Positioning device for welding drip irrigation water hose with prefabricated holes

Abstract

The utility model discloses a positioning device for prefabricated hole drip irrigation water hose welding, which comprises a rack, a conveying mechanism, a hole cutting mechanism and a carrying mechanism, the conveying mechanism is arranged on the rack and used for driving a water hose to move along the length direction of the water hose, the hole cutting mechanism comprises a base and a cutting knife, the base is arranged on the rack, and the cutting knife is arranged on the rack. The cutting knife is arranged on the base in a liftable mode and can move around the vertical axis, the cutting knife can ascend and descend to penetrate through the water hose so that the cutting knife can cut out a mounting hole in the water hose when moving around the vertical axis, and the carrying mechanism is used for carrying the water dropper base to the mounting hole. According to the positioning device for welding the prefabricated hole drip irrigation water hose, the installation hole can be rapidly formed, the dripper base can be rapidly positioned, the production efficiency is higher, and the labor cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of drip irrigation tape processing technology, and in particular to a positioning device for welding pre-drilled hole drip irrigation tape. Background Technology

[0002] Drip irrigation tape is a crucial component of drip irrigation systems. It uses multiple drippers to concentrate water and spray it directly onto crops, saving water and potentially increasing crop yields. The manufacturing process typically involves creating multiple mounting holes in a long, narrow tape. Multiple dripper holders are then positioned within these holes, welded to the tape, and then the two sides of the tape are welded together. Finally, the drippers are installed onto their holders. Currently, both the machining of the mounting holes and the positioning of the dripper holders are done manually, which is cumbersome, time-consuming, labor-intensive, inefficient, and results in high labor costs. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a positioning device for welding pre-drilled drip irrigation tape, which can quickly open installation holes and position dripper seats, resulting in higher production efficiency and lower labor costs.

[0004] A positioning device for welding pre-drilled drip irrigation hose according to an embodiment of the present invention includes a frame, a conveying mechanism, a cutting mechanism, and a transport mechanism. The conveying mechanism is disposed on the frame to drive the hose to move along the length of the hose. The cutting mechanism includes a base and a cutter. The base is disposed on the frame, and the cutter is vertically mounted on the base and can move around a vertical axis. The cutter can be raised and lowered to pierce the hose so that it can cut an installation hole in the hose when moving around the vertical axis. The transport mechanism is used to transport the dripper seat to the installation hole.

[0005] The positioning device for welding pre-drilled drip irrigation tape according to the embodiments of the present utility model has at least the following beneficial effects:

[0006] When it is necessary to position the dripper holder on the mounting hole of the water hose, the water hose is driven to move along the length of the water hose by the conveying mechanism. During the movement of the water hose, the cutter rises and falls to pierce the water hose and moves around the vertical axis. The cutter can cut the mounting hole on the water hose. Then, the dripper holder is transported to the mounting hole by the transport mechanism, which completes the positioning of the dripper holder. Compared with manually opening the mounting hole and manually positioning the dripper holder, the production efficiency is higher and the labor cost is lower.

[0007] According to some embodiments of the present invention, the conveying mechanism includes an unwinding roller and a winding roller, the unwinding roller and the winding roller being arranged side by side on the frame, the unwinding roller being used to unwind the water hose, and the winding roller being used to wind the water hose.

[0008] According to some embodiments of the present invention, the hole-cutting mechanism further includes a first lifting part and a rotating part. The first lifting part is movably disposed on the base, the rotating part is rotatably mounted on the first lifting part around the vertical axis, and the cutter is disposed on the rotating part.

[0009] According to some embodiments of the present invention, the bottom end of the rotating part is provided with a connecting hole, the center line of the connecting hole is coaxial with the vertical axis, the hole wall of the connecting hole is provided with multiple mounting surfaces, the multiple mounting surfaces are arranged circumferentially along the connecting hole, and at least some of the mounting surfaces are at different distances from the center line of the connecting hole, and the cutter is attached to one of the mounting surfaces and protrudes downward from the connecting hole.

[0010] According to some embodiments of the present invention, the conveying mechanism includes a conveying section and a clamping assembly. The conveying section is disposed on the frame and has a conveying groove. The conveying groove is used to convey the dripper holders in sequence. The clamping assembly is disposed on the frame and is used to clamp the dripper holders output from the conveying groove. After moving the clamped dripper holders to directly above the mounting holes of the water hose, the dripper holders are released.

[0011] According to some embodiments of the present invention, the clamping assembly includes a first clamp and a second clamp. The first clamp is disposed on the frame and can move along the conveying direction of the water hose. The first clamp has a clamping end located directly above the moving path of the mounting hole of the water hose. The second clamp is movably disposed on the frame for clamping the dripper seat output from the conveying trough and transferring it to the clamping end.

[0012] According to some embodiments of the present invention, the conveying mechanism further includes a limiting part, which is movably mounted on the frame in a horizontal direction. The upper surface of the limiting part is provided with a placement groove, which is provided through the side of the placement groove near the conveying groove. The limiting part can move to a first state and a second state. In the first state, the placement groove is connected to the output end of the conveying groove, so that one of the drippers at the output end of the conveying groove can be pushed into the placement groove by other drippers on the conveying groove. In the second state, the limiting part blocks the output end of the conveying groove, and the drippers in the placement groove can be clamped by the second clamp.

[0013] According to some embodiments of the present invention, the clamping assembly further includes a movable part and a second lifting part. The movable part is disposed on the frame and can be moved and adjusted along the width direction of the water belt. The second lifting part is disposed on the movable part in a lifting manner. The second clamp is disposed on the second lifting part. The movable part can be moved to a first position so that the second clamp is located directly above the moving path of the clamping end, and a second position directly above the placement groove when the limiting part is in the second state.

[0014] According to some embodiments of the present invention, the drip head seat is formed with an annular flange for conforming to the surface of the water hose, and limiting grooves are provided on both sides of the conveying groove for the annular flange to be inserted.

[0015] According to some embodiments of the present invention, the conveying mechanism further includes a vibratory feeder, the output end of which is connected to the input end of the conveying trough for storing the dripper holder and conveying the dripper holder into the conveying trough.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the handling mechanism;

[0020] Figure 3 This is a schematic diagram of the hole-cutting mechanism.

[0021] Icon labels:

[0022] 100 racks;

[0023] Conveying mechanism 200; Unwinding roller 201; Rewinding roller 202; Tensioning roller 203; Drive motor 204;

[0024] Hole cutting mechanism 300; base 301; cutter 302; first lifting part 303; rotating part 304; connecting hole 305; mounting surface 306; first driving member 307; second driving member 308;

[0025] The conveying mechanism 400; conveying section 401; conveying trough 402; clamping assembly 403; first clamp 404; clamping end 405; second clamp 406; limiting section 407; placement groove 408; moving section 409; second lifting section 410; limiting groove 411; vibratory feeder 412; third drive component 413; fourth drive component 414; fifth drive component 415; sixth drive component 416;

[0026] 500 ultrasonic welding mechanism;

[0027] 600 water hose;

[0028] Dropper holder 700; annular flange 701. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] The following is for reference. Figures 1 to 3 This invention describes a positioning device for welding pre-drilled drip irrigation tape according to an embodiment of the present invention.

[0034] refer to Figures 1 to 3 As shown, the positioning device for welding pre-drilled drip irrigation tape according to an embodiment of the present invention includes a frame 100, a conveying mechanism 200, a hole-cutting mechanism 300, and a transport mechanism 400.

[0035] The conveying mechanism 200 is disposed on the frame 100 to drive the water belt 600 to move along the length direction of the water belt 600. The width direction of the water belt 600 can be the width direction of the frame 100, and during the movement of the water belt 600, the thickness direction of at least a portion of the water belt 600 is vertical.

[0036] The cutting mechanism 300 includes a base 301 and a cutter 302. The base 301 is mounted on the frame 100, and the cutter 302 is vertically mounted on the base 301 and can move around a vertical axis. The cutter 302 can be raised and lowered to pierce the hose 600, so that it can cut installation holes in the hose 600 as it moves around the vertical axis. As the hose 600 moves along its length, the cutter 302 of the cutting mechanism 300 repeatedly rises and falls and moves around the vertical axis, thus sequentially cutting multiple installation holes in the hose 600. The cutter 302 can cut the portion of the hose 600 whose thickness direction is vertical, resulting in a better cutting effect.

[0037] The conveying mechanism 400 is used to sequentially transport multiple drip head holders 700 to multiple mounting holes, so that the multiple drip head holders 700 are respectively positioned on multiple mounting holes to facilitate subsequent welding.

[0038] It should be noted that an ultrasonic welding mechanism 500 can also be installed on the frame 100 to seal and weld the dripper holder 700 to the water hose 600 after the dripper holder 700 is positioned in the mounting hole of the water hose 600. Understandably, the cutting of the mounting hole, the positioning of the dripper holder 700, and the welding can be performed simultaneously. In this case, the conveying mechanism 200 can stop driving the water hose 600 to make the cutting of the mounting hole, the positioning of the dripper holder 700, and the welding more convenient.

[0039] In this embodiment, when it is necessary to position the dripper holder 700 on the mounting hole of the water hose 600, the water hose 600 is driven to move along the length of the water hose 600 by the conveying mechanism 200. During the movement of the water hose 600, the cutter 302 rises and falls to pierce the water hose 600 and moves around the vertical axis. The cutter 302 can cut the mounting hole on the water hose 600. Then, the dripper holder 700 is transported to the mounting hole by the transport mechanism 400, thus completing the positioning of the dripper holder 700. Compared with manually opening the mounting hole and manually positioning the dripper holder 700, the production efficiency is higher and the labor cost is lower.

[0040] refer to Figure 1As shown, in some embodiments of this utility model, the conveying mechanism 200 includes an unwinding roller 201 and a winding roller 202, which are arranged side by side on the frame 100. The unwinding roller 201 is used to unwind the water hose 600, and the winding roller 202 is used to wind the water hose 600. For example, the unwinding roller 201 and the take-up roller 202 can be located at both ends of the length direction of the frame 100. The unwinding roller 201 and the take-up roller 202 can be horizontally arranged and extend along the width direction of the frame 100. The frame 100 can be equipped with drive motors 204 for both the unwinding roller 201 and the take-up roller 202. The two drive motors 204 are respectively connected to the unwinding roller 201 and the take-up roller 202 to drive the unwinding roller 201 and the take-up roller 202 to rotate. The water tape 600 is wound on the unwinding roller 201, and the other end of the water tape 600 is connected to the take-up roller 202. When the unwinding roller 201 rotates, the water tape 600 can be unwound. When the take-up roller 202 rotates, the water tape 600 can be wound up, thereby driving the water tape 600 to move along its own length direction. The structure is simple, the operation is convenient, and the driving effect is good.

[0041] It should be noted that the frame 100 may be equipped with multiple tension rollers 203 to tension the water belt 600. In addition, the conveying mechanism 200 may also be other suitable structures, for example, the water belt 600 may be moved by multiple rollers.

[0042] refer to Figure 3 As shown, in some embodiments of this utility model, the cutting mechanism 300 further includes a first lifting part 303 and a rotating part 304. The first lifting part 303 is movably mounted on the base 301, and the rotating part 304 is rotatably mounted on the first lifting part 303 about a vertical axis. The cutter 302 is mounted on the rotating part 304. For example, the first lifting part 303 can be located above the water hose 600. The first lifting part 303 can be slidably mounted on the base 301. The base 301 can be provided with a first driving member 307, which is tractively connected to the first lifting part 303 to drive the first lifting part 303 to slide. The first lifting part 303 can be provided with a second driving member 308, which is tractively connected to the rotating part 304 to drive the rotating part 304 to rotate. The cutter 302 can be mounted at the bottom end of the rotating part 304 and has a gap between it and the rotation axis of the rotating part 304, that is, the vertical axis. When it is necessary to process an installation hole on the water hose 600, the lifting part descends, which drives the cutter 302 to descend. When the cutter 302 descends to pierce the water hose 600, the rotating part 304 rotates and controls the cutter 302 to move around the vertical axis. The cutter 302 can then cut an installation hole on the water hose 600. The operation is simple and convenient, and the efficiency and effect of cutting installation holes are higher.

[0043] It should be noted that the first driving component 307 can be a motor screw mechanism, a cylinder, a hydraulic cylinder, or an electric push rod, etc., and the second driving component 308 can be a motor or a rotating hydraulic cylinder, etc.

[0044] refer to Figure 3 As shown, in some embodiments of this utility model, the bottom end of the rotating part 304 is provided with a connecting hole 305. The center line of the connecting hole 305 is coaxial with the vertical axis. The hole wall of the connecting hole 305 is provided with multiple mounting surfaces 306. The multiple mounting surfaces 306 are arranged circumferentially along the connecting hole 305, and at least some of the mounting surfaces 306 are at different distances from the center line of the connecting hole 305. The cutter 302 is attached to one of the mounting surfaces 306 and protrudes downward from the connecting hole 305. For example, the mounting surface 306 can be parallel to the center line of the connecting hole 305, and the cutter 302 can be bonded or welded to one of the mounting surfaces 306. In this embodiment, the hole wall of the connecting hole 305 is provided with multiple mounting surfaces 306, and at least some of the mounting surfaces 306 are at different distances from the center line of the connecting hole 305. The cutter 302 is attached to one of the mounting surfaces 306. In this way, the distance between the cutter 302 and the rotation axis of the rotating part 304 can be adjusted, thereby enabling the cutting of mounting holes of different diameters according to actual needs, thus improving practicality. Furthermore, when cutting the mounting hole, the bottom surface of the rotating part 304 on the side of the connecting hole 305 can fit against the surface of the water hose 600, thereby reducing the deformation of the water hose 600 during cutting and resulting in a better cutting effect.

[0045] refer to Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the conveying mechanism 400 includes a conveying section 401 and a clamping assembly 403. The conveying section 401 is disposed on the frame 100 and has a conveying groove 402. The conveying groove 402 is used to convey the dripper holders 700 in sequence. The clamping assembly 403 is disposed on the frame 100 and is used to clamp the dripper holders 700 output from the conveying groove 402. After moving the clamped dripper holders 700 to directly above the mounting hole of the water hose 600, the dripper holders 700 are released. For example, the extension direction of the conveying trough 402 can be the width direction of the water hose 600. When it is necessary to position the dripper holder 700 in the mounting hole, multiple dripper holders 700 are placed sequentially at the input end of the conveying trough 402. The multiple dripper holders 700 can then move sequentially along the length direction of the conveying trough 402. The clamping component 403 can then sequentially clamp the dripper holders 700 that are leaving the output end of the conveying trough 402 and move them directly above different mounting holes of the water hose 600. Finally, the dripper holders 700 are released, and they fall and are positioned in the corresponding mounting holes. The operation is simple and convenient, and the positioning effect of the dripper holder 700 is better and the positioning efficiency is higher.

[0046] It should be noted that the handling mechanism 400 can also be other structures, such as a robotic arm.

[0047] refer to Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the clamping assembly 403 includes a first clamp 404 and a second clamp 406. The first clamp 404 is disposed on the frame 100 and can move along the conveying direction of the water belt 600. The first clamp 404 is provided with a clamping end 405, which is located directly above the moving path of the mounting hole of the water belt 600. The second clamp 406 is movably disposed on the frame 100 for clamping the dripper seat 700 output from the conveying trough 402 and transferring it to the clamping end 405.

[0048] For example, the first clamp 404 can be slidably mounted on the frame 100 along the conveying direction of the water hose 600. The frame 100 can be provided with a third driving member 413, which is connected to the first clamp 404 to drive the first clamp 404 to slide. In this embodiment, the second clamp 406 clamps the dripper seat 700 output from the conveying trough 402 and transfers it to the clamping end 405 of the first clamp 404. Since the clamping end 405 of the first clamp 404 is located directly above the moving path of the mounting hole of the water hose 600, when the first clamp 404 moves along the conveying direction of the water hose 600, it can drive the dripper seat 700 to move directly above the mounting hole of the water hose 600. When the clamping end 405 of the first clamp 404 releases the dripper seat 700, the dripper seat 700 can be positioned on the mounting hole of the water hose 600. The operation is simpler and more convenient, the positioning effect is better, and the positioning efficiency is higher.

[0049] It should be noted that the third drive component 413 can be a moving trolley, a motor screw mechanism, a cylinder, a hydraulic cylinder, or an electric push rod, etc.

[0050] refer to Figure 2As shown, in some embodiments of this utility model, the conveying mechanism 400 further includes a limiting part 407, which is movably mounted on the frame 100 in a horizontal direction. The upper surface of the limiting part 407 is provided with a placement groove 408, which is provided through the side of the placement groove 408 near the conveying groove 402. The limiting part 407 can move to a first state and a second state. In the first state, the placement groove 408 is connected to the output end of the conveying groove 402, so that one dropper seat 700 at the output end of the conveying groove 402 can be pushed into the placement groove 408 by other dropper seats 700 on the conveying groove 402. In the second state, the limiting part 407 blocks the output end of the conveying groove 402, and the dropper seat 700 in the placement groove 408 can be clamped by the second clamp 406. For example, the conveying trough 402 can extend along the width direction of the water belt 600, the limiting part 407 can be slidably installed on the frame 100 along the conveying direction of the water belt 600, the frame 100 can be provided with a fourth driving member 414, the fourth driving member 414 is connected to the limiting part 407 to drive the limiting part 407 to slide, and the shape and size of the placement trough 408 can be adapted to the shape and size of the dripper seat 700.

[0051] In this embodiment, when the limiting part 407 is moved to the first state, the placement groove 408 can be connected to the output end of the conveying groove 402. The dripper seat 700 at the output end of the conveying groove 402 can then be pushed into the placement groove 408 by other dripper seats 700 on the conveying groove 402. After that, when the limiting part 407 is moved to the second state, the second clamp 406 can clamp the dripper seat 700 in the placement groove 408. Moreover, when the second clamp 406 clamps the dripper seat 700, the limiting part 407 blocks the output end of the conveying groove 402, thereby preventing the dripper seat 700 in the conveying groove 402 from sliding out of the output end of the conveying groove 402 and falling down, which improves practicality.

[0052] It should be noted that the fourth drive component 414 can be a motor screw mechanism, a cylinder, a hydraulic cylinder, or an electric push rod, etc.

[0053] refer to Figure 2As shown, in some embodiments of the present invention, the clamping assembly 403 further includes a moving part 409 and a second lifting part 410. The moving part 409 is disposed on the frame 100 and can be moved and adjusted along the width direction of the water belt 600. The second lifting part 410 is disposed on the moving part 409 in a lifting manner. The second clamp 406 is disposed on the second lifting part 410. The moving part 409 can be moved to a first position so that the second clamp 406 is located directly above the moving path of the clamping end 405, and a second position directly above the placement groove 408 when the limiting part 407 is in the second state. For example, the moving part 409 can be slidably mounted on the frame 100 along the width direction of the frame 100, that is, the width direction of the moving water hose 600. The frame 100 can be provided with a fifth driving member 415, which is driven to the moving part 409 to control the sliding of the moving part 409. The second lifting part 410 can be slidably mounted on the moving part 409 along the vertical direction. The moving part 409 can be provided with a sixth driving member 416, which is driven to the second lifting part 410 to drive the second lifting part 410 to lift.

[0054] In this embodiment, sliding the moving part 409 to the second position allows the second clamp 406 to be positioned directly above the placement slot 408 when the limiting part 407 is in the second state. The second lifting part 410 then descends, causing the second clamp 406 to descend and clamp the dropper holder 700 within the placement slot 408. Afterward, sliding the moving part 409 to the first position moves the dropper holder 700 clamped by the second clamp 406 directly above the movement path of the clamping end 405 of the first clamp 404. When the first clamp 404 moves to a position where its clamping end 405 is directly below the dropper holder 700 clamped by the second clamp 406, the first clamp 404 can transfer the dropper holder 700 to the clamping end 405 of the second clamp 406, making the transfer of the dropper holder 700 more convenient and efficient.

[0055] It should be noted that the fifth driving component 415 can be a motor lead screw mechanism, a cylinder, a hydraulic cylinder, or an electric push rod, etc. The sixth driving component 416 can be a motor lead screw mechanism, a cylinder, a hydraulic cylinder, or an electric push rod, etc. In addition, the clamping assembly 403 can also be other structures, for example, it can be a robotic arm.

[0056] refer to Figure 2As shown, in some embodiments of this utility model, the dripper holder 700 has an annular flange 701 for adhering to the surface of the water hose 600, and limiting grooves 411 are provided on both sides of the conveying groove 402 for inserting the annular flange 701. For easier and more stable welding, the edge of the dripper holder 700 generally has an annular flange 701 for adhering to the surface of the water hose 600. In this embodiment, limiting grooves 411 are provided on both sides of the conveying groove 402. When the dripper holder 700 is conveyed by the conveying groove 402, the annular flange 701 of the dripper holder 700 is inserted into the limiting groove 411, thereby limiting the dripper holder 700 and preventing it from being shaken out of the conveying groove 402 during transport.

[0057] refer to Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the conveying mechanism 400 further includes a vibratory feeder 412, which is mounted on the frame 100. The output end of the vibratory feeder 412 is connected to the input end of the conveying trough 402 for storing and conveying the dripper holders 700 into the conveying trough 402. The vibratory feeder 412 can store multiple dripper holders 700. During vibration, the vibratory feeder 412 can sequentially convey the multiple dripper holders 700 into the conveying trough 402, thereby enabling the multiple dripper holders 700 to move sequentially along the conveying trough 402, thus facilitating the clamping assembly 403 to sequentially clamp them to the corresponding mounting holes.

[0058] It should be noted that the vibratory feeder 412 is a relatively common conveying device, and its structure and working principle will not be described in detail here.

[0059] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A positioning device for welding pre-drilled perforated drip irrigation tape, characterized in that, include: frame; A conveying mechanism, disposed on the frame, is used to drive the water belt to move along the length of the water belt; A hole-cutting mechanism includes a base and a cutter. The base is disposed on the frame, and the cutter is vertically mounted on the base and can move about a vertical axis. The cutter can be raised and lowered to pierce the water hose so that it can cut an installation hole in the water hose when it moves about the vertical axis. A transport mechanism is used to transport the drip head holder to the mounting hole.

2. The positioning device for welding pre-drilled drip irrigation hoses according to claim 1, characterized in that, The conveying mechanism includes an unwinding roller and a winding roller, which are arranged side by side on the frame. The unwinding roller is used to unwind the water hose, and the winding roller is used to wind the water hose.

3. The positioning device for welding pre-drilled drip irrigation hoses according to claim 1, characterized in that, The piercing mechanism further includes: The first lifting part is movably mounted on the base; A rotating part is rotatably mounted on the first lifting part around the vertical axis, and the cutter is disposed on the rotating part.

4. The positioning device for welding pre-drilled drip irrigation hoses according to claim 3, characterized in that, The bottom end of the rotating part is provided with a connecting hole, the center line of the connecting hole is coaxial with the vertical axis, the hole wall of the connecting hole is provided with multiple mounting surfaces, the multiple mounting surfaces are arranged along the circumference of the connecting hole, and at least some of the mounting surfaces are at different distances from the center line of the connecting hole. The cutter is attached to one of the mounting surfaces and protrudes downward from the connecting hole.

5. The positioning device for welding pre-drilled drip irrigation hoses according to claim 1, characterized in that, The transport mechanism includes: A conveying section is provided on the frame, and the conveying section is formed with a conveying groove for sequentially conveying the dripping head seats; A clamping assembly is provided on the frame. The clamping assembly is used to clamp the dripper seat output from the conveying trough, and to release the dripper seat after moving the clamped dripper seat directly above the mounting hole of the water hose.

6. The positioning device for welding pre-drilled drip irrigation hoses according to claim 5, characterized in that, The clamping assembly includes: A first clamp is provided on the frame and can move along the conveying direction of the water hose. The first clamp is provided with a clamping end, which is located directly above the moving path of the mounting hole of the water hose. A second clamp is movably mounted on the frame for clamping the dripper seat output from the conveying trough and transferring it to the clamping end.

7. The positioning device for welding pre-drilled drip irrigation hoses according to claim 6, characterized in that, The transport mechanism also includes: A limiting part is movably mounted on the frame in a horizontal direction. The upper surface of the limiting part is provided with a placement groove, which is provided through the side of the placement groove near the conveying groove. The limiting part can move to a first state and a second state. In the first state, the placement groove is connected to the output end of the conveying groove, so that one of the drippers at the output end of the conveying groove can be pushed into the placement groove by other drippers on the conveying groove. In the second state, the limiting part blocks the output end of the conveying groove, and the drippers in the placement groove can be clamped by the second clamp.

8. The positioning device for welding pre-drilled drip irrigation hoses according to claim 7, characterized in that, The clamping assembly further includes: A movable part is provided on the frame and can be moved and adjusted along the width direction of the water belt; The second lifting part is movably disposed on the movable part, and the second clamp is disposed on the second lifting part; The movable part can be moved to a first position so that the second clamp is located directly above the movement path of the clamping end, and to a second position directly above the placement slot when the limiting part is in the second state.

9. The positioning device for welding pre-drilled drip irrigation hoses according to claim 5, characterized in that, The drip head seat has an annular flange for conforming to the surface of the water hose, and the two sides of the delivery groove are provided with limiting grooves for the annular flange to be inserted.

10. The positioning device for welding pre-drilled drip irrigation hoses according to claim 5, characterized in that, The transport mechanism also includes: A vibratory feeder, the output end of which is connected to the input end of the conveying trough, is used to store the dripper holder and convey the dripper holder into the conveying trough.

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