Drip irrigation pipe extrusion molding device

Abstract

The present invention is applicable to the technical field of plastic pipe forming and processing, and provides a drip irrigation pipe extrusion forming device, comprising: a heating box and a material guide pipe arranged in the heating box; an extrusion pipe assembly for conveying raw materials and extruding the raw materials through an extrusion channel, the extrusion pipe assembly comprising a first extrusion pipe, a second extrusion pipe and a third extrusion pipe; a follower assembly, the follower assembly is used to realize the second extrusion pipe following the third extrusion pipe to rotate and to realize the first extrusion pipe following the second extrusion pipe to rotate; and a control mechanism. The present invention avoids the problem that the existing extrusion forming device is prone to sparse and uneven distribution of raw materials in the feeding pipe during the feeding process, and cannot be adjusted in time, which easily leads to defects on the side wall of the extruded hose, thereby affecting the processing quality of the drip irrigation pipe through the coordinated arrangement of the extrusion pipe assembly, the follower assembly and the control mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipe forming and processing, in particular to a drip irrigation pipe extrusion forming device. Background Art

[0002] Drip irrigation pipes are a key component of drip irrigation systems, used to deliver water and nutrients needed by crops directly to the soil near the roots of crops. They effectively improve water utilization efficiency and crop yields by precisely controlling the supply of water and nutrients.

[0003] Most of the existing extrusion molding devices adopt the traditional spiral feeding structure, which is prone to sparse and uneven distribution of raw materials in the feeding pipe during the feeding process, and cannot be adjusted in time, which easily leads to defects on the side wall of the extruded hose, affecting the subsequent normal processing, and further affecting the processing quality of the drip irrigation pipe. Therefore, in view of the above situation, it is urgent to provide a drip irrigation pipe extrusion molding device to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide a drip irrigation pipe extrusion molding device, aiming to solve the problems in the above-mentioned background technology.

[0005] The present invention is implemented in this way: a drip irrigation pipe extrusion molding device comprises:

[0006] A heating box and a material guide pipe arranged in the heating box, the heating box is also provided with a feed pipe connected to the material guide pipe, and an extrusion channel is provided at one end of the material guide pipe away from the feed pipe, a heating module is provided in the heating box, and transparent observation windows are provided on the side walls of the heating box and the material guide pipe;

[0007] An extrusion tube assembly for conveying raw materials and extruding the raw materials through an extrusion channel, the extrusion tube assembly comprising a first extrusion tube, a second extrusion tube and a third extrusion tube, the first extrusion tube being rotatably mounted in a guide tube, the second extrusion tube and the first extrusion tube, as well as the third extrusion tube and the second extrusion tube being rotatably connected, and the first extrusion tube, the second extrusion tube and the third extrusion tube being all provided with spiral blades, one end of the third extrusion tube away from the second extrusion tube extending into the extrusion channel, and a side wall thereof being parallel to an inner wall of the extrusion channel, and the guide tube being further provided with a driving assembly for driving the third extrusion tube to rotate;

[0008] A follower assembly, the follower assembly is used to enable the second extrusion tube to follow the third extrusion tube to rotate and to enable the first extrusion tube to follow the second extrusion tube to rotate;

[0009] and a control mechanism for adjusting the rotation speed of the first extrusion tube and the second extrusion tube.

[0010] As a further solution of the present invention: the driving assembly comprises:

[0011] An F-shaped support frame fixedly mounted on the material guide tube, wherein a drive shaft is rotatably mounted on the F-shaped support frame, and an end of the drive shaft passes through the first extrusion tube and the second extrusion tube and is fixedly connected to the first guide tube;

[0012] And a first motor for driving the driving shaft to rotate, wherein the first motor is fixedly mounted on the F-shaped support frame, and the output shaft of the first motor is fixedly connected to the driving shaft.

[0013] As a further solution of the present invention: the follower assembly includes:

[0014] A driving block, wherein the driving block is provided in two groups, wherein one group of driving blocks is fixedly installed in the first conduit, and the other group of driving blocks is fixedly installed in the second extrusion tube;

[0015] Guide bars, wherein a plurality of guide bars are fixedly installed in the first extrusion tube and the second extrusion tube;

[0016] Follower blocks, wherein two groups of follower blocks are provided, one group of follower blocks is slidably installed in the second extrusion tube, and the other group of follower blocks is slidably installed in the first extrusion tube, and both groups of follower blocks are provided with grooves slidably connected to the guide strips;

[0017] A linkage block, wherein the linkage block is fixedly mounted on the driven block, and a ring groove is provided on the driving block for slidingly cooperating with the linkage block;

[0018] And a pressing block slidably installed in the annular groove of the driving block, wherein a return spring for elastically supporting the pressing block is also arranged in the driving block, and the pressing block is a right-angled triangle structure.

[0019] As a further solution of the present invention: the control mechanism comprises:

[0020] A speed change tube, the speed change tube is rotatably mounted on the drive shaft, and the speed change tube extends into the first extruded tube and the second extruded tube, and the speed change tube and the first extruded tube and the speed change tube and the second extruded tube are both rotatably connected;

[0021] A second motor fixedly mounted on the F-shaped support frame, wherein the second motor is connected to the speed change tube via a gear set;

[0022] Baffles, wherein the baffles are fixedly installed in the first extrusion tube and the second extrusion tube in multiple groups;

[0023] A first control component is arranged in the first extrusion tube and a second control component is arranged in the second extrusion tube. The speed change tube is also connected with a pneumatic component for driving the first control component and the second control component to work.

[0024] As a further solution of the present invention: the first control component and the second control component have the same structure.

[0025] As a further solution of the present invention: the first control component includes:

[0026] A first annular bracket, wherein the first annular bracket is fixedly mounted on the speed change tube, and a plurality of first push rods are rotatably mounted on the first annular bracket;

[0027] A second annular bracket is slidably mounted on the speed change tube and can rotate along with the speed change tube. A plurality of second push rods are also rotatably mounted on the second annular bracket.

[0028] A guide frame, wherein the guide frame is slidably mounted on the speed change tube, and the guide frame can rotate along with the speed change tube;

[0029] A stopper, wherein the stopper is slidably mounted on the guide frame in multiple groups, and two groups of support shafts are fixedly mounted on the stopper, wherein one group of support shafts is rotatably connected to the first push rod, and the other group of support shafts is rotatably connected to the second push rod;

[0030] A first linkage frame, wherein the first linkage frame is slidably mounted on the speed change tube and the first linkage frame is fixedly connected to the second annular bracket;

[0031] A second linkage frame, wherein the second linkage frame is rotatably mounted on the driven block, the first linkage frame is rotatably connected to the second linkage frame, and the driven block and the first linkage frame can both follow the second linkage frame to move in the length direction of the speed change tube;

[0032] And a translation component used for driving the second linkage frame to move.

[0033] As a further solution of the present invention: the translation assembly includes:

[0034] A linkage rod, wherein the linkage rod is fixedly mounted on the second linkage frame, and a round hole for the linkage rod to pass through is opened on one set of the blocking bars, and the linkage rod and the round hole are slidably matched;

[0035] A compression box, wherein the compression box is fixedly installed in the first extrusion tube, and a piston plate fixedly connected to the linkage rod is slidably installed in the compression box;

[0036] A spring for elastically supporting the piston plate, wherein the spring is arranged in the compression box;

[0037] and an air guide component, which is used for communication between the compression box and the pneumatic component.

[0038] As a further solution of the present invention: the air guide component comprises:

[0039] A second air guide ring fixedly mounted on the speed change tube, wherein the second air guide ring is provided with a through hole 1 connected to the pneumatic component;

[0040] A second annular movable plate, wherein the second annular movable plate is slidably mounted on the second air guide ring, and a closed air guide cavity is formed between the second annular movable plate and the second air guide ring;

[0041] A first air guide ring, wherein the first air guide ring is fixedly installed in the first extrusion tube, and the first air guide ring is connected to the compression box through a first conduit;

[0042] A first annular movable plate, wherein the first annular movable plate is slidably mounted on the first air guide ring, and a closed air guide cavity 2 is formed between the first annular movable plate and the first air guide ring;

[0043] And a second conduit for connecting the sealed air guide cavity 1 and the sealed air guide cavity 2, wherein the second conduit is arranged between the first annular movable plate and the second annular movable plate, and multiple groups of the second conduits are arranged.

[0044] As a further solution of the present invention: the pneumatic component comprises:

[0045] An air guide tube, wherein a cavity 1 for slidingly mounting on the air guide tube is provided in the side wall of the speed change tube, and the air guide tube can rotate with the speed change tube, and a first connecting hole and a second connecting hole are provided on the side wall of the speed change tube, respectively connected with the second air guide ring in the first extruded tube and the second air guide ring in the second extruded tube, and a cavity 2 for conveying gas is provided in the side wall of the air guide tube;

[0046] A flow guide frame used for conveying gas into the second cavity of the air guide pipe, wherein the flow guide frame is rotatably connected to the air guide pipe, and an air inlet pipe is also arranged on the flow guide frame;

[0047] A telescopic cylinder for driving the guide frame to move, wherein the telescopic cylinder is arranged on the material guide pipe, and the air guide pipe can move along with the guide frame in the telescopic direction of the telescopic cylinder;

[0048] And a first air guide hole and a second air guide hole are opened on the side wall of the air guide pipe.

[0049] Compared with the prior art, the present invention has the following beneficial effects: the driving component drives the third extrusion tube to rotate, and the follower component can realize that the second extrusion tube follows the third extrusion tube to rotate, and the first extrusion tube follows the second extrusion tube to rotate. By the synchronous rotation of the first extrusion tube, the second extrusion tube and the third extrusion tube, the melted raw material can be driven to be extruded to one side of the extrusion channel, and extruded and formed through the end of the third extrusion tube and the extrusion channel; the observation window is used to facilitate real-time observation of the conveying situation of the raw material in the guide tube. When the raw material at the tail or middle of the guide tube is too sparse, the third extrusion tube maintains the original speed unchanged, and the control mechanism can be used to independently The first extrusion tube is accelerated, or the first extrusion tube and the second extrusion tube are accelerated, thereby accelerating the melted raw material to move to one side of the third extrusion tube, so that the middle or tail of the guide tube is filled with raw materials, effectively avoiding the problem of poor molding quality caused by sparse and uneven raw materials; through the coordinated arrangement of the extrusion tube assembly, the follower assembly and the control mechanism, it is avoided that most of the existing extrusion molding devices adopt the traditional spiral feeding structure, which is prone to sparse and uneven distribution of raw materials in the feeding tube during the feeding process, and cannot be adjusted in time, which is easy to cause defects on the side wall of the extruded hose, affecting the subsequent normal processing, and then affecting the processing quality of the drip irrigation tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a structural schematic diagram of the present invention.

[0051] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure.

[0052] Figure 3 It is a schematic cross-sectional structural diagram of the extrusion tube assembly in the present invention.

[0053] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure.

[0054] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0055] Figure 6 It is a schematic cross-sectional view of the connection between the speed change tube and the first control assembly in the present invention.

[0056] Figure 7 It is a schematic cross-sectional view of the connection between the speed change tube and the second control assembly in the present invention.

[0057] Figure 8 It is a schematic diagram of the main cross-sectional structure of the compression box in the present invention.

[0058] Fig. 9 It is a schematic diagram of the side cross-sectional structure of the air guide component in the present invention.

[0059] Fig.10 It is a schematic diagram of the structure of the follower assembly in the present invention.

[0060] Fig.11 for Fig.10 Schematic diagram of the right view structure.

[0061] In the attached drawings: 1-heating box, 2-material guide pipe, 3-first extrusion pipe, 4-F-shaped support frame, 5-feeding pipe, 6-extrusion channel, 7-first guide tube, 8-third extrusion pipe, 9-second extrusion pipe, 10-speed tube, 11-air guide pipe, 12-driving shaft, 13-first motor, 14-telescopic cylinder, 15-stop bar, 16-compression box, 17-driving block, 18-driven block, 19-guide bar, 20-first air guide ring, 21-second motor, 22-gear set, 23-intake pipe, 24-guide frame , 25-second air guide ring, 26-second annular movable plate, 27-second conduit, 28-first annular movable plate, 29-first annular bracket, 30-first push rod, 31-stopper, 32-guide frame, 33-second push rod, 34-second annular bracket, 35-first linkage frame, 36-second linkage frame, 37-linkage rod, 38-first connecting hole, 39-first air guide hole, 40-linkage block, 41-second connecting hole, 42-second air guide hole, 43-pressure block, 44-spring, 45-piston plate. DETAILED DESCRIPTION

[0062] 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. The specific implementation of the present invention is described in detail below in combination with specific embodiments.

[0063] See also Figure 1-Figure 11 , an embodiment of the present invention provides a drip irrigation pipe extrusion molding device, the drip irrigation pipe extrusion molding device comprising:

[0064] A heating box 1 and a material guide pipe 2 arranged in the heating box 1, the heating box 1 is also provided with a feed pipe 5 connected to the material guide pipe 2, and an extrusion channel 6 is provided at one end of the material guide pipe 2 away from the feed pipe 5, a heating module is arranged in the heating box 1, and transparent observation windows are arranged on the side walls of the heating box 1 and the material guide pipe 2; it is convenient to observe the transportation of raw materials in the material guide pipe 2;

[0065] An extrusion tube assembly for conveying raw materials and extruding the raw materials through an extrusion channel 6, the extrusion tube assembly comprising a first extrusion tube 3, a second extrusion tube 9 and a third extrusion tube 8, the first extrusion tube 3 being rotatably mounted in a guide tube 2, the second extrusion tube 9 and the first extrusion tube 3, as well as the third extrusion tube 8 and the second extrusion tube 9 being rotatably connected, and the first extrusion tube 3, the second extrusion tube 9 and the third extrusion tube 8 being all provided with spiral blades, the end of the third extrusion tube 8 away from the second extrusion tube 9 extending into the extrusion channel 6, and the side wall being parallel to the inner wall of the extrusion channel 6, and the guide tube 2 being further provided with a driving assembly for driving the third extrusion tube 8 to rotate;

[0066] A follower assembly, which is used to enable the second extrusion tube 9 to follow the third extrusion tube 8 to rotate and to enable the first extrusion tube 3 to follow the second extrusion tube 9 to rotate;

[0067] And a control mechanism for adjusting the rotation speed of the first extrusion tube 3 and the second extrusion tube 9.

[0068] In the embodiment of the present invention, when in use, the molten or unmelted raw material is introduced into the guide tube 2 through the feed pipe 5, and the heating module in the heating box 1 can be used to heat the guide tube 2, so as to heat the unmelted raw material in the guide tube 2, so that the raw material is melted in the guide tube 2, and the driving component drives the third extrusion tube 8 to rotate, and the second extrusion tube 9 can be used to rotate with the third extrusion tube 8 by using the follower component, and the first extrusion tube 3 can rotate with the second extrusion tube 9, and the first extrusion tube 3, the second extrusion tube 9 and the third extrusion tube 8 can be driven to extrude the melted raw material to one side of the extrusion channel 6 by the synchronous rotation of the first extrusion tube 3, the second extrusion tube 9 and the third extrusion tube 8, and the extrusion tube 6 is extruded through the end of the third extrusion tube 8 and the extrusion channel 6. The extruded hose is further processed by the subsequent processing equipment, which is not specifically limited here; the observation window is used to facilitate real-time observation of the conveying situation of the raw material in the guide tube 2. When the tail or middle of the guide tube 2 When the raw material is too sparse, the third extrusion tube 8 maintains the original speed unchanged, and the control mechanism can accelerate the first extrusion tube 3 alone, or accelerate the first extrusion tube 3 and the second extrusion tube 9, thereby accelerating the melted raw material to move to one side of the third extrusion tube 8, so that the middle or tail of the guide tube 2 is filled with raw materials, effectively avoiding the problem of poor molding quality caused by sparse and uneven raw materials; the heating module in the heating box 1 can be an electric heating wire or other forms of heating structure, which is not specifically limited here; compared with the prior art, the present invention avoids the problem that most of the existing extrusion molding devices adopt traditional spiral feeding structures through the coordinated arrangement of the extrusion tube assembly, the follower assembly and the control mechanism. During the feeding process, the raw materials in the feeding tube are prone to sparse and uneven distribution, and cannot be adjusted in time, which easily leads to defects on the side wall of the extruded hose, affecting the subsequent normal processing, and thus affecting the processing quality of the drip irrigation tube.

[0069] In one embodiment of the present invention, see Figure 1-Figure 11 , the driving assembly comprises:

[0070] An F-shaped support frame 4 is fixedly mounted on the material guide tube 2, and a drive shaft 12 is rotatably mounted on the F-shaped support frame 4, and the end of the drive shaft 12 passes through the first extrusion tube 3 and the second extrusion tube 9 and is fixedly connected to the first conduit 7;

[0071] and a first motor 13 for driving the driving shaft 12 to rotate, wherein the first motor 13 is fixedly mounted on the F-shaped support frame 4, and an output shaft of the first motor 13 is fixedly connected to the driving shaft 12;

[0072] The follower assembly comprises:

[0073] The driving blocks 17 are provided in two groups, wherein one group of the driving blocks 17 is fixedly installed in the first conduit 7, and the other group of the driving blocks 17 is fixedly installed in the second extrusion tube 9;

[0074] Guide bars 19, wherein a plurality of guide bars 19 are fixedly installed in the first extrusion tube 3 and the second extrusion tube 9;

[0075] Follower blocks 18, wherein two groups of follower blocks 18 are provided, wherein one group of follower blocks 18 is slidably installed in the second extrusion tube 9, and the other group of follower blocks 18 is slidably installed in the first extrusion tube 3, and both groups of follower blocks 18 are provided with grooves slidably connected to the guide strips 19;

[0076] The linkage block 40 is fixedly mounted on the driven block 18, and the driving block 17 is provided with an annular groove for slidingly cooperating with the linkage block 40;

[0077] and a pressing block 43 slidably mounted in the annular groove of the driving block 17, wherein the driving block 17 is further provided with a return spring (not shown in the figure) for elastically supporting the pressing block 43, and the pressing block 43 is a right-angled triangle structure;

[0078] When the right-angled surface of the pressing block 43 contacts the linkage block 40 , the spiral blades on the first extrusion tube 3 , the second extrusion tube 9 and the third extrusion tube 8 form a complete spiral structure.

[0079] In this embodiment, the first motor 13 can drive the third extrusion tube 8 to rotate by driving the driving shaft 12 to rotate, and the driving block 17 can use the pressing block 43 to push the linkage block 40 to move clockwise in the annular groove by following the rotation of the third extrusion tube 8 or the second extrusion tube 9 (clockwise direction refers to the attached Fig.10), thereby driving the driven block 18 to rotate, realizing the linkage between the second extrusion tube 9 and the third extrusion tube 8 and between the first extrusion tube 3 and the second extrusion tube 9. When the rotation speed of the driven block 18 is greater than the rotation speed of the driving block 17, the linkage block 40 will use the inclined surface on the pressure block 43 to push the pressure block 43 to press the return spring, so that the pressure block 43 moves toward the inside of the driving block 17 to prevent the pressure block 43 from affecting the movement of the linkage block 40 in the annular groove. At the same time, when the linkage block 40 is separated from the pressure block 43, the return spring will push the pressure block 43 to reset. A limiting plate for limiting the pressure block 43 is provided in the driving block 17. Each time the pressure block 43 is reset, it can collide with the limiting plate, and the vibration generated can be transmitted outward, which is convenient for making the raw materials evenly distributed in the guide tube 2, further improving the molding quality.

[0080] In one embodiment of the present invention, see Figure 1-Figure 11 , the control mechanism comprises:

[0081] A shift tube 10, wherein the shift tube 10 is rotatably mounted on the drive shaft 12, and the shift tube 10 extends into the first extruded tube 3 and the second extruded tube 9, and the shift tube 10 and the first extruded tube 3 and the shift tube 10 and the second extruded tube 9 are both rotatably connected;

[0082] A second motor 21 fixedly mounted on the F-shaped support frame 4, wherein the second motor 21 is connected to the speed change tube 10 via a gear set 22;

[0083] Baffles 15, wherein the baffles 15 are fixedly installed in the first extrusion tube 3 and the second extrusion tube 9 in multiple groups;

[0084] and a first control assembly disposed in the first extrusion tube 3 and a second control assembly disposed in the second extrusion tube 9. The speed change tube 10 is also connected to a pneumatic assembly for driving the first control assembly and the second control assembly to work;

[0085] The first control component and the second control component have the same structure; the first control component is taken as an example for further explanation, and the first control component includes:

[0086] A first annular bracket 29, wherein the first annular bracket 29 is fixedly mounted on the air duct 11, and a plurality of first push rods 30 are rotatably mounted on the first annular bracket 29;

[0087] A second annular bracket 34 is slidably mounted on the speed change tube 10 and can rotate along with the speed change tube 10. A plurality of second push rods 33 are also rotatably mounted on the second annular bracket 34.

[0088] A guide frame 32, wherein the guide frame 32 is slidably mounted on the shift tube 10, and the guide frame 32 can rotate along with the shift tube 10;

[0089] The stopper 31 is slidably mounted on the guide frame 32 in multiple groups, and two groups of support shafts are fixedly mounted on the stopper 31, one group of support shafts is rotatably connected to the first push rod 30, and the other group of support shafts is rotatably connected to the second push rod 33;

[0090] A first linkage frame 35, wherein the first linkage frame 35 is slidably mounted on the speed change tube 10, and the first linkage frame 35 is fixedly connected to the second annular bracket 34;

[0091] The second linkage frame 36 is rotatably mounted on the driven block 18, the first linkage frame 35 is rotatably connected to the second linkage frame 36, and the driven block 18 and the first linkage frame 35 can move along with the second linkage frame 36 in the length direction of the speed change tube 10;

[0092] and a translation assembly for driving the second linkage frame 36 to move;

[0093] The translation assembly comprises:

[0094] A linkage rod 37, wherein the linkage rod 37 is fixedly mounted on the second linkage frame 36, and a round hole for the linkage rod 37 to pass through is opened on one set of the blocking bars 15, and the linkage rod 37 is slidably matched with the round hole;

[0095] A compression box 16, wherein the compression box 16 is fixedly installed in the first extrusion tube 3, and a piston plate 45 fixedly connected to the linkage rod 37 is slidably installed in the compression box 16;

[0096] A spring 44 for elastically supporting the piston plate 45, wherein the spring 44 is disposed in the compression box 16;

[0097] and an air guide assembly, the air guide assembly being used for communication between the compression box 16 and the pneumatic assembly;

[0098] The air guide component comprises:

[0099] A second air guide ring 25 fixedly mounted on the speed change tube 10, wherein the second air guide ring 25 is provided with a through hole 1 connected to the pneumatic component;

[0100] A second annular movable plate 26, wherein the second annular movable plate 26 is slidably mounted on the second air guide ring 25, and a closed air guide cavity 1 is formed between the second annular movable plate 26 and the second air guide ring 25;

[0101] A first air guide ring 20, wherein the first air guide ring 20 is fixedly installed in the first extrusion tube 3, and the first air guide ring 20 is connected to the compression box 16 through a first conduit 7;

[0102] A first annular movable plate 28, wherein the first annular movable plate 28 is slidably mounted on the first air guide ring 20, and a closed air guide cavity 2 is formed between the first annular movable plate 28 and the first air guide ring 20;

[0103] and a second conduit 27 for connecting the sealed air guide cavity 1 and the sealed air guide cavity 2, wherein the second conduit 27 is disposed between the first annular movable plate 28 and the second annular movable plate 26, and a plurality of second conduits 27 are provided;

[0104] The pneumatic assembly comprises:

[0105] The air guide tube 11, a cavity 1 for slidingly mounting on the air guide tube 11 is provided in the side wall of the speed change tube 10, and the air guide tube 11 can rotate with the speed change tube 10, and a first connecting hole 38 and a second connecting hole 41 are provided on the side wall of the speed change tube 10, which are respectively connected to the second air guide ring 25 in the first extruded tube 3 and the second air guide ring 25 in the second extruded tube 9, and a cavity 2 for conveying gas is provided in the side wall of the air guide tube 11;

[0106] A flow guide frame 24 for conveying gas into the second cavity of the air guide pipe 11, wherein the flow guide frame 24 is rotatably connected to the air guide pipe 11, and an air inlet pipe 23 is also provided on the flow guide frame 24;

[0107] A telescopic cylinder 14 for driving the guide frame 24 to move, wherein the telescopic cylinder 14 is disposed on the material guide pipe 2, and the air guide pipe 11 can move along with the guide frame 24 in the telescopic direction of the telescopic cylinder 14;

[0108] And a first air guide hole 39 and a second air guide hole 42 are opened on the side wall of the air guide tube 11; when the first air guide hole 39 is connected with the first connecting hole 38, the second air guide hole 42 is not connected with the second connecting hole 41, and when the second air guide hole 42 is connected with the second connecting hole 41, the first air guide hole 39 is not connected with the first connecting hole 38.

[0109] In this embodiment, when in use, the air intake pipe 23 is connected to the external air source; the second motor 21 and the gear set 22 are matched to drive the speed change tube 10 to rotate; the telescopic cylinder 14 can be used to drive the guide frame 24 to move, and the guide frame 24 will drive the air guide pipe 11 to move. When the first air guide hole 39 is connected to the first connecting hole 38, it can drive the first control component in the first extrusion tube 3 to work, and when the second air guide hole 42 is connected to the second connecting hole 41, it can drive the second control component in the second extrusion tube 9 to work, so as to realize separate control; after the gas enters the second air guide ring 25, the second conduit 27 can be used to introduce the gas into the first air guide ring 20, and the gas in the first air guide ring 20 enters the compression box 16 through the first conduit 7, thereby pushing the piston The plate 45 presses the spring 44, and the piston plate 45 can drive the linkage rod 37 to move. The second linkage frame 36 and the first linkage frame 35 are arranged in coordination, so that the second annular bracket 34 and the driven block 18 can follow the linkage rod 37 to move toward the side of the guide frame 32, so that the driving block 17 and the driven block 18 are separated, and the distance between the first annular bracket 29 and the second annular bracket 34 can be changed, so that the second annular bracket 34 and the guide frame 32 can move toward the side of the first annular bracket 29, thereby driving the block 31 to slide on the guide frame 32. When the block 31 and the stop bar 15 conflict with each other, the first extrusion tube 3 or the second extrusion tube 9 can be realized to follow the rotation of the speed change tube 10, thereby realizing the adjustment of the rotation speed of the first extrusion tube 3 or the second extrusion tube 9.

[0110] In the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drip irrigation pipe extrusion molding device, comprising a heating box and a material guide pipe arranged in the heating box, the heating box is also provided with a feed pipe connected to the material guide pipe, and an extrusion channel is provided at one end of the material guide pipe away from the feed pipe, a heating module is provided in the heating box, and transparent observation windows are provided on the side walls of the heating box and the material guide pipe, characterized in that: Also includes: An extrusion tube assembly for conveying raw materials and extruding the raw materials through an extrusion channel, the extrusion tube assembly comprising a first extrusion tube, a second extrusion tube and a third extrusion tube, the first extrusion tube being rotatably mounted in a guide tube, the second extrusion tube and the first extrusion tube, as well as the third extrusion tube and the second extrusion tube being rotatably connected, and the first extrusion tube, the second extrusion tube and the third extrusion tube being all provided with spiral blades, one end of the third extrusion tube away from the second extrusion tube extending into the extrusion channel, and a side wall thereof being parallel to an inner wall of the extrusion channel, and the guide tube being further provided with a driving assembly for driving the third extrusion tube to rotate; A follower assembly, the follower assembly is used to enable the second extrusion tube to follow the third extrusion tube to rotate and to enable the first extrusion tube to follow the second extrusion tube to rotate; and a control mechanism for adjusting the rotational speed of the first extrusion tube and the second extrusion tube; The drive assembly comprises: An F-shaped support frame fixedly mounted on the material guide tube, wherein a drive shaft is rotatably mounted on the F-shaped support frame, and an end of the drive shaft passes through the first extrusion tube and the second extrusion tube and is fixedly connected to the first guide tube; and a first motor for driving the driving shaft to rotate, wherein the first motor is fixedly mounted on the F-shaped support frame, and an output shaft of the first motor is fixedly connected to the driving shaft; The follower assembly comprises: A driving block, wherein the driving block is provided in two groups, wherein one group of driving blocks is fixedly installed in the first conduit, and the other group of driving blocks is fixedly installed in the second extrusion tube; Guide bars, wherein a plurality of guide bars are fixedly installed in the first extrusion tube and the second extrusion tube; Follower blocks, wherein two groups of follower blocks are provided, one group of follower blocks is slidably installed in the second extrusion tube, and the other group of follower blocks is slidably installed in the first extrusion tube, and both groups of follower blocks are provided with grooves slidably connected to the guide strips; A linkage block, wherein the linkage block is fixedly mounted on the driven block, and a ring groove is provided on the driving block for slidingly cooperating with the linkage block; and a pressing block slidably mounted in the annular groove of the driving block, wherein a return spring for elastically supporting the pressing block is also arranged in the driving block, and the pressing block is a right-angled triangle structure; The control mechanism comprises: A speed change tube, the speed change tube is rotatably mounted on the drive shaft, and the speed change tube extends into the first extruded tube and the second extruded tube, and the speed change tube and the first extruded tube and the speed change tube and the second extruded tube are both rotatably connected; A second motor fixedly mounted on the F-shaped support frame, wherein the second motor is connected to the speed change tube via a gear set; Baffles, wherein the baffles are fixedly installed in the first extrusion tube and the second extrusion tube in multiple groups; and a first control assembly disposed in the first extrusion tube and a second control assembly disposed in the second extrusion tube, wherein the speed change tube is further connected with a pneumatic assembly for driving the first control assembly and the second control assembly to work; The first control component and the second control component have the same structure; The first control component comprises: A first annular bracket, wherein the first annular bracket is fixedly mounted on the speed change tube, and a plurality of first push rods are rotatably mounted on the first annular bracket; A second annular bracket is slidably mounted on the speed change tube and can rotate along with the speed change tube. A plurality of second push rods are also rotatably mounted on the second annular bracket. A guide frame, wherein the guide frame is slidably mounted on the speed change tube, and the guide frame can rotate along with the speed change tube; A stopper, wherein the stopper is slidably mounted on the guide frame in multiple groups, and two groups of support shafts are fixedly mounted on the stopper, wherein one group of support shafts is rotatably connected to the first push rod, and the other group of support shafts is rotatably connected to the second push rod; A first linkage frame, wherein the first linkage frame is slidably mounted on the speed change tube and the first linkage frame is fixedly connected to the second annular bracket; A second linkage frame, wherein the second linkage frame is rotatably mounted on the driven block, the first linkage frame is rotatably connected to the second linkage frame, and the driven block and the first linkage frame can both follow the second linkage frame to move in the length direction of the speed change tube; And a translation component used for driving the second linkage frame to move.

2. The drip irrigation pipe extrusion molding device according to claim 1, characterized in that: The translation assembly comprises: A linkage rod, wherein the linkage rod is fixedly mounted on the second linkage frame, and a round hole for the linkage rod to pass through is opened on one set of the blocking bars, and the linkage rod and the round hole are slidably matched; A compression box, wherein the compression box is fixedly installed in the first extrusion tube, and a piston plate fixedly connected to the linkage rod is slidably installed in the compression box; A spring for elastically supporting the piston plate, wherein the spring is arranged in the compression box; and an air guide component, which is used for communication between the compression box and the pneumatic component.

3. The drip irrigation pipe extrusion molding device according to claim 2, characterized in that: The air guide component comprises: A second air guide ring fixedly mounted on the speed change tube, wherein the second air guide ring is provided with a through hole 1 connected to the pneumatic component; A second annular movable plate, wherein the second annular movable plate is slidably mounted on the second air guide ring, and a closed air guide cavity is formed between the second annular movable plate and the second air guide ring; A first air guide ring, wherein the first air guide ring is fixedly installed in the first extrusion tube, and the first air guide ring is connected to the compression box through a first conduit; A first annular movable plate, wherein the first annular movable plate is slidably mounted on the first air guide ring, and a closed air guide cavity 2 is formed between the first annular movable plate and the first air guide ring; And a second conduit for connecting the sealed air guide cavity 1 and the sealed air guide cavity 2, wherein the second conduit is arranged between the first annular movable plate and the second annular movable plate, and multiple groups of the second conduits are arranged.

4. The drip irrigation pipe extrusion molding device according to claim 3, characterized in that: The pneumatic assembly comprises: An air guide tube, wherein a cavity 1 for slidingly mounting on the air guide tube is provided in the side wall of the speed change tube, and the air guide tube can rotate with the speed change tube, and a first connecting hole and a second connecting hole are provided on the side wall of the speed change tube, respectively connected with the second air guide ring in the first extruded tube and the second air guide ring in the second extruded tube, and a cavity 2 for conveying gas is provided in the side wall of the air guide tube; A flow guide frame used for conveying gas into the second cavity of the air guide pipe, wherein the flow guide frame is rotatably connected to the air guide pipe, and an air inlet pipe is also arranged on the flow guide frame; A telescopic cylinder for driving the guide frame to move, wherein the telescopic cylinder is arranged on the material guide pipe, and the air guide pipe can move along with the guide frame in the telescopic direction of the telescopic cylinder; And a first air guide hole and a second air guide hole are opened on the side wall of the air guide pipe.

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