A high-speed forming drip irrigation tape extrusion mechanism

Abstract

This utility model belongs to the field of drip irrigation tape processing technology and discloses a high-speed forming drip irrigation tape extrusion mechanism, including a support platform, an extrusion tube at the top of the support platform, a feed hopper installed above the outer surface of the extrusion tube, an extrusion device at one end of the extrusion tube, and a plastic forming mold fixedly connected to the other end of the extrusion tube. A mandrel is fixedly connected to the inner surface of the plastic forming mold through reinforcing ribs, and a cooling mechanism is provided on the outer surface of the plastic forming mold. The extrusion device includes a first vertical plate and a second vertical plate fixedly connected to the support platform. A power motor is fixedly connected to one end of the first vertical plate. By setting the extrusion assembly, this utility model makes the plastic melt flow more evenly and smoothly in the extrusion mechanism under the action of the power motor, reducing pressure loss and melt retention. This not only improves the extrusion speed and molding quality, but also reduces material degradation caused by melt retention and extends the service life of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of drip irrigation tape processing technology, specifically a high-speed forming drip irrigation tape extrusion mechanism. Background Technology

[0002] In the field of water-saving irrigation in agriculture, drip irrigation tape is widely used because it can precisely control water volume and improve water resource utilization. With the development of modern agriculture towards large-scale and intensive operations, higher demands are being placed on the production efficiency of drip irrigation tape. Especially under the centralized procurement needs of large-scale planting bases, how to achieve high-speed production of drip irrigation tape and increase yield per unit time has become an important goal pursued by the industry.

[0003] During use, the existing drip irrigation tape extrusion molding equipment suffers from uneven and unsmooth flow of the plastic melt within the extrusion mechanism, which easily leads to pressure loss and melt retention, resulting in slow extrusion speed and poor molding quality. Secondly, the extrusion mechanism lacks an efficient internal cooling structure, which cannot quickly remove the heat from the plastic melt, resulting in a slow drip irrigation tape molding process and low production line efficiency.

[0004] Therefore, a high-speed forming drip irrigation tape extrusion mechanism is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a high-speed forming drip irrigation tape extrusion mechanism, which not only improves the extrusion speed and forming quality, but also reduces material degradation caused by melt retention, extends equipment service life, reduces internal stress caused by temperature differences in the drip irrigation tape, and enhances the structural stability of the product.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed forming drip irrigation tape extrusion mechanism, comprising a support platform, an extrusion tube at the top of the support platform, a feeding hopper installed above the outer surface of the extrusion tube, an extrusion device at one end of the extrusion tube, and a molding die fixedly connected to the other end of the extrusion tube. A mandrel is fixedly connected to the inner surface of the molding die via reinforcing ribs, and a cooling mechanism is provided on the outer surface of the molding die. The extrusion device includes a first vertical plate and a second vertical plate fixedly connected to the support platform. A power motor is fixedly connected to one end of the first vertical plate. The output end of the power motor passes through the first vertical plate and is fixedly connected to a bidirectional screw. A movable frame is threaded onto the outer surface of the bidirectional screw. Two active rods are fixedly connected to one end of the movable frame. One end of each of the two active rods passes through the second vertical plate and one end of the extrusion tube and is fixedly connected to a rotating seat. One end of the bidirectional screw passes through the extrusion tube and is fixedly connected to a rotating shaft. The rotating seat is sleeved with the rotating shaft, and an extrusion frame is rotatably connected to the outer surface of the rotating seat.

[0007] Preferably, the inner surface of the movable frame is slidably connected to two slide rods, and the two ends of the two slide rods are respectively fixedly connected to vertical plate one and vertical plate two.

[0008] Preferably, the outer surface of the rotating shaft is fixedly connected with two limiting strips, and the inner surface of the extrusion frame is provided with a limiting groove that cooperates with the two limiting strips.

[0009] Preferably, one end of the extruder is fixedly connected to three stirring blades arranged in a ring array.

[0010] Preferably, the extrusion device further includes an extrusion screw, which is fixedly connected to the rotating shaft, and the outer surface of the extrusion screw is in contact with the inner surface of the extrusion tube.

[0011] Preferably, the cooling mechanism includes a cooling pipe fixedly sleeved on the plastic tube mold, an inlet pipe and an outlet pipe installed on the outer surface of the cooling pipe, a cooling box fixedly connected to the top of the support platform, a circulating water pump fixedly connected to one end of the cooling box, and one end of the circulating water pump fixedly connected to the inlet pipe.

[0012] Preferably, the inlet pipe is located below the outlet pipe, and the inlet pipe and outlet pipe are distributed in parallel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By setting up an extrusion assembly, this utility model enables the plastic melt to flow more evenly and smoothly in the extrusion mechanism under the action of a power motor, reducing pressure loss and melt retention. This not only improves the extrusion speed and molding quality, but also reduces material degradation caused by melt retention and extends the service life of the equipment.

[0015] 2. By setting up a cooling mechanism, this utility model enables the device to quickly remove the heat from the plastic melt under the action of a circulating water pump, thereby accelerating the forming process of the drip irrigation tape, significantly improving the extrusion forming speed of the drip irrigation tape, and increasing the production efficiency of the production line. At the same time, due to the improved cooling uniformity, the internal stress of the drip irrigation tape caused by temperature difference is reduced, and the structural stability of the product is enhanced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the extrusion device of this utility model;

[0018] Figure 3 This is a schematic diagram of the extrusion frame structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the extrusion tube of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the plastic tube mold of this utility model;

[0021] Figure 6 This is a schematic diagram of the cooling mechanism of this utility model.

[0022] In the diagram: 1. Support platform;

[0023] 2. Extrusion feed tube; 21. Extrusion screw;

[0024] 3. Feed hopper;

[0025] 4. Extrusion device;

[0026] 41. Vertical plate 1; 411. Slide rod; 412. Moving frame; 413. Power motor; 414. Drive rod; 415. Double-acting screw;

[0027] 42. Vertical plate two; 421. Rotating seat; 422. Rotating shaft; 423. Limiting strip; 424. Extruder; 425. Mixing blade; 426. Limiting groove;

[0028] 5. Molding tube mold; 51. Mandrel;

[0029] 6. Cooling mechanism; 61. Cooling tank; 62. Circulating water pump; 63. Inlet pipe; 64. Cooling pipe; 65. Outlet pipe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 6 As shown, this utility model provides a high-speed forming drip irrigation tape extrusion mechanism, including a support platform 1, an extrusion tube 2 at the top of the support platform 1, a heating wire on the inner surface of the extrusion tube 2, a feeding hopper 3 installed above the outer surface of the extrusion tube 2, an extrusion device 4 at one end of the extrusion tube 2, and a shaping tube mold 5 fixedly connected to the other end of the extrusion tube 2. A mandrel 51 is fixedly connected to the inner surface of the shaping tube mold 5 by reinforcing ribs, and a cooling mechanism 6 is provided on the outer surface of the shaping tube mold 5. By integrating the extrusion device 4, the shaping tube mold 5, and the cooling mechanism 6 with the support platform 1, an integrated structure is formed, reducing the installation error between the components. The mandrel 51 cooperates with the shaping tube mold 5 to ensure the precise forming of the tubular structure of the drip irrigation tape.

[0032] The extrusion device 4 includes a first vertical plate 41 and a second vertical plate 42 fixedly connected to the support platform 1. A power motor 413 is fixedly connected to one end of the first vertical plate 41. The output end of the power motor 413 passes through the first vertical plate 41 and is fixedly connected to a bidirectional screw 415. A movable frame 412 is threaded onto the outer surface of the bidirectional screw 415. Two active rods 414 are fixedly connected to one end of the movable frame 412. One end of each active rod 414 passes through the second vertical plate 42 and one end of the extrusion tube 2 and is fixedly connected to a rotating seat 421. One end of the bidirectional screw 415 passes through the extrusion tube 2 and is fixedly connected to a rotating shaft 422. The rotating seat 421 is sleeved with the rotating shaft 422. An extrusion frame 424 is rotatably connected to the outer surface of the rotating seat 421. Under the action of the power motor 413, the plastic melt flows more evenly and smoothly in the extrusion mechanism, reducing pressure loss and melt retention. This not only improves the extrusion speed and molding quality but also reduces material degradation caused by melt retention, extending the service life of the equipment.

[0033] Specifically, two slide rods 411 are slidably connected to the inner surface of the movable frame 412. The two ends of the two slide rods 411 are fixedly connected to the first vertical plate 41 and the second vertical plate 42, respectively. The slide rods 411 guide and limit the sliding of the movable frame 412, preventing the movable frame 412 from shifting or shaking under the drive of the bidirectional screw 415, ensuring that the action of the active rod 414 pushing the rotating seat 421 is smooth and accurate, and improving the reliability of the extrusion device 4.

[0034] like Figures 1 to 6 As shown, two limiting strips 423 are fixedly connected to the outer surface of the rotating shaft 422, and a limiting groove 426 is provided on the inner surface of the extruder 424 to cooperate with the two limiting strips 423. The cooperation between the limiting strips 423 and the limiting groove 426 ensures that the rotating shaft 422 can stably drive the extruder 424 to rotate synchronously when it rotates, avoids relative sliding between the two, and ensures that the extruder 424 has a stable and consistent mixing and pushing effect on the material.

[0035] Furthermore, one end of the extruder 424 is fixedly connected to three agitator blades 425 arranged in a ring. The agitator blades 425 arranged in a ring can fully agitate the plastic melt in the extrusion tube 2, making the melt mix more uniform, reducing molding defects caused by uneven material mixing, and improving the molding quality of the drip irrigation tape.

[0036] like Figures 1 to 6 As shown, the extrusion device 4 also includes an extrusion screw 21, which is fixedly connected to the rotating shaft 422. The outer surface of the extrusion screw 21 is in contact with the inner surface of the extrusion tube 2. The contact between the extrusion screw 21 and the inner surface of the extrusion tube 2 can efficiently push the plastic melt forward, reduce the pressure loss and retention of the melt during the conveying process, improve the extrusion speed, and ensure the continuity and stability of the melt conveying.

[0037] It is worth noting that the cooling mechanism 6 includes a cooling pipe 64 fixedly sleeved on the plastic tube mold 5. The outer surface of the cooling pipe 64 is equipped with an inlet pipe 63 and an outlet pipe 65. The top of the support platform 1 is fixedly connected to a cooling box 61. One end of the cooling box 61 is fixedly connected to a circulating water pump 62. One end of the circulating water pump 62 is fixedly connected to the inlet pipe 63. The cooling mechanism 6 drives the coolant to flow in the cooling pipe 64 through the circulating water pump 62, which can quickly remove the heat of the plastic melt in the plastic tube mold 5, accelerate the forming process of the drip irrigation tape, and improve the extrusion forming efficiency of the drip irrigation tape.

[0038] like Figures 1 to 6 As shown, the inlet pipe 63 is located below the outlet pipe 65, and the inlet pipe 63 and the outlet pipe 65 are parallel to each other. The inlet pipe 63 is located below the outlet pipe 65 and is parallel to each other, so that the coolant can fill the cooling pipe 64 from bottom to top, fully contact the plastic tube mold 5, improve the heat exchange efficiency, ensure the uniformity of cooling, and avoid deformation or quality problems of the drip irrigation tape due to uneven cooling.

[0039] The circulating water pump 62 and the power motor 413 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0040] Working principle and process: During operation, plastic raw material enters the extrusion tube 2 from the feed hopper 3. The heating wire on the inner surface of the extrusion tube 2 is activated to heat the raw material and melt it to form plastic melt. After the power motor 413 starts, it drives the bidirectional screw 415 to rotate, so that the moving frame 412 moves smoothly under the guidance and limiting action of the slide rod 411. The moving frame 412 pushes the rotating seat 421 through the active rod 414. On the other hand, the power motor 413 drives the rotating shaft 422 to rotate through the bidirectional screw 415. With the cooperation of the limiting strip 423 on the outer surface of the rotating shaft 422 and the limiting groove 426 on the inner surface of the extrusion frame 424, the rotating shaft 422 stably drives the extrusion frame 424 and the extrusion screw 21 to rotate synchronously. The three stirring blades 425 in a ring array at one end of the extrusion frame 424 rotate accordingly, which fully stirs the plastic melt in the extrusion tube 2, making the melt mixture more uniform. Meanwhile, the extrusion screw 21, which is in contact with the inner surface of the extrusion tube 2, efficiently pushes the plastic melt toward the molding die 5, reducing pressure loss and stagnation of the melt during the conveying process, and ensuring the continuity and stability of the melt conveying.

[0041] When the melt enters the molding die 5, a tubular structure is formed by the cooperation between the mandrel 51 on the inner surface of the molding die 5 and the inner wall of the molding die 5. At this time, the cooling mechanism 6 is activated, and the circulating water pump 62 at one end of the cooling tank 61 pumps the coolant in the cooling tank 61 into the cooling pipe 64 fixedly sleeved on the outer surface of the molding die 5 through the water inlet pipe 63. Since the water inlet pipe 63 is located below the water outlet pipe 65 and the two are parallel, the coolant can fill the cooling pipe 64 from bottom to top, fully contacting the molding die 5 and efficiently absorbing the heat of the tubular melt. Then the coolant flows back to the cooling tank 61 from the water outlet pipe 65, realizing circulating cooling. Under the cooling action, the tubular melt quickly solidifies and forms a drip irrigation tape, completing the entire high-speed extrusion molding process.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed forming drip irrigation tape extrusion mechanism, comprising a support platform (1), characterized in that: The top of the support platform (1) has an extrusion tube (2), the inner surface of the extrusion tube (2) is provided with a heating wire, the upper surface of the outer surface of the extrusion tube (2) is provided with a feeding hopper (3), one end of the extrusion tube (2) is provided with an extrusion device (4), the other end of the extrusion tube (2) is fixedly connected to a plastic tube mold (5), the inner surface of the plastic tube mold (5) is fixedly connected with a core rod (51) by reinforcing ribs, and the outer surface of the plastic tube mold (5) is provided with a cooling mechanism (6). The extrusion device (4) includes a first vertical plate (41) and a second vertical plate (42) fixedly connected to the support platform (1). A power motor (413) is fixedly connected to one end of the first vertical plate (41). The output end of the power motor (413) passes through the first vertical plate (41) and is fixedly connected to a bidirectional screw (415). A movable frame (412) is threaded onto the outer surface of the bidirectional screw (415). Two active rods (414) are fixedly connected to one end of the movable frame (412). One end of each of the two active rods (414) passes through the second vertical plate (42) and one end of the extrusion tube (2) and is fixedly connected to a rotating seat (421). One end of the bidirectional screw (415) passes through the extrusion tube (2) and is fixedly connected to a rotating shaft (422). The rotating seat (421) is sleeved with the rotating shaft (422). An extrusion frame (424) is rotatably connected to the outer surface of the rotating seat (421).

2. A high speed forming drip irrigation tape extrusion mechanism according to claim 1 characterized in that: The inner surface of the movable frame (412) is slidably connected to two slide rods (411), and the two ends of the two slide rods (411) are fixedly connected to the first vertical plate (41) and the second vertical plate (42) respectively.

3. The high-speed forming drip irrigation tape extrusion mechanism according to claim 1, characterized in that: Two limiting strips (423) are fixedly connected to the outer surface of the rotating shaft (422), and a limiting groove (426) is provided on the inner surface of the extrusion frame (424) to cooperate with the two limiting strips (423).

4. A high speed forming drip irrigation tape extrusion mechanism according to claim 3, characterized in that: Three stirring blades (425) arranged in a ring are fixedly connected to one end of the extruder (424).

5. A high speed forming drip irrigation tape extrusion mechanism according to claim 1 characterized in that: The extrusion device (4) further includes an extrusion screw (21), which is fixedly connected to the rotating shaft (422), and the outer surface of the extrusion screw (21) is in contact with the inner surface of the extrusion tube (2).

6. The high-speed forming drip irrigation tape extrusion mechanism according to claim 1, characterized in that: The cooling mechanism (6) includes a cooling pipe (64) fixedly sleeved on the plastic tube mold (5). The outer surface of the cooling pipe (64) is equipped with an inlet pipe (63) and an outlet pipe (65). The top of the support platform (1) is fixedly connected to a cooling box (61). One end of the cooling box (61) is fixedly connected to a circulating water pump (62). One end of the circulating water pump (62) is fixedly connected to the inlet pipe (63).

7. A high speed forming drip irrigation tape extrusion mechanism according to claim 6, characterized in that: The inlet pipe (63) is located below the outlet pipe (65), and the inlet pipe (63) and the outlet pipe (65) are distributed in parallel.

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