A geomembrane extrusion molding equipment

Abstract

The present invention relates to the field of geomembrane technology, and in particular to a geomembrane extrusion molding equipment, including a screw extruder and a feeding tank; it also includes a material equalizer, a die head, two adjustment plates, multiple screws, two columns, a lower roller and an upper roller, the screw extruder is connected to the die head through the material equalizer, the material equalizer is used to evenly feed the die head, the upper and lower parts of the long narrow mouth of the die head are both provided with receiving grooves, the two adjustment plates are respectively slidably installed in the two receiving grooves of the long narrow mouth of the die head, the gap between the two adjustment plates is a narrow and long extrusion port, the middle parts of the multiple screws are respectively rotatably screwed with the top wall and the bottom wall of the die head, the inner ends of the multiple screws are respectively rotatably connected with the two adjustment plates, the two columns are installed on the outer side of the output end of the die head, and the two ends of the lower roller and the upper roller are respectively rotatably installed on the two columns; it can adjust the width of the extrusion port, and then adjust the thickness of the geomembrane, and has little limitation.

Description

Technical Field

[0001] The invention relates to the technical field of geomembranes, in particular to a geomembrane extrusion molding device. Background Art

[0002] Geomembrane is a waterproof barrier material with high molecular polymer as the basic raw material. It is mainly used in civil engineering to prevent liquid leakage and gas penetration. Geomembrane is generally produced by two processes: blow molding and extrusion molding. When geomembrane is produced by extrusion process, extrusion molding equipment is required. Commonly used extrusion molding equipment includes screw extruders, die heads and calender roller sets. For example, the Chinese invention patent with publication number CN117962259B proposes an extrusion molding equipment for composite geomembrane for construction. This equipment precisely controls extrusion box one and extrusion box two. When the geomembrane is fed through the middle of the two, part of the geomembrane is squeezed into the inside of extrusion box one and extrusion box two. The water pump draws water from the source and injects it into the inside of extrusion box two. The air pump pumps air into the inside of extrusion box two. The injected gas increases the internal air pressure of the extrusion box one and the extrusion box two, accelerates the penetration of water molecules into the geomembrane, further enhances the extrusion effect, and realizes the detection of the anti-seepage effect of the geomembrane; when the geomembrane passes through the trimming mechanism, the electric clamp can clamp the geomembrane, and the electric rotation connection between the guide rail and the feed knife realizes the transverse and longitudinal cutting of the geomembrane, so as to adjust the width of the geomembrane; when the angle between the two inclined rods changes, the vertical distance between the winding frame and the rotating rod changes, and when the angle decreases, the vertical distance increases, and the winding diameter formed by multiple winding frames increases, so that the winding frame rotates and moves to complete the winding process of the material.

[0003] However, the above extrusion equipment does not improve the extrusion box, and the narrow and long extrusion port of the traditional extrusion box is not convenient for adjusting the width, and further, it is not convenient for adjusting the thickness of the geomembrane, which has great limitations. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a geomembrane extrusion molding device with small limitations, which can adjust the width of the extrusion port and thus adjust the thickness of the geomembrane.

[0005] A geomembrane extrusion molding equipment of the present invention includes a screw extruder and a feeding tank, which is installed on the feed port of the screw extruder; it also includes a material equalizer, a die head, two adjustment plates, multiple screws, two columns, a lower roller and an upper roller, the output end of the screw extruder is connected to the input end of the material equalizer, the output end of the material equalizer is connected to the input port of the die head, an elongated chamber is arranged inside the die head, the output end of the die head is a long narrow opening connected to the elongated chamber, the material equalizer is used to evenly feed material to the elongated chamber of the die head, the upper and lower parts of the long narrow opening of the die head are both provided with receiving grooves, the two adjustment plates are respectively slidably installed in the two receiving grooves of the long narrow opening of the die head, the gap between the two adjustment plates is a narrow and long extrusion port, the top wall and the bottom wall of the middle die head of the multiple screws are both screwed with multiple screws, the inner ends of the multiple screws are respectively It is rotatably connected to two adjustment plates, and two columns are installed on the outer side of the output end of the die head. The two ends of the lower roller and the upper roller are rotatably installed on the two columns respectively. When working, multiple screws are rotated, and the multiple screws cooperate with the threads of the top wall and the bottom wall of the die head to adjust the gap width between the two adjustment plates, so as to adjust the initial thickness of the geomembrane. The material of the geomembrane in the feeding tank is input into the screw extruder, and the screw extruder melts the material and conveys it to the material equalizer. The material equalizer conveys the molten material to the elongated chamber of the die head. The material in the elongated chamber is extruded through the extrusion port formed between the two adjustment plates to form a geomembrane. The geomembrane is input between the lower roller and the upper roller, so that the lower roller and the upper roller calender the geomembrane. Compared with the prior art that adjusts the width of the extrusion port and then adjusts the thickness of the geomembrane, it has less limitations.

[0006] Preferably, the material equalizer includes a shell, a feed shaft, a motor and a feed hole, the feed pipe of the shell is connected to the output end of the screw extruder, a cylindrical chamber is arranged inside the shell, the feed pipe of the shell is communicated with the cylindrical chamber, the feed shaft is rotatably installed in the cylindrical chamber, a plurality of through holes are arranged along the axis of the feed shaft, the plurality of through holes are rotatably arranged, the motor is installed on the shell, the output shaft of the motor is transmission-connected with the feed shaft, a plurality of feed holes are arranged on the side of the shell away from the feed pipe, the plurality of feed holes are respectively aligned with the plurality of through holes of the feed shaft, the input end of the die head is a plurality of feed holes matched and aligned with the plurality of feed holes, and the plurality of feed holes are communicated with the elongated chamber of the die head; the screw extruder inputs the molten material into the cylindrical chamber of the shell through the feed pipe, and transports the molten material to the elongated chamber of the die head through the through holes on the feed shaft aligned and communicated with the corresponding plurality of feed holes, the motor drives the feed shaft to rotate, so that the plurality of through holes transport the material to the die head in turn, thereby achieving uniform feeding, and having good practicality.

[0007] Preferably, it includes two sliders and two screw rods 2, the two sliders are respectively lifted and slidably installed on the two pillars 1, the two ends of the upper roller are respectively rotatably connected with the two sliders, the lower ends of the two screw rods 2 pass through the tops of the two pillars 1 and are connected with the two sliders, and the two screw rods 2 are rotatably threaded with nuts; the height of the two sliders on the two pillars 1 is adjusted by rotating the nuts on the two screw rods 2, thereby adjusting the gap size between the upper roller and the lower roller, and then adjusting the calendering thickness of the geomembrane, and the versatility is good.

[0008] Preferably, it also includes a stirring shaft, multiple stirring rods, a driven wheel, a driving wheel and a transmission belt. The stirring shaft is rotatably installed in the long strip chamber of the die head. The stirring shaft is located on the side close to the input end of the die head. Multiple stirring rods are installed on the stirring shaft. The driven wheel is concentrically installed on the stirring shaft. The driving wheel is concentrically installed on the feeding shaft. The two ends of the transmission belt are respectively mounted on the driven wheel and the driving wheel. When the motor drives the feeding shaft to rotate, the feeding shaft drives the driving wheel to rotate, and the driving wheel drives the driven wheel and the stirring shaft to rotate through the transmission belt. The stirring shaft drives the multiple stirring rods to rotate and stir the materials in the long strip chamber of the die head, so that the materials are more uniform and the molding quality of the geomembrane is improved.

[0009] Preferably, it also includes two layered plates and multiple threaded tubes, the two layered plates are respectively located in the two adjustment plates, the top wall and the bottom wall of the die head are respectively movably connected to the middle part of the multiple threaded tubes, and the inner ends of the multiple threaded tubes are respectively connected to the two layered plates; by arranging two layered plates between the two adjustment plates, the two layered plates separate the extrusion port of the adjustment plate into multiple layers, so that the extruded geomembrane has a multi-layer structure, and the positions of the two layered plates are adjusted by multiple threaded tubes to adjust the thickness of each layer in the multi-layer structure of the geomembrane.

[0010] Preferably, it also includes multiple bearing seats and multiple threaded seats. Multiple bearing seats are installed on the top wall and bottom wall of the die head, and threaded seats are installed on the rotating ends of the multiple bearing seats. Multiple threaded tubes pass through the multiple bearing seats respectively, and the multiple threaded seats are threadedly connected with the external threads of the multiple threaded tubes respectively; the multiple threaded seats are rotatably installed on the top wall and bottom wall of the die head through the multiple bearing seats, and the multiple threaded seats are rotated. The multiple threaded seats and the multiple threaded tubes drive the multiple threaded tubes to rise and fall through the threaded action, thereby adjusting the position of the two layered plates between the two adjustment plates, and then adjusting the thickness of each layer in the multi-layer structure of the geomembrane, which has good practicality.

[0011] Preferably, it also includes two blowing cavities and an air supply pipeline. The blowing cavities are arranged inside the two layered plates. Long air outlet holes connected to the two blowing cavities are respectively arranged on the side of the output ends of the two layered plates facing the die head. A plurality of threaded tubes are respectively provided with hollow channels. A plurality of threaded tubes located on the top wall of the die head are connected to the upper blowing cavities. A plurality of threaded tubes located on the bottom wall of the die head are connected to the lower blowing cavities. A plurality of output ends of the air supply pipeline are respectively connected to the hollow channels of the plurality of threaded tubes. An input end of the air supply pipeline is connected to an external air supply system, and the air supply system supplies air to the two blowing cavities in the two layered plates through the air supply pipeline. The high-pressure air is blown into between the multi-layer structure of the geomembrane through the long air outlet holes of the two blowing cavities, so that the geomembrane extruded through the two adjustment plates is blown and expanded, thereby realizing the combination of extrusion molding and blow molding, thereby further increasing the width of the geomembrane, and having good practicality.

[0012] Preferably, it also includes a powder box, which is installed on the air supply pipeline and stores powder in the powder box; the powder stored in the powder box is transported to the two blowing cavities in the two layered plates through the air supply pipeline and multiple threaded tubes, and the powder is blown into the multi-layer structure of the geomembrane along with the air, thereby realizing the different functions of the geomembrane and having good practicality.

[0013] Preferably, it also includes two pillars 2, two guide frames, multiple guide rollers, two gears 1 and gear 2, the two pillars 2 are installed between the die head and the two pillars 1, the ends of the two guide frames away from the die head are rotatably connected to the two pillars 2 through rotating shafts, and the other ends of the two guide frames are both facing the die head. Multiple guide rollers are rotatably installed on the two guide frames, two gears 1 are concentrically installed on the rotating shafts of the two guide frames, the two gears 1 are meshed, and gear 2 is rotatably installed on the pillar 2, and gear 2 is meshed with one of the gears 1; the geomembrane formed by extrusion and blow molding passes through the multiple guide rollers between the guide frames and enters the lower roller and the upper roller for calendering molding, and gear 2 is rotated, and gear 2 meshes with gear 1 to drive gear 1, and the two gears 1 are meshed to synchronously drive the two guide frames to open or close together, thereby realizing the rolling shrinkage of the geomembrane, which is practical.

[0014] Preferably, it also includes a cross bar, two sleeves, a plurality of deflation needles, a driven wheel 2, a driving wheel 2 and a transmission belt 2. The cross bar is rotatably installed on the front side of the two upright posts 1 through a bracket, and the two sleeves are relatively slidably installed on the cross bar. A plurality of deflation needles are circumferentially installed on the two sleeves. The driven wheel 2 is concentrically installed on the cross bar, and the driving wheel 2 is concentrically installed on the rotating shaft of the lower roller. The driving wheel 2 and the driven wheel 2 are connected by a transmission belt 2. When the lower roller rotates, it drives the driving wheel 2 to rotate, and the driving wheel 2 drives the driven wheel 2 to rotate through the transmission belt 2. The driven wheel 2 drives the cross bar to rotate, and the cross bar drives the two sleeves and the plurality of deflation needles to rotate, so that the plurality of deflation needles pierce the blow-molded geomembrane and release the gas inside the geomembrane, which is convenient for the lower roller and the upper roller to calender the geomembrane, and move the two sleeves along the cross bar to adapt to geomembranes of different widths, and has good versatility.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the thickness of the geomembrane can be adjusted by adjusting the width of the extrusion port, with little limitation; the geomembrane can be rolled and shrunk, with good practicability; the width of the geomembrane can be further increased by combining extrusion molding and blow molding; the powder can be blown into the multi-layer structure of the geomembrane with air to realize the different functions of the geomembrane; the extruded geomembrane can be made into a multi-layer structure, and the thickness of each layer in the multi-layer structure of the geomembrane can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a side structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the axonometric structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the screw extruder, the feed tank, the material distributor and the die head;

[0020] Figure 5 It is a schematic diagram of the structure of the die head, adjustment plate, screw and air supply pipeline;

[0021] Figure 6 It is a schematic diagram of the decomposed structure of the die head, adjustment plate, screw and air delivery pipeline;

[0022] Figure 7 It is a schematic diagram of the structure of the screw extruder, the feeding tank and the material homogenizer;

[0023] Figure 8 It is a structural diagram of the housing, feeding shaft, motor and feeding hole;

[0024] Fig. 9It is a schematic diagram of the structure of the column 1, the lower roller and the upper roller;

[0025] Fig.10 yes Fig. 9 A schematic diagram of the local enlarged structure at point A in the middle;

[0026] Fig.11 It is a structural schematic diagram of the structure of the column 2, the guide frame, the guide roller, the gear 1 and the gear 2;

[0027] Fig.12 It is a side view structural diagram of the structure of the second column, the guide frame, the guide roller, the first gear and the second gear;

[0028] Markings in the attached figure: 1. screw extruder; 2. feeding tank; 3. material equalizer; 4. die head; 5. adjustment plate; 6. screw; 7. column one; 8. lower roller; 9. upper roller; 10. housing; 11. feeding shaft; 12. motor; 13. feeding hole; 14. slider; 15. screw two; 16. stirring shaft; 17. stirring rod; 18. driven wheel one; 19. driving wheel one; 20. transmission belt one; 21. layering plate; 22. threaded pipe; 23. bearing seat; 24. threaded seat; 25. blowing chamber; 26. air supply pipeline; 27. powder box; 28. column two; 29. ​​guide frame; 30. guide roller; 31. gear one; 32. gear two; 33. cross bar; 34. sleeve; 35. venting needle; 36. driven wheel two; 37. driving wheel two; 38. transmission belt two. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Example 1

[0030] like Figures 1 to 8As shown, a geomembrane extrusion molding equipment includes a screw extruder 1 and a feeding tank 2, and the feeding tank 2 is installed on the feed port of the screw extruder 1; it also includes a material equalizer 3, a die head 4, two adjustment plates 5, multiple screws 6, two columns 7, a lower roller 8 and an upper roller 9, the output end of the screw extruder 1 is connected to the input end of the material equalizer 3, the output end of the material equalizer 3 is connected to the input port of the die head 4, a long strip chamber is arranged inside the die head 4, the output end of the die head 4 is a long narrow opening connected to the long strip chamber, the material equalizer 3 is used to evenly feed the material to the long strip chamber of the die head 4, the upper and lower parts of the long narrow opening of the die head 4 are both provided with receiving grooves, and the two adjustment plates 5 are respectively slidably installed on the two ends of the long narrow opening of the die head 4 up and down. In a receiving groove, the gap between the two adjustment plates 5 is a narrow and long extrusion port, the top wall and the bottom wall of the die head 4 are rotatably screwed with multiple screws 6, the inner ends of the multiple screws 6 are rotatably connected to the two adjustment plates 5 respectively, the inner ends of the screws 6 on the top wall of the die head 4 are rotatably connected to the upper adjustment plate 5, and the inner ends of the screws 6 on the bottom wall of the die head 4 are rotatably connected to the lower adjustment plate 5, two columns 7 are installed on the outside of the output end of the die head 4, and the two ends of the lower roller 8 and the upper roller 9 are rotatably installed on the two columns 7 respectively; the material distributor 3 includes a shell 10, a feeding shaft 11, a motor 12 and a feeding hole 13, the feed pipe of the shell 10 is connected to the output end of the screw extruder 1, and a circular The cylindrical chamber, the feed pipe of the shell 10 is connected with the cylindrical chamber, the feed shaft 11 is rotatably installed in the cylindrical chamber, a plurality of through holes are arranged along the axis of the feed shaft 11, and the plurality of through holes are arranged along the circumferential direction, the motor 12 is installed on the shell 10, and the output shaft of the motor 12 is connected with the feed shaft 11 in a transmission manner, a plurality of feed holes 13 are arranged on the side of the shell 10 away from the feed pipe, and the plurality of feed holes 13 are respectively aligned one by one with the plurality of through holes of the feed shaft 11, and the input end of the die head 4 is a plurality of feed holes matched and aligned with the plurality of feed holes 13, and the plurality of feed holes are connected with the elongated chamber of the die head 4; it includes two sliders 14 and two screws 15, and the two sliders 14 are respectively installed on two columns 17 for lifting and sliding. The upper roller 9 has two ends which are rotatably connected to the two sliders 14 respectively, and the lower ends of the two screw rods 15 respectively pass through the tops of the two columns 7 and are connected to the two sliders 14, and nuts are rotatably screwed on the two screw rods 15; it also includes a stirring shaft 16, a plurality of stirring rods 17, a driven wheel 18, a driving wheel 19 and a transmission belt 20, the stirring shaft 16 is rotatably installed in the long strip chamber of the die head 4, the stirring shaft 16 is located on the input end side close to the die head 4, a plurality of stirring rods 17 are installed on the stirring shaft 16, the driven wheel 18 is concentrically installed on the stirring shaft 16, the driving wheel 19 is concentrically installed on the feeding shaft 11, and the two ends of the transmission belt 20 are respectively fitted with the driven wheel 18 and the driving wheel 19.

[0031] During operation, multiple screws 6 are rotated, and the threads of the multiple screws 6 and the top and bottom walls of the die head 4 cooperate to adjust the gap width between the two adjustment plates 5, thereby adjusting the initial thickness of the geomembrane. The material of the geomembrane in the feeding tank 2 is input into the screw extruder 1, and the screw extruder 1 inputs the molten material into the cylindrical chamber of the shell 10 through the feed pipe, and transports it to the elongated chamber of the die head 4 through the through holes on the feed shaft 11 that are aligned and connected with the corresponding multiple feed holes 13. The motor 12 drives the feed shaft 11 to rotate, so that the multiple through holes sequentially transport the material to the die head 4 to achieve uniform feeding. When the motor 12 drives the feed shaft 11 to rotate, the feed shaft 11 drives the driving wheel 19 to rotate, and the driving wheel 19 is driven by the transmission The belt 20 drives the driven wheel 18 and the stirring shaft 16 to rotate, and the stirring shaft 16 drives multiple stirring rods 17 to rotate and stir the materials in the long strip chamber of the die head 4 to make the materials more uniform. The materials in the long strip chamber are extruded through the extrusion port formed between the two adjustment plates 5 to form a geomembrane, and the geomembrane is input between the lower roller 8 and the upper roller 9, so that the lower roller 8 and the upper roller 9 calender the geomembrane. The height of the two sliders 14 on the two columns 7 is adjusted by rotating the nuts on the two screw rods 15, so as to adjust the gap size between the upper roller 9 and the lower roller 8, and then adjust the calendering thickness of the geomembrane. Compared with the prior art that adjusts the width of the extrusion port to adjust the thickness of the geomembrane, it has small limitations and good practicality. Example 2

[0032] like Figures 4 to 6 As shown, on the basis of Example 1, it also includes two layered plates 21 and multiple threaded tubes 22, the two layered plates 21 are respectively located in the two adjustment plates 5, the top wall and the bottom wall of the die head 4 are respectively movably connected to the middle parts of the multiple threaded tubes 22, the inner ends of the multiple threaded tubes 22 located on the top wall of the die head 4 are connected to the upper layered plate 21, and the inner ends of the multiple threaded tubes 22 located on the bottom wall of the die head 4 are connected to the lower layered plate 21; it also includes multiple bearing seats 23 and multiple threaded seats 24, the multiple bearing seats 23 are respectively installed on the top wall and the bottom wall of the die head 4, the rotating ends of the multiple bearing seats 23 are all installed with threaded seats 24, the multiple threaded tubes 22 respectively pass through the multiple bearing seats 23, and the multiple threaded seats 24 are respectively rotatably screwed with the external threads of the multiple threaded tubes 22.

[0033] By arranging two layered plates 21 between the two adjustment plates 5, the two layered plates 21 separate the extrusion port of the adjustment plate 5 into multiple layers, so that the extruded geomembrane has a multi-layer structure, and multiple threaded seats 24 are rotatably installed on the top wall and bottom wall of the die head 4 through multiple bearing seats 23 respectively. By rotating the multiple threaded seats 24, the multiple threaded seats 24 and the multiple threaded tubes 22 are driven to rise and fall through the thread action, thereby adjusting the position of the two layered plates 21 between the two adjustment plates 5, and then adjusting the thickness of each layer in the multi-layer structure of the geomembrane, which has good practicality. Example 3

[0034] like Figures 1 to 3 , Figure 5 , Figure 6 , Figures 9 to 12 As shown, on the basis of Example 2, it also includes two blowing cavities 25 and an air supply pipeline 26, the two layered plates 21 are each provided with a blowing cavity 25, and the two layered plates 21 are respectively provided with an air outlet long hole connected to the two blowing cavities 25 on one side of the output end facing the die head 4, and the plurality of threaded tubes 22 are each provided with a hollow channel, and the plurality of hollow channels are respectively connected to the two blowing cavities 25, and the plurality of threaded tubes 22 located on the top wall of the die head 4 are all connected to the upper blowing cavity 25, and the plurality of threaded tubes 22 located on the bottom wall of the die head 4 are all connected to the lower blowing cavity 25, and the plurality of output ends of the air supply pipeline 26 are respectively connected to the hollow channels of the plurality of threaded tubes 22; it also includes a powder box 27, the powder box 27 is installed on the air supply pipeline 26, and the powder is stored in the powder box 27; it also includes two columns 28, two guide frames 29, a plurality of guide rollers 30, two gears 31 and a gear 2 32, the two columns 28 are installed between the die head 4 and the two columns 7, and the two guide rollers 30 are provided with a plurality of guide rollers 31 and a gear 2 32. One end of the frame 29 away from the die head 4 is rotatably connected to the two pillars 28 through a rotating shaft, and the other ends of the two guide frames 29 are both facing the die head 4. Multiple guide rollers 30 are rotatably installed on the two guide frames 29, and two gears 1 31 are respectively concentrically installed on the rotating shafts of the two guide frames 29. The two gears 1 31 are meshed, and gear 2 32 is rotatably installed on the pillar 28, and gear 2 32 is meshed with one of the gears 1 31; it also includes a cross bar 33, two sleeves 34, multiple deflation needles 35, a driven wheel 2 36, a driving wheel 2 37 and a transmission belt 2 38. The cross bar 33 is rotatably installed on the front side of the two pillars 1 7 through a bracket, and the two sleeves 34 are relatively slidably installed on the cross bar 33. Multiple deflation needles 35 are installed on the two sleeves 34 along the circumferential direction, the driven wheel 2 36 is concentrically installed on the cross bar 33, and the driving wheel 2 37 is concentrically installed on the rotating shaft of the lower roller 8. The driving wheel 2 37 and the driven wheel 2 36 are connected through the transmission belt 2 38.

[0035] The input end of the air supply pipeline 26 is connected to an external air supply system, and the air supply system supplies air to the two blowing cavities 25 in the two layered plates 21 through the air supply pipeline 26. The high-pressure air is blown into the space between the multi-layer structures of the geomembrane through the long air outlet holes of the two blowing cavities 25, so that the geomembrane extruded through the two adjustment plates 5 is blown and expanded, realizing the combination of extrusion molding and blow molding, thereby further increasing the width of the geomembrane. The powder stored in the powder box 27 is transported to the two blowing cavities 25 in the two layered plates 21 through the air supply pipeline 26 and multiple threaded tubes 22, and the powder is blown into the space between the multi-layer structures of the geomembrane with the air, realizing the different functions of the geomembrane. The geomembrane that has been extruded and blown enters through the multiple guide rollers 30 between the guide frames 29. The geomembrane is rolled and formed in the lower roller 8 and the upper roller 9, and the gear 2 32 is rotated. The gear 2 32 meshes with the driving gear 1 31. The two gears 1 31 mesh to synchronously drive the two guide frames 29 to open or close together, thereby realizing the rolling and shrinking of the geomembrane. When the lower roller 8 rotates, it drives the driving wheel 2 37 to rotate. The driving wheel 2 37 drives the driven wheel 2 36 to rotate through the transmission belt 2 38. The driven wheel 2 36 drives the cross bar 33 to rotate. The cross bar 33 drives the two sleeves 34 and multiple air release needles 35 to rotate, so that the multiple air release needles 35 pierce the blow-molded geomembrane and release the gas inside the geomembrane, which is convenient for the lower roller 8 and the upper roller 9 to roll and form the geomembrane. The two sleeves 34 are moved along the cross bar 33 to adapt to geomembranes of different widths, and the versatility is good.

[0036] like Figures 1 to 12As shown, a geomembrane extrusion molding device of the present invention, when working, first, rotates a plurality of screws 6, and the threads of the plurality of screws 6 and the top wall and the bottom wall of the die head 4 cooperate to adjust the gap width between the two adjustment plates 5, so as to adjust the initial thickness of the geomembrane, and then the material of the geomembrane in the feeding tank 2 is input into the screw extruder 1, and the screw extruder 1 melts the material and conveys it to the material equalizer 3, and the material equalizer 3 conveys the molten material to the elongated chamber of the die head 4, and the material in the elongated chamber is extruded through the extrusion port formed between the two adjustment plates 5 to form a geomembrane, and then in this process, the air supply system supplies air to the two blowing cavities 25 in the two layered plates 21 through the air supply pipeline 26, and the high-pressure air is blown into between the multi-layer structure of the geomembrane through the long air outlet holes of the two blowing cavities 25, so that the geomembrane extruded through the two adjustment plates 5 Blow molding expansion, the geomembrane that has been extruded and blown passes through multiple guide rollers 30 between the guide frames 29 and enters the lower roller 8 and the upper roller 9 for calendering molding, and the gear 2 32 is rotated, and the gear 2 32 engages with the driving gear 1 31. The two gears 1 31 engage to synchronously drive the two guide frames 29 to open or close together, thereby realizing the rolling contraction of the geomembrane. Finally, when the lower roller 8 rotates, it drives the active wheel 2 37 to rotate, and the active wheel 2 37 drives the driven wheel 2 36 to rotate through the transmission belt 2 38. The driven wheel 2 36 drives the cross bar 33 to rotate, and the cross bar 33 drives the two sleeves 34 and multiple deflation needles 35 to rotate, so that the multiple deflation needles 35 pierce the blow-molded geomembrane and release the gas inside the geomembrane. The deflated geomembrane is input between the lower roller 8 and the upper roller 9, so that the lower roller 8 and the upper roller 9 can calender the geomembrane.

[0037] The main functions achieved by the present invention are:

[0038] 1. The width of the extrusion port can be adjusted, and then the thickness of the geomembrane can be adjusted, with little limitation;

[0039] 2. Good practicality for roller compression shrinkage of geomembrane;

[0040] 3. Combine extrusion molding and blow molding to further increase the width of the geomembrane;

[0041] 4. The powder is blown into the multi-layer structure of the geomembrane with the air to realize the different functions of the geomembrane;

[0042] 5. The extruded geomembrane can be made into a multi-layer structure, and the thickness of each layer in the multi-layer structure of the geomembrane can be adjusted.

[0043] The geomembrane extrusion molding equipment of the present invention has a common mechanical installation method, connection method or setting method, which can be implemented as long as it can achieve its beneficial effects; the screw extruder 1, feeding tank 2, adjustment plate 5, screw 6, lower roller 8, upper roller 9, feeding shaft 11, motor 12, slider 14, screw 2 15, driven wheel 1 18, driving wheel 1 19, transmission belt 1 20, threaded pipe 22, bearing seat 23, threaded seat 24, air supply pipeline 26, powder box 27, guide roller 30, gear 1 31, gear 2 32, venting needle 35, driven wheel 2 36, driving wheel 2 37, transmission belt 2 38 of the geomembrane extrusion molding equipment of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A geomembrane extrusion molding device, comprising a screw extruder (1) and a feeding tank (2), wherein the feeding tank (2) is installed on the feed port of the screw extruder (1); characterized in that: The extruder also includes a material distributor (3), a die head (4), two adjustment plates (5), a plurality of screws (6), two uprights (7), a lower roller (8) and an upper roller (9). The output end of the screw extruder (1) is connected to the input end of the material distributor (3), the output end of the material distributor (3) is connected to the input port of the die head (4), a long strip chamber is arranged inside the die head (4), the output end of the die head (4) is a long narrow opening connected to the long strip chamber, the material distributor (3) is used to uniformly feed material to the long strip chamber of the die head (4), and the die head (4) is provided with a plurality of adjustment plates (5), a plurality of screws (6), two uprights (7), a lower roller (8) and an upper roller (9). The upper and lower parts of the long narrow opening are both provided with receiving grooves, and two adjustment plates (5) are respectively slidably mounted in the two receiving grooves of the long narrow opening of the die head (4), and the gap between the two adjustment plates (5) is a narrow and long extrusion opening. The top wall and the bottom wall of the die head (4) are both screwed with a plurality of screw rods (6), and the inner ends of the plurality of screw rods (6) are respectively rotatably connected to the two adjustment plates (5). Two columns (7) are mounted on the outer side of the output end of the die head (4), and the two ends of the lower roller (8) and the upper roller (9) are respectively rotatably mounted on the two columns (7); The material homogenizer (3) comprises a shell (10), a feed shaft (11), a motor (12) and a feed hole (13); the feed pipe of the shell (10) is connected to the output end of the screw extruder (1); a cylindrical chamber is arranged inside the shell (10); the feed pipe of the shell (10) is communicated with the cylindrical chamber; the feed shaft (11) is rotatably mounted in the cylindrical chamber; a plurality of through holes are arranged along the axis of the feed shaft (11); the plurality of through holes are rotatably arranged along the axis; the motor (12) is mounted on the shell (10); the output shaft of the motor (12) is transmission-connected to the feed shaft (11); a plurality of feed holes (13) are arranged on a side of the shell (10) away from the feed pipe; the plurality of feed holes (13) are respectively aligned with the plurality of through holes of the feed shaft (11); the input end of the die head (4) is a plurality of feed holes that match and align with the plurality of feed holes (13); the plurality of feed holes are communicated with the elongated chamber of the die head (4); It also includes a stirring shaft (16), a plurality of stirring rods (17), a driven wheel (18), a driving wheel (19) and a transmission belt (20), wherein the stirring shaft (16) is rotatably mounted in the elongated chamber of the die head (4), the stirring shaft (16) is located on the input end side close to the die head (4), a plurality of stirring rods (17) are mounted on the stirring shaft (16), the driven wheel (18) is coaxially mounted on the stirring shaft (16), the driving wheel (19) is coaxially mounted on the feeding shaft (11), and the two ends of the transmission belt (20) are respectively mounted on the driven wheel (18) and the driving wheel (19); It also includes two layered plates (21) and a plurality of threaded tubes (22), the two layered plates (21) are respectively located in the two adjustment plates (5), the top wall and the bottom wall of the die head (4) are respectively movably connected to the middle parts of the plurality of threaded tubes (22), and the inner ends of the plurality of threaded tubes (22) are respectively connected to the two layered plates (21); It also comprises two blowing cavities (25) and an air supply pipeline (26), wherein the two layered plates (21) are each provided with an air blowing cavity (25), and the two layered plates (21) are respectively provided with air outlet long holes communicating with the two blowing cavities (25) on one side of the output end facing the die head (4), and the plurality of threaded tubes (22) are each provided with a hollow passage, the plurality of threaded tubes (22) located on the top wall of the die head (4) are each communicated with the upper blowing cavity (25), the plurality of threaded tubes (22) located on the bottom wall of the die head (4) are each communicated with the lower blowing cavity (25), and the plurality of output ends of the air supply pipeline (26) are respectively communicated with the hollow passages of the plurality of threaded tubes (22); The invention also comprises a cross bar (33), two sleeves (34), a plurality of deflation needles (35), a second driven wheel (36), a second driving wheel (37) and a second transmission belt (38); the cross bar (33) is rotatably mounted on the front side of two first upright posts (7) via a bracket; the two sleeves (34) are relatively slidably mounted on the cross bar (33); a plurality of deflation needles (35) are mounted on the circumferential direction of the two sleeves (34); the second driven wheel (36) is concentrically mounted on the cross bar (33); the second driving wheel (37) is concentrically mounted on the rotating shaft of the lower roller (8); the second driving wheel (37) and the second driven wheel (36) are connected in transmission via a second transmission belt (38).

2. A geomembrane extrusion molding equipment as claimed in claim 1, characterized in that: The utility model comprises two sliders (14) and two screw rods (15). The two sliders (14) are respectively installed on the two pillars (7) in a lifting and sliding manner. The two ends of the upper roller (9) are respectively connected to the two sliders (14) in a rotational manner. The lower ends of the two screw rods (15) respectively pass through the tops of the two pillars (7) and are connected to the two sliders (14). The two screw rods (15) are both rotatably screwed with nuts.

3. A geomembrane extrusion molding equipment as claimed in claim 1, characterized in that: It also includes a plurality of bearing seats (23) and a plurality of threaded seats (24). The plurality of bearing seats (23) are mounted on the top wall and the bottom wall of the die head (4). The plurality of threaded seats (24) are mounted on the rotating ends of the plurality of bearing seats (23). The plurality of threaded tubes (22) respectively pass through the plurality of bearing seats (23). The plurality of threaded seats (24) are respectively threadedly connected to the external threads of the plurality of threaded tubes (22).

4. A geomembrane extrusion molding equipment as claimed in claim 1, characterized in that: It also includes a powder box (27), which is installed on the air supply pipeline (26) and stores powder in the powder box (27).

5. The geomembrane extrusion molding equipment according to claim 1, characterized in that: The invention also comprises two second columns (28), two guide frames (29), a plurality of guide rollers (30), two gears one (31) and a gear two (32). The two second columns (28) are mounted between the die head (4) and the two first columns (7). One end of the two guide frames (29) away from the die head (4) is rotatably connected to the two second columns (28) via a rotating shaft. The other ends of the two guide frames (29) are both facing the die head (4). The two guide frames (29) are rotatably mounted with a plurality of guide rollers (30). The two gears one (31) are respectively concentrically mounted on the rotating shafts of the two guide frames (29). The two gears one (31) are meshed. The gear two (32) is rotatably mounted on the second column (28). The gear two (32) is meshed with one of the gears one (31).

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