Double-edging agricultural film fold flattening device and agricultural film production line

Abstract

The invention relates to the technical field of plastic manufacturing, and provides a double-edging agricultural film fold flattening device and an agricultural film production line, the double-edging agricultural film fold flattening device comprises an upper fixing seat, a first threaded flattening roller and a second threaded flattening roller are rotatably mounted on the upper fixing seat, and a driving component is started to drive the first threaded flattening roller and the second threaded flattening roller to rotate in the same direction through a transmission mechanism; inclined screw flights are arranged on the first threaded flattening roller and the second threaded flattening roller, and the first threaded flattening roller and the second threaded flattening roller are operated to apply transverse expansion force to the agricultural film through the screw flights so as to drive the agricultural film to be flattened from the middle to the two sides; the agricultural film flattening device has the beneficial effects that the agricultural film is flattened from the edges of the two sides of the middle phase, the flattening accuracy of the agricultural film is improved, and the phenomenon that in the flattening process, the width of the agricultural film is increased, and consequently winding dislocation is caused is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic manufacturing, and particularly relates to a double-edge rolled agricultural film wrinkle flattening device and an agricultural film production line. Background Art

[0002] The production process of double-rolled edge agricultural film is to first adopt the extrusion blow molding process to form a cylindrical agricultural film, which is then stacked into two layers by the upper traction roller. After being pulled out by the upper traction roller, the agricultural film passes through a slitting knife edge folding device, which includes a knife frame and a slitting knife perpendicular to the knife frame. The slitting knife edge folding device is inserted into the two layers of agricultural film to split a layer of agricultural film, and the split part of the agricultural film is folded in opposite directions on both sides of the slitting knife and respectively adhered to the layer of agricultural film. The agricultural film is continued to be pulled through the double-rolled edge heat sealing machine, and the heat sealer heat-seals the edge of the folded agricultural film with the agricultural film that adheres to it to form two rope-threaded rolled edges. When the agricultural film passes through the slitting knife frame and the heat sealing machine, the gap between the two layers of agricultural film increases and the width of the agricultural film becomes narrower. After passing through the slitting knife frame and the heat sealing machine, the agricultural film will have longitudinal wrinkles. If it is directly rolled up by the next cloth guide roller, the wrinkles will form dead folds that can no longer be stretched, affecting the product quality and life.

[0003] The patent document with publication number CN106584825B discloses a double-rolled edge agricultural film wrinkle flattening device and an agricultural film production line equipped with the double-rolled edge agricultural film wrinkle flattening device, wherein the double-rolled edge agricultural film wrinkle flattening device is located downstream of the rolled edge heat-sealing device and between two layers of agricultural film, and comprises: a first support rod; a second support rod, one end of the second support rod is hinged with one end of the first support rod through a hinge shaft, the other end of the second support rod is away from the other end of the first support rod so that an angle is formed between the first support rod and the second support rod, and a guide wheel is installed at each end of the two support rods away from each other; a connecting rod, one end of the connecting rod is connected to the first support rod, and the other end is connected to the second support rod to maintain the angle formed by the first support rod and the second support rod. The technical problem solved by the present invention is to overcome the problem that the agricultural film cannot be mechanically rolled online due to wrinkles after passing through the slitting knife frame and the heat-sealing device, and provide a double-rolled edge agricultural film wrinkle flattening device and an agricultural film production line with the device.

[0004] However, during the flattening operation, the first support rod and the second support rod stretch the agricultural film through the guide wheel, thereby achieving the flattening of the agricultural film. The two rolled edges of the lower layer of the agricultural film are disconnected. When the agricultural film is stretched by the two guide wheels, it is easy to cause the gap between the two rolled edges to increase, thereby aggravating the wrinkles of the upper layer of the agricultural film. It is necessary to rely on traction equipment to pull the two rolled edges of the agricultural film and move it in a straight line to ensure that the upper layer of the agricultural film is flattened. Summary of the invention

[0005] In view of this, the present invention provides a double-rolled edge agricultural film wrinkle flattening device and an agricultural film production line, which can realize flattening of the agricultural film from the edges on both sides of the middle phase, improve the accuracy of the flattening of the agricultural film, and prevent the width of the agricultural film from increasing during the flattening process, thereby preventing the occurrence of winding misalignment.

[0006] The technical scheme is as follows: a double-edge rolled agricultural film wrinkle flattening device, comprising an upper fixed seat and two symmetrical edge rolled parts, the upper fixed seat is located in the middle of the two symmetrical edge rolled parts, the upper fixed seat is fixedly provided with a first rotating shaft, the first rotating shaft is rotatably installed with a first threaded flattening roller and a second threaded flattening roller, the first threaded flattening roller and the second threaded flattening roller are symmetrical about the center line of the upper fixed seat, the upper fixed seat is detachably provided with a driving component, the driving component is transmission-connected with the first threaded flattening roller and the second threaded flattening roller through a transmission mechanism, the driving component is started to drive the first threaded flattening roller and the second threaded flattening roller to rotate in the same direction through the transmission mechanism, the first threaded flattening roller and the second threaded flattening roller respectively correspond to the agricultural film, the first threaded flattening roller and the second threaded flattening roller are both provided with inclined spiral edges, the first threaded flattening roller and the second threaded flattening roller are operated to apply a lateral expansion force to the agricultural film through the spiral edges, which will drive the agricultural film to be flattened from both sides of the middle phase;

[0007] Automatic adjustment mechanisms are provided at both ends of the first rotating shaft, and rotating balls are movably installed on the automatic adjustment mechanisms. The two rotating balls are rollingly connected to the inner sides of the two edges of the agricultural film, and the moving agricultural film is guided by the rotating balls. The automatic adjustment mechanism enables a flexible buffering function to be provided between the agricultural film and the first threaded flattening roller and the second threaded flattening roller.

[0008] During use of the above technical solution: starting the driving component drives the first thread flattening roller and the second thread flattening roller to rotate in the same direction through the transmission mechanism, operating the first thread flattening roller and the second thread flattening roller to apply lateral expansion force to the agricultural film through the screw ridges to drive the agricultural film to flatten from both sides of the middle phase, and through the automatic adjustment mechanism, a flexible buffer function is provided between the agricultural film and the first thread flattening roller and the second thread flattening roller, so that the agricultural film can be flattened from both sides of the middle phase, thereby improving the accuracy of the flattening of the agricultural film and preventing the width of the agricultural film from increasing during the flattening process, thereby causing the phenomenon of winding misalignment.

[0009] Preferably, the first thread flattening roller is provided with a thread, the pitch of the thread is 6-10cm, and the groove depth is 0.3-0.7CM. The second thread flattening roller has the same structure as the first thread flattening roller, and the thread rotation directions of the two are opposite. The inclination angle of the thread edge is 40-50°.

[0010] During use of the above technical solution, the screw ribs exert a lateral expansion force on the agricultural film, which will drive the agricultural film to flatten from both sides of the middle phase, while preventing the agricultural film from sinking into the screw groove and causing damage or wrinkles to the agricultural film.

[0011] Preferably, the first thread flattening roller and the second thread flattening roller are both provided with a first mounting hole, the first rotating shaft is rotatably installed in the first mounting hole, two symmetrical first limiting rings are arranged on the first rotating shaft, the first thread flattening roller and the second thread flattening roller are both provided with an annular limiting groove, the annular limiting groove is connected to the first mounting hole, and the first limiting ring is rotatably installed in the annular limiting groove.

[0012] Preferably, the automatic adjustment mechanism comprises a support tube slidably mounted on the first rotating shaft, an elastic component is arranged between the support tube and the first rotating shaft, a spherical groove body is fixedly arranged on the support tube, and the rotating ball is rotatably mounted in the spherical groove body.

[0013] Preferably, a first through hole is opened on the first rotating shaft, an elastic component is movably installed in the first through hole, a first sliding rod is fixedly arranged in the support tube, the first sliding rod is slidably installed in the first through hole, the first sliding rod and the first rotating shaft are connected by the elastic component, a first sliding groove is formed between the first sliding rod and the support tube, the first rotating shaft is slidably installed in the first sliding groove, and the spherical groove body is a 3 / 5 spherical groove.

[0014] During use, the above technical solution is connected to the inner side of the edge of the agricultural film by rolling through the rotating ball, and the rotating ball realizes 360-degree rotation in the spherical groove body, thus providing guidance for the agricultural film during its advancement and flattening.

[0015] Preferably, a lower fixed seat is fixedly provided at the lower end of the upper fixed seat, a second rotating shaft is rotatably mounted on the lower fixed seat, a third thread flattening roller and a fourth thread flattening roller are fixedly mounted on the second rotating shaft, the third thread flattening roller corresponds to the first thread flattening roller, and the fourth thread flattening roller corresponds to the second thread flattening roller, and the starting driving component drives the first thread flattening roller, the second thread flattening roller, the third thread flattening roller and the fourth thread flattening roller to rotate synchronously through the transmission mechanism, and the first thread flattening roller and the third thread flattening roller rotate in opposite directions, and the second thread flattening roller and the fourth thread flattening roller rotate in opposite directions.

[0016] Preferably, the transmission mechanism includes two symmetrical third transmission gears rotatably mounted between the upper fixed seat and the lower fixed seat, the first thread flattening roller and the second thread flattening roller are both provided with a first transmission gear, the third thread flattening roller and the fourth thread flattening roller are both provided with a second transmission gear, the first transmission gear is transmission-connected to the second transmission gear through the third transmission gear, the driving component is transmission-connected to the second rotating shaft, the starting driving component drives the third thread flattening roller and the fourth thread flattening roller to rotate through the second rotating shaft, and drives the first thread flattening roller and the second thread flattening roller to rotate through the third transmission gear.

[0017] During use of the above technical solution: the upper layer of the agricultural film is flattened from the middle to the two edges by the first threaded flattening roller and the second threaded flattening roller, and the lower layer of the agricultural film is flattened from the two sides to the middle by the third threaded flattening roller and the fourth threaded flattening roller, and the agricultural film is guided by the rotating ball, so that the agricultural film is fully flattened within the set width, thereby improving the flattening quality and preventing the width of the agricultural film from changing during the flattening process.

[0018] Preferably, a third sliding groove is provided in the first rotating shaft, and two symmetrical second sliding rods and a third sliding rod are slidably installed in the third sliding groove, and the second sliding rod and the third sliding rod are respectively connected and fixed to the two automatic adjustment mechanisms through connecting blocks, and the second sliding rod is fixedly provided with a first spur rack, and the third sliding rod is fixedly provided with a second spur rack, and the first spur rack corresponds to the second spur rack, and the third rotating shaft is rotatably installed on the upper fixed seat, and a fourth transmission gear is fixedly provided on the third rotating shaft, and the first spur rack and the second spur rack are both meshed with the fourth transmission gear, and a rotating disk is provided on the third rotating shaft, and the rotating disk and the upper fixed seat are connected by a limiting assembly.

[0019] During use of the above technical solution: the rotating disk is operated to drive the first spur rack and the second spur rack to move relative to or back to each other along the third sliding groove through the fourth transmission gear, and the distance between the automatic adjustment mechanisms at both ends of the first rotating shaft will be synchronously adjusted. The rotating disk is fixed to the upper fixed seat through the limit assembly, so that it is suitable for flattening and rolling up agricultural films of different widths.

[0020] The agricultural film production line comprises a frame and an extrusion device, a blow molding device, a slitting knife folding device, an edge rolling and heat sealing device and a winding device which are arranged on the frame in sequence. The upper fixing seat of the double edge rolling agricultural film wrinkle flattening device is installed on the frame and is located between the edge rolling and heat sealing device and the winding device. The double edge rolling agricultural film wrinkle flattening device is higher than the frame. A bow-shaped flattening device is detachably installed on the frame, and the bow-shaped flattening device is located between the double edge rolling agricultural film wrinkle flattening device and the winding device.

[0021] Preferably, the bow-shaped flattening device comprises two symmetrical mounting seats detachably mounted on a frame, an axis core is mounted on the mounting seats, an arch-shaped flattening roller is arranged on the axis core, and the agricultural film passes under the arch-shaped flattening roller.

[0022] During use of the above technical solution: the upper and lower layers of the agricultural film are bonded together through the bow-shaped flattening device, the air in the gap between the upper and lower layers is discharged, and the film is further flattened, thereby facilitating the winding work and improving the flatness and efficiency of the winding work.

[0023] After adopting the above technical solution, the beneficial effects of the present invention are:

[0024] 1. Start the driving component to drive the first thread flattening roller and the second thread flattening roller to rotate in the same direction through the transmission mechanism. The first thread flattening roller and the second thread flattening roller are operated to apply lateral expansion force to the agricultural film through the screw ridges to drive the agricultural film to flatten from both sides of the middle phase. The automatic adjustment mechanism is used to provide a flexible buffer function between the agricultural film and the first thread flattening roller and the second thread flattening roller, so that the agricultural film can be flattened from both sides of the middle phase, thereby improving the flattening accuracy of the agricultural film and preventing the width of the agricultural film from increasing during the flattening process, thereby preventing the phenomenon of winding dislocation from occurring;

[0025] 2. The upper layer of the agricultural film is flattened from the middle to the two edges by the first and second thread flattening rollers, and the lower layer of the agricultural film is flattened from the two sides to the middle by the third and fourth thread flattening rollers. The agricultural film is guided by the rotating ball so that the agricultural film is fully flattened within the set width, improving the flattening quality and preventing the width of the agricultural film from changing during the flattening process.

[0026] 3. The operating rotating disk drives the first spur rack and the second spur rack to move relative to or opposite to each other along the third sliding groove through the fourth transmission gear, and the distance between the automatic adjustment mechanisms at both ends of the first rotating shaft is synchronously adjusted, and the rotating disk is fixed to the upper fixed seat through the limit assembly, so as to be suitable for the flattening and winding of agricultural films of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the agricultural film production line of the present invention;

[0029] Figure 2This is a schematic diagram of the main structure of the agricultural film production line of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the main structure of the present invention;

[0032] Figure 5 It is a cross-sectional structural schematic diagram of the present invention;

[0033] Figure 6 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0034] Figure 7 It is a schematic diagram of the partial explosion structure of the present invention;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Fig. 9 For the present invention Figure 7 A schematic diagram of the local enlarged structure at point A in the middle;

[0037] Fig.10 For the present invention Figure 7 A schematic diagram of the local enlarged structure at B in the middle;

[0038] Fig.11 It is a partial cross-sectional structural schematic diagram of the present invention;

[0039] Fig.12 It is a schematic diagram of the three-dimensional structure of the first thread flattening roller of the present invention;

[0040] Fig.13 It is a three-dimensional structural schematic diagram of the automatic adjustment mechanism of the present invention;

[0041] Fig.14 It is a cross-sectional structural schematic diagram of the automatic adjustment mechanism of the present invention;

[0042] Fig.15 It is a schematic diagram of the three-dimensional structure of the bow-shaped flattening roller of the present invention;

[0043] Fig.16 It is a cross-sectional structural schematic diagram of the third embodiment of the present invention;

[0044] Fig.17 It is a schematic diagram of a partial three-dimensional structure of the third embodiment of the present invention;

[0045] In the figure, 1, agricultural film; 2, edge rolling part; 3, upper fixed seat; 4, first rotating shaft; 5, first limiting ring; 6, first through hole; 7, first limiting block; 8, first thread flattening roller; 801, thread; 802, screw edge; 9, first transmission gear; 10, second through hole; 11, first mounting hole; 12, second thread flattening roller; 13, automatic adjustment mechanism; 1301, support tube; 1302, first sliding rod; 1303, elastic component; 1304, first limiting groove; 1305, spherical groove body; 1306, rotating ball; 1307, first sliding groove; 14, second mounting hole; 15, lower fixed seat; 16, second rotating shaft; 17, first support frame ; 18. first sprocket; 19. driving component; 20. second sprocket; 21. chain; 22. third thread flattening roller; 23. second transmission gear; 24. fourth thread flattening roller; 25. second support frame; 26. third transmission gear; 27. mounting seat; 28. shaft core; 29. ​​bow-shaped flattening roller; 30. second limiting groove; 31. third through hole; 32. screw hole; 33. third rotating shaft; 34. fourth transmission gear; 35. rotating disk; 36. fourth through hole; 37. inner hexagon groove; 38. third sliding groove; 39. second sliding rod; 40. first straight rack; 41. connecting block; 42. third sliding rod; 43. second straight rack; 44. frame; DETAILED DESCRIPTION

[0046] 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.

[0047] Embodiment 1

[0048] like Figures 1 to 17As shown, a double-edge rolled agricultural film wrinkle flattening device comprises an upper fixed seat 3 and an agricultural film 1, wherein the agricultural film 1 is provided with two symmetrical rolled edge portions 2, the upper fixed seat 3 is located between the two symmetrical rolled edge portions 2, a first rotating shaft 4 is fixedly provided on the upper fixed seat 3, a first threaded flattening roller 8 and a second threaded flattening roller 12 are rotatably mounted on the first rotating shaft 4, the first threaded flattening roller 8 and the second threaded flattening roller 12 are symmetrical about the center line of the upper fixed seat 3, a driving component 19 is detachably mounted on the upper fixed seat 3, and the driving component 19 is connected to the upper fixed seat 3. The first thread flattening roller 8 and the second thread flattening roller 12 are connected to each other through the transmission mechanism, and the driving component 19 is started to drive the first thread flattening roller 8 and the second thread flattening roller 12 to rotate in the same direction through the transmission mechanism. The first thread flattening roller 8 and the second thread flattening roller 12 correspond to the agricultural film 1 respectively. The first thread flattening roller 8 and the second thread flattening roller 12 are both provided with inclined screw ridges 802. The first thread flattening roller 8 and the second thread flattening roller 12 are operated to apply a lateral expansion force to the agricultural film 1 through the screw ridges 802, which drives the agricultural film 1 to be flattened from both sides of the middle phase;

[0049] Automatic adjustment mechanisms 13 are provided at both ends of the first rotating shaft 4, and rotating balls 1306 are movably installed on the automatic adjustment mechanism 13. The two rotating balls 1306 are rollingly connected to the inner sides of the two edges of the agricultural film 1. The moving agricultural film 1 is guided by the rotating balls 1306, and the automatic adjustment mechanism 13 is used to provide a flexible buffering function between the agricultural film 1 and the first threaded flattening roller 8 and the second threaded flattening roller 12.

[0050] In actual operation: start the driving component 19 to drive the first thread flattening roller 8 and the second thread flattening roller 12 to rotate in the same direction through the transmission mechanism, operate the first thread flattening roller 8 and the second thread flattening roller 12 to apply lateral expansion force to the agricultural film 1 through the screw ridges 802 to drive the agricultural film 1 to be flattened from both sides of the middle phase, and through the automatic adjustment mechanism 13, the agricultural film 1 and the first thread flattening roller 8 and the second thread flattening roller 12 have a flexible buffering function, so that the agricultural film 1 can be flattened from both sides of the middle phase, thereby improving the accuracy of the flattening of the agricultural film 1 and preventing the width of the agricultural film 1 from increasing during the flattening process, thereby causing the winding misalignment phenomenon.

[0051] The first thread flattening roller 8 is provided with a thread 801, and the second thread flattening roller 12 has the same structure as the first thread flattening roller 8, and the threads 801 therebetween have opposite rotation directions;

[0052] The first thread flattening roller 8 and the second thread flattening roller 12 are both provided with a first mounting hole 11, the first rotating shaft 4 is rotatably installed in the first mounting hole 11, two symmetrical first limiting rings 5 ​​are arranged on the first rotating shaft 4, the first thread flattening roller 8 and the second thread flattening roller 12 are both provided with annular limiting grooves, the annular limiting grooves are connected to the first mounting hole 11, and the first limiting rings 5 ​​are rotatably installed in the annular limiting grooves.

[0053] The automatic adjustment mechanism 13 includes a support tube 1301 slidably mounted on the first rotating shaft 4 , an elastic component 1303 is arranged between the support tube 1301 and the first rotating shaft 4 , a spherical groove body 1305 is fixedly arranged on the support tube 1301 , and the rotating ball 1306 is rotatably mounted in the spherical groove body 1305 .

[0054] A first through hole 6 is provided on the first rotating shaft 4, and an elastic component 1303 is movably installed in the first through hole 6. A first sliding rod 1302 is fixedly provided in the support tube 1301. The first sliding rod 1302 is slidably installed in the first through hole 6. The first sliding rod 1302 and the first rotating shaft 4 are connected by the elastic component 1303. A first sliding groove 1307 is formed between the first sliding rod 1302 and the support tube 1301. The first rotating shaft 4 is slidably installed in the first sliding groove 1307, and the spherical groove body 1305 is a 3 / 5 spherical groove.

[0055] Specifically: the elastic component 1303 is an adaptive spring, one end of the adaptive spring is welded to the first rotating shaft 4, and the other end of the adaptive spring is welded to the first sliding rod 1302. The support tube 1301 is fixedly provided with a first limiting groove 1304, and the number of the first limiting grooves 1304 is multiple, and the multiple first limiting grooves 1304 are uniformly distributed on the support tube 1301 in the circumferential direction. The first rotating shaft 4 is fixedly provided with a plurality of first limiting blocks 7, and the first limiting blocks 7 are slidably installed in the first limiting grooves 1304;

[0056] The first thread flattening roller 8 and the second thread flattening roller 12 are both provided with a second through hole 10, and the support tube 1301 is movably inserted into the second through hole 10;

[0057] In actual operation: the rotating ball 1306 is connected to the inner side of the edge of the agricultural film 1 by rolling, and when the agricultural film 1 moves, the rotating ball 1306 is driven to rotate along the spherical groove 1305, thereby reducing the friction between the rotating ball 1306 and the agricultural film 1, and preventing the rotating ball 1306 from damaging the agricultural film 1. When the force between the agricultural film 1 and the rotating ball 1306 is large, the rotating ball 1306 pushes the support tube 1301 to slide along the first rotating axis 4, and compresses the elastic component 1303 to adjust the position of the rotating ball 1306. When the force between the agricultural film 1 and the rotating ball 1306 is less than the rebound force of the elastic component 1303, the rotating ball 1306 is pushed to reset under the action of the elastic component 1303, and the adaptive adjustment effect is achieved.

[0058] Embodiment 2

[0059] Based on the first embodiment, Figures 1 to 17 As shown, a lower fixed seat 15 is fixedly provided at the lower end of the upper fixed seat 3, and a second rotating shaft 16 is rotatably installed on the lower fixed seat 15, and a third thread flattening roller 22 and a fourth thread flattening roller 24 are fixedly mounted on the second rotating shaft 16, and the third thread flattening roller 22 corresponds to the first thread flattening roller 8, and the fourth thread flattening roller 24 corresponds to the second thread flattening roller 12. The starting driving component 19 drives the first thread flattening roller 8, the second thread flattening roller 12, the third thread flattening roller 22 and the fourth thread flattening roller 24 to rotate synchronously through the transmission mechanism, and the first thread flattening roller 8 and the third thread flattening roller 22 rotate in opposite directions, and the second thread flattening roller 12 and the fourth thread flattening roller 24 rotate in opposite directions.

[0060] The transmission mechanism includes two symmetrical third transmission gears 26 rotatably mounted between the upper fixed seat 3 and the lower fixed seat 15. The first transmission gear 9 is provided on the first thread flattening roller 8 and the second thread flattening roller 12. The third thread flattening roller 22 and the fourth thread flattening roller 24 are provided with a second transmission gear 23. The first transmission gear 9 is transmission-connected to the second transmission gear 23 through the third transmission gear 26. The driving component 19 is transmission-connected to the second rotating shaft 16. When the driving component 19 is started, the third thread flattening roller 22 and the fourth thread flattening roller 24 are driven to rotate through the second rotating shaft 16, and the first thread flattening roller 8 and the second thread flattening roller 12 are driven to rotate through the third transmission gear 26.

[0061] Specifically: a second support frame 25 is welded to the lower end of the upper fixed seat 3, and the lower end surface of the second support frame 25 is welded to the lower fixed seat 15. A fourth rotating shaft is rotatably installed in the middle of the second support frame 25, and third transmission gears 26 are fixedly arranged at both ends of the fourth rotating shaft. The third transmission gear 26 is meshed with the first transmission gear 9 through gears, and the third transmission gear 26 is meshed with the second transmission gear 23 through gears. A second mounting hole 14 is opened on the lower fixed seat 15, and the second rotating shaft 16 is rotatably installed in the second mounting hole 14. The lower fixed seat 15 is welded to the first support frame 17, and the first support frame 17 is fixed to the frame 44. The driving component 19 is a forward and reverse servo motor, and the forward and reverse servo motor is installed on the first support frame 17 through bolts and nuts. The first thread flattening roller 8 has the same direction as the third thread flattening roller 22, and the second thread flattening roller 12 has the same direction as the fourth thread flattening roller 24.

[0062] In actual operation: start the forward and reverse servo motor to rotate through the second sprocket 20, the second sprocket 20 drives the first sprocket 18 to rotate through the chain 21, the first sprocket 18 drives the second rotating shaft 16 to rotate, and the third thread flattening roller 22 and the fourth thread flattening roller 24 are driven to rotate through the second rotating shaft 16, and the second transmission gear 23 is driven to rotate at the same time, the second transmission gear 23 drives the first transmission gear 9 to rotate through the third transmission gear 26, the first transmission gear 9 drives the first thread flattening roller 8 and the second thread flattening roller 12 to rotate along the first rotating shaft 4, at this time, the first thread flattening roller 8 and the third thread flattening roller 22 rotate in opposite directions.

[0063] Embodiment 3

[0064] Based on the second embodiment, Fig.10 , Fig.16 and Fig.17 As shown, a third sliding groove 38 is provided in the first rotating shaft 4, and two symmetrical second sliding rods 39 and third sliding rods 42 are slidably installed in the third sliding groove 38. The second sliding rod 39 and the third sliding rod 42 are respectively connected and fixed to the two automatic adjustment mechanisms 13 through connecting blocks 41. The second sliding rod 39 is fixedly provided with a first spur rack 40, and the third sliding rod 42 is fixedly provided with a second spur rack 43. The first spur rack 40 corresponds to the second spur rack 43. The third rotating shaft 33 is rotatably installed on the upper fixed seat 3, and the fourth transmission gear 34 is fixedly provided on the third rotating shaft 33. The first spur rack 40 and the second spur rack 43 are both meshed with the fourth transmission gear 34. A rotating disk 35 is provided on the third rotating shaft 33, and the rotating disk 35 is connected to the upper fixed seat 3 through a limiting assembly.

[0065] Specifically: the upper fixed seat 3 is provided with a second limiting groove 30, the second limiting groove 30 is annular, the rotating disk 35 is rotatably installed in the second limiting groove 30, the upper fixed seat 3 is provided with a third through hole 31, the third rotating shaft 33 is rotatably installed in the third through hole 31, the third through hole 31 passes through the first rotating shaft 4 and is connected with the third sliding groove 38, the second limiting groove 30 of the upper fixed seat 3 is provided with a plurality of screw holes 32, and the plurality of screw holes 32 are uniformly distributed on the upper fixed seat 3 in the circumferential direction, the rotating disk 35 is provided with a fourth through hole 36 and a hexagonal groove 37, the fourth through hole 36 corresponds to the screw hole 32, and a bolt passes through the fourth through hole 36 and is connected with the screw hole 32 thread 801, so as to fix the rotating disk 35 in the second limiting groove 30;

[0066] The cross section of the third sliding groove 38 is preferably square, the second sliding rod 39 and the third sliding rod 42 are both cubes, the second sliding rod 39 is slidably installed in the third sliding groove 38, the connecting block 41 is cylindrical, and the connecting block 41 is the same as the first rotating shaft 4. In this embodiment, the first through hole 6 and the first limit block 7 are installed on the connecting block 41;

[0067] In actual operation: remove the bolts, insert a hexagonal wrench into the hexagonal groove 37, drive the rotating disk 35 to rotate, drive the third rotating shaft 33 to rotate through the rotating disk 35, drive the fourth transmission gear 34 to rotate through the third rotating shaft 33, drive the first spur rack 40 and the second spur rack 43 to move synchronously through the fourth transmission gear 34, the first spur rack 40 and the second spur rack 43 move relative to or back to back along the third sliding groove 38, and synchronously adjust the distance between the automatic adjustment mechanisms 13 at both ends of the first rotating shaft 4 to a suitable position, and fix the rotating disk 35 in the second limiting groove 30 by passing the bolt through the fourth through hole 36 and connecting it to the thread 801 of the screw hole 32.

[0068] Embodiment 4

[0069] Based on the first embodiment, the pitch of the thread 801 is 6-10 cm, the groove depth is 0.3-0.7 cm, and the inclination angle of the screw fin 802 is 40-50°.

[0070] In actual operation, the lateral expansion force applied to the agricultural film 1 by the screw ribs 802 will drive the agricultural film 1 to flatten from both sides of the middle phase, while preventing the agricultural film 1 from sinking into the groove of the screw thread 801 to cause damage or wrinkles to the agricultural film 1.

[0071] The agricultural film production line includes a frame 44 and an extrusion device, a blow molding device, a slitting knife folding device, a rolling and heat-sealing device and a winding device which are sequentially arranged on the frame 44. The upper fixing seat 3 of the double-rolled-edge agricultural film wrinkle flattening device is installed on the frame 44 and is located between the rolling and heat-sealing device and the winding device. The double-rolled-edge agricultural film wrinkle flattening device is higher than the frame 44. A bow-shaped flattening device is detachably installed on the frame 44, and the bow-shaped flattening device is located between the double-rolled-edge agricultural film wrinkle flattening device and the winding device.

[0072] Specifically: the extrusion device, the blow molding device, the slitting edge folding device, the edge rolling heat sealing device and the winding device are all existing well-known technologies and are not described here;

[0073] The bow-shaped flattening device comprises two symmetrical mounting seats 27 detachably mounted on a frame 44 , an axis core 28 is mounted on the mounting seats 27 , an arc-shaped flattening roller 29 is arranged on the axis core 28 , and the agricultural film 1 passes under the arc-shaped flattening roller 29 .

[0074] In actual operation: the upper and lower layers of the agricultural film 1 are bonded together through the bow-shaped flattening device, the air in the gap between the upper and lower layers is discharged, and the film is further flattened, so as to facilitate the rolling work and improve the flatness and efficiency of the rolling work.

[0075] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double-edged agricultural film wrinkle flattening device, comprising an upper fixing seat (3) and two symmetrical edge-rolling parts (2), wherein the upper fixing seat (3) is located between the two symmetrical edge-rolling parts (2), and characterized in that: The upper fixed seat (3) is fixedly provided with a first rotating shaft (4), and a first thread flattening roller (8) and a second thread flattening roller (12) are rotatably mounted on the first rotating shaft (4), and the first thread flattening roller (8) and the second thread flattening roller (12) are symmetrical about the center line of the upper fixed seat (3). A driving component (19) is detachably mounted on the upper fixed seat (3), and the driving component (19) is transmission-connected to the first thread flattening roller (8) and the second thread flattening roller (12) through a transmission mechanism, and the driving component is started (19) the first thread flattening roller (8) and the second thread flattening roller (12) are driven to rotate in the same direction through a transmission mechanism, the first thread flattening roller (8) and the second thread flattening roller (12) respectively correspond to the agricultural film (1), and the first thread flattening roller (8) and the second thread flattening roller (12) are both provided with inclined screw ridges (802). The first thread flattening roller (8) and the second thread flattening roller (12) are operated to apply a lateral expansion force to the agricultural film (1) through the screw ridges (802), thereby driving the agricultural film (1) to be flattened from the middle to both sides; Automatic adjustment mechanisms (13) are provided at both ends of the first rotating shaft (4), and rotating balls (1306) are movably installed on the automatic adjustment mechanism (13). The two rotating balls (1306) are rollingly connected to the inner sides of the two edges of the agricultural film (1), and the moving agricultural film (1) is guided by the rotating balls (1306). The automatic adjustment mechanism (13) enables a flexible buffering function to be provided between the agricultural film (1) and the first threaded flattening roller (8) and the second threaded flattening roller (12).

2. A double-edge rolled agricultural film wrinkle flattening device according to claim 1, characterized in that: The first thread flattening roller (8) is provided with a thread (801), the pitch of the thread (801) is 6-10 cm, and the groove depth is 0.3-0.7 cm. The second thread flattening roller (12) has the same structure as the first thread flattening roller (8), and the threads (801) therebetween have opposite rotation directions, and the inclination angle of the thread ridge (802) is 40-50°.

3. The double-edge rolled agricultural film wrinkle flattening device according to claim 1, characterized in that: The first thread flattening roller (8) and the second thread flattening roller (12) are both provided with a first mounting hole (11), the first rotating shaft (4) is rotatably mounted in the first mounting hole (11), the first rotating shaft (4) is provided with two symmetrical first limiting rings (5), the first thread flattening roller (8) and the second thread flattening roller (12) are both provided with an annular limiting groove, the annular limiting groove is connected to the first mounting hole (11), and the first limiting ring (5) is rotatably mounted in the annular limiting groove.

4. A double-edge rolled agricultural film wrinkle flattening device according to claim 1 or 3, characterized in that: The automatic adjustment mechanism (13) comprises a support tube (1301) slidably mounted on a first rotating shaft (4), an elastic component (1303) is arranged between the support tube (1301) and the first rotating shaft (4), a spherical groove body (1305) is fixedly arranged on the support tube (1301), and the rotating ball (1306) is rotatably mounted in the spherical groove body (1305).

5. The double-edge rolled agricultural film wrinkle flattening device according to claim 4, characterized in that: The first rotating shaft (4) is provided with a first through hole (6), an elastic component (1303) is movably installed in the first through hole (6), a first sliding rod (1302) is fixedly arranged in the support tube (1301), the first sliding rod (1302) is slidably installed in the first through hole (6), the first sliding rod (1302) and the first rotating shaft (4) are connected via the elastic component (1303), a first sliding groove (1307) is formed between the first sliding rod (1302) and the support tube (1301), the first rotating shaft (4) is slidably installed in the first sliding groove (1307), and the spherical groove body (1305) is a 3 / 5 spherical groove.

6. The double-edge rolled agricultural film wrinkle flattening device according to claim 4, characterized in that: A lower fixed seat (15) is fixedly arranged at the lower end of the upper fixed seat (3); a second rotating shaft (16) is rotatably mounted on the lower fixed seat (15); a third thread flattening roller (22) and a fourth thread flattening roller (24) are fixedly mounted on the second rotating shaft (16); the third thread flattening roller (22) corresponds to the first thread flattening roller (8); the fourth thread flattening roller (24) corresponds to the second thread flattening roller (12); a starting driving component (19) drives the first thread flattening roller (8), the second thread flattening roller (12), the third thread flattening roller (22) and the fourth thread flattening roller (24) to rotate synchronously through a transmission mechanism; the first thread flattening roller (8) and the third thread flattening roller (22) rotate in opposite directions; and the second thread flattening roller (12) and the fourth thread flattening roller (24) rotate in opposite directions.

7. A double-edge rolled agricultural film wrinkle flattening device according to claim 6, characterized in that: The transmission mechanism comprises two symmetrical third transmission gears (26) rotatably mounted between the upper fixed seat (3) and the lower fixed seat (15); the first thread flattening roller (8) and the second thread flattening roller (12) are both provided with a first transmission gear (9); the third thread flattening roller (22) and the fourth thread flattening roller (24) are both provided with a second transmission gear (23); the first transmission gear (9) is transmission-connected to the second transmission gear (23) through the third transmission gear (26); the driving component (19) is transmission-connected to the second rotating shaft (16); when the driving component (19) is started, the third thread flattening roller (22) and the fourth thread flattening roller (24) are driven to rotate through the second rotating shaft (16); and the first thread flattening roller (8) and the second thread flattening roller (12) are driven to rotate through the third transmission gear (26).

8. The double-edge rolled agricultural film fold flattening device according to claim 1, characterized in that: A third sliding groove (38) is provided in the first rotating shaft (4), and two symmetrical second sliding rods (39) and a third sliding rod (42) are slidably installed in the third sliding groove (38). The second sliding rod (39) and the third sliding rod (42) are respectively connected and fixed to the two automatic adjustment mechanisms (13) through connecting blocks (41). The second sliding rod (39) is fixedly provided with a first straight rack (40), and the third sliding rod (42) is fixedly provided with a second straight rack (43). The first straight rack (40) corresponds to the second straight rack (43). The third rotating shaft (33) is rotatably installed on the upper fixed seat (3). A fourth transmission gear (34) is fixedly arranged on the shaft (33); the first spur rack (40) and the second spur rack (43) are both meshed with the fourth transmission gear (34); a rotating disk (35) is arranged on the third rotating shaft (33); the rotating disk (35) is connected to the upper fixed seat (3) through a limit assembly; the rotating disk (35) is operated to drive the first spur rack (40) and the second spur rack (43) to move relative to or opposite to each other along the third sliding groove (38) through the fourth transmission gear (34); the distance between the automatic adjustment mechanisms (13) at both ends of the first rotating shaft (4) is synchronously adjusted, and the rotating disk (35) is fixed to the upper fixed seat (3) through the limit assembly.

9. Agricultural film production line, characterized in that: A double-edge rolled agricultural film wrinkle flattening device as described in any one of claims 1 to 8 is installed, comprising a frame (44) and an extrusion device, a blow molding device, a slitting knife folding device, an edge rolling heat sealing device and a winding device arranged on the frame (44) in sequence, the upper fixed seat (3) of the double-edge rolled agricultural film wrinkle flattening device is installed on the frame (44) and is located between the edge rolling heat sealing device and the winding device, the double-edge rolled agricultural film wrinkle flattening device is higher than the frame (44), and a bow-shaped flattening device is detachably installed on the frame (44), and the bow-shaped flattening device is located between the double-edge rolled agricultural film wrinkle flattening device and the winding device.

10. The agricultural film production line according to claim 9, characterized in that: The bow-shaped flattening device comprises two symmetrical mounting seats (27) which are detachably mounted on a frame (44); an axis core (28) is mounted on the mounting seats (27); a bow-shaped flattening roller (29) is arranged on the axis core (28); and the agricultural film (1) passes under the bow-shaped flattening roller (29).

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