of the negative pressure adsorption pipeline is connected with the smoke purification component, and the smoke purification component is electrically connected with a controller of the electric control part; in the laser drilling process, the controller starts the smoke purification component at the same time, and smoke generated by laser drilling is purified through the smoke purification component.
Compared with the prior art, the drip irrigation tape laser punching device is provided with an electromagnetic positioning part comprising an upper electromagnet, a lower electromagnet, a left electromagnet, a right electromagnet, a front annular electromagnet and a rear annular electromagnet and a permanent magnet supporting tape operation part comprising a permanent magnet column, wherein the upper electromagnet, the lower electromagnet, the left electromagnet and the right electromagnet jointly enclose a permanent magnet column accommodating space, the permanent magnet column is arranged in the permanent magnet column accommodating space, so that the permanent magnet column can be accurately suspended and positioned in the permanent magnet column accommodating space by controlling the magnetic field direction of the electromagnetic positioning part, after the drip irrigation tape is sleeved on the permanent magnet column, the vertical movement of the permanent magnet column can be realized by changing the magnetic field direction of the electromagnetic positioning part, a controller controls a laser punching gun to emit laser to punch after the pipe wall of the drip irrigation tape is positioned on the upper electromagnet or the lower electromagnet provided with the laser punching gun by the permanent magnet column, the setting up of permanent magnetism post can prop up the drip irrigation zone on the one hand, prevents that laser from running through the range upon range of pipe wall of drip irrigation zone, and on the other hand can be through adsorbing the accurate location that realizes the drip irrigation zone on the last electromagnet or the lower electromagnet that install the laser perforating rifle and punch to can shorten the debugging cycle, reduce extravagantly, realize realizing preventing to punch the condition that produces the defective work with lower floor's pipe wall under the firm fashioned prerequisite of apopore.
Drawings
FIG. 1 is a schematic structural view from the back to the front of the drip irrigation tape laser perforating device of the present invention;
FIG. 2 is a right side view of the drip irrigation tape laser perforating device of the present invention with the left and right electromagnets removed from the view of FIG. 1;
fig. 3 is a sectional view a-a of fig. 2.
In the figure: 1. the high-reflectivity electromagnetic laser comprises an upper electromagnet, a lower electromagnet, a left electromagnet, a right electromagnet, a front annular electromagnet, a rear annular electromagnet, a permanent magnet column, a laser perforating gun, a high-reflectivity film and a laser perforating gun, wherein the upper electromagnet is 2, the lower electromagnet is 3, the left electromagnet is 4, the right electromagnet is 5, the front annular electromagnet is 6, the rear annular electromagnet is 7, the permanent magnet column is 8, and the high-reflectivity film is 9.
Detailed Description
The present invention will be further explained with reference to the drawings (hereinafter, the direction of the drip tape transport will be described as the front-back direction).
The drip irrigation tape laser punching device comprises an electromagnetic positioning part, a permanent magnet supporting tape operation part and an electric control part.
As shown in fig. 1 and 2, the electromagnetic positioning portion includes an upper electromagnet 1, a lower electromagnet 2, a left electromagnet 3, a right electromagnet 4, a front annular electromagnet 5, and a rear annular electromagnet 6, each of which is wound with a conductive winding coil; the upper electromagnet 1, the lower electromagnet 2, the left electromagnet 3 and the right electromagnet 4 are all of strip-shaped structures with the same length in the front-back direction, the upper electromagnet 1 and the lower electromagnet 2 are arranged in an up-down parallel opposite mode, the left electromagnet 3 and the right electromagnet 4 are arranged in an up-down parallel opposite mode, and the upper electromagnet 1, the lower electromagnet 2, the left electromagnet 3 and the right electromagnet 4 jointly enclose a permanent magnet column accommodating space; the front annular electromagnet 5 and the rear annular electromagnet 6 which are coaxially arranged are symmetrically arranged at the front end and the rear end of the permanent magnet column accommodating space in a front-back manner, and the central axes of the front annular electromagnet 5 and the rear annular electromagnet 6 are arranged in a collinear manner with the geometric central line of the permanent magnet column accommodating space; go up and be equipped with the laser perforating rifle mounting hole of vertical setting in electromagnet 1 or lower electromagnet 2, laser perforating rifle 8 fixed mounting is in the laser perforating rifle mounting hole, and the laser-beam emission mouth bottom of laser perforating rifle 8 is in the state that is located the laser perforating rifle mounting hole.
The permanent magnet supporting band operation part comprises a permanent magnet column 7 which is arranged in a permanent magnet column accommodating space and is of a long strip-shaped structure, a working plane which is matched with the bottom plane of the upper electromagnet 1 and the top plane of the lower electromagnet 2 in size is arranged on the permanent magnet column 7, and as shown in figure 3, the working plane comprises an upper working plane and a lower working plane which are symmetrically arranged in an up-and-down parallel mode.
The electric control part comprises a controller, an electromagnetic field control loop and a laser drilling control loop, the controller is respectively and electrically connected with conductive winding coils of the upper electromagnet 1, the lower electromagnet 2, the left electromagnet 3, the right electromagnet 4, the front annular electromagnet 5 and the rear annular electromagnet 6, and the controller is electrically connected with the laser drilling gun 8.
This drip irrigation zone laser perforating device can punch the operation alone to the drip irrigation pipe area finished product of lapping, also can install and punch the operation on drip irrigation pipe area integrated into one piece machine, describes this drip irrigation zone laser perforating device's theory of operation for the example on following in order to install this drip irrigation zone laser perforating device on drip irrigation pipe area integrated into one piece machine: the controller of the drip irrigation tape laser punching device is electrically connected with a central controller of the drip irrigation tape integrated forming machine, a stepping traction tape winding device is arranged at the position of the drip irrigation tape integrated forming machine, which is positioned in front of the drip irrigation tape laser punching device, after a permanent magnet column 7 is placed in a permanent magnet column accommodating space, the controller of the drip irrigation tape laser punching device is firstly controlled to simultaneously electrify conductive winding coils of an upper electromagnet 1 and a lower electromagnet 2, the magnetic field direction of an electromagnetic field generated by the upper electromagnet 1 is ensured to be the same as that of an upper working plane of the permanent magnet column 7, the magnetic field direction of an electromagnetic field generated by the lower electromagnet 2 is ensured to be the same as that of a lower working plane of the permanent magnet column 7, the permanent magnet column 7 is suspended between the upper electromagnet 1 and the lower drip irrigation electromagnet 2, a pipe end of a forming tape output by a front injection molding unit is sleeved on the permanent magnet column 7 after penetrating through a central hole of a rear annular electromagnet 6, after the pipe end of the drip irrigation tape penetrates out of a central hole of a front annular electromagnet 5, the pipe end of the drip irrigation tape is installed on a stepping traction tape winding device, a controller of the drip irrigation tape laser drilling device is controlled to enable conductive winding coils of a left electromagnet 3, a right electromagnet 4, the front annular electromagnet 5 and a rear annular electromagnet 6 to be simultaneously electrified, the direction of a magnetic field generated by the left electromagnet 3 is ensured to be the same as that of a magnetic field on the left side surface of a permanent magnet column 7, the direction of a magnetic field generated by the right electromagnet 4 is ensured to be the same as that of a magnetic field on the right side surface of the permanent magnet column 7, the direction of a magnetic field generated by the front annular electromagnet 5 is ensured to be the same as that of a magnetic field on the front end surface of the permanent magnet column 7, the direction of a magnetic field generated by the rear annular electromagnet 6 is ensured to be the same as that of a magnetic field on the rear end surface of the permanent magnet column 7, and the permanent magnet column 7 is accurately suspended and positioned in a permanent magnet column accommodating space, then the punching operation can be carried out; the central controller controls the stepping traction tape winding device to act to drive the drip irrigation tape to move forward to a set distance, then the central controller controls a controller of the drip irrigation tape laser punching device to start a laser punching control loop, the controller controls a conductive winding coil of an upper electromagnet 1 or a lower electromagnet 2 provided with a laser punching gun 8 to be electrified reversely, the direction of a magnetic field generated by the upper electromagnet 1 or the lower electromagnet 2 provided with the laser punching gun 8 is opposite to the direction of a magnetic field of a working plane of a permanent magnet column 7, the permanent magnet column 7 rapidly moves towards the upper electromagnet 1 or the lower electromagnet 2 provided with the laser punching gun 8 under the action of repulsion force and adsorption force of the electromagnetic field and adheres to the upper electromagnet 1 or the lower electromagnet 2 provided with the laser punching gun 8 through the pipe wall of the drip irrigation tape, and then the controller controls the laser punching gun 8 to emit laser, the laser perforates the pipe wall of the drip irrigation tape which is pressed on the working plane of the permanent magnet column 7, and the controller controls the laser perforating gun 8 to stop emitting after the set time, so that perforating is completed; then the controller controls the conductive winding coil of the upper electromagnet 1 or the lower electromagnet 2 provided with the laser perforating gun 8 to carry out forward energization, the magnetic field direction of an electromagnetic field generated by the upper electromagnet 1 or the lower electromagnet 2 provided with the laser perforating gun 8 is arranged in the same direction as the magnetic field direction of the working plane of the permanent magnetic column 7, the permanent magnetic column 7 rapidly leaves the upper electromagnet 1 or the lower electromagnet 2 provided with the laser perforating gun 8 to carry out reset action under the repulsion action of the electromagnetic field, a perforating work flow is completed, and the central controller controls the stepping traction tape winding device to carry out stepping action according to the feedback of the controller of the drip irrigation tape laser perforating device, drives the drip irrigation tape to step forward for a set distance and continues perforating. The upper electromagnet 1, the lower electromagnet 2, the left electromagnet 3, the right electromagnet 4, the front annular electromagnet 5 and the rear annular electromagnet 6 are arranged, so that accurate suspension positioning of the permanent magnet column 7 can be guaranteed, and accurate positioning of the drip irrigation tape in a laser drilling process can be guaranteed.
In order to avoid the burning of the working plane of the permanent magnetic column 7 caused by the laser beam, as a further improvement of the invention, a high-reflection film 9 is arranged on the working plane of the permanent magnetic column 7 at a position corresponding to the laser perforating gun 8.
As a further improvement scheme of the drip irrigation belt laser perforating device, the high temperature generated by laser in the laser perforating process can cause the drip irrigation belt to generate smoke due to sintering, and in order to reduce the air pollution degree, the drip irrigation belt laser perforating device is further provided with a smoke treatment mechanism, the smoke treatment mechanism comprises a negative pressure adsorption pipeline and a smoke purification component comprising a negative pressure air pump, one end of the negative pressure adsorption pipeline is communicated and connected with the permanent magnet column accommodating space, the other end of the negative pressure adsorption pipeline is connected with the smoke purification component, the smoke purification component can be of a water filtering structure through water filtration, a filter screen filtering structure through filter screen filtration and the like, and the smoke purification component is electrically connected with a controller of the electric control part. In the laser drilling process, the controller starts the smoke purification component at the same time, and smoke generated by laser drilling can be purified through the smoke purification component.
In order to facilitate visual observation of the laser drilling effect, as a preferred scheme of the invention, a vertically arranged laser drilling gun mounting hole is arranged in the upper electromagnet 1, and the laser drilling gun 8 is fixedly arranged in the laser drilling gun mounting hole of the upper electromagnet 1.
In order to prevent the permanent magnetic columns 7 from rubbing and damaging the inner cavity of the drip irrigation tape in the conveying process of the drip irrigation tape, as a further improvement scheme of the drip irrigation tape, the contour of the permanent magnetic columns 7 is subjected to fillet treatment; as shown in fig. 2, at least the rear end of the permanent magnet column 7 is provided with a spherical or conical guide structure.
In order to achieve a better positioning, guiding, adsorbing and punching effect, as a further improvement of the present invention, as shown in fig. 2, the length dimension of the permanent magnet column 7 in the front-back direction is greater than the length dimension of the upper electromagnet 1 or the lower electromagnet 2, and the outer dimension of the spherical or conical guide structure is not less than the outer dimension of the longitudinal section of the permanent magnet column 7, an inclined guide structure is disposed at the upper end or the lower end of the spherical or conical guide structure corresponding to the installation position of the laser punching gun 8, and an inclined structure matched with the inclination of the inclined guide structure of the spherical or conical guide structure is disposed on the upper electromagnet 1 or the lower electromagnet 2 on which the laser punching gun 8 is installed. So set up, can adsorb the laminating in-process and carry out accurate positioning direction to permanent magnetism post 7 to can guarantee the accuracy of the position of punching.
The laser punching device for the drip irrigation tape is provided with an electromagnetic positioning part comprising an upper electromagnet 1, a lower electromagnet 2, a left electromagnet 3, a right electromagnet 4, a front annular electromagnet 5 and a rear annular electromagnet 6 and a permanent magnet supporting tape operation part comprising a permanent magnet column 7, wherein the upper electromagnet 1, the lower electromagnet 2, the left electromagnet 3 and the right electromagnet 4 jointly enclose a permanent magnet column accommodating space, and the permanent magnet column 7 is arranged in the permanent magnet column accommodating space, so that the permanent magnet column 7 can be accurately suspended and positioned in the permanent magnet column accommodating space by controlling the magnetic field direction of the electromagnetic positioning part, after the drip irrigation tape is sleeved on the permanent magnet column 7, the vertical movement of the permanent magnet column 7 can be realized by changing the magnetic field direction of the electromagnetic positioning part, after the permanent magnet column 7 positions the drip irrigation tape on the upper electromagnet 1 or the lower electromagnet 2 provided with the laser punching gun 8, a controller controls the laser punching gun 8 to emit laser to punch holes on the pipe wall, the permanent magnet column 7 can be used for supporting the drip irrigation tape and preventing laser from penetrating through the laminated pipe wall of the drip irrigation tape on one hand, and on the other hand, accurate positioning punching of the drip irrigation tape can be realized on the upper electromagnet 1 or the lower electromagnet 2 provided with the laser punching gun 8 through adsorption, so that the condition that unqualified products are produced due to punching of the lower pipe wall can be prevented on the premise that the debugging period is shortened, waste is reduced, and firm forming of water outlet holes is realized.
Claims (3)
1. A drip irrigation tape laser drilling method comprises an electromagnetic positioning part, a permanent magnet supporting tape operation part and an electric control part;
the electromagnetic positioning part comprises an upper electromagnet (1), a lower electromagnet (2), a left electromagnet (3), a right electromagnet (4), a front annular electromagnet (5) and a rear annular electromagnet (6), wherein conductive winding coils are wound on the upper electromagnet, the lower electromagnet, the front annular electromagnet and the rear annular electromagnet; the upper electromagnet (1), the lower electromagnet (2), the left electromagnet (3) and the right electromagnet (4) are all of long strip-shaped structures arranged along the front-back direction, the upper electromagnet (1) and the lower electromagnet (2) are arranged in an up-down parallel opposite mode, the left electromagnet (3) and the right electromagnet (4) are arranged in an up-down parallel opposite mode, and the upper electromagnet (1), the lower electromagnet (2), the left electromagnet (3) and the right electromagnet (4) are arranged in an left-right parallel opposite mode; the front annular electromagnet (5) and the rear annular electromagnet (6) which are coaxially arranged are symmetrically arranged at the front end and the rear end of the permanent magnet column accommodating space in a front-back manner, and the central axes of the front annular electromagnet (5) and the rear annular electromagnet (6) are arranged in a collinear manner with the geometric central line of the permanent magnet column accommodating space; a laser perforating gun mounting hole which is vertically arranged is formed in the upper electromagnet (1) or the lower electromagnet (2), the laser perforating gun (8) is fixedly arranged in the laser perforating gun mounting hole, and the bottom end of a laser emitting opening of the laser perforating gun (8) is positioned in the laser perforating gun mounting hole;
the permanent magnet supporting band operation part comprises a permanent magnet column (7) of a long strip-shaped structure arranged in a permanent magnet column accommodating space, the outline of the permanent magnet column (7) is subjected to rounding treatment, the length dimension of the permanent magnet column (7) in the front-back direction is larger than that of an upper electromagnet (1) or a lower electromagnet (2), at least the rear end of the permanent magnet column (7) is provided with a spherical surface or a conical guide structure, the outline dimension of the spherical surface or the conical guide structure is not smaller than that of the longitudinal section of the permanent magnet column (7), the upper end or the lower end of the spherical surface or the conical guide structure corresponding to the installation position of the laser drilling gun (8) is provided with an inclined surface guide structure matched with the inclined surface guide structure of the spherical surface or the conical guide structure in inclination, the permanent magnet column (7) is provided with a bottom plane of the upper electromagnet (1) and a top plane of the lower electromagnet (2) matched with each other The working plane comprises an upper working plane and a lower working plane which are symmetrically arranged in parallel up and down;
the electric control part comprises a controller, an electromagnetic field control loop and a laser drilling control loop, wherein the controller is respectively electrically connected with conductive winding coils of the upper electromagnet (1), the lower electromagnet (2), the left electromagnet (3), the right electromagnet (4), the front annular electromagnet (5) and the rear annular electromagnet (6), and is electrically connected with the laser drilling gun (8);
the method is characterized in that after a permanent magnet column (7) is placed in a permanent magnet column accommodating space, a controller is operated to enable conductive winding coils of an upper electromagnet (1) and a lower electromagnet (2) to be electrified simultaneously, the direction of a magnetic field of an electromagnetic field generated by the upper electromagnet (1) is ensured to be the same as that of a magnetic field of an upper working plane of the permanent magnet column (7), the direction of a magnetic field of an electromagnetic field generated by the lower electromagnet (2) is ensured to be the same as that of a magnetic field of a lower working plane of the permanent magnet column (7), the permanent magnet column (7) is suspended between the upper electromagnet (1) and the lower electromagnet (2), a pipe end of a drip irrigation tape is sleeved on the permanent drip irrigation column (7) after penetrating through a center hole of a rear annular electromagnet (6), the pipe end of the drip irrigation tape is installed on a stepping traction tape winding device after penetrating through a center hole of a front annular electromagnet (5), and then the controller is operated to enable a left electromagnet (3), a right electromagnet (4), The conductive winding coils of the front annular electromagnet (5) and the rear annular electromagnet (6) are simultaneously electrified, the direction of the magnetic field of the electromagnetic field generated by the left electromagnet (3) is the same as the direction of the magnetic field on the left side surface of the permanent magnet column (7), the direction of the magnetic field of the electromagnetic field generated by the right electromagnet (4) is the same as the direction of the magnetic field on the right side surface of the permanent magnet column (7), the direction of the magnetic field of the electromagnetic field generated by the front annular electromagnet (5) is the same as the direction of the magnetic field on the front end surface of the permanent magnet column (7), the direction of the magnetic field of the electromagnetic field generated by the rear annular electromagnet (6) is the same as the direction of the magnetic field on the rear end surface of the permanent magnet column (7), and the permanent magnet column (7) is accurately positioned in a permanent magnet column accommodating space in a suspending way; after the stepping traction tape winding device acts to drive the drip irrigation tape to move forward to a set distance and is positioned, the controller controls the conductive winding coil of the upper electromagnet (1) or the lower electromagnet (2) provided with the laser perforating gun (8) to be electrified reversely, the direction of the magnetic field of the electromagnetic field generated by the upper electromagnet (1) or the lower electromagnet (2) provided with the laser perforating gun (8) is opposite to the direction of the magnetic field of the working plane of the permanent magnet column (7), the permanent magnet column (7) rapidly moves towards the upper electromagnet (1) or the lower electromagnet (2) provided with the laser perforating gun (8) under the action of the repulsive force and the adsorptive force of the electromagnetic field and is adsorbed and attached to the upper electromagnet (1) or the lower electromagnet (2) provided with the laser perforating gun (8) through the pipe wall of the drip irrigation tape, then the controller controls the laser perforating gun (8) to emit laser to perforate the pipe wall of the drip irrigation tape pressed on the working plane of the permanent magnet column (7), after the set time, the controller controls the laser perforating gun (8) to stop emitting and complete perforating; then the controller controls a conductive winding coil of an upper electromagnet (1) or a lower electromagnet (2) provided with a laser perforating gun (8) to be powered on in the forward direction, the direction of a magnetic field of an electromagnetic field generated by the upper electromagnet (1) or the lower electromagnet (2) provided with the laser perforating gun (8) is the same as that of a magnetic field of a working plane of a permanent magnet column (7), and the permanent magnet column (7) rapidly leaves the upper electromagnet (1) or the lower electromagnet (2) provided with the laser perforating gun (8) to reset under the repulsion action of the electromagnetic field, so that a perforating work flow is completed; and controlling the stepping traction tape winding device to perform stepping action and driving the drip irrigation tape to step forward for a set distance and then continuously punching.
2. The method for perforating the drip irrigation tape by using the laser as claimed in claim 1, wherein the working plane of the permanent magnet column (7) is provided with a high-reflection film (9) at a position corresponding to the laser perforating gun (8); the laser beam is prevented from burning the working plane of the permanent magnetic column (7) by the high reflection film (9).
3. The laser punching method for the drip irrigation tape according to claim 1, wherein a smoke treatment mechanism is further arranged on the laser punching device for the drip irrigation tape, the smoke treatment mechanism comprises a negative pressure adsorption pipeline and a smoke purification component comprising a negative pressure air pump, one end of the negative pressure adsorption pipeline is communicated and connected with the permanent magnet column accommodating space, the other end of the negative pressure adsorption pipeline is connected with the smoke purification component, and the smoke purification component is electrically connected with a controller of the electric control part; in the laser drilling process, the controller starts the smoke purification component at the same time, and smoke generated by laser drilling is purified through the smoke purification component.
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| CN202110264081.6A CN112958923B (en) | 2019-10-29 | 2019-10-29 | Laser hole making method for drip irrigation tape |
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| CN202110264081.6A CN112958923B (en) | 2019-10-29 | 2019-10-29 | Laser hole making method for drip irrigation tape |
| CN201911036753.7A CN110666369B (en) | 2019-10-29 | 2019-10-29 | Drip irrigation tape laser drilling method |
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| CN202110259528.0A Active CN113042913B (en) | 2019-10-29 | 2019-10-29 | Forming method of water outlet of drip irrigation tape |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110666369A (en) | 2020-01-10 |
| CN113042913A (en) | 2021-06-29 |
| CN110666369B (en) | 2021-04-23 |
| CN113042913B (en) | 2022-03-04 |
| CN112958923A (en) | 2021-06-15 |
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