Mulching film production discharging device
By designing a mulch film production discharge device and utilizing automatic conveying, cooling, and cutting components, the problems of poor continuity and manual cutting in mulch film production have been solved, achieving highly efficient automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-03-17
AI Technical Summary
Existing mulch film production equipment suffers from poor continuity during the material output process, requiring waiting for cooling and molding, which wastes time, and cutting requires manual intervention.
Design a plastic film production and discharge device, comprising casters, a base frame, spring dampers, hollow columns, U-shaped plates, fan covers, electric fans, rotating motors, rotating shafts, transmission rods, tracks, vertical slide rails, movable pressing plates, staggered rollers, fixed support plates, longitudinal slide rails, movable collar plates, cutting motors, cutting shafts, cutting blades, circular grooves, locking support frames, winding motors, and winding rollers, to realize the automatic conveying, cooling, cutting, and winding of plastic film.
This enables the continuous production process of plastic film, avoids the wasted time in cooling and molding and manual cutting, and improves production efficiency.
Smart Images
Figure CN223998920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mulch film production, and in particular to a mulch film production discharge device. Background Technology
[0002] The main raw material for mulch film is polyethylene resin, including low-density polyethylene, linear low-density polyethylene, and high-density polyethylene. Discharging is required during the production of mulch film.
[0003] Existing processing equipment for mulch film production makes it difficult to achieve continuity in the roll-out process. After the roll is completed, manual cutting of the mulch film is often required. At the same time, the mulch film needs to wait for cooling and solidification during production, resulting in wasted time.
[0004] Therefore, to address the issue of wasted time during the cooling and molding process of existing plastic film production, a plastic film production discharge device can be designed to solve this problem. Utility Model Content
[0005] To overcome the shortcomings of existing mulch film production, which requires waiting for the material to cool and solidify during production, resulting in wasted time, and the fact that the related processing equipment for mulch film production is difficult to make continuous in the roll production process, and that the mulch film often needs to be manually cut after the roll is completed.
[0006] The technical solution of this utility model is as follows: a film production and discharge device, comprising a caster wheel, a base frame, a spring damper, a hollow column, a U-shaped plate, a column, a fan cover, an electric fan, a rotating motor, a rotating shaft, a transmission rod, a track, a vertical slide rail, a movable pressing plate, staggered rollers, a fixed support plate, a longitudinal slide rail, a movable collar plate, a cutting motor, a cutting shaft, a cutting knife, a circular groove, a locking support frame, a winding motor, and a winding roller. The upper end of the caster wheel is provided with a base frame, the upper end of the base frame is provided with a spring damper, the upper end of the spring damper is provided with a hollow column, the upper end of the hollow column is provided with a U-shaped plate, the upper end of the U-shaped plate is provided with a column, the upper end of the column is provided with a fan cover, the fan cover houses an electric fan, and the front end of the U-shaped plate is provided with... There is a rotating motor, and a rotating shaft is driven to one side of the rotating motor. A transmission rod is set outside the rotating shaft, and a track is set outside the transmission rod. A vertical slide rail is set at the upper end of the track, and a movable pressing plate is slidably connected between the vertical slide rails. An interlaced roller is set at the rear end of the track, and a fixed support plate is set at the rear end of the interlaced roller. A longitudinal slide rail is set at the upper end of the fixed support plate, and a movable collar plate is slidably connected on the longitudinal slide rail. A cutting motor is set at the front end of the movable collar plate, and a cutting shaft is driven to the rear end of the cutting motor. A cutting blade is set at the rear end of the cutting shaft, and a circular groove is set at the rear end of the cutting blade. A locking support frame is set outside the circular groove, and a winding motor is set on the locking support frame. A winding roller is driven to the winding motor.
[0007] Preferably, the bottom frame is a square hollow shape, and universal wheels are provided around its lower end. Spring dampers are provided around its upper end. The spring dampers and hollow columns are set as a group, and a total of four groups are provided. The four groups are respectively placed around the upper end of the bottom frame, and are arranged in a one-to-one correspondence with the universal wheels.
[0008] Preferably, the U-shaped plate is U-shaped, the fan cover is provided with ventilation slots, and three electric fans are installed inside the fan cover.
[0009] Preferably, the rotating motor, rotating shaft, transmission rod, and track are configured as a whole, with one transmission rod fixed to the outside of the rotating shaft and the other four transmission rods arranged in parallel inside the track.
[0010] Preferably, two vertical slide rails and one movable clamping plate are set as a group, and there are two groups in total, which are respectively set at the front and rear ends of the upper end of the track.
[0011] Preferably, a circular groove is provided on the rear end of the U-shaped plate, and two locking brackets are provided, respectively located on both sides of the rear end of the U-shaped plate.
[0012] Preferably, the plastic film passes between the track and the moving pressing plate, is simultaneously connected by interlaced rollers, and is then wound up by the winding roller.
[0013] The beneficial effects of this utility model are:
[0014] 1. The device is easily movable by using casters. A spring damper is fixed to the bottom frame for shock absorption, and a hollow column provides protection. A U-shaped plate secures the uprights, and a fan cover protects the electric fan. When the fan starts, it cools the plastic film, accelerating its shaping. A rotating motor starts, driving the rotating shaft and transmission rod to rotate, which in turn drives the track to convey the plastic film. A moving pressure plate slides on the vertical slide rail to press the film and prevent it from shifting. Interlaced rollers increase the heat dissipation area. A fixed support plate provides support, and a locking bracket supports the winding roller through a circular groove. The winding motor starts, driving the winding roller to wind up the film. A cutting motor starts, driving the cutting shaft and cutting blade to rotate, cutting the film. A moving collar plate slides on the longitudinal slide rail, driving the cutting blade to move longitudinally for cutting. It overcomes the shortcomings of existing mulch film production, which requires waiting for the material to cool and solidify during production, resulting in wasted time. At the same time, the related processing equipment for mulch film production is difficult to achieve continuity in the roll production process, and manual cutting of the mulch film is often required after the roll is completed. Attached Figure Description
[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the mulch film production and discharge device of this utility model.
[0016] Figure 2 The diagram shown is of the winding roller of the mulch film production discharge device of this utility model.
[0017] Figure 3 The diagram shown is a schematic of the track of the mulch film production and discharge device of this utility model.
[0018] Figure 4 The diagram shown is a fixed support plate of the mulch film production and discharge device of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Caster wheel; 2. Base frame; 3. Spring damper; 4. Hollow column; 5. U-shaped plate; 6. Upright column; 7. Fan cover; 8. Electric fan; 9. Rotating motor; 10. Rotating shaft; 11. Transmission rod; 12. Track; 13. Vertical slide rail; 14. Moving pressure plate; 15. Interlaced roller; 16. Fixed support plate; 17. Longitudinal slide rail; 18. Moving collar plate; 19. Cutting motor; 20. Cutting shaft; 21. Cutting blade; 22. Circular groove; 23. Locking support frame; 24. Rewinding motor; 25. Rewinding roller. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Among the currently available feasible technologies, the preparation of raw materials for mulch film production involves polyethylene (PE) resin, including low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and high-density polyethylene (HDPE). LDPE possesses good flexibility and transparency, LLDPE combines toughness and tensile strength, while HDPE exhibits high strength and abrasion resistance. These raw materials are typically mixed in specific proportions depending on the specific application and performance requirements of the mulch film. For example, the production of mulch film for common crop cultivation may use a larger proportion of LDPE to ensure flexibility; generally, LDPE accounts for approximately 60%-70%, LLDPE for 20%-30%, and HDPE for about 10%.
[0022] In addition to polyethylene resin, some additives may be added, such as antioxidants, light stabilizers, and colorants. Antioxidants prevent the mulch film from aging due to oxidation during storage and use, while light stabilizers improve the film's light resistance and extend its service life. Colorants are used to change the color of the mulch film; for example, black mulch film can suppress weed growth because black blocks sunlight, preventing weeds from photosynthesizing. These additives are generally added in small amounts. The amount of antioxidants and light stabilizers added is usually around 0.1%-0.5%, while the amount of colorants added depends on the desired color depth, generally around 0.5%-2%.
[0023] Extrusion process
[0024] First, the mixed raw materials are placed into a hopper and processed through an extruder. The extruder screw rotates under the drive of a motor, conveying the raw materials forward. During this conveying process, the raw materials are gradually melted by heating. The heating temperature depends on the type and proportion of the raw materials, generally between 150-200℃. For example, for raw materials mainly composed of LDPE, the temperature can be controlled at 160-180℃.
[0025] The melted raw materials are extruded through the die of an extruder to form the basic shape of the mulch film. The shape and size of the die determine the width and thickness of the mulch film. The gap at the die opening is adjustable. Generally, the thickness of the mulch film is between 0.008-0.02 mm, and the width can be adjusted from tens of centimeters to several meters according to actual needs. For example, the common mulch film for vegetable cultivation is 1-2 meters wide and 0.01-0.015 mm thick.
[0026] Cooling and shaping
[0027] Freshly extruded mulch film is quite hot and needs to be cooled and shaped. Cooling methods mainly include air cooling and water cooling. Air cooling involves blowing cold air onto the surface of the mulch film using a fan, rapidly lowering its temperature. Water cooling involves passing the mulch film through a cooling water tank for further cooling.
[0028] In the cooling water tank, multiple guide rollers are installed to ensure the flatness of the mulch film. The spacing and position of these guide rollers are arranged reasonably according to the size of the mulch film and the size of the water tank. Generally, the diameter of the guide rollers is between 10-30cm, and the spacing is between 30-50cm. After cooling, the temperature of the mulch film can generally be reduced to 30-50℃, making it ready for subsequent processing.
[0029] Traction and winding
[0030] After cooling and setting, the plastic film is pulled at a constant speed by a traction device. The traction speed of the traction device must match the extrusion speed to ensure uniform film thickness. The traction speed is generally between 10 and 50 meters per minute. The pressure of the traction rollers must be moderate; excessive pressure may cause film deformation, while insufficient pressure will prevent effective traction.
[0031] Finally, the plastic film is wound up using a winding device. During the winding process, the tension of the plastic film must be carefully controlled; excessive tension can easily cause the film to break, while insufficient tension will result in a loose roll. The wound plastic film rolls can be packaged and stored as needed for sale or use.
[0032] A plastic film production discharge device
[0033] Overall Structure Introduction
[0034] A mulch film production discharge device mainly includes a hopper, an extruder, a cooling system, a traction device, and a winding device.
[0035] The hopper is the raw material storage section, typically funnel-shaped, and located at the front of the entire unit. It is generally made of stainless steel to prevent corrosion and facilitate cleaning. The size of the hopper depends on the production scale; large-scale mulch film production equipment can hold several cubic meters of raw material in its hopper.
[0036] The extruder, connected below the hopper, is the core component. Inside the extruder is a screw, driven by a motor to rotate, pushing the raw material forward and melting and plasticizing it under high temperature and pressure, then extruding it through a die to form a preliminary film. For example, in a common single-screw extruder, the screw speed can be adjusted within a certain range according to the production speed requirements, typically 10-100 revolutions per minute.
[0037] Cooling system
[0038] The cooling system is located right next to the extruder outlet. Because the freshly extruded film is hot and soft, it needs rapid cooling to set its shape. The cooling system typically uses a combination of air cooling and water cooling.
[0039] The air-cooling section primarily uses fans to blow cool air onto the surface of the mulch film. The fan airflow is adjustable, typically between 5-20 cubic meters per minute, to control the cooling rate. The water-cooling section uses a water tank, through which the mulch film passes through cooling water. The water temperature in the tank is generally maintained at 10-20 degrees Celsius, effectively removing heat from the mulch film. Additionally, to prevent the mulch film from sticking or deforming in the water, guide rollers are installed in the tank to guide the film smoothly through the water.
[0040] Traction device
[0041] The traction device is located after the cooling system. Its main function is to pull the cooled and shaped mulch film forward at a uniform speed, ensuring a stable production speed. The traction device generally consists of one or more pairs of traction rollers.
[0042] The surface of the traction roller usually has anti-slip textures and is mostly made of rubber or silicone to increase the friction between it and the mulch film. The rotation speed of the traction roller can be precisely adjusted according to the production process requirements. For example, by controlling it with a variable frequency motor, the speed error can be controlled within ±1%, which ensures the uniform thickness of the mulch film. If the traction speed is unstable, the thickness of the mulch film will vary during the extrusion process.
[0043] winding device
[0044] The winding device is the final stage of the mulch film production process. Its function is to neatly wind up the pulverized mulch film that has been drawn in. The winding device includes winding rollers and a tension control system.
[0045] The diameter of the winding roller varies depending on the required size of the mulch film roll, generally ranging from tens of centimeters to over a meter. The tension control system uses sensors to detect the tension of the mulch film and then automatically adjusts the speed of the winding roller to maintain appropriate tension throughout the winding process. If the tension is too high, the mulch film may break; if the tension is too low, the roll will be loose, which is detrimental to subsequent storage and transportation. For example, the tension control system can maintain the tension of the mulch film between 10-50N to ensure winding quality.
[0046] Please see Figures 1-4This utility model provides an embodiment: a mulch film production and discharge device, including a caster wheel 1, a base frame 2, a spring damper 3, a hollow column 4, a U-shaped plate 5, a column 6, a fan cover 7, an electric fan 8, a rotating motor 9, a rotating shaft 10, a transmission rod 11, a track 12, a vertical slide rail 13, a movable pressing plate 14, staggered rollers 15, a fixed support plate 16, a longitudinal slide rail 17, a movable collar plate 18, a cutting motor 19, a cutting shaft 20, and a cutting blade 2. 1. Circular groove 22. Locking support frame 23. Winding motor 24. Winding roller 25. The upper end of the caster 1 is provided with a base frame 2. The upper end of the base frame 2 is provided with a spring damper 3. The upper end of the spring damper 3 is provided with a hollow column 4. The upper end of the hollow column 4 is provided with a U-shaped plate 5. The upper end of the U-shaped plate 5 is provided with a column 6. The upper end of the column 6 is provided with a fan cover 7. An electric fan 8 is installed inside the fan cover 7. The front end of the U-shaped plate 5 is provided with a rotating... A motor 9 is driven by a rotating shaft 10 on one side. A transmission rod 11 is installed outside the rotating shaft 10, and a track 12 is installed outside the transmission rod 11. A vertical slide rail 13 is installed at the upper end of the track 12, and a movable pressure plate 14 is slidably connected between the vertical slide rails 13. An interlaced roller 15 is installed at the rear end of the track 12, and a fixed support plate 16 is installed at the rear end of the interlaced roller 15. A longitudinal slide rail 17 is installed at the upper end of the fixed support plate 16. A movable collar plate 18 is slidably connected to the longitudinal slide rail 17. A cutting motor 19 is installed at the front end of the movable collar plate 18, and a cutting shaft 20 is driven to the rear end of the cutting motor 19. A cutting blade 21 is installed at the rear end of the cutting shaft 20, and a circular groove 22 is installed at the rear end of the cutting blade 21. A locking support frame 23 is installed on the outside of the circular groove 22, and a winding motor 24 is installed on the locking support frame 23. A winding roller 25 is driven to the winding motor 24. The caster wheel 1 facilitates the displacement of the entire device. The bottom frame 2 fixes the spring damper 3, which performs shock absorption. The hollow column 4 provides protection. The U-shaped plate 5 fixes the column 6, and the fan cover 7 protects the electric fan 8. When the electric fan 8 is started, it cools the mulch film and accelerates its shaping. The base frame 2 is square and hollow, with casters 1 around its lower perimeter. Spring dampers 3 are located around the upper perimeter of the base frame 2. The spring dampers 3 and hollow columns 4 form a group, with four groups in total. These four groups are positioned around the upper perimeter of the base frame 2, corresponding one-to-one with the casters 1. The U-shaped plate 5 is U-shaped, and the fan cover 7 has ventilation slots. Three electric fans 8 are located inside the fan cover 7. The rotating motor 9, rotating shaft 10, transmission rod 11, and track 12 are integrated into a single unit. One transmission rod 11 is fixed to the outside of the rotating shaft 10, and the other four transmission rods 11 are arranged in parallel inside the track 12. Two vertical slide rails 13 and a movable pressure plate 14 form a group, with two groups in total. These two groups are located at the front and rear ends of the upper part of the track 12, respectively.A circular groove 22 is provided on the rear end of the U-shaped plate 5, and two locking supports 23 are provided, respectively located on both sides of the rear end of the U-shaped plate 5. The mulch film passes between the conveyor belt 12 and the movable pressing plate 14, and is simultaneously connected by staggered rollers 15, and then wound up by the take-up roller 25. The rotating motor 9 starts, driving the rotating shaft 10 and the transmission rod 11 to rotate, thereby driving the conveyor belt 12 to transport the mulch film. The movable pressing plate 14 slides on the vertical slide rail 13 to press the mulch film to prevent it from shifting. The staggered rollers 15 can increase the heat dissipation area. The fixed support plate 16 provides support. The locking supports 23 support the take-up roller 25 through the circular groove 22. The take-up motor 24 starts, driving the take-up roller 25 to wind up the mulch film. When the cutting motor 19 starts, it drives the cutting shaft 20 and the cutting blade 21 to rotate, thereby cutting the mulch film. The moving collar plate 18 slides on the longitudinal slide rail 17, driving the cutting blade 21 to move longitudinally, thereby cutting.
[0047] During operation, the casters 1 facilitate the displacement of the entire device. The base frame 2 secures the spring damper 3, which provides shock absorption. The hollow column 4 provides protection. The U-shaped plate 5 secures the column 6. The fan cover 7 protects the electric fan 8. When the electric fan 8 starts, it cools the mulch film and accelerates its shaping. The rotating motor 9 starts, driving the rotating shaft 10 and transmission rod 11 to rotate, which in turn drives the track 12 to rotate and convey the mulch film. The moving pressing plate 14 slides on the vertical slide rail 13 to press the mulch film and prevent it from shifting. The staggered rollers 15 increase the heat dissipation area. The fixed support plate 16 provides support. The locking support frame 23 supports the winding roller 25 through the circular groove 22. The winding motor 24 starts, driving the winding roller 25 to wind up the mulch film. The cutting motor 19 starts, driving the cutting shaft 20 and the cutting blade 21 to rotate, thus cutting the mulch film. The moving collar plate 18 slides on the longitudinal slide rail 17, driving the cutting blade 21 to move longitudinally, thus completing the cutting and finishing all the work.
[0048] Through the above steps, the universal wheels 1 facilitate the displacement of the entire device. The bottom frame 2 fixes the spring damper 3, which performs shock absorption. The hollow column 4 provides protection. The U-shaped plate 5 fixes the column 6. The fan cover 7 protects the electric fan 8. The electric fan 8 starts to cool the mulch film and accelerate its shaping. The rotating motor 9 starts, driving the rotating shaft 10 and the transmission rod 11 to rotate, thereby driving the track 12 to rotate and convey the mulch film. The moving pressing plate 14 slides on the vertical slide rail 13 to press the mulch film and prevent it from shifting. The staggered rollers 15 can increase the heat dissipation area. The fixed support plate 16 provides support. The locking support frame 23 supports the winding roller 25 through the circular groove 22. The winding motor 24 starts, driving the winding roller 25 to wind up the mulch film. The cutting motor 19 starts, driving the cutting shaft 20 and the cutting blade 21 to rotate, thus cutting the mulch film. The moving collar plate 18 slides on the longitudinal slide rail 17, driving the cutting blade 21 to move longitudinally, thus achieving the cutting. This overcomes the shortcomings of existing mulch film production, which requires waiting for the material to cool and solidify during production, resulting in wasted time. Furthermore, the related processing equipment for mulch film production makes it difficult to achieve continuity in the roll-out process, often requiring manual cutting of the mulch film after roll completion.
[0049] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A mulch film production discharge device comprising a universal wheel (1), characterized in that: The utility model also includes bottom frame (2), spring damper (3), hollow column (4), U type board (5), stand (6), fan cover (7), electric fan (8), rotary motor (9), rotating shaft (10), transmission rod (11), caterpillar band (12), vertical slide rail (13), moving compression plate (14), staggered roller (15), fixed support plate (16), longitudinal slide rail (17), moving collar plate (18), cutting motor (19), cutting shaft (20), cutting knife (21), circular groove (22), locking support frame (23), winding motor (24), winding roller (25), the upper end of universal wheel (1) is provided with bottom frame (2), the upper end of bottom frame (2) is provided with spring damper (3), the upper end of spring damper (3) is provided with hollow column (4), the upper end of hollow column (4) is provided with U type board (5), the upper end of U type board (5) is provided with stand (6), the upper end of stand (6) is provided with fan cover (7), the inside of fan cover (7) is provided with electric fan (8), the front end of U type board (5) is provided with rotary motor (9), one side transmission of rotary motor (9) is connected with rotating shaft (10), the outside of rotating shaft (10) is provided with transmission rod (11), the outside of transmission rod (11) is provided with caterpillar band (12), the upper end of caterpillar band (12) is provided with vertical slide rail (13), moving compression plate (14) is slidably connected between vertical slide rail (13), the rear end of caterpillar band (12) is provided with staggered roller (15), the rear end of staggered roller (15) is provided with fixed support plate (16), the upper end of fixed support plate (16) is provided with longitudinal slide rail (17), longitudinal slide rail (17) is slidably connected with moving collar plate (18), the front end of moving collar plate (18) is provided with cutting motor (19), the rear end transmission of cutting motor (19) is connected with cutting shaft (20), the rear end of cutting shaft (20) is provided with cutting knife (21), the rear end of cutting knife (21) is provided with circular groove (22), the outside of circular groove (22) is provided with locking support frame (23), winding motor (24) is arranged on locking support frame (23), and winding roller (25) is drivenly connected on winding motor (24).
2. The mulch film production and discharging device according to claim 1, characterized in that: Bottom frame (2) is provided with square hollow, and the lower end of the four circumferences of bottom frame (2) is provided with universal wheel (1), the upper end of the four circumferences of bottom frame (2) is provided with spring damper (3), spring damper (3) and hollow column (4) are provided as a group, and four groups are provided, four groups are placed on the four circumferences of the upper end of bottom frame (2) respectively, and are provided as one-to-one with universal wheel (1).
3. The mulch film production and discharging device according to claim 1, characterized in that: U type board (5) is provided with U shape, fan cover (7) is provided with ventilation groove, and the inside of fan cover (7) is provided with three electric fans (8).
4. The mulch film production and discharging apparatus according to claim 1, characterized in that: Rotary motor (9), rotating shaft (10), transmission rod (11) and caterpillar band (12) are provided as a whole, one transmission rod (11) is fixed on the outside of rotating shaft (10), and the other four transmission rods (11) are arranged in parallel in the inside of caterpillar band (12).
5. The mulch film production and discharging apparatus according to claim 1, characterized in that: Two vertical slide rails (13) and a moving pressing plate (14) are arranged as a group, and two groups are arranged, and two groups are arranged at the front and rear ends of the upper end of the track (12).
6. The mulch film production and discharging apparatus according to claim 1, wherein: A circular groove (22) is arranged on the rear end of the U-shaped plate (5), and a locking bracket (23) is arranged with two, which are arranged on both sides of the rear end of the U-shaped plate (5).
7. The mulch film production and discharging apparatus according to claim 1, characterized in that: The mulch film passes between the track (12) and the moving pressing plate (14), is staggered by the staggered roller (15), and is wound by the winding roller (25).