A laser drilling device for drip irrigation tape drippers

Abstract

The invention relates to the technical field of drip irrigation tape processing, and specifically to a laser punching device for drip irrigation tape drippers of a strip type, comprising a reel, a traction mechanism and a guiding mechanism, wherein a drip irrigation tape is wound on the reel, one end of the drip irrigation tape is connected to the reel, and the other end is pulled by the traction mechanism, and under the action of a limiting mechanism and a cylindrical rod, the drip irrigation tape will be in a round tube shape when passing under a laser puncher, and under the action of a high-definition camera and a visual recognition system, the laser puncher can accurately punch holes in the drip irrigation tape, and due to the obstruction of an expansion plate, it can be ensured that the laser puncher does not damage the lower layer of the tube wall while punching holes in the upper layer of the drip irrigation tape; under the cooperation of the expansion mechanism and the expansion plate, the device can be applicable to drip irrigation tapes of different diameters, thereby increasing the adaptability of the device, and the orifice formed by the high-temperature laser hole punching of the drip irrigation tape is quickly shaped, thereby preventing the orifice from contacting the lower layer of the tube wall before cooling and causing adhesion.

Description

Technical Field

[0001] The invention relates to the technical field of drip irrigation belt processing, in particular to a laser drilling device for drippers of a strip-type drip irrigation belt. Background Art

[0002] In the field of agricultural irrigation, drip irrigation technology has gradually become the mainstream method of modern agricultural irrigation with its advantages of water-saving, high efficiency, and precise fertilization. In the drip irrigation system, the drip irrigation tape is a key component, and its design and manufacturing quality directly affect the irrigation effect and crop growth. In the existing technology, the diameter of the drip irrigation tape is carefully set to between 4 and 20 mm, and the wall thickness is strictly controlled between 0.1 and 0.6 mm to meet the needs of different crop types and irrigation, reduce the weight of the pipe body, and facilitate laying and operation.

[0003] As an innovative solution, laser drilling technology is gradually being introduced into the production of drip irrigation tapes. Laser drilling has great potential in improving the manufacturing accuracy and reducing costs of drip irrigation tapes with its excellent molding quality, extremely low burr generation rate and high work efficiency. However, in practical applications, since the drip irrigation tape is often driven by the traction pulley through the punching device in the state of stacked tube walls during processing, laser drilling faces the technical difficulty of accurately controlling the power density of the laser beam. In order to ensure that the laser beam only penetrates the upper tube wall without damaging the lower layer, it is necessary to continuously optimize the laser parameters, which is very troublesome, and a large amount of drip irrigation tape will be wasted during the debugging stage. To this end, we propose a laser drilling device for drip irrigation tape drippers with strips. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a laser drilling device for drip irrigation tape drippers, comprising a drum, a traction mechanism and a guide mechanism, wherein a drip irrigation tape is wound on the drum, one end of the drip irrigation tape is connected to the drum, and the other end is pulled by the traction mechanism, and further comprises:

[0005] A support platform, the support platform is placed on the ground, and a laser puncher is installed on the support platform;

[0006] A support mechanism, wherein the support mechanism is mounted on a support platform and supports the drip irrigation belt portion in contact with the support mechanism, wherein the guide mechanism is composed of two guides and is located on the same horizontal line, and the drip irrigation belt between the two guides is limited to a straight line, wherein the support platform and the support mechanism are located between the two guides, and the support mechanism and the guide mechanism jointly limit the moving track of the drip irrigation belt being pulled;

[0007] A fixing seat, the fixing seat is fixed on the supporting platform, a display control screen and a high-definition camera are installed on the fixing seat, the high-definition camera and the display control screen are electrically connected, and a visual recognition system is arranged in the display control screen;

[0008] A cylindrical rod, the cylindrical rod is arranged inside the drip irrigation belt, and conical heads are fixed at both ends of the cylindrical rod, the maximum cross-sectional diameter of the conical head is larger than the diameter of the cylindrical rod, and the surface is plated with chromium of not less than 0.2 mm;

[0009] An expansion plate, wherein the expansion plates are arc-shaped and there are three of them, arranged in a circular array on the periphery of the cylindrical rod, and used to support the drip irrigation belt;

[0010] An expansion mechanism, the expansion mechanism is mounted on the cylindrical rod and connected to the expansion plate, the expansion mechanism is used to change the distance between the expansion plate and the cylindrical rod, driving the expansion plate to always fit the inner wall of the drip irrigation belt to adapt to drip irrigation belts of different diameters;

[0011] The limiting mechanism is installed on the support platform and is in contact with the drip irrigation belt. The limiting mechanism limits the moving range of the cylindrical rod and cooperates with the drip irrigation belt to support the cylindrical rod.

[0012] Preferably, the support mechanism comprises a first support roller and a second support roller mounted on the support platform, wherein the first support roller and the second support roller are arranged up and down, and there are a plurality of the first support rollers and the second support rollers are arranged in a staggered manner.

[0013] Preferably, the expansion mechanism includes a slip ring relatively sleeved on the cylindrical rod, the slip ring is provided with a first groove, there are three first grooves in a circular array, a third support rod is installed in the first groove, connecting seats are installed on both sides of the expansion plate, a fourth support rod is installed on the connecting seat, a rotating rod is connected between the third support rod and the fourth support rod, rings are installed at both ends of the rotating rod, the two rings are respectively penetrated by the third support rod and the fourth support rod, and also includes a limiting mechanism installed on the cylindrical rod, the limiting mechanism limits the position of the slip ring.

[0014] Preferably, the limiting mechanism comprises screw grooves relatively opened on the cylindrical rod, an internally threaded nut is relatively sleeved on the cylindrical rod, and the thread of the internally threaded nut is matched with the screw groove.

[0015] Preferably, the limiting mechanism includes a fixed block fixed on the support platform, a sliding rod is installed through the fixed block, both ends of the sliding rod are fixed to the support platform through support blocks, a servo motor is installed on the support platform, a screw is fixed on the output shaft of the servo motor, the screw penetrates the fixed block, the screw and the fixed block are rotatably connected, the thread on the screw is a bidirectional thread, clamping plates are provided on both sides of the fixed block, the clamping plates are penetrated by the screw and the sliding rod, fifth support rods are installed on both sides of the clamping plates, the top of the fifth support rod is sleeved with a first roller, and the first roller clamps the drip irrigation belt.

[0016] Preferably, the clamping plates are relatively arranged with fixed plates, the fixed plates are slidably penetrated by square rods, both ends of the square rods are fixed with limiting plates, the square rods are sleeved with square springs, one side of the square spring is connected to the fixed plate, and the other end is connected to the limiting plate close to the drip irrigation belt side, and the limiting plate close to the drip irrigation belt side is installed with a second roller, and the second roller clamps the drip irrigation belt.

[0017] Preferably, a shaping mechanism is installed on the upper clamping plate, and the shaping mechanism includes an air pump installed on a fixed block. The air pump is located on the side of the upper clamping plate close to the traction mechanism. A pipe is installed on the air pump, and an air nozzle is installed on the top of the pipe.

[0018] Preferably, two second grooves are provided on one side of the expansion plate close to the inner wall of the drip irrigation belt. In this state, after the expansion plate is rotated 90°, its cross-section is "E" shaped, and both ends are clamped by the second roller. The expansion plate is coated with a high-reflective coating.

[0019] Preferably, both ends and the middle portion of the expansion plate are chamfered.

[0020] Preferably, an alumina ceramic is sleeved on the cylindrical rod, and the alumina ceramic corresponds to the position of the middle part of the expansion plate.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. Under the action of the limiting mechanism and the cylindrical rod, the drip irrigation belt will be in a round tube shape when passing under the laser puncher. Under the action of the high-definition camera and the visual recognition system, the laser puncher can accurately punch holes in the drip irrigation belt. Due to the obstruction of the expansion plate, it can ensure that the laser puncher does not damage the lower tube wall while punching holes in the upper tube wall of the drip irrigation belt;

[0023] 2. With the cooperation of the expansion mechanism and the expansion plate, the device can be applied to drip irrigation belts of different diameters, thus increasing the adaptability of the device;

[0024] 3. Under the action of the shaping mechanism, the hole formed by the laser high-temperature hole opening of the drip irrigation belt is quickly shaped, which prevents the hole from contacting the lower pipe wall before cooling and causing adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a partial structural schematic diagram of the fixing seat of the present invention;

[0027] Figure 3 It is a partial structural schematic diagram of the laser puncher of the present invention;

[0028] Figure 4 It is a partial side view structural schematic diagram of the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0030] Figure 6 It is a schematic diagram of the structure of another partial viewing angle of the present invention;

[0031] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B in the middle;

[0032] Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point C in the middle.

[0033] In the figure: 10, reel; 11, traction mechanism; 12, guide mechanism; 121, guide; 2, support platform; 21, laser puncher; 3, support mechanism; 31, first support roller; 32, second support roller; 4, fixed seat; 41, display control screen; 42, high-definition camera; 5, cylindrical rod; 51, conical head; 52, alumina ceramic; 6, expansion plate; 61, second groove; 7, expansion mechanism; 71, slip ring; 72, first groove; 73, third support rod; 74, connecting seat ;75. Fourth support rod;76. Rotating rod;77. Ring;700. Limiting mechanism;701. Screw groove;702. Internal threaded nut;8. Limiting mechanism;81. Fixed block;82. Sliding rod;83. Servo motor;84. Screw rod;85. Clamping plate;86. Fifth support rod;87. First roller;88. Fixed plate;89. Square rod;810. Limiting plate;811. Square spring;812. Second roller;9. Shaping mechanism;91. Air pump;92. Pipeline;93. Air nozzle. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-8 The present invention provides a technical solution: a laser drilling device for drip irrigation tape drippers, comprising a reel 10, a traction mechanism 11 and a guide mechanism 12, wherein a drip irrigation tape is wound on the reel 10, one end of the drip irrigation tape is connected to the reel 10, and the other end is pulled by the traction mechanism 11, and further comprising:

[0037] A support platform 2 is placed on the ground and a laser puncher 21 is installed on the support platform 2;

[0038] The support mechanism 3 is installed on the support platform 2 to support the drip irrigation belt in contact with it. The guide mechanism 12 is composed of two guides 121 and is located on the same horizontal line. It is used to limit the drip irrigation belt between the two guides 121 to a straight line. The support platform 2 and the support mechanism 3 are located between the two guides 121. The support mechanism 3 and the guide mechanism 12 jointly limit the moving trajectory of the drip irrigation belt being pulled;

[0039] A fixing base 4, the fixing base 4 is fixed on the supporting platform 2, a display control screen 41 and a high-definition camera 42 are installed on the fixing base 4, the high-definition camera 42 and the display control screen 41 are electrically connected, and a visual recognition system is arranged in the display control screen 41;

[0040] A cylindrical rod 5 is provided inside the drip irrigation belt, and conical heads 51 are fixed at both ends of the cylindrical rod 5. The maximum diameter of the cross section of the conical head 51 is larger than the diameter of the cylindrical rod 5, and the surface is plated with chromium of not less than 0.2 mm;

[0041] The chrome plating can reduce the friction between the conical head 51 and the inner wall of the drip irrigation belt, so that the process of pulling the drip irrigation belt is smoother.

[0042] The expansion plates 6 are arc-shaped and there are three of them, which are arranged in a circular array outside the cylindrical rod 5;

[0043] An expansion mechanism 7, the expansion mechanism 7 is mounted on the cylindrical rod 5 and connected to the expansion plate 6, and the expansion mechanism 7 is used to change the distance between the expansion plate 6 and the cylindrical rod 5, so as to drive the expansion plate 6 to always fit the inner wall of the drip irrigation belt to adapt to drip irrigation belts of different diameters;

[0044] The limiting mechanism 8 is installed on the support platform 2 and is in contact with the drip irrigation belt. The limiting mechanism 8 limits the movement range of the cylindrical rod 5 and supports the cylindrical rod 5 in cooperation with the drip irrigation belt.

[0045] The supporting mechanism 3 comprises a first supporting roller 31 and a second supporting roller 32 mounted on the supporting platform 2. The first supporting roller 31 and the second supporting roller 32 are arranged up and down, and there are a plurality of the first supporting rollers 31 and the second supporting rollers 32, which are staggered.

[0046] The traction mechanism 11, the guiding mechanism 12, the laser puncher 21, the display control screen 41, the high-definition camera 42, and the visual recognition system are all existing technologies and are mature products necessary for the equipment for drilling holes in the drip irrigation belt.

[0047] The first supporting roller 31 and the second supporting roller 32 are staggered in an up-and-down manner, and combined with the guiding mechanism 12, the drip irrigation tape can be transported in a stable specific posture.

[0048] The expansion mechanism 7 includes a slip ring 71 which is relatively sleeved on the cylindrical rod 5. The slip ring 71 is provided with a first groove 72. There are three first grooves 72 in a circular array. Third support rods 73 are installed in the first grooves 72. Connecting seats 74 are installed on both sides of the expansion plate 6. Fourth support rods 75 are installed on the connecting seats 74. A rotating rod 76 is connected between the third support rod 73 and the fourth support rod 75. Rings 77 are installed at both ends of the rotating rod 76. The two rings 77 are respectively penetrated by the third support rod 73 and the fourth support rod 75. It also includes a limiting mechanism 700 installed on the cylindrical rod 5. The limiting mechanism 700 limits the position of the slip ring 71.

[0049] The limiting mechanism 700 includes screw grooves 701 which are relatively opened on the cylindrical rod 5 , and an internally threaded nut 702 which is relatively sleeved on the cylindrical rod 5 , and the threads of the internally threaded nut 702 are matched with the screw grooves 701 .

[0050] Before drilling, the staff can rotate the internal thread nuts 702 on both sides of the cylindrical rod 5 at the same time according to the diameter of the drip irrigation tape. With the cooperation of the screw groove 701 on the cylindrical rod 5, the two internal thread nuts 702 are close to each other, and the ring 77 is squeezed to make the ring 77 close to each other. Under the action of the rotating rod 76, the third support rod 73 and the fourth support rod 75, the three expansion plates 6 are correspondingly away from the cylindrical rod 5, and then inserted into the drip irrigation tape. Under the restriction of the inner wall of the drip irrigation tape, the expansion plate 6 is tightly attached to the inner wall of the drip irrigation tape to open the drip irrigation tape at the position. If it is used for a drip irrigation tape with a smaller diameter, the two internal thread nuts 702 are rotated in the opposite direction to lose the obstruction of the internal thread nuts 702. Under the restriction of the inner wall of the drip irrigation tape, the three expansion plates 6 are correspondingly close to the cylindrical rod 5 to adapt to the drip irrigation tape with a smaller diameter.

[0051] It should be noted that scale lines may be provided on the cylindrical rod 5 to enable faster and more accurate adjustment of the internal thread nut 702 according to drip irrigation tapes of different diameters.

[0052] The limiting mechanism 8 includes a fixed block 81 fixed on the support platform 2, a sliding rod 82 is installed through the fixed block 81, both ends of the sliding rod 82 are fixed to the support platform 2 through the support blocks, a servo motor 83 is installed on the support platform 2, a screw 84 is fixed on the output shaft of the servo motor 83, the screw 84 penetrates the fixed block 81, the screw 84 and the fixed block 81 are connected by a bearing, the thread on the screw 84 is a bidirectional thread, clamping plates 85 are provided on both sides of the fixed block 81, the clamping plates 85 are penetrated by the screw 84 and the sliding rod 82, the fifth support rod 86 is installed on both sides of the clamping plate 85, the top of the fifth support rod 86 is sleeved with a first roller 87, and the first roller 87 clamps the drip irrigation belt.

[0053] The drip irrigation tape is placed on the support mechanism 3, so that the cylindrical rod 5 and the corresponding part of the drip irrigation tape are placed between the first rollers 87, and then the servo motor 83 is turned on. The output shaft of the servo motor 83 drives the screw 84 to rotate, and the bidirectional thread on the screw 84 drives the clamping plates 85 to move closer or farther away from each other. The clamping plates 85 drive the first roller 87 to clamp the drip irrigation tape through the fifth support rod 86, so that the distance between the first rollers 87 located above and below is smaller than the maximum diameter of the cross section of the conical head 51, which can prevent the drip irrigation tape from synchronously driving the cylindrical rod 5 out of the range between the first rollers 87 during the process of the drip irrigation tape being pulled by the traction mechanism 11.

[0054] A fixing plate 88 is arranged opposite to the clamping plate 85, and a square rod 89 is slidably passed through the fixing plate 88. Limiting plates 810 are fixed at both ends of the square rod 89. Square springs 811 are sleeved on the square rod 89. One side of the square spring 811 is connected to the fixing plate 88, and the other end is connected to the limiting plate 810 close to the drip irrigation belt. A second roller 812 is installed on the limiting plate 810 close to the drip irrigation belt, and the second roller 812 clamps the drip irrigation belt.

[0055] The shape of the square rod 89 can prevent the second roller 812 fixedly connected to the limit plate 810 from shifting, thereby ensuring stable transmission of the drip tape. Under the action of the square spring 811, the second roller 812 is in close contact with the outer wall of the drip tape, further limiting the range of motion of the cylindrical rod 5. At the same time, the cylindrical rod 5 can be supported to prevent the drip tape in contact with the cylindrical rod 5 from being pressed down due to its own gravity, thereby facilitating the laser puncher 21 to perform more precise punching.

[0056] like Figure 4 As shown, a shaping mechanism 9 is installed on the clamping plate 85 above the fixed block 81. The shaping mechanism 9 includes an air pump 91 installed on the fixed block 81. The air pump 91 is located on the side of the upper clamping plate 85 close to the traction mechanism 11. A pipe 92 is installed on the air pump 91, and an air nozzle 93 is installed on the top of the pipe 92.

[0057] The air pump 91 draws in the external wind and then sprays it out from the air nozzle 93 through the pipe 92. Since the laser will generate extremely high temperature, the edges of the holes punched on the drip irrigation tape are in a molten state. If the upper and lower tube walls of the drip irrigation tape are re-attached in a short period of time, the punching position will adhere to the inner wall of the lower layer of the drip irrigation tape, and the periphery of the laser-punched hole on the drip irrigation tape is easy to fit with the lower tube wall, which is inconvenient for subsequent processing. The air nozzle 93 of the device continuously shapes the section through which the hole must pass with cold air, quickly reduces the temperature of the hole, and reduces the probability of such a situation occurring.

[0058] Two second grooves 61 are formed on one side of the expansion plate 6 close to the inner wall of the drip irrigation belt. Figure 7 As shown, in this state, after the expansion plate 6 is rotated 90°, its cross section is "E"-shaped, and both ends are clamped by the second roller 812, and a high-reflective coating is applied on the expansion plate 6.

[0059] The highly reflective coating can reflect excess laser energy so that the expansion plate 6 will not absorb this energy, thereby preventing the expansion plate 6 from absorbing too much energy and raising its temperature, thereby damaging the drip irrigation belt in contact with it.

[0060] It should be noted that the laser emitted by the laser puncher 21 will be reflected after irradiating the expansion plate 6. According to the path of laser reflection, a heat absorbing plate can be set on its reflection path to absorb the reflected laser to prevent the reflected laser from causing damage to the equipment.

[0061] The second groove 61 greatly reduces the contact area between the expansion plate 6 and the inner wall of the drip irrigation belt, reducing the friction force that the drip irrigation belt needs to overcome when passing through the cylindrical rod 5. The high-reflective coating can further reduce the damage of the laser to the expansion plate 6 and extend the service life of the expansion plate 6.

[0062] Both ends and the middle part of the expansion plate 6 are chamfered to prevent the drip irrigation belt from being scratched by one side of the expansion plate 6 when the drip irrigation belt passes through the expansion plate 6.

[0063] The working principle is as follows: before drilling holes, the staff can simultaneously rotate the internal thread nuts 702 on both sides of the cylindrical rod 5 according to the diameter of the drip irrigation tape. With the cooperation of the screw groove 701 on the cylindrical rod 5, the two internal thread nuts 702 move closer to or farther away from each other. Under the action of the collar 77, the rotating rod 76, the third support rod 73 and the fourth support rod 75, the three expansion plates 6 move away from or closer to the cylindrical rod 5 accordingly, and then are inserted into the drip irrigation tape. Under the restriction of the inner wall of the drip irrigation tape, the expansion plates 6 are tightly attached to the inner wall of the drip irrigation tape, and the drip irrigation tape at the position is stretched open.

[0064] Then the staff placed the drip irrigation belt on the support mechanism 3, so that the cylindrical rod 5 and the corresponding drip irrigation belt part were placed between the first roller 87, and then turned on the servo motor 83. The output shaft of the servo motor 83 drove the screw 84 to rotate, and the bidirectional thread on the screw 84 drove the clamping plate 85 to move closer or farther away from each other. The clamping plate 85 drove the first roller 87 to clamp the drip irrigation belt through the fifth support rod 86, and the distance between the first rollers 87 located above and below was smaller than the diameter of the conical head 51, so that the drip irrigation belt could not be pulled by the traction mechanism 11. The drip irrigation belt synchronously drove the cylindrical rod 5 to leave the range between the first rollers 87, and the other end of the drip irrigation belt was connected to the traction mechanism 11. Then the display control screen 41 and the laser puncher 21 were turned on. When the dripper on the drip irrigation belt passed by, the high-definition camera 42 took a picture and was recognized by the visual recognition system, and the laser puncher 21 was controlled to punch holes in the drip irrigation belt.

[0065] The shape of the square rod 89 can prevent the position of the second roller 812 fixedly connected to the limiting plate 810 from being offset, thereby ensuring the stable transmission of the drip irrigation tape. Under the action of the spring, the second roller 812 is in close contact with the outer wall of the drip irrigation tape, further strengthening the limiting of the cylindrical rod 5, and supporting the cylindrical rod 5 to prevent the drip irrigation tape in contact with the cylindrical rod 5 from being pressed down due to its own gravity, so as to facilitate the laser puncher 21 to perform more accurate punching.

[0066] The air pump 91 extracts the external wind and then sprays it out from the air nozzle 93 through the pipe 92. Since the laser generates extremely high temperature, the holes on the drip irrigation tape are melted under high temperature. If the upper and lower layers of the perforated pipe walls are re-bonded in a short time, the periphery of the laser-punched holes on the drip irrigation tape is easy to be bonded with the lower layer of the pipe wall, which is inconvenient for subsequent processing. The air nozzle 93 of the device continuously shapes the section through which the hole must pass with cold air, quickly lowers the temperature of the hole, and reduces the probability of such a situation.

[0067] The second groove 61 greatly expands the contact area between the expansion plate 6 and the inner wall of the drip irrigation belt, reducing the friction force that the drip irrigation belt needs to overcome when passing through the cylindrical rod 5. The high reflective coating can further reduce the damage of the laser to the expansion plate 6 and extend the service life of the expansion plate 6.

[0068] Embodiment 2:

[0069] Based on Example 1, this application proposes another solution to this solution:

[0070] An alumina ceramic 52 is sleeved on the cylindrical rod 5 . The alumina ceramic 52 is columnar and corresponds to the middle part of the expansion plate 6 .

[0071] When the device is installed correspondingly to the drip irrigation tape, as the expansion mechanism 7 increases the distance between the expansion plate 6 and the cylindrical rod 5, the gap between the expansion plate 6 and the adjacent expansion plate 6 becomes larger, and then under the action of the square spring 811, the second roller 812 is tightly attached to the outer wall of the drip irrigation tape, and the activity range of the cylindrical rod 5 is limited by the drip irrigation tape. The gap between the expansion plates 6 corresponds to the position of the laser drilling. At this time, the laser generated by the laser puncher 21 penetrates the upper tube wall and irradiates the alumina ceramic 52. The excess energy is directly absorbed by the alumina ceramic 52 to avoid damage to the lower tube wall.

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser drilling device for drip irrigation tape drippers, comprising a reel (10), a traction mechanism (11) and a guide mechanism (12), wherein a drip irrigation tape is wound around the reel (10), one end of the drip irrigation tape is connected to the reel (10), and the other end is pulled by the traction mechanism (11), characterized in that: Also includes: A support platform (2), the support platform (2) being placed on the ground, and a laser puncher (21) being installed on the support platform (2); A support mechanism (3), wherein the support mechanism (3) is mounted on the support platform (2) and supports the drip irrigation belt in contact with the support mechanism (3); the guide mechanism (12) is composed of two guides (121) and is located on the same horizontal line, and is used to limit the drip irrigation belt between the two guides (121) to a straight line; the support platform (2) and the support mechanism (3) are located between the two guides (121); the support mechanism (3) and the guide mechanism (12) jointly limit the moving trajectory of the drip irrigation belt being pulled; a fixing seat (4), the fixing seat (4) being fixed on the support platform (2), a display control screen (41) and a high-definition camera (42) being mounted on the fixing seat (4), the high-definition camera (42) being electrically connected to the display control screen (41), and a visual recognition system being arranged in the display control screen (41); A cylindrical rod (5), the cylindrical rod (5) being arranged to penetrate inside the drip irrigation belt, with conical heads (51) being fixed at both ends of the cylindrical rod (5), the maximum cross-sectional diameter of the conical head (51) being greater than the diameter of the cylindrical rod (5), and the surface of the conical head being plated with chromium of not less than 0.2 mm; An expansion plate (6), wherein the expansion plates (6) are arc-shaped and are three in number and arranged in a circular array on the periphery of the cylindrical rod (5); An expansion mechanism (7), the expansion mechanism (7) being mounted on the cylindrical rod (5) and connected to the expansion plate (6), the expansion mechanism (7) being used to change the distance between the expansion plate (6) and the cylindrical rod (5), so as to drive the expansion plate (6) to always fit the inner wall of the drip irrigation tape, so as to adapt to drip irrigation tapes of different diameters; A limiting mechanism (8), wherein the limiting mechanism (8) is mounted on the support platform (2) and is in contact with the drip irrigation belt. The limiting mechanism (8) limits the movement range of the cylindrical rod (5) and cooperates with the drip irrigation belt to support the cylindrical rod (5).

2. According to claim 1, a laser drilling device for drip irrigation tape drippers is characterized in that: The support mechanism (3) comprises a first support roller (31) and a second support roller (32) mounted on the support platform (2); the first support roller (31) and the second support roller (32) are arranged up and down, and there are a plurality of the first support rollers and the second support rollers (32) are arranged in a staggered manner.

3. According to claim 1, a laser drilling device for drip irrigation tape drippers is characterized in that: The expansion mechanism (7) comprises a slip ring (71) which is relatively sleeved on the cylindrical rod (5), the slip ring (71) is provided with a first groove (72), there are three first grooves (72) in a circular array, a third support rod (73) is installed in each of the first grooves (72), connecting seats (74) are installed on both sides of the expansion plate (6), a fourth support rod (75) is installed on each of the connecting seats (74), a rotating rod (76) is connected between the third support rod (73) and the fourth support rod (75), both ends of the rotating rod (76) are provided with collars (77), the two collars (77) are respectively penetrated by the third support rod (73) and the fourth support rod (75), and also comprises a limiting mechanism (700) installed on the cylindrical rod (5), the limiting mechanism (700) limits the position of the slip ring (71).

4. A laser drilling device for drip irrigation tape drippers according to claim 3, characterized in that: The limiting mechanism (700) comprises screw grooves (701) relatively formed on the cylindrical rod (5), and an internally threaded nut (702) relatively sleeved on the cylindrical rod (5), wherein the threads of the internally threaded nut (702) fit in with the screw grooves (701).

5. The laser drilling device for drip irrigation tape drippers according to claim 1 is characterized in that: The limiting mechanism (8) comprises a fixed block (81) fixed on the support platform (2), a sliding rod (82) is installed through the fixed block (81), both ends of the sliding rod (82) are fixed to the support platform (2) through the support block, a servo motor (83) is installed on the support platform (2), a screw rod (84) is fixed on the output shaft of the servo motor (83), the screw rod (84) passes through the fixed block (81), the screw rod (84) and the fixed block (81) are connected through a bearing, the thread on the screw rod (84) is a bidirectional thread, clamping plates (85) are provided on both sides of the fixed block (81), the clamping plates (85) are penetrated by the screw rod (84) and the sliding rod (82), fifth support rods (86) are installed on both sides of the clamping plates (85), the top end of the fifth support rod (86) is sleeved with a first roller (87), and the first roller (87) clamps the drip irrigation belt.

6. The laser drilling device for drip irrigation tape drippers according to claim 5 is characterized in that: The clamping plates (85) are each provided with a fixing plate (88) opposite thereto. A square rod (89) is slidably passed through the fixing plates (88). Limiting plates (810) are fixed at both ends of the square rod (89). A square spring (811) is sleeved on the square rod (89). One end of the square spring (811) is connected to the fixing plate (88), and the other end is connected to the limiting plate (810) close to the drip irrigation belt. A second roller (812) is installed on the limiting plate (810) close to the drip irrigation belt. The second roller (812) clamps the drip irrigation belt.

7. The laser drilling device for drip irrigation tape drippers according to claim 6 is characterized in that: A shaping mechanism (9) is installed on the clamping plate (85) located above the fixed block (81). The shaping mechanism (9) comprises an air pump (91) installed on the fixed block (81). The air pump (91) is located on a side of the upper clamping plate (85) close to the traction mechanism (11). A pipe (92) is installed on the air pump (91). An air nozzle (93) is installed at the top of the pipe (92).

8. The laser drilling device for drip irrigation tape drippers according to claim 6 is characterized in that: Two second grooves (61) are provided on one side of the expansion plate (6) close to the inner wall of the drip irrigation belt. In this state, after the expansion plate (6) is rotated 90°, its cross-section is in an "E" shape, and both ends are clamped by the second roller (812). The expansion plate (6) is coated with a high-reflective coating.

9. The laser drilling device for drip irrigation tape drippers according to claim 1, characterized in that: Both ends and the middle portion of the expansion plate (6) are chamfered.

10. The laser drilling device for drip irrigation tape drippers according to claim 1, characterized in that: Alumina ceramics (52) are sleeved on the cylindrical rod (5).

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