Bio-based full-degradable mulching film extrusion production line

Abstract

The invention discloses a bio-based fully-degradable mulching film extrusion production line in the technical field of fully-degradable film production, and the bio-based fully-degradable mulching film extrusion production line comprises a support frame, a rotating disc is rotatably mounted on the support frame, a plurality of winding rollers are mounted on the rotating disc, and the winding rollers are distributed in a circumferential array; a driving mechanism used for driving the winding roller to work is arranged on the side edge of the rotating disc. A switching mechanism used for replacing the winding rollers is installed on the supporting frame. According to the mulching film winding device, the replacement speed of the winding roller can be greatly increased, and the mulching film winding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fully degradable film production, in particular to a bio-based fully degradable mulch film extrusion production line. Background Art

[0002] As global environmental issues become increasingly prominent and plastic bans are introduced in various countries, bio-based fully degradable mulch films, as a new type of environmentally friendly material, have a very broad market prospect. The production process of bio-based degradable mulch films involves multiple links such as raw material processing, mixed extrusion, film forming and film winding.

[0003] After the bio-based degradable mulch film is formed, it is usually rolled up with a winder. The film will be wrapped around the roller. As the rolling progresses, the diameter of the film roll will gradually increase. Currently, the staff usually judges the diameter of the film roll based on their own experience. After the diameter of the film roll reaches the preset value, the machine is stopped to replace the winding roller. The replacement efficiency of the winding roller is low. Summary of the invention

[0004] The purpose of the present invention is to provide a bio-based fully degradable mulch film extrusion production line to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bio-based fully degradable mulch film extrusion production line, comprising a winder, the winder comprising a support frame, a rotating disk rotatably mounted on the support frame, a winding roller mounted on the rotating disk, and a plurality of winding rollers distributed in a circular array; a driving mechanism for driving the winding roller is arranged on the side of the rotating disk; and a switching mechanism for replacing the winding roller is installed on the support frame.

[0006] As a further solution of the present invention, the switching mechanism includes a pressure plate; the pressure plate is slidably connected to the support frame in the vertical direction, and a first spring for resetting the pressure plate is fixedly connected to the pressure plate; the pressure plate is arranged in an arc shape, and the inner diameter is equal to the outer diameter of the winding roller; an air hole is opened on the winding roller, and a piston is elastically and slidably installed in the winding roller, the piston is hinged with a first connecting rod, and the first connecting rod is hinged with a first slider at one end away from the piston, and the first slider is slidably connected to the winding roller; a first push block capable of driving the first slider to slide is fixedly installed on the pressure plate; a cutting assembly is also arranged on the pressure plate; a first motor is fixedly installed on the support frame, and the output shaft of the first motor is fixedly connected to the rotating disk.

[0007] As a further solution of the present invention, the cutting assembly includes a cutter, and the cutter is slidably connected to a pressure plate, and a linear motor for driving the cutter to move is installed on the pressure plate.

[0008] As a further solution of the present invention, guide rollers are rotatably mounted on both sides of the pressure plate.

[0009] As a further solution of the present invention, a square clamp is fixedly installed on the end of the winding roller, and the square clamp is plugged with a mounting frame, and the mounting frame is rotatably connected to the rotating disk; a limit block is elastically slidably connected to the mounting frame for limiting the square clamp.

[0010] As a further solution of the present invention, a second connecting rod is hinged on the limit block, a second slider is hinged on one end of the second connecting rod away from the limit block, the second slider is elastically slidably connected to the mounting frame, a first traction rope is fixedly connected to the second slider, the first traction rope extends into the rotating shaft of the mounting frame at one end away from the second slider and is fixedly connected to a third slider, the third slider is fixedly connected to a protrusion through a connecting rod, and a guide rail capable of driving the protrusion to move is fixedly connected to the support frame, and the guide rail is configured to be arc-shaped and is arranged coaxially with the rotating disk.

[0011] As a further solution of the present invention, the driving mechanism includes a first gear, which is fixedly connected to the rotating shaft of the mounting frame; a second motor is fixedly mounted on the support frame, and a second gear is fixedly connected to the output shaft of the second motor, and the second gear can mesh with the first gear.

[0012] As a further solution of the present invention, a slide rail is provided on the side of the rotating disk, and the square block can slide on the slide rail.

[0013] As a further solution of the present invention, a cylinder capable of driving the square block to move is installed on the slide rail.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention arranges a rotating disk, a winding roller and a switching mechanism. When the diameter of the ground film rolled up by the winding roller reaches a specified value, the switching mechanism can automatically drive the rotating disk to rotate and replace the winding roller. After the new winding roller rotates to the ground film rolling position, the switching mechanism can automatically fix the ground film on the winding roller. After the cutting assembly has cut the ground film, the winding roller can be wound again under the action of the driving mechanism, which can greatly speed up the replacement speed of the winding roller and improve the ground film rolling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the production line structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention;

[0019] Figure 4It is a cross-sectional schematic diagram of the positional relationship between the winding roller and the pressing plate of the present invention;

[0020] Figure 5 Figure 4 A partial enlarged view of the middle part;

[0021] Figure 6 This is a schematic diagram of the structure of the pressing plate and its upper part of the present invention;

[0022] Figure 7 It is a cross-sectional schematic diagram of the position relationship between the protrusion and the guide track of the present invention;

[0023] Figure 8 It is a schematic diagram of some mechanisms of the present invention;

[0024] Fig. 9 for Figure 3 A partial enlarged view of point B in the middle.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1-support frame, 2-rotating disk, 3-winding roller, 4-pressing plate, 5-first spring, 6-air hole, 7-piston, 8-first connecting rod, 9-first slider, 10-first push block, 11-first motor, 12-cutter, 13-transverse slide, 14-guide roller, 15-square block, 16-installation frame, 17-limiting block, 18-second connecting rod, 19-second slider, 20-first traction rope, 21-third slider, 22-bump, 23-guide rail, 24-first gear, 25-second motor, 26-second gear, 27-slide rail, 28-twin screw extruder, 29-cooling machine, 30-trimming machine, 31-corona machine, 32-traction machine. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 9 The present invention provides a technical solution: a bio-based fully degradable mulch film extrusion production line, including a winder, which can automatically change the winding roller 3 to reel in the bio-based fully degradable mulch film, and also includes a twin-screw extruder 28, a cooler 29, a trimmer 30, a corona machine 31 and a tractor 32. It should be noted that the twin-screw extruder 28, the cooler 29, the trimmer 30, the corona machine 31 and the tractor 32 are conventional settings of the extrusion production line. The layout and application sequence of the above equipment are prior art and will not be repeated here.

[0029] Among them, the winder includes a support frame 1, on which a rotating disk 2 is rotatably mounted, on which a winding roller 3 is mounted, and the winding roller 3 is arranged in a plurality distributed in a circular array; a driving mechanism for driving the winding roller 3 is arranged on the side of the rotating disk 2; and a switching mechanism for replacing the winding roller 3 is installed on the support frame 1.

[0030] The switching mechanism includes a pressure plate 4; the pressure plate 4 is slidably connected to the support frame 1 in the vertical direction, and a first spring 5 for resetting the pressure plate 4 is fixedly connected; the pressure plate 4 is arranged in an arc shape, and the inner diameter is equal to the outer diameter of the winding roller 3; an air hole 6 is provided on the winding roller 3, and a piston 7 is elastically and slidably installed in the winding roller 3, and the piston 7 is hinged with a first connecting rod 8, and a first slider 9 is hinged at one end of the first connecting rod 8 away from the piston 7, and the first slider 9 is slidably connected to the winding roller 3; a first push block 10 capable of driving the first slider 9 to slide is fixedly installed on the pressure plate 4; a cutting assembly is also provided on the pressure plate 4; a first motor 11 is fixedly installed on the support frame 1, and the output shaft of the first motor 11 is fixedly connected to the rotating disk 2.

[0031] The cutting assembly includes a cutter 12, which is slidably connected to a pressing plate 4, on which a linear motor (not shown) for driving the cutter 12 to move is mounted.

[0032] like Figure 2 As shown, when used, the end of the formed fully degradable mulch film is fixed on the leftmost winding roller 3, and the film is located between the winding roller 3 and the pressure plate 4, and the driving mechanism can drive the winding roller 3 to roll up the mulch film; as the mulch film is rolled up, the diameter of the film roll will gradually increase, and the film roll will drive the pressure plate 4 to slide downward, and the pressure plate 4 will press the mulch film against the winding roller 3 under the action of the first spring 5, which can ensure that the mulch film is more stable and compact when rolled up; when the pressure plate 4 moves downward to the specified position (the specified position refers to the displacement distance of the pressure plate 4 moving downward equal to the preset thickness of the roll), the first motor 11 is started, and the first motor 11 will drive the rotating disk 2 to Figure 2 In the state shown, the film roll is rotated 90° counterclockwise, and the film roll will rotate to the bottom along with the winding roller 3, and then the winding roller 3 initially located at the top will rotate to the leftmost side; when the rotating disk 2 drives the winding roller 3 and the film roll to rotate until the pressure plate 4 is separated from the film roll, the pressure plate 4 will move upward to the initial position under the action of the first spring 5, and the pressure plate 4 will drive the first push block 10 to move upward synchronously; Figure 4 and Figure 5As shown, the first push block 10 will push the first slider 9 located above it to move upward, and the first slider 9 will push the piston 7 to move inside the winding roller 3 through the first connecting rod 8, and the piston 7 will push the air in the winding roller 3 out of the air hole 6; when the pressing plate 4 moves upward to make the ground film completely fit the outer wall of the winding roller 3, the first slider 9 moves upward to the transverse sliding groove 13 opened on the winding roller 3; at this time, the ground film is tightly attached to the outer wall of the winding roller 3 under the action of the pressing plate 4;

[0033] At this time, the first slider 9 can move outward in the transverse slide groove 13, and the piston 7 will also move outward under the action of the spring, the air pressure in the winding roller 3 will decrease, and the ground film will be tightly adsorbed on the bottom of the winding roller 3 under the action of the air pressure, and then the cutting assembly can cut the ground film; after the cutting is completed, the driving mechanism can drive the winding roller 3 on the left to wind up the ground film, and when the winding roller 3 drives one end of the ground film to rotate, the ground film is tightly attached to the surface of the winding roller 3 by the air pressure, which can ensure that the pressure plate 4 will not affect the winding of the ground film;

[0034] When the film roll needs to be removed from the winding roller 3, the first slider 9 is pushed inward from the transverse slide groove 13 by a tool such as a thimble. After the first slider 9 moves to the innermost side of the transverse slide groove 13, it can move downward to the position as shown in FIG. Figure 5 The initial position shown in the figure, at this time, the air pressure value in the winding roller 3 is restored, the adsorption effect of the winding roller 3 on the film roll disappears, and then the film roll can be easily removed from the winding roller 3, and the winding roller 3 can be recycled and reused; the present invention is provided with a rotating disk 2, a winding roller 3 and a switching mechanism. When the diameter of the ground film rolled up by the winding roller 3 reaches a specified value, the switching mechanism can automatically drive the rotating disk 2 to rotate and replace the winding roller. After the new winding roller 3 rotates to the ground film rolling position, the switching mechanism can automatically fix the ground film on the winding roller 3. After the cutting assembly has cut the ground film, the winding roller 3 can be wound again under the action of the driving mechanism, which can greatly speed up the replacement speed of the winding roller 3 and improve the ground film rolling efficiency.

[0035] like Figure 6 As shown, guide rollers 14 are rotatably installed on both sides of the pressing plate 4; through the arrangement of the guide rollers 14, when the pressing plate 4 presses the ground film onto the winding roller 3, the ground film can be wound more smoothly.

[0036] A square clamping block 15 is fixedly mounted on the end of the winding roller 3, and a mounting frame 16 is inserted into the square clamping block 15, and the mounting frame 16 is rotatably connected to the rotating disk 2; a limit block 17 for limiting the square clamping block 15 is elastically slidably connected to the mounting frame 16;

[0037] A second connecting rod 18 is hinged on the limit block 17, and a second slider 19 is hinged on the end of the second connecting rod 18 away from the limit block 17. The second slider 19 is elastically slidably connected to the mounting frame 16, and a first traction rope 20 is fixedly connected to the second slider 19. The first traction rope 20 extends into the rotating shaft of the mounting frame 16 at one end away from the second slider 19 and is fixedly connected to a third slider 21. The third slider 21 is fixedly connected to a protrusion 22 through a connecting rod. A guide rail 23 capable of driving the protrusion 22 to move is fixedly connected to the support frame 1. The guide rail 23 is set to an arc shape and is arranged coaxially with the rotating disk 2.

[0038] When working, Figure 2 , Figure 7 and Figure 8 As shown, when the winding roller 3 is at the leftmost position, the limit block 17 limits the square block 15; at this time, the winding roller 3, the square block 15 and the mounting frame 16 are a whole, and the driving mechanism can drive the winding roller 3 to rotate and roll up the ground film through the mounting frame 16; when the film roll diameter reaches the preset value, the preset value refers to the film roll thickness that meets the production requirements pre-set according to the production standard, when the first motor 11 drives the rotating disk 2 to rotate, the protrusion 22 will move outward under the action of the guide track 23 (such as Figure 7 As shown, both ends of the guide track 23 are provided with inclined surfaces. When the protrusion 22 enters the guide track 23, it can move outward along the inclined surface, and when the protrusion 22 moves out of the guide track 23, it can move inward). The protrusion 22 will drive the third slider 21 to move outward synchronously through the connecting rod. The third slider 21 will drive the second slider 19 to move toward the side close to the limit block 17 through the first traction rope 20. The second slider 19 will drive the limit block 17 to move upward through the second connecting rod 18. When the installation frame 16 rotates to the bottom, the limit block 17 moves to the outside of the square block 15, canceling the limit on the square block 15. Then The rear winding roller 3 and the square clamping block 15 can automatically fall off from the mounting frame 16, and the staff does not need to remove the winding roller 3 from the rotating disk 2, which can greatly improve the disassembly efficiency of the film roll. Moreover, through the arrangement of the square clamping block 15 and the mounting frame 16, when the staff installs the winding roller 3 from the rightmost side of the rotating disk 2, they only need to push the winding roller 3 upward and inward with the air hole 6 to make the winding roller 3 easily dock with the mounting frame 16. After the rotating disk 2 drives the mounting frame 16 and the square clamping block 15 to rotate to the highest point, the limit block 17 will automatically limit the square clamping block, which can greatly improve the disassembly and installation efficiency of the winding roller 3.

[0039] In addition, the driving mechanism includes a first gear 24, which is fixedly connected to the rotating shaft of the mounting frame 16; a second motor 25 is fixedly mounted on the support frame 1, and a second gear 26 is fixedly connected to the output shaft of the second motor 25, and the second gear 26 can mesh with the first gear 24.

[0040] like Figure 2 As shown, the second motor 25 can drive the first gear 24 to rotate through the second gear 26, and the first gear 24 located on the leftmost side can drive the leftmost winding roller 3 to rotate.

[0041] A slide rail 27 is provided on the side of the rotating disk 2 , and the square clamping block 15 can slide on the slide rail 27 ; a cylinder capable of driving the square clamping block 15 to move is installed on the slide rail 27 .

[0042] like Figure 2 As shown, the staff can place the winding roller 3 on the slide rail 27 one by one, and the cylinder can drive the slide rail 27 to transport the winding roller 3 to the rotating disk 2 every time the rotating disk 2 rotates.

Claims

1. A bio-based fully degradable mulch film extrusion production line, comprising a coiler, the coiler comprising a support frame (1), a rotating disk (2) rotatably mounted on the support frame (1), characterized in that: A winding roller (3) is mounted on the rotating disk (2), and the winding rollers (3) are arranged in a plurality and distributed in a circular array; a driving mechanism for driving the winding roller (3) to rotate and wind is arranged on the side of the rotating disk (2); and a switching mechanism for replacing the winding roller (3) is mounted on the support frame (1).

2. The bio-based fully degradable mulch film extrusion production line according to claim 1, characterized in that: The switching mechanism comprises a pressure plate (4); the pressure plate (4) is slidably connected to the support frame (1) in the vertical direction, and a first spring (5) for resetting the pressure plate (4) is fixedly connected; an air hole (6) is provided on the winding roller (3), a piston (7) is elastically slidably installed in the winding roller (3), the piston (7) is hinged with a first connecting rod (8), and a first slider (9) is hinged at one end of the first connecting rod (8) away from the piston (7), and the first slider (9) is slidably connected to the winding roller (3); a first push block (10) capable of driving the first slider (9) to slide is fixedly installed on the pressure plate (4); a cutting assembly is also provided on the pressure plate (4); a first motor (11) is fixedly installed on the support frame (1), and an output shaft of the first motor (11) is fixedly connected to the rotating disk (2).

3. The bio-based fully degradable mulch film extrusion production line according to claim 2, characterized in that: The cutting assembly comprises a cutter (12), the cutter (12) is slidably connected to a pressing plate (4), and a linear motor for driving the cutter (12) to move is mounted on the pressing plate (4).

4. The bio-based fully degradable mulch film extrusion production line according to claim 2, characterized in that: The pressing plate (4) is arranged in an arc shape, and its inner diameter is equal to the outer diameter of the winding roller (3).

5. The bio-based fully degradable mulch film extrusion production line according to claim 3, characterized in that: Guide rollers (14) are rotatably mounted on both sides of the pressing plate (4).

6. The bio-based fully degradable mulch film extrusion production line according to claim 5, characterized in that: A square clamping block (15) is fixedly mounted on the end of the winding roller (3); the square clamping block (15) is plugged with a mounting frame (16); the mounting frame (16) is rotatably connected to the rotating disk (2); and a limit block (17) for limiting the square clamping block (15) is elastically slidably connected to the mounting frame (16).

7. The bio-based fully degradable mulch film extrusion production line according to claim 6, characterized in that: A second connecting rod (18) is hinged on the limit block (17); a second slider (19) is hinged on one end of the second connecting rod (18) away from the limit block (17); the second slider (19) is elastically slidably connected to the mounting frame (16); a first traction rope (20) is fixedly connected to the second slider (19); an end of the first traction rope (20) away from the second slider (19) extends into the rotating shaft of the mounting frame (16) and is fixedly connected to a third slider (21); the third slider (21) is fixedly connected to a protrusion (22) via a connecting rod; a guide track (23) capable of driving the protrusion (22) to move is fixedly connected to the support frame (1); the guide track (23) is arranged in an arc shape and is coaxially arranged with the rotating disk (2).

8. The bio-based fully degradable mulch film extrusion production line according to claim 7, characterized in that: The driving mechanism comprises a first gear (24), the first gear (24) being fixedly connected to a rotating shaft of a mounting frame (16); a second motor (25) being fixedly mounted on the support frame (1), a second gear (26) being fixedly connected to an output shaft of the second motor (25), and the second gear (26) being capable of meshing with the first gear (24).

9. The bio-based fully degradable mulch film extrusion production line according to claim 8, characterized in that: A slide rail (27) is provided on the side of the rotating disk (2), and the square block (15) can slide on the slide rail (27).

10. The bio-based fully degradable mulch film extrusion production line according to claim 9, characterized in that: A cylinder capable of driving the square clamping block (15) to move is installed on the slide rail (27).

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