A cutting device and a cutting method for greenhouse film processing

Abstract

The application provides a cutting device and method for shed film processing, and relates to the technical field of cutting devices.The support foot is provided with a plurality of support feet, and the plurality of support feet are fixedly installed on the lower end face of the device body.The stretching assembly is slidingly installed on the upper end face of the device body.The cutting assembly is fixedly installed on the upper end face of the device body.The fixed roller is provided with a plurality of fixed rollers, and the plurality of fixed rollers are rotatably installed in the device body.The application solves the problem that the existing cutting device for shed film processing usually needs manual feeding of the shed film into the device during use, which is relatively cumbersome and affects work efficiency.The application realizes automatic feeding of the shed film and elastic clamping during the shed film conveying process, reduces the labor intensity of manual feeding, improves the film feeding efficiency, and improves the cutting size precision and the cutting quality.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and in particular to a cutting device and cutting method for greenhouse film processing. Background Technology

[0002] Cutting equipment for greenhouse film processing is a precision machine that is specially designed to process wide PE / EVA master rolls produced by blow molding or casting into narrow rolls or fixed-length sheets as required. It mainly includes longitudinal slitting machines, transverse slitting machines, and longitudinal and transverse integrated machines. The core of this type of equipment is to cope with the characteristics of greenhouse film, such as its extremely wide width, thin and soft texture, and easy stretching. It generally adopts a servo low-tension closed-loop control system, a high-sensitivity ultrasonic or infrared correction device, and a circular blade shearing blade group, so as to ensure smooth cuts and neat end faces even at high speed.

[0003] According to the preparation method of double-layer hollow high-insulation greenhouse film disclosed in application number CN201410386704.7, the method includes the following steps: (1) weighing polyethylene, metallocene polyethylene and various additives according to the weight parts and mixing them, then drying them with a dryer, and then uniformly mixing the materials with the penetration enhancer and nanomaterials with a mixer; (2) feeding the mixture into a screw extruder through a metering feeder for full melting and mixing, and then filtering it through a screen changer to remove impurities; (3) sending the hot-melted material to a mold for high-temperature molding, and sending the pre-molded double-layer greenhouse film out from the mold outlet, and then rapidly cooling it through a water cooling device; (4) sending the water-cooled greenhouse film to a drying device for secondary heating, and then sending it out through traction and guide rollers for secondary shaping and cooling, and then winding it up by a winding device and cutting it to obtain the finished product. The production process of this invention is simple, and the product has good light transmittance, strong heat preservation ability, good anti-fogging performance and long service life.

[0004] However, existing greenhouse film processing and cutting equipment usually requires manual feeding of the film into the equipment. During this process, users need to go around the rollers one by one and then pull the film out from the other end, which is cumbersome and affects work efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a cutting device and cutting method for greenhouse film processing, which has the advantages of improving work efficiency and reducing labor intensity.

[0006] This invention provides a cutting device and method for processing greenhouse film, specifically including a main body, supporting feet, a stretching assembly, a cutting assembly, fixed rollers, a film feeding mechanism, and a film pressing mechanism; multiple supporting feet are provided, all of which are fixedly installed on the lower end face of the main body; the stretching assembly is slidably installed on the upper end face of the main body; the cutting assembly is fixedly installed on the upper end face of the main body; multiple fixed rollers are provided, all of which are rotatably installed inside the main body; the film feeding mechanism is located inside the main body; and the film pressing mechanism is located inside the upper end of the main body.

[0007] Furthermore, the film feeding mechanism includes: fixed sprockets and conveyor chains; the fixed sprockets are provided in two sets, and both sets of fixed sprockets are rotatably installed on the inner side of the equipment body; the conveyor chains are provided in two sets, and the two conveyor chains are respectively engaged on the outer side of the two sets of fixed sprockets.

[0008] Furthermore, the film feeding mechanism also includes: a supporting arc-shaped plate, rolling elements, a fixed plate, and tension springs; the supporting arc-shaped plate is provided in two sets, with multiple supporting arc-shaped plates in each set, one of which is slidably connected to the inner side of the equipment body, and the remaining supporting arc-shaped plates are fixedly connected to the inner side of the equipment body; the rolling elements are provided in two sets, with each set of rolling elements rotatably connected to the inner side of the two sets of supporting arc-shaped plates; the fixed plates are provided in two sets, with each fixed plate fixedly connected to the inner side of the equipment body; the tension springs are provided in two sets, with one end of each set of tension springs fixedly connected to the outer side of the two fixed plates, and the other end of each set of tension springs fixedly connected to the outer side of the two supporting arc-shaped plates.

[0009] Furthermore, the film feeding mechanism also includes: a fixed drive motor, a fixed worm, and a fixed worm wheel; the fixed drive motor is fixedly installed on the outside of the main body of the equipment; the fixed worm is fixedly connected to the outside of the output shaft of the fixed drive motor; the fixed worm wheel is fixedly connected to the outside of the fixed sprocket, and the fixed worm wheel meshes with the fixed worm.

[0010] Furthermore, the film feeding mechanism also includes: a connecting feed rod and a positioning annular groove; the connecting feed rod is rotatably mounted on the inner side of the two conveying chains; multiple positioning annular grooves are provided, and the multiple positioning annular grooves are all opened on the outer side of the connecting feed rod.

[0011] Furthermore, the film feeding mechanism also includes: a sliding member, positioning beads, positioning compression springs, and a film clamp; two sliding members are provided, both of which are slidably connected to the outside of the connecting feed rod; two positioning beads are provided, each of which is slidably connected to the inside of the two sliding members; two positioning compression springs are provided, one end of each of which is fixedly connected to the outside of the two positioning beads, and the other end of each of which is fixedly connected to the inside of the two sliding members; two film clamps are provided, each of which is fixedly connected to the outside of the two sliding members.

[0012] Furthermore, the film pressing mechanism includes: a film guide block and a fixed base block; the film guide block is fixedly connected to the upper end of the inner side of the equipment body; the fixed base block is fixedly connected to the inner side of the film guide block.

[0013] Furthermore, the film pressing mechanism also includes: a fixed housing, film pressing compression springs, a sliding film pressing block, and a film pressing roller; the fixed housing is fixedly connected to the upper end of the inner side of the equipment body; multiple film pressing compression springs are provided, and multiple film pressing compression springs are fixedly connected to the inner side of the fixed housing; the sliding film pressing block is slidably connected to the inner side of the fixed housing; and the film pressing roller is rotatably connected to the inner side of the lower end of the sliding film pressing block.

[0014] Furthermore, the pressing mechanism also includes: a fixed ratchet, a fixed block, and a hinged pawl; the fixed ratchet is fixedly connected to the inner side of the lower end of the sliding pressing block; the fixed block is fixedly connected to the outer side of the pressing roller shaft; the hinged pawl is hinged to the outer side of the fixed block, and a torsion spring is provided at the hinge point between the hinged pawl and the fixed block.

[0015] Furthermore, the cutting method for the cutting equipment used in greenhouse film processing is characterized by: S1. Equipment Preparation and Adjustment: Place the main body of the equipment stably on the work site using the supporting feet. According to the width of the greenhouse film to be cut, the operator slides the two sliding parts and adjusts the distance between the two sliding parts on the outside of the connecting feed rod so that the width between the two film clamps matches the width of the greenhouse film. During the sliding process, the positioning beads on the inside of the sliding parts are pressed into the positioning annular groove on the outside of the connecting feed rod in sequence under the action of the positioning compression spring, locking the sliding parts in the adjusted position. S2. Closure film end clamping: Place the starting edge of the rolled or stacked greenhouse film into two film clamps, and use the clamps to firmly hold one end of the film. Ensure that the two edges of the film are aligned to avoid skewing. S3. Automatic film feeding: Start the fixed drive motor fixedly installed on the outside of the main body of the equipment. The fixed drive motor drives the fixed worm to rotate. The fixed worm drives the fixed sprocket to rotate through meshing with the fixed worm wheel. The fixed sprocket drives the two conveyor chains to drive synchronously. The conveyor chains drive the connecting feed rod installed on the inside of the two conveyor chains to move along the track of the conveyor chains. The connecting feed rod drives the greenhouse film clamp and the end of the clamped greenhouse film to move forward through the sliding parts. The greenhouse film passes under the film guide block and the film pressing roller in sequence, and finally is pulled out from the front end above the main body of the equipment. During the film feeding process, the rolling parts on the inside of the supporting arc plate roll in contact with the conveyor chain. The tension spring keeps the conveyor chain in a taut state through the supporting arc plate to ensure smooth transmission. S4. Anti-retraction membrane pressing: After the greenhouse film is pulled into the main body of the equipment, the pressure spring inside the fixed housing pushes the sliding pressure block downward, so that the pressure roller at the lower end of the sliding pressure block is in close contact with the upper surface of the greenhouse film, pressing the greenhouse film against the upper surface of the guide block and the fixed base block. The pressure roller rotates forward as the greenhouse film is conveyed forward. At this time, the hinged pawl slides on the ratchet teeth of the fixed ratchet wheel and does not hinder the rotation. When the greenhouse film tends to retreat, the hinged pawl is engaged in the ratchet teeth of the fixed ratchet wheel under the action of the torsion spring, preventing the pressure roller from rotating in the opposite direction, thereby preventing the greenhouse film from retreating. S5. Greenhouse film stretching and positioning: After the end of the greenhouse film is conveyed to the front end above the main body of the equipment, the operator releases the greenhouse film clamp, releases the clamp on the end of the greenhouse film, and then starts the stretching component, so that the stretching component clamps the end of the greenhouse film and pulls the greenhouse film forward according to the required cutting length, pulling the greenhouse film out of the preset cutting size. During the stretching process, the pressure roller always maintains elastic pressure on the greenhouse film to prevent the greenhouse film from shrinking back due to the stretching force. S6. Cutting operation: Once the greenhouse film is stretched to the set length, the cutting component is activated. The cutting component moves downward to cut the greenhouse film and obtain a film sheet of the required size. After cutting is completed, the cutting component resets and the stretching component releases the end of the greenhouse film. S7. Trim and finish: After the cutting operation is completed, turn off the fixed drive motor, lift the sliding film pressing block, release the pressure of the film pressing roller on the greenhouse film, take out the remaining greenhouse film and the cut greenhouse film pieces, and clean the equipment.

[0016] This invention provides a cutting device and method for greenhouse film processing, which has the following beneficial effects: This invention achieves automatic feeding and width adaptability adjustment of greenhouse film through the cooperation of a fixed drive motor, fixed worm gear, fixed worm wheel, fixed sprocket, conveyor chain, sliding component, greenhouse film clamp, positioning bead, and positioning annular groove in the film feeding mechanism. The cooperation between the positioning bead and the positioning annular groove ensures the precise positioning of the sliding component. The conveyor chain runs smoothly and is reliably tensioned under the combined action of the supporting arc plate, rolling component, and tension spring, which greatly reduces the labor intensity of manual feeding and improves the film feeding efficiency.

[0017] In addition, through the cooperation of the film guide block, fixed housing, film compression spring, sliding film pressing block, film pressing roller, fixed ratchet and hinged pawl in the film pressing mechanism, elastic clamping and one-way locking are achieved in the process of film conveying. This not only ensures the smooth conveying of the film, but also effectively prevents the film from falling back, and ensures that the film remains taut during the cutting process, which significantly improves the accuracy of the cutting size and the quality of the cut.

[0018] In addition, the above-mentioned mechanism enables automatic feeding of the greenhouse film and elastic clamping during the film conveying process, reducing the labor intensity of manual feeding, improving film feeding efficiency, and improving the accuracy of cutting dimensions and cut quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 This is a schematic diagram of the main body of Embodiment 1 of the present invention.

[0022] Figure 2 This is a cross-sectional structural diagram of the main body of Embodiment 1 of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the greenhouse film clamp according to Embodiment 1 of the present invention.

[0024] Figure 4 This is a schematic diagram of the conveyor chain according to Embodiment 1 of the present invention.

[0025] Figure 5 This is a cross-sectional structural schematic diagram of the sliding member according to Embodiment 1 of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the fixed roller in Embodiment 1 of the present invention.

[0027] Figure 7 This is Embodiment 1 of the present invention. Figure 4A magnified structural diagram of part A in the middle.

[0028] Figure 8 This is Embodiment 2 of the present invention. Figure 4 A magnified structural diagram of section B in the middle.

[0029] Figure 9 This is Embodiment 2 of the present invention. Figure 3 A magnified structural diagram of part C in the middle.

[0030] Figure 10 This is a schematic diagram of the structure of the pressure roller in Embodiment 2 of the present invention.

[0031] Figure 11 This is Embodiment 2 of the present invention. Figure 6 A magnified structural diagram of part D in the middle.

[0032] Figure 12 This is Embodiment 2 of the present invention. Figure 10 A magnified structural diagram of part E in the middle.

[0033] List of reference numerals 1. Main body of the equipment; 2. Support feet; 3. Stretching assembly; 4. Cutting assembly; 5. Fixed roller; 6. Fixed sprocket; 7. Conveyor chain; 8. Supporting arc plate; 801. Rolling component; 9. Fixed plate; 901. Tension spring; 10. Fixed drive motor; 1001. Fixed worm gear; 1002. Fixed worm wheel; 11. Connecting feed rod; 1101. Positioning annular groove; 12. Sliding component; 1201. Positioning bead; 1202. Positioning compression spring; 13. Film clamp; 14. Film guide block; 15. Fixed base block; 16. Fixed housing; 1601. Film compression spring; 17. Sliding film pressing block; 1701. Film pressing roller; 18. Fixed ratchet; 19. Fixed block; 1901. Hinge pawl. Detailed Implementation

[0034] Example 1: Please refer to Figures 1-9 As shown: This invention provides a cutting device and method for processing greenhouse film, comprising a main body 1, supporting feet 2, a stretching assembly 3, a cutting assembly 4, fixed rollers 5, a film feeding mechanism, and a film pressing mechanism; multiple supporting feet 2 are provided, and all supporting feet 2 are fixedly installed on the lower end face of the main body 1; the stretching assembly 3 is slidably installed on the upper end face of the main body 1; the cutting assembly 4 is fixedly installed on the upper end face of the main body 1; multiple fixed rollers 5 are provided, and all fixed rollers 5 are rotatably installed inside the main body 1; the film feeding mechanism is located inside the main body 1; and the film pressing mechanism is located inside the upper end of the main body 1.

[0035] The film feeding mechanism includes: a fixed sprocket 6, a conveyor chain 7, a supporting arc plate 8, a rolling element 801, a fixed plate 9, a tension spring 901, a fixed drive motor 10, a fixed worm gear 1001, a fixed worm wheel 1002, a connecting feed rod 11, a positioning annular groove 1101, a sliding element 12, a positioning bead 1201, a positioning compression spring 1202, and a film clamp 13; two sets of fixed sprockets 6 are provided, and both sets of fixed sprockets 6 are rotatably installed inside the main body 1 of the equipment; two conveyor chains 7 are provided, and the two conveyor chains 7 are respectively meshed with the two sets of fixed sprockets 6. The outer side; two sets of supporting arc-shaped plates 8 are provided, each set of supporting arc-shaped plates 8 has multiple supporting arc-shaped plates 8, one of which is slidably connected to the inner side of the equipment body 1, and the other supporting arc-shaped plates 8 are fixedly connected to the inner side of the equipment body 1; two sets of rolling elements 801 are provided, and the two sets of rolling elements 801 are respectively rotatably connected to the inner side of the two sets of supporting arc-shaped plates 8; two fixed plates 9 are provided, and both fixed plates 9 are fixedly connected to the inner side of the equipment body 1; two sets of tension springs 901 are provided, and one end of the two sets of tension springs 901 is respectively fixedly connected to the outer side of the two fixed plates 9, and the two sets of tension springs 901 are respectively fixedly connected to the outer side of the two fixed plates 9. The other end of the tension spring 901 is fixedly connected to the outer side of the two supporting arc plates 8 respectively; the fixed drive motor 10 is fixedly installed on the outer side of the main body 1 of the equipment; the fixed worm 1001 is fixedly connected to the outer side of the output shaft of the fixed drive motor 10; the fixed worm wheel 1002 is fixedly connected to the outer side of the fixed sprocket 6, and the fixed worm wheel 1002 meshes with the fixed worm 1001; the connecting feed rod 11 is rotatably installed on the inner side of the two conveyor chains 7; multiple positioning annular grooves 1101 are provided, and multiple positioning annular grooves 1101 are all opened on the outer side of the connecting feed rod 11; sliding parts Two sliding members 12 are provided, and both sliding members 12 are slidably connected to the outside of the connecting feed rod 11; two positioning beads 1201 are provided, and the two positioning beads 1201 are slidably connected to the inside of the two sliding members 12 respectively; two positioning compression springs 1202 are provided, one end of the two positioning compression springs 1202 is fixedly connected to the outside of the two positioning beads 1201 respectively, and the other end of the two positioning compression springs 1202 is fixedly connected to the inside of the two sliding members 12 respectively; two greenhouse film clamps 13 are provided, and the two greenhouse film clamps 13 are fixedly connected to the outside of the two sliding members 12 respectively.

[0036] The specific usage and function of this embodiment are as follows: Before cutting the greenhouse film, the operator first clamps one end of the film to be cut in two film clamps 13. The two film clamps 13 are respectively fixedly connected to the outside of two sliding members 12. Both sliding members 12 are slidably connected to the outside of the connecting feed rod 11. The operator slides the two sliding members 12 according to the width of the greenhouse film, adjusting the distance between the two sliding members 12 so that the two film clamps 13 respectively clamp the two sides of the greenhouse film. The positioning beads 1201 slidably connected to the inside of the sliding members 12 automatically abut against the multiple positioning annular grooves 1101 opened on the outside of the connecting feed rod 11 under the elastic force of the positioning compression spring 1202, producing a clear... The positioning feel is adjusted to fix the sliding part 12 in the adjusted position, preventing accidental slippage during use. After clamping the greenhouse film, the operator starts the fixed drive motor 10 fixedly installed on the outside of the main body 1 of the equipment. The output shaft of the fixed drive motor 10 drives the fixed worm gear 1001 to rotate. The fixed worm gear 1001 meshes with the fixed worm wheel 1002 fixedly connected to the outside of the fixed sprocket 6. Therefore, the rotation of the fixed drive motor 10 drives the fixed sprocket 6 to rotate through the worm gear transmission. There are two sets of fixed sprockets 6. The outer side of each set of fixed sprockets 6 is meshed with a conveyor chain 7. The rotation of the fixed sprocket 6 drives the two conveyor chains 7 to rotate synchronously. The inner sides of the two conveyor chains 7 rotate. Equipped with a connecting feed rod 11, the transmission of the conveyor chain 7 drives the connecting feed rod 11 to move along the track of the conveyor chain 7. The connecting feed rod 11 drives the greenhouse film clamp 13 to move together via the sliding member 12. The greenhouse film clamp 13 pulls one end of the greenhouse film into the interior of the equipment body 1 from the feeding side, and passes under the stretching assembly 3 and the cutting assembly 4, finally pulling it out from the front end above the equipment body 1. When the greenhouse film is pulled out to the appropriate length, the operator releases the greenhouse film clamp 13, releasing the clamp on the end of the greenhouse film. At this time, the operator controls the stretching assembly 3 to clamp the front end of the greenhouse film and continues to pull the greenhouse film forward to the predetermined cutting length. Then, the operator starts the cutting assembly 4 to cut the greenhouse film. The membrane is cut. During the membrane feeding process, the supporting arc plate 8 slidably connected to the inside of the equipment body 1 and other supporting arc plates 8 fixedly connected to the inside of the equipment body 1 jointly support the conveyor chain 7. The rolling element 801 rotatably connected to the inside of the supporting arc plate 8 rolls in contact with the conveyor chain 7, reducing the frictional resistance of the conveyor chain 7 transmission. The fixed plate 9 is fixedly connected to the inside of the equipment body 1. One end of the tension spring 901 is fixed to the outside of the fixed plate 9, and the other end is fixed to the outside of the sliding supporting arc plate 8. The elasticity of the tension spring 901 keeps the supporting arc plate 8 tensioned on the conveyor chain 7, ensuring that the conveyor chain 7 always maintains a good meshing state with the fixed sprocket 6, avoiding tooth skipping or chain derailment.

[0037] Example 2: Based on Example 1, such as Figures 10-12As shown, the film pressing mechanism includes: a film guide block 14, a fixed base block 15, a fixed housing 16, a film pressing compression spring 1601, a sliding film pressing block 17, a film pressing roller 1701, a fixed ratchet 18, a fixed block 19, and a hinged ratchet 1901; the film guide block 14 is fixedly connected to the upper end of the inner side of the equipment body 1; the fixed base block 15 is fixedly connected to the inner side of the film guide block 14; the fixed housing 16 is fixedly connected to the upper end of the inner side of the equipment body 1; multiple film pressing compression springs 1601 are provided, and multiple compression springs... The membrane compression springs 1601 are all fixedly connected to the inner side of the fixed housing 16; the sliding membrane pressing block 17 is slidably connected to the inner side of the fixed housing 16; the membrane pressing roller 1701 is rotatably connected to the inner side of the lower end of the sliding membrane pressing block 17; the fixed ratchet 18 is fixedly connected to the inner side of the lower end of the sliding membrane pressing block 17; the fixed block 19 is fixedly connected to the outer side of the rotating shaft of the membrane pressing roller 1701; the hinged pawl 1901 is hinged to the outer side of the fixed block 19, and a torsion spring is provided at the hinge point between the hinged pawl 1901 and the fixed block 19.

[0038] The specific usage and function of this embodiment: When the film clamp 13 conveys the film from the feeding side to the discharging side of the equipment body 1, the film first passes through the guide block 14 fixedly connected to the upper inner side of the equipment body 1. The guide block 14 has a guiding slope, so that the film can accurately pass through the area below the pressure roller 1701, avoiding the film from running off-center or wrinkling. The fixed housing 16 is fixedly connected to the upper inner side of the equipment body 1. Multiple pressure springs 1601 are fixedly connected inside the fixed housing 16. The lower end of the pressure springs 1601 abuts against... The upper end face of the sliding film pressing block 17 is slidably connected to the inner side of the fixed housing 16. Under the elastic force of the film compression spring 1601, the sliding film pressing block 17 is pushed downward. The inner side of the lower end of the sliding film pressing block 17 is rotatably connected to the film pressing roller 1701. Therefore, under the elastic force of the film compression spring 1601, the film pressing roller 1701 is in close contact with the upper surface of the greenhouse film, pressing the greenhouse film onto the upper end face of the guide block 14 or the fixed base block 15. The film pressing roller 1701 provides a moderate clamping force to the greenhouse film, ensuring that the greenhouse film can be smoothly transported forward. To prevent the greenhouse film from jumping or shifting during transport, a fixing block 19 is fixedly connected to the outer side of the rotating shaft of the film pressing roller 1701. A hinged pawl 1901 is hinged to the outer side of the fixing block 19. A torsion spring is provided at the hinge point between the hinged pawl 1901 and the fixing block 19. A fixed ratchet 18 is fixedly connected to the inner side of the lower end of the sliding film pressing block 17. When the film pressing roller 1701 rotates clockwise as the greenhouse film is transported forward, the hinged pawl 1901 slides on the ratchet teeth of the fixed ratchet 18 under the action of the torsion spring, which does not prevent the film pressing roller 1701 from rotating. When the greenhouse film needs to be kept taut due to the tension of the stretching component 3 after cutting, or when any factor causes the pressure roller 1701 to reverse, the hinged pawl 1901 will engage with the ratchet teeth of the fixed ratchet 18 under the action of the torsion spring, preventing the pressure roller 1701 from reversing. The one-way locking function of the fixed ratchet 18 and the hinged pawl 1901 effectively prevents the pressure roller 1701 from rotating in the opposite direction, thereby preventing the greenhouse film from backing up during the conveying process, ensuring that the greenhouse film is always in a taut state, and providing a stable cutting reference surface for the cutting component 4.

[0039] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0040] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0041] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cutting device for greenhouse film processing, comprising a main body (1), supporting feet (2), a stretching assembly (3), a cutting assembly (4), a fixed roller (5), a film feeding mechanism, and a film pressing mechanism; wherein multiple supporting feet (2) are provided, and multiple supporting feet (2) are fixedly installed on the lower end face of the main body (1); characterized in that: The stretching component (3) is slidably installed on the upper end face of the equipment body (1); the cutting component (4) is fixedly installed on the upper end face of the equipment body (1); multiple fixed rollers (5) are provided, and multiple fixed rollers (5) are rotatably installed inside the equipment body (1); the film feeding mechanism is located on the inner side of the equipment body (1); the film pressing mechanism is located on the inner side of the upper end of the equipment body (1).

2. The cutting equipment for greenhouse film processing as described in claim 1, characterized in that: The film feeding mechanism includes: fixed sprockets (6) and conveying chains (7); the fixed sprockets (6) are provided in two sets, and both sets of fixed sprockets (6) are rotatably installed on the inner side of the equipment body (1); the conveying chains (7) are provided in two sets, and the two conveying chains (7) are respectively engaged on the outer side of the two sets of fixed sprockets (6).

3. The cutting equipment for greenhouse film processing as described in claim 2, characterized in that: The film feeding mechanism further includes: a supporting arc plate (8), a rolling element (801), a fixed plate (9), and a tension spring (901); the supporting arc plate (8) is provided in two sets, each set of supporting arc plates (8) is provided in multiple sets, one of the supporting arc plates (8) in each set is slidably connected to the inner side of the equipment body (1), and the other supporting arc plates (8) are fixedly connected to the inner side of the equipment body (1); the rolling element (801) is provided in two sets, and the two sets of rolling elements (801) are respectively rotatably connected to the inner side of the two sets of supporting arc plates (8); the fixed plate (9) is provided in two sets, and both fixed plates (9) are fixedly connected to the inner side of the equipment body (1); the tension spring (901) is provided in two sets, one end of the two sets of tension spring (901) is respectively fixedly connected to the outer side of the two fixed plates (9), and the other end of the two sets of tension spring (901) is respectively fixedly connected to the outer side of the two supporting arc plates (8).

4. The cutting equipment for greenhouse film processing as described in claim 3, characterized in that: The film feeding mechanism further includes: a fixed drive motor (10), a fixed worm (1001), and a fixed worm wheel (1002); the fixed drive motor (10) is fixedly installed on the outside of the main body (1) of the equipment; the fixed worm (1001) is fixedly connected to the outside of the output shaft of the fixed drive motor (10); the fixed worm wheel (1002) is fixedly connected to the outside of the fixed sprocket (6), and the fixed worm wheel (1002) meshes with the fixed worm (1001).

5. The cutting equipment for greenhouse film processing as described in claim 4, characterized in that: The film feeding mechanism further includes: a connecting feed rod (11) and a positioning annular groove (1101); the connecting feed rod (11) is rotatably installed on the inner side of the two conveying chains (7); the positioning annular groove (1101) is provided in multiple ways, and the multiple positioning annular grooves (1101) are all opened on the outer side of the connecting feed rod (11).

6. The cutting equipment for greenhouse film processing as described in claim 5, characterized in that: The film feeding mechanism further includes: a sliding member (12), a positioning bead (1201), a positioning compression spring (1202), and a greenhouse film clamp (13); there are two sliding members (12), and both sliding members (12) are slidably connected to the outside of the connecting feed rod (11); there are two positioning beads (1201), and the two positioning beads (1201) are slidably connected to the inside of the two sliding members (12); there are two positioning compression springs (1202), one end of the two positioning compression springs (1202) is fixedly connected to the outside of the two positioning beads (1201), and the other end of the two positioning compression springs (1202) is fixedly connected to the inside of the two sliding members (12); there are two greenhouse film clamps (13), and the two greenhouse film clamps (13) are fixedly connected to the outside of the two sliding members (12).

7. The cutting equipment for greenhouse film processing as described in claim 1, characterized in that: The film pressing mechanism includes: a film guide block (14) and a fixed base block (15); the film guide block (14) is fixedly connected to the upper end of the inner side of the equipment body (1); the fixed base block (15) is fixedly connected to the inner side of the film guide block (14).

8. The cutting equipment for greenhouse film processing as described in claim 7, characterized in that: The film pressing mechanism further includes: a fixed housing (16), a film pressing compression spring (1601), a sliding film pressing block (17), and a film pressing roller (1701); the fixed housing (16) is fixedly connected to the upper end of the inner side of the main body of the equipment (1); multiple film pressing compression springs (1601) are provided, and multiple film pressing compression springs (1601) are fixedly connected to the inner side of the fixed housing (16); the sliding film pressing block (17) is slidably connected to the inner side of the fixed housing (16); the film pressing roller (1701) is rotatably connected to the inner side of the lower end of the sliding film pressing block (17).

9. The cutting equipment for greenhouse film processing as described in claim 8, characterized in that: The pressing mechanism further includes: a fixed ratchet (18), a fixed block (19), and a hinged pawl (1901); the fixed ratchet (18) is fixedly connected to the inner side of the lower end of the sliding pressing block (17); the fixed block (19) is fixedly connected to the outer side of the pressing roller (1701) shaft; the hinged pawl (1901) is hinged to the outer side of the fixed block (19), and a torsion spring is provided at the hinge point between the hinged pawl (1901) and the fixed block (19).

10. A cutting method for a cutting device used in greenhouse film processing as described in claim 1, characterized in that: S1. Equipment Preparation and Adjustment: Place the main body of the equipment stably on the work site using the support feet. According to the width of the greenhouse film to be cut, the operator slides two sliding parts and adjusts the distance between the two sliding parts on the outside of the connecting feed rod so that the width between the two greenhouse film clamps matches the width of the greenhouse film. During the sliding process, the positioning beads on the inside of the sliding parts are pressed into the positioning annular groove on the outside of the connecting feed rod in sequence under the action of the positioning compression spring, locking the sliding parts in the adjusted position. S2. Closure film end clamping: Place the starting edge of the rolled or stacked greenhouse film into two film clamps, and use the clamps to firmly hold one end of the film. Ensure that the two edges of the film are aligned to avoid skewing. S3. Automatic film feeding: Start the fixed drive motor fixedly installed on the outside of the main body of the equipment. The fixed drive motor drives the fixed worm to rotate. The fixed worm drives the fixed sprocket to rotate through meshing with the fixed worm wheel. The fixed sprocket drives the two conveyor chains to drive synchronously. The conveyor chains drive the connecting feed rod installed on the inside of the two conveyor chains to move along the track of the conveyor chains. The connecting feed rod drives the greenhouse film clamp and the end of the clamped greenhouse film to move forward through the sliding parts. The greenhouse film passes under the film guide block and the film pressing roller in sequence, and finally is pulled out from the front end above the main body of the equipment. During the film feeding process, the rolling parts on the inside of the supporting arc plate roll in contact with the conveyor chain. The tension spring keeps the conveyor chain in a taut state through the supporting arc plate to ensure smooth transmission. S4. Press-fit anti-reverse: After the greenhouse film is pulled into the main body of the equipment, the pressure spring inside the fixed housing pushes the sliding pressure block downward, so that the pressure roller at the lower end of the sliding pressure block is in close contact with the upper surface of the greenhouse film, pressing the greenhouse film against the upper surface of the guide block and the fixed base block. The pressure roller rotates forward as the greenhouse film is conveyed forward. At this time, the hinged pawl slides on the ratchet teeth of the fixed ratchet wheel and does not hinder the rotation. When the greenhouse film tends to retreat, the hinged pawl is engaged in the ratchet teeth of the fixed ratchet wheel under the action of the torsion spring, preventing the pressure roller from rotating in the opposite direction, thereby preventing the greenhouse film from retreating. S5. Greenhouse film stretching and positioning: After the end of the greenhouse film is conveyed to the front end above the main body of the equipment, the operator releases the greenhouse film clamp, releases the clamp on the end of the greenhouse film, and then starts the stretching component, so that the stretching component clamps the end of the greenhouse film and pulls the greenhouse film forward according to the required cutting length, pulling the greenhouse film out of the preset cutting size. During the stretching process, the pressure roller always maintains elastic pressure on the greenhouse film to prevent the greenhouse film from shrinking back due to the stretching force. S6. Cutting operation: Once the greenhouse film is stretched to the set length, the cutting component is activated. The cutting component moves downward to cut the greenhouse film and obtain a film sheet of the required size. After cutting is completed, the cutting component resets and the stretching component releases the end of the greenhouse film. S7. Trim and finish: After the cutting operation is completed, turn off the fixed drive motor, lift the sliding film pressing block, release the pressure of the film pressing roller on the greenhouse film, take out the remaining greenhouse film and the cut greenhouse film pieces, and clean the equipment.

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