Non-vector symmetric mulch and mulch slitting machine

Abstract

Non-vector symmetry mulch and mulch slitting machine relates to the technical field of mulch, and is used to solve the problem of increasing workload and being difficult to keep stable space temperature between the mulch and the ground surface, which is caused by additional slitting of the mulch after sowing and mulching. The non-vector symmetry mulch has slits with equal intervals; the slit is V-shaped. The slitting machine includes a rack, a winding roller, a guide assembly, a support table and a slitting assembly. The winding roller is located at the rear end of the rack for winding the mulch. The guide assembly extends from the front end of the rack to the rear end of the rack for guiding the mulch to keep a tensioned state. The support table is located at the middle part of the rack and the upper surface of the support table is in contact with the mulch. The slitting assembly includes a slitting roller, a slitting box and a driving mechanism. The mulch is provided with slits. After laying the mulch, the seed can extend out through the slit to realize seedling emergence. The slitting machine can slit the mulch during winding the mulch.

Description

Technical Field

[0001] This invention relates to the field of mulch film technology, specifically to a non-vector symmetric mulch film and a mulch film opening machine. Background Technology

[0002] Mulch film is used to cover the ground surface and work with the soil to create a suitable environment for seed germination and seedling emergence. In existing technologies, when sowing and mulching, it is necessary to punch holes in the mulch film to facilitate seed emergence. This additional punching increases workload, and the space between the mulch film and the ground surface is constantly connected to the external environment after punching, making it difficult to maintain a stable temperature in this space, which is detrimental to seed germination and seedling emergence. Summary of the Invention

[0003] The purpose of this invention is to provide a non-vector symmetric mulch film and a mulch film slitting machine to solve the problem that the mulch film needs to be slit after sowing and covering, which increases the workload and makes it difficult to maintain a stable temperature between the mulch film and the ground surface, thus hindering seedling emergence.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a non-vector symmetric mulch film, wherein the mulch film has equally spaced slits; the slits are V-shaped; or the slits include a first segment, a second segment, and a third segment arranged in sequence, wherein the first segment and the third segment are symmetrically arranged about the second segment, the first end of the second segment is connected to the first segment, the second end of the second segment is connected to the third segment, and the first segment and the second segment, as well as the third segment and the second segment, form obtuse angles.

[0005] Furthermore, the gaps are arranged in multiple rows at intervals.

[0006] Furthermore, the gaps have multiple columns, and in each pair of adjacent columns, the two gaps in the same row are connected end to end.

[0007] The present invention also provides a non-vector-symmetric mulch film slitting machine, comprising a frame, a take-up roller, a guide assembly, a support platform, and a slitting assembly. The take-up roller is located at the rear end of the frame for winding the mulch film. The guide assembly extends from the front end of the frame to the rear end for guiding the mulch film to maintain a taut state. The support platform is located in the middle of the frame and the mulch film contacts the upper surface of the support platform. The slitting assembly includes a slitting roller, a slitting box, and a drive mechanism. The slitting roller is located above the support platform and has slitting blades evenly spaced on its outer wall. The slitting box is fixed on the frame. The drive mechanism is located inside the slitting box for driving the slitting roller to move up and down and rotate. The rotating slitting roller and the support platform squeeze the mulch film located between them to slit it.

[0008] Furthermore, the guiding assembly includes a first guide roller, a second guide roller, and a third guide roller. The first and second guide rollers are located on the front side of the support platform, and the third guide roller is located on the rear side of the support platform. The highest point of the second guide roller and the highest point of the third guide roller are coplanar with the upper surface of the support platform, and the lowest point of the first guide roller is located between the highest and lowest points of the second guide roller.

[0009] Furthermore, the front end of the support platform has a water cavity containing cooling water, which is used to cool the upper surface of the support platform.

[0010] Furthermore, it also includes a detection component, which includes a detection box located above the rear end of the support platform. The detection box contains a detection camera. The rear end of the support platform has a mounting cavity containing a lighting lamp. The upper part of the mounting cavity has transparent glass that is coplanar with the upper surface of the support platform. The detection box provides a dark environment for the mulch film located on the transparent glass. After the lighting lamp emits light, the detection camera captures images of the gaps on the mulch film.

[0011] Furthermore, the drive mechanism includes a cylinder, a lifting platform, a slit motor, a driving bevel gear, and a driven bevel gear. The slit roller is rotatably mounted with a support shaft, which is fixed to the upper end of the lifting platform. The slit motor is fixed to the lower end of the lifting platform. The driving bevel gear is fixed to the output shaft of the slit motor. The driven bevel gear is fixed to the end of the slit roller and meshes with the driving bevel gear. The cylinder is fixed inside the slit box, and the cylinder piston rod is fixedly connected to the bottom of the lifting platform.

[0012] Furthermore, there are two slit rollers arranged one in front of the other, and the slits on the mulch film of the two slit rollers are the same shape. The slits on the mulch film of the two slit rollers together form a gap, and there is a distance of 0.3mm-0.6mm between the slits on the mulch film of the two slit rollers.

[0013] The beneficial effects of this invention are: by setting gaps in the mulch film, seeds can emerge through the gaps after the mulch film is laid. The slit-opening machine of this invention can open the mulch film during the winding process. Attached Figure Description

[0014] Figure 1 This is a plan view of a first embodiment of the non-vector symmetric mulch film of the present invention; Figure 2 This is a plan view of Embodiment 2 of the non-vector symmetric mulch film of the present invention; Figure 3 This is a plan view of Embodiment 3 of the non-vector symmetric mulch film of the present invention; Figure 4 This is a plan view of Embodiment 4 of the non-vector symmetric mulch film of the present invention; Figure 5 A side view of the non-vector-symmetric plastic film being drilled for seedlings; Figure 6 This is a front view of the mulch film slitting machine of the present invention; Figure 7 This is a front view of the guide component of the present invention; Figure 8 This is a cross-sectional view of the support platform of the present invention; Figure 9 One of the three-dimensional views of the slit roller of the present invention; Figure 10 This is the second three-dimensional view of the slit roller of the present invention; Figure 11 This is a right view of a first embodiment of the slit roller of the present invention; Figure 12 This is a cross-sectional view of a first embodiment of the slit roller of the present invention; Figure 13 This is a rear view of the slotted assembly of the present invention; Figure 14 This is a right view of the slotted assembly of the present invention; Figure 15 This is a cross-sectional view of the detection box of the present invention; Figure 16 This is a three-dimensional view of Embodiment 2 of the slit roller of the present invention; Figure 17 This is a top view of the second embodiment of the slit roller of the present invention; Figure 18 This is a schematic diagram of the front slit roller after it has slit the mulch film in Embodiment 2 of the present invention; Figure 19 This is a schematic diagram of the rear slit roller after it has slit the mulch film in Embodiment 2 of the present invention. Figure 20 This is a schematic diagram of the slit roller after it has slit the mulch film according to Embodiment 2 of the present invention; Figure 21 for Figure 20 Enlarged view of section A in the image; In the diagram: 1. Mulch film, 11. Slit, 111. First section, 112. Second section, 113. Third section, 12. Folding section, 2. Rewinding roller, 3. Guide assembly, 31. First guide roller, 32. Second guide roller, 33. Third guide roller, 4. Support platform, 41. Water chamber, 42. Water inlet, 43. Drain, 44. Cooling water, 45. Transparent glass, 46. Lighting lamp, 47. Mounting cavity, 5. Slit roller, 51. Slit cutter, 52. Support shaft, 53. Driven bevel gear, 54. Lifting platform, 55. Cylinder, 56. Slit box, 57. Driven bevel gear, 58. Slit motor, 6. Detection box, 61. Detection camera, 7. Frame, 8. Seedling, 9. Soil. Detailed Implementation

[0015] like Figures 1 to 4 As shown, the present invention provides gaps 11 in the plastic film 1 to facilitate crop emergence. Figures 6 to 17 As shown, the slit-opening machine of the present invention includes a frame 7, a take-up roller 2, a guide assembly 3, a support platform 4, and a slit-opening assembly, which slits the mulch film 1 during the winding process. The structure and working principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] like Figures 1 to 4 As shown, the non-vector-symmetric mulch film of the present invention has equally spaced slits 11, and the slits 11 are arranged along the length direction of the mulch film 1. Figure 1 As shown, in a first embodiment of the mulch film 1, the slits 11 on the mulch film 1 have a V-shaped symmetrical structure. The three vertices of the V-shaped slit 11 form a triangle, so that when the slit 11 is lifted, a triangular gap is formed, and the large area of ​​this gap is conducive to seedling emergence. The included angles of the slits 11 can be connected or non-connected. Figure 21 As shown, when the angle of the gap 11 is not connected, the gap 11 is still a symmetrical structure. At this time, the gap 11 is composed of two straight seams that are spaced apart, and there is a gap L between the two straight seams. The size of the gap L is 0.3mm-0.6mm.

[0017] When the angle of gap 11 is not connected, the part of the mulch film at gap 11 is still connected to the main body of mulch film 1, thereby preventing the mulch film at gap 11 from collapsing.

[0018] like Figure 2 As shown, in a second embodiment of the mulch film 1, the gaps 11 on the mulch film 1 are V-shaped, with two rows of gaps 11 spaced apart. When the planting row spacing of crops is short, using the mulch film 1 with two rows of gaps 11 can reduce the workload of laying the mulch film 1. Of course, the gaps 11 can also be set to three, four, or even more rows.

[0019] like Figure 3 As shown, in a third embodiment of the mulch film 1, the gaps 11 on the mulch film 1 are V-shaped, with two rows of gaps 11 connected end-to-end. Specifically, the two gaps 11 in the same row of each pair of adjacent rows are connected end-to-end, thus forming a "W" shape, or an "M" shape. In this embodiment, the lateral length of a single gap can be set relatively short. This creates three triangles at the gaps 11, allowing seedlings to emerge by pushing open the mulch film at any of these triangles. Keeping the mulch film close to the ground surface at the remaining triangular positions ensures proper temperature control between the mulch film and the ground. In this embodiment, the requirement for sowing precision is relatively low. The area of ​​the mulch film pushed open after crop emergence is relatively small, resulting in better heat retention.

[0020] like Figure 4As shown, in a fourth embodiment of the mulch film 1, the gap 11 on the mulch film 1 includes a first segment 111, a second segment 112, and a third segment 113 arranged sequentially. The first segment 111 and the third segment 113 are symmetrically arranged about the second segment 112. The first end of the second segment 112 connects to the first segment 111, and the second end of the second segment 112 connects to the third segment 113. The angles between the first segment 111 and the second segment 112, and between the third segment 113 and the second segment 112, are both obtuse angles. In this case, the four vertices of the gap 11 form an isosceles trapezoid. In this embodiment, the area of ​​the mulch film 1 that can be lifted at the gap 11 is larger, which is more conducive to crop emergence and suitable for areas with small temperature variations.

[0021] like Figure 5 As shown, after the plastic film 1 is laid on the ground, the plastic film 1 at the gap 11 will be pushed open when the crop seedlings emerge. The setting of the gap 11 greatly reduces the resistance when the crop seedlings emerge, which is conducive to the emergence.

[0022] To achieve the processing of the gaps 11 on the mulch film 1, the present invention also provides a mulch film opening machine for non-vector-symmetric mulch film, such as... Figure 6 As shown, the machine includes a frame 7, a take-up roller 2, a guide assembly 3, a support platform 4, and a slit assembly. The frame 7 is the basic structure of the slit machine. The take-up roller 2, located at the rear end of the frame 7, is used to wind the plastic film 1. During the winding process, the slit assembly, located at the front end of the frame 7, slits the plastic film 1. A guide assembly is provided on the frame 7 to facilitate the winding and slitting of the plastic film 1. Figure 6 As shown, the guide assembly extends from the front end of the frame 7 to the rear end of the frame 7 to guide the mulch film 1 to maintain tension. Figure 7 As shown, the guiding assembly 3 includes a first guide roller 31, a second guide roller 32, and a third guide roller 33. The first guide roller 31 and the second guide roller 32 are located on the front side of the support platform 4, and the third guide roller 33 is located on the rear side of the support platform 4. The highest points of the second guide roller 32 and the third guide roller 33 are coplanar with the upper surface of the support platform 4, and the lowest point of the first guide roller 31 is located between the highest and lowest points of the second guide roller 32. Under the action of the above-described guiding assembly, the mulch film 1 is introduced to the second guide roller 32 at an upward angle and remains horizontal between the second guide roller 32 and the third guide roller 33. Between the third guide roller 33 and the take-up roller 2, the mulch film 1 moves out at a downward angle.

[0023] like Figure 6 As shown, the support platform 4 is located in the middle of the frame 7, and the mulch film 1 is in contact with the upper surface of the support platform 4. The slit assembly includes a slit roller 5, a slit box 56, and a drive mechanism. The slit roller 5 is located above the support platform 4, as shown. Figures 9 to 12 As shown, the outer wall of the slit roller 5 has slit cutters 51 arranged at equal intervals, and the shape of the slit cutters 51 is the same as the shape of the slits on the mulch film 1. Figure 6As shown, the slotted box 56 is fixed on the frame 7, as... Figure 14 As shown, the drive mechanism, located within the slit box 56, drives the slit roller 5 to move up and down and rotate. During rotation, the slit roller 5 presses against the support platform 4 to slit the mulch film 1 located between them. Before slitting, the drive mechanism drives the slit roller 5 upwards to allow the mulch film 1 to pass through the guide assembly and be pre-fixed onto a section of the take-up roller 2. During slitting, the drive mechanism drives the slit roller 5 downwards until it contacts the support platform 4.

[0024] As one implementation method of the drive mechanism, such as Figure 13 , Figure 14 As shown, the drive mechanism includes a cylinder 55, a lifting platform 54, a slit motor 58, a driving bevel gear 57, and a driven bevel gear 53. A hollow support shaft 52 is rotatably mounted on the axis of the slit roller 5. Simultaneously, the support shaft 55 is fixed to the upper end of the lifting platform 54, the slit motor 58 is fixed to the lower end of the lifting platform 54, the driving bevel gear 57 is fixed to the output shaft of the slit motor 58, and the driven bevel gear 53 is fixed to the end of the slit roller 5 and meshes with the driving bevel gear 57. The cylinder 55 is fixed inside the slit box 56, and the piston rod of the cylinder 55 is fixedly connected to the bottom of the lifting platform 54. The extension and retraction of the piston rod of the cylinder 55 drives the lifting platform 54 and its components—the slit motor 58, the driving bevel gear 57, the support shaft 52, and the slit roller 5—to move up and down. After the slit motor 58 starts, it drives the rotation of the slit roller 5 through the driving bevel gear 57 and the driven bevel gear 53. When the slit roller 5 rotates, the linear velocity of the slit knife 51 at the contact point with the mulch film is equal to the moving speed of the mulch film 1, so as to avoid the mulch film 1 being torn due to a speed difference between the slit knife 51 and the mulch film 1.

[0025] After prolonged operation, friction between the slit roller 5 and the support platform 4 generates heat. This heat is transferred to the mulch film 1, causing it to shrink, deform, or even break. Therefore, if... Figure 8 As shown, a water cavity 41 is provided inside the front end of the support platform 4, and the water cavity 41 is filled with cooling water 44. The cooling water 44 is used to cool the upper surface of the support platform 4. Cooling prevents the mulch film from deforming due to heat. To cool the slit roller 5 and slit knife 51, as shown... Figure 12 As shown, cooling water 44 is also installed inside the slit roller 5.

[0026] To enable the detection of seam quality, the present invention also includes a detection component, such as... Figure 6 , Figure 8 As shown, the detection assembly includes a detection box 6, which is located above the rear end of the support platform 4. Figure 15 As shown, the detection box 6 contains a detection camera 61, as... Figure 8As shown, the rear end of the support platform 4 has a mounting cavity 47, and the mounting cavity 47 contains a lighting lamp 46. The upper part of the mounting cavity 47 has a transparent glass 45 that is coplanar with the upper surface of the support platform 4. The inspection box 6 provides a dark environment for the mulch film 1 located on the transparent glass 45. The lighting lamp 46 emits light that shines on the mulch film 1, and the inspection camera 61 captures images of the gaps on the mulch film 1. If a bright line with the same shape as the gap 11 appears in the image, it indicates that the opening quality is qualified.

[0027] like Figure 16 As shown, this is a second embodiment of the slit roller 5, as follows: Figure 17 As shown, there are two slit rollers 5 arranged one in front of the other, and the two slit rollers 5 are exactly the same in shape, size and structure. Figure 18 , Figure 19 As shown, the two slit rollers 5 have the same slit shape on the mulch film 1, as follows: Figure 20 As shown, the two slit rollers 5 together form the gap 11 on the mulch film 1. Figure 21 As shown, the two slit rollers 5 have a spacing L of 0.3mm-0.6mm between the slits on the mulch film 1. For example, when the slit 11 is V-shaped, the included angle of the slit 11 is not open, and thus the mulch film portion at the slit 11 is still connected to the mulch film 1 as a whole. In this way, the mulch film portion at the slit 11 does not collapse, which can ensure the temperature between the mulch film 11 and the ground surface; and when the crop emerges, although the included angle of the slit 11 is not open, the resistance to emergence is small.

[0028] This invention utilizes a slit 11 in the plastic film 1, allowing seeds to emerge after the film 1 is laid. The slit 11 has a large surface area and size, facilitating crop emergence. Before emergence, when the plastic film 1 at the slit 11 covers the ground surface, the space between the plastic film 1 and the ground surface has a small connection area with the external environment, thus ensuring temperature stability between the plastic film 1 and the ground surface. The slit-opening machine of this invention can open the plastic film 1 during the winding process. The cooling water 44 in the water chamber 41 and the slit-opening roller 5 cools the upper surface of the support platform 4 and the slit-opening blade 51, thereby preventing the plastic film 1 from shrinking, deforming, or breaking due to heat. The detection component detects the opening to ensure the quality of the opening.

Claims

1. A non-vector-symmetric mulch film opening and sewing machine, characterized in that, The machine includes a frame, a take-up roller, a guide assembly, a support platform, and a slit assembly. The take-up roller, located at the rear end of the frame, is used to wind the mulch film. The guide assembly extends from the front end of the frame to the rear end to guide the mulch film to maintain tension. The support platform is located in the middle of the frame, and the mulch film contacts the upper surface of the support platform. The slit assembly includes a slit roller, a slit box, and a drive mechanism. The slit roller is located above the support platform, and its outer wall has slit cutters arranged at equal intervals. The slit box is fixed to the frame, and the drive mechanism, located inside the slit box, drives the slit roller to move up and down and rotate. The rotating slit roller presses against the support platform to slit the mulch film located between them. The guiding assembly includes a first guide roller, a second guide roller, and a third guide roller. The first and second guide rollers are located on the front side of the support platform, and the third guide roller is located on the rear side of the support platform. The highest point of the second guide roller and the highest point of the third guide roller are coplanar with the upper surface of the support platform, and the lowest point of the first guide roller is located between the highest and lowest points of the second guide roller. The front end of the support platform has a water cavity, which is filled with cooling water. The cooling water is used to cool the upper surface of the support platform. It also includes a detection component, which includes a detection box located above the rear end of the support platform. The detection box contains a detection camera. The rear end of the support platform has a mounting cavity containing a lighting lamp. The upper part of the mounting cavity has transparent glass that is coplanar with the upper surface of the support platform. The detection box provides a dark environment for the mulch film located on the transparent glass. After the lighting lamp emits light, the detection camera captures images of the gaps on the mulch film. The drive mechanism includes a cylinder, a lifting platform, a slit motor, a driving bevel gear, and a driven bevel gear. The slit roller is rotatably mounted with a support shaft, which is fixed to the upper end of the lifting platform. The slit motor is fixed to the lower end of the lifting platform. The driving bevel gear is fixed to the output shaft of the slit motor. The driven bevel gear is fixed to the end of the slit roller and meshes with the driving bevel gear. The cylinder is fixed inside the slit box, and the cylinder piston rod is fixedly connected to the bottom of the lifting platform. The slit rollers are two rollers arranged one in front of the other. The slits on the mulch film made by the two slit rollers are identical in shape. The slits on the mulch film made by the two slit rollers together form a gap, and there is a distance of 0.3mm-0.6mm between the slits on the mulch film made by the two slit rollers. The gap is V-shaped. Or the gap includes a first segment, a second segment, and a third segment arranged in sequence, wherein the first segment and the third segment are symmetrically arranged about the second segment. The first end of the second segment is connected to the first segment, and the second end of the second segment is connected to the third segment. The first segment and the second segment, and the third segment and the second segment, all form obtuse angles.

Images