CN113878839B

CN113878839B - PBS (poly butylenes succinate) and PBAT (poly butylenes succinate) biodegradable sheet extrusion production line

Info

Publication number: CN113878839B
Application number: CN202111246394.5A
Authority: CN
Inventors: 滕爱华
Original assignee: Dongguan Jwell Machinery Co ltd
Current assignee: Dongguan Jwell Machinery Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-06-24
Anticipated expiration: 2041-10-26
Also published as: CN113878839A

Abstract

The invention provides a PBS (poly butylenes succinate) and PBAT (poly butylenes succinate) biodegradable sheet extrusion production line, which comprises an extruder, wherein a forming die is arranged on one side of the extruder, a three-roller calender is arranged on one side of the forming die, a cooling bracket is arranged on one side of the three-roller calender, a film cutting mechanism is arranged on one side of the cooling bracket, a winding device convenient for automatically replacing a finished product is arranged on one side of the film cutting mechanism, and the winding device comprises a first vertical plate, a main shaft, a rotary disc, a sheave mechanism, a clamping mechanism, a driving mechanism, a lifting mechanism, a driving cylinder, a driving groove, a winding cylinder, a rectangular cylinder, a sliding arm, a connecting rod, a second vertical plate, an arc-shaped groove, a first driving column, a barrier strip and a bottom plate. The automatic feeding device can automatically perform feeding and winding drum installation, is convenient and quick, has higher working efficiency and lower manufacturing cost, is communicated through a mechanical structure, has higher stability, and reduces the equipment maintenance times.

Description

PBS (poly butylenes succinate) and PBAT (poly butylenes succinate) biodegradable sheet extrusion production line

Technical Field

The invention relates to the technical field of biodegradable sheet extrusion production lines, in particular to a PBS (poly butylenes succinate) and PBAT (poly butylenes succinate) biodegradable sheet extrusion production line.

Background

Biodegradable plastics refer to a class of plastics that are degraded by the action of microorganisms such as bacteria, molds (fungi), and algae that exist in nature. The ideal biodegradable plastic is a high molecular material which has excellent service performance, can be completely decomposed by environmental microorganisms after being discarded, and is finally inorganic to become a component of carbon circulation in nature. "paper" is a typical biodegradable material, while "synthetic plastics" is a typical polymeric material. Therefore, biodegradable plastics have the macromolecular material of these two kinds of material properties of "paper" and "synthetic plastics" concurrently, in current biodegradable sheet extrusion lines, the rolling after the sheet shaping all uses through the rolling machine, but current winding mechanism is when using, can't carry out the unloading to the coiled material after the rolling automatically, and carry out the material loading to new winding cylinder, need the manual work to go up unloading, work efficiency is lower, and go up unloading through the manipulator, equipment manufacturing cost is higher, electronic equipment needs frequent maintenance, it is comparatively troublesome to use.

Therefore, it is necessary to provide a PBS and PBAT biodegradable sheet extrusion line to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides an extrusion production line of PBS and PBAT biodegradable sheets.

The invention provides a PBS (poly butylenes succinate) and PBAT (poly butylenes succinate) biodegradable sheet extrusion production line, which comprises an extruder, wherein a forming die is arranged on one side of the extruder, a three-roller calender is arranged on one side of the forming die, a cooling bracket is arranged on one side of the three-roller calender, a film cutting mechanism is arranged on one side of the cooling bracket, and a winding device convenient for automatically replacing a finished product is arranged on one side of the film cutting mechanism;

the winding device comprises a first vertical plate, a main shaft, a rotary table, a sheave mechanism, a clamping mechanism, a driving mechanism, a lifting mechanism, a driving cylinder, a driving groove, a winding cylinder, a rectangular cylinder, a sliding arm, a connecting rod, a second vertical plate, an arc-shaped groove, a first driving column, a barrier strip and a bottom plate, wherein the first vertical plate is symmetrically fixed on the upper surface of the bottom plate, the middle parts of the two first vertical plates are rotatably connected with the main shaft through bearings, one side of one first vertical plate is fixedly provided with the sheave mechanism, the output end of the sheave mechanism is fixedly connected with the main shaft, the rotary tables are symmetrically fixed at two ends of the main shaft, the clamping mechanism is fixed at the outer side of the rotary table at equal intervals, the driving mechanism for driving the clamping mechanism to rotate is fixed at the top of the first vertical plate, the driving cylinder is fixed at one side of the first vertical plate close to the rotary table, the driving groove for driving the clamping mechanism to clamp is arranged at the outer side of the driving cylinder, a winding drum is clamped between the two clamping mechanisms;

the lifting mechanism is fixed on the upper surface of the bottom plate, a rectangular cylinder is fixed at the moving end of the lifting mechanism, a sliding arm is connected to the inner wall of the rectangular cylinder in a sliding mode, connecting rods are symmetrically fixed at two ends of the sliding arm, a second vertical plate is symmetrically fixed at one end, close to the lifting mechanism, of the upper surface of the bottom plate, an arc-shaped groove is formed in the upper end of the second vertical plate, the diameter of the arc-shaped groove is the same as the distance between the winding cylinder and a main shaft, a first driving column is fixed at one end, close to the arc-shaped groove, of the sliding arm, the first driving column is connected with the inner wall of the arc-shaped groove in a sliding mode, and a blocking strip is fixed at one end, far away from the first driving column, of the sliding arm.

Preferably, geneva mechanism includes first driving-disc, stirs groove, constant head tank, U-shaped board, first motor, second driving-disc, dials post, positioning disk and dodges the groove, first riser is fixed with first driving-disc through first riser to main shaft one end, first driving-disc surface equidistance has been seted up and has been stirred groove and constant head tank, one side that first riser is close to first driving-disc is fixed with the U-shaped board, U-shaped board middle part is fixed with first motor, the output of first motor is fixed with the second driving-disc, the outer fringe department of second driving-disc is fixed with dials the post, and dials post and stir groove sliding connection, second driving-disc one side is fixed with the positioning disk, and positioning disk and constant head tank sliding contact, positioning disk one side has been seted up and has been dodged the groove.

Preferably, the clamping mechanism comprises a fixed cylinder, a rotating cylinder, a square column, a first rotating rod, a first hexagonal column, a first rotating shaft, a first gear, an L-shaped block, a semicircular plectrum, a plectrum and a second driving column, the fixed cylinder is fixed on the outer side of the rotating disc at equal intervals, the rotating cylinder is connected to the inner wall of the fixed cylinder in a sliding manner, the square column is fixed at one end of the rotating cylinder, a through hole is formed in one end, close to the square column, of the fixed cylinder, the square column penetrates through the through hole, the first rotating rod is fixed at one end, far away from the square column, of the rotating cylinder, the inner wall of the first rotating rod is arranged in a hexagonal manner, the first hexagonal column is inserted and connected to the inner wall of the first rotating rod in a sliding manner, the first rotating shaft is fixed at one end of the first hexagonal column, the first rotating shaft is rotatably connected with the fixed cylinder through a bearing, the first gear is fixed at one end of the first rotating shaft, a slide way is formed in the bottom of the inner wall of the fixed cylinder, the slide inner wall sliding connection has L-shaped piece, L-shaped piece top is fixed with the semicircle plectrum, the first carousel outside is fixed with dials the ring, and dials the ring and rotate with semicircle plectrum inner wall and be connected, L-shaped piece bottom is fixed with the second drive post, and second drive post and drive inslot wall sliding connection.

Preferably, the driving groove is convexly arranged towards one end, and the protruding end of the driving groove is a blanking station.

Preferably, actuating mechanism includes second motor, second hexagonal post, push pedal, second gear and electric putter, first riser top is fixed with the second motor, the output of second motor is the setting of cavity hexagon, the output inner wall sliding connection of second motor has the second hexagonal post, second hexagonal post one end is rotated through the bearing and is connected with the push pedal, second hexagonal post one end is passed the push pedal and is fixed with the second gear, and the second gear is connected with first gear engagement, first riser top is fixed with electric putter, electric putter's output and push pedal fixed connection.

Preferably, elevating system includes elevator shell, threaded rod, third motor, elevator and sliding block, the bottom plate top is fixed with the elevator shell, the elevator shell inner wall rotates through the bearing and is connected with the threaded rod, elevator shell inner wall bottom is fixed with the third motor, the output and the threaded rod fixed connection of third motor, elevator shell inner wall upper end sliding connection has the elevator, screw hole and threaded rod threaded connection are passed through at the middle part of elevator, the sliding tray has been seted up to elevator shell bilateral symmetry, elevator both ends symmetry is fixed with the sliding block, and sliding block and sliding tray sliding connection, sliding block and rectangular cylinder fixed connection.

Preferably, square grooves are symmetrically formed in two ends of the winding drum, the square columns are connected with the square grooves in an inserted mode, circular grooves are symmetrically formed in the outer side of the winding drum, and the circular grooves are in rolling connection with the sliding arms.

Preferably, two the blend stop top is rotated through the bearing and is connected with the connecting axle, the symmetry in connecting axle both ends is fixed with the supporting rod, one blend stop one end is fixed with the fourth motor, the output and the supporting rod fixed connection of fourth motor, the supporting rod bottom is the arc setting.

Preferably, the first motor, the second motor, the third motor and the fourth motor are all speed reduction motors, and the second motor and the fourth motor are particularly worm speed reduction motors.

Preferably, a spring is fixed on one side of the second vertical plate, and one end of the spring is fixedly connected with the sliding arm.

Compared with the related technology, the extrusion production line of the PBS and PBAT biodegradable sheets provided by the invention has the following beneficial effects:

the invention provides an extrusion production line of PBS and PBAT biodegradable sheets, which comprises the following steps:

when the rolling device is used, the clamping mechanism on the rotary table divides the rotary table into a rolling station, a blanking station, a feeding station and a waiting station, the rolling tube is clamped on the rolling station by two clamping mechanisms, the driving mechanism drives the second gear to rotate, the clamping mechanism drives the square column to rotate, the rolling tube on the rolling station can be driven to rotate, the sheet is rolled, after the rolling is finished, the sheet is cut off by the cutter, the rolled rolling tube is driven to rotate downwards by the sheave mechanism, the second driving column slides in the driving groove during the downward overturning process of the clamping mechanism, the second driving column slowly moves to the convex end of the driving groove during the downward sliding process, so that the driving groove stirs the second driving column to move towards one end far away from the rolling tube, and then the first rotary rod drives the square column to slide by the movement of the toggle ring of the semicircular toggle piece, the square column is slowly separated from the square groove until the winding drum moves to the lowest end, the square column is completely separated from the square groove, the winding drum drops downwards under the action of gravity to complete discharging, in the discharging process, the sliding arm is driven by the lifting mechanism to slide along with the turntable, and the winding drum on the sliding arm moves along the rotating track of the clamping mechanism, so that the winding drum can be clamped by the clamping mechanism in the upwards sliding process, the winding drum is replaced, a new winding drum clamp is held between the clamping mechanisms to wait for next use, meanwhile, the wound winding drum drops at the bottom, the sliding arm resets in the winding process of the winding drum, the new winding drum moves to an upper drum station to wait for upper drum, the sequential reciprocation can automatically carry out discharging and winding drum installation, convenience and rapidness are achieved, and the working efficiency is high, and the manufacturing cost is lower, the connection is realized through a mechanical structure, the stability is higher, and the maintenance frequency of equipment is reduced.

Drawings

FIG. 1 is a partial view of the overall structure of a production line according to the present invention;

FIG. 2 is a schematic view of a winding device according to the present invention;

fig. 3 is a schematic structural view of a sheave mechanism provided by the present invention;

FIG. 4 is a second schematic view of the winding device according to the present invention;

FIG. 5 is a schematic view of a lifting mechanism according to the present invention;

FIG. 6 is a schematic view of a spring structure provided by the present invention;

FIG. 7 is a schematic view of a turntable structure provided in the present invention;

FIG. 8 is an enlarged view taken at A in FIG. 7;

FIG. 9 is a schematic view of a driving cylinder structure provided by the present invention;

FIG. 10 is a schematic view of a clamping mechanism according to the present invention;

FIG. 11 is a schematic view of a winding drum structure provided by the present invention;

fig. 12 is an expanded view of the driving slot provided by the present invention.

Reference numbers in the figures: 1. an extruder; 2. forming a mold; 3. a three-roller calender; 4. cooling the bracket; 5. a film cutting mechanism; 6. a winding device; 61. a first vertical plate; 62. a main shaft; 63. a turntable; 64. a sheave mechanism; 641. a first drive disk; 642. a poking groove; 643. positioning a groove; 644. a U-shaped plate; 645. a first motor; 646. a second drive disc; 647. shifting a column; 648. positioning a plate; 649. an avoidance groove; 65. a clamping mechanism; 651. a fixed cylinder; 652. rotating the column; 653. a square column; 654. a first rotating lever; 655. a first hexagonal column; 656. a first rotating shaft; 657. a first gear; 658. an L-shaped block; 659. a semicircular poking sheet; 6510. ring shifting; 6511. a second drive column; 66. a drive mechanism; 661. a second motor; 662. a second hexagonal column; 663. pushing a plate; 664. a second gear; 665. an electric push rod; 67. a lifting mechanism; 671. a lifting shell; 672. a threaded rod; 673. a third motor; 674. a lifting block; 675. a slider; 68. a drive cylinder; 69. a drive slot; 610. winding the roll; 6101. a square groove; 6102. a circular groove; 611. a rectangular cylinder; 612. a slide arm; 613. a connecting rod; 614. a second vertical plate; 615. an arc-shaped slot; 616. a first drive column; 617. blocking strips; 618. a base plate; 619. a connecting shaft; 6120. a clamping rod; 6121. a fourth motor; 6122. a spring.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Please refer to fig. 1-12, wherein fig. 1 is a partial schematic view of the overall structure of the production line according to the present invention; FIG. 2 is a schematic view of a winding device according to the present invention; fig. 3 is a schematic structural view of a sheave mechanism provided by the present invention; FIG. 4 is a second schematic view of the winding device according to the present invention; FIG. 5 is a schematic view of a lifting mechanism according to the present invention; FIG. 6 is a schematic view of a spring structure provided by the present invention; FIG. 7 is a schematic view of a turntable structure provided in the present invention; FIG. 8 is an enlarged view taken at A in FIG. 7; FIG. 9 is a schematic view of a driving cylinder structure provided in the present invention; FIG. 10 is a schematic view of a clamping mechanism according to the present invention; FIG. 11 is a schematic view of a winding drum structure provided by the present invention; fig. 12 is an expanded view of the driving slot provided by the present invention.

In the specific implementation process, as shown in fig. 1, the extrusion production line for the biodegradable sheets of PBS and PBAT sequentially comprises an extruder 1, a forming die 2, a three-roll calender 3, a cooling bracket 4, a film cutting mechanism 5 and a winding device 6 according to the process flow; a forming die 2 is arranged on one side of the extruder 1, a three-roller calender 3 is arranged on one side of the forming die 2, a cooling bracket 4 is arranged on one side of the three-roller calender 3, a film cutting mechanism 5 is arranged on one side of the cooling bracket 4, and a winding device 6 convenient for automatically replacing finished products is arranged on one side of the film cutting mechanism 5;

referring to fig. 2, 4, 7, 11 and 12, the winding device 6 includes a first vertical plate 61, a main shaft 62, a rotary table 63, a geneva mechanism 64, a clamping mechanism 65, a driving mechanism 66, a lifting mechanism 67, a driving cylinder 68, a driving groove 69, a winding cylinder 610, a rectangular cylinder 611, a sliding arm 612, a connecting rod 613, a second vertical plate 614, an arc-shaped groove 615, a first driving column 616, a blocking strip 617 and a bottom plate 618, the first vertical plate 61 is symmetrically fixed on the upper surface of the bottom plate 618, the main shaft 62 is rotatably connected to the middle of the two first vertical plates 61 through a bearing, the geneva mechanism 64 is fixed to one side of one of the first vertical plates 61, the output end of the geneva mechanism 64 is fixedly connected to the main shaft 62, the rotary tables 63 are symmetrically fixed to both ends of the main shaft, the clamping mechanisms 65 are fixed to the outer side of the rotary table 63 at equal intervals, the driving mechanism 66 for driving the clamping mechanisms 65 to rotate is fixed to the top of the first vertical plate 61, a driving cylinder 68 is fixed on one side of the first vertical plate 61 close to the rotating disc 63, a driving groove 69 used for driving the clamping mechanism 65 to clamp is formed in the outer side of the driving cylinder 68, the driving groove 69 is convexly arranged towards one end, the protruding end of the driving groove 69 is a blanking station, a winding drum 610 is clamped between the two clamping mechanisms 65, square grooves 6101 are symmetrically formed in two ends of the winding drum 610, the square columns 653 are spliced with the square grooves 6101, circular grooves 6102 are symmetrically formed in the outer side of the winding drum 610, and the circular grooves 6102 are in rolling connection with the sliding arms 612.

Referring to fig. 5 and 6, a lifting mechanism 67 is fixed on the upper surface of the bottom plate 618, a rectangular cylinder 611 is fixed at the moving end of the lifting mechanism 67, a sliding arm 612 is slidably connected to the inner wall of the rectangular cylinder 611, connecting rods 613 are symmetrically fixed at two ends of the sliding arm 612, a second vertical plate 614 is symmetrically fixed at one end, close to the lifting mechanism 67, of the upper surface of the bottom plate 618, an arc-shaped groove 615 is formed at the upper end of the second vertical plate 614, the diameter of the arc-shaped groove 615 is the same as the distance from the winding cylinder 610 to the main shaft 62, a first driving column 616 is fixed at one end, close to the arc-shaped groove 615, of the sliding arm 612, and a blocking strip 617 is fixed at one end, far from the first driving column 616, of the sliding arm 612;

referring to fig. 5, the lifting mechanism 67 includes a lifting shell 671, a threaded rod 672, a third motor 673, a lifting block 674 and a sliding block 675, the lifting shell 671 is fixed on the top of the bottom plate 618, the threaded rod 672 is rotatably connected to the inner wall of the lifting shell 671 through a bearing, the third motor 673 is fixed on the bottom of the inner wall of the lifting shell 671, the output end of the third motor 673 is fixedly connected with the threaded rod 672, the lifting block 674 is slidably connected to the upper end of the inner wall of the lifting shell 671, the middle part of the lifting block 674 is in threaded connection with the threaded rod 672 through a threaded hole, sliding grooves are symmetrically formed on two sides of the lifting shell 671, the sliding blocks 675 are symmetrically fixed to two ends of the lifting block 674, the sliding blocks 675 are slidably connected with the sliding grooves, and the sliding blocks 675 are fixedly connected with the rectangular cylinder 611;

during blanking, the lifting mechanism 67 drives the threaded rod 672 to rotate through the third motor 673, and further drives the lifting block 674 and the sliding block 675 to lift, the initial position of the lifting block 674 is at the bottommost, a new winding drum 610 is placed on the sliding arm 612 and limited through the circular groove 6102, then the fourth motor 6121 rotates to drive the connecting shaft 619 to rotate, and further drives the clamping rod 6120 to overturn to clamp the winding drum 610, at this time, the winding drum 610 is aligned with the square groove 6101 on the clamping mechanism 65, during the process that the sheave mechanism 64 drives the turntable 63 to rotate downwards, the lifting mechanism 67 simultaneously drives the rectangular drum 611 to lift, and further drives the sliding arm 612 to lift, and one end of the sliding arm 612 slides in the arc-shaped groove 615 through the first driving column 616, so that during the lifting process of the sliding arm 612, the arc-shaped groove 615 stirs the sliding of the first driving column 616, and then the sliding arm 612 can be pulled to slide towards one end, so that the sliding arm 612 slides along the track of the arc-shaped groove 615 in the lifting process, and further the winding drum 610 at the end part of the sliding arm 612 moves along the arc-shaped groove 615, and because the diameter of the arc-shaped groove 615 is the same as the distance from the winding drum 610 to the main shaft 62, the winding drum 610 on the sliding part keeps synchronous movement along with the clamping mechanism 65.

Referring to fig. 3, the geneva mechanism 64 includes a first driving disk 641, a toggle groove 642, a positioning groove 643, a U-shaped plate 644, a first motor 645, a second driving disk 646, a toggle column 647, a positioning disk 648 and an avoiding groove 649, wherein one end of the main shaft 62 passes through the first vertical plate 61 and is fixed with the first driving disk 641, the surface of the first driving disk 641 is equidistantly provided with the toggle groove 642 and the positioning groove 643, one side of the first vertical plate 61 close to the first driving disk 641 is fixed with the U-shaped plate 644, the middle of the U-shaped plate 644 is fixed with the first motor 645, the output end of the first motor 645 is fixed with the second driving disk 646, the outer edge of the second driving disk 646 is fixed with the toggle column 647, the toggle column 647 is slidably connected with the toggle groove 642, one side of the second driving disk 646 is fixed with the positioning disk 648, the positioning disk 648 is in sliding contact with the positioning groove 643, one side of the positioning disk 648 is provided with the avoiding groove 649, the second driving disc 646 is driven to rotate by the first motor 645, and then the first driving disc 641 is shifted to rotate a quarter of a turn by the shifting column 647, so that the wound winding drum 610 rotates downwards.

Referring to fig. 9 and 10, the clamping mechanism 65 includes a fixed cylinder 651, a rotary column 652, a square column 653, a first rotary rod 654, a first hexagonal column 655, a first rotary shaft 656, a first gear 657, an L-shaped block 658, a semicircular dial 659, a dial ring 6510 and a second driving column 6511, the fixed cylinder 651 is fixed on the outer side of the rotary disk 63 at equal intervals, the rotary column 652 is slidably connected to the inner wall of the fixed cylinder 651, the square column 653 is fixed at one end of the fixed cylinder 651 close to the square column 653, a through hole is formed in the end of the square column 653, the first rotary rod 654 is fixed at one end of the rotary column 652 far from the square column 653, the inner wall of the first rotary rod 654 is arranged in a hexagonal shape, the first hexagonal column 655 is slidably inserted into the inner wall of the first rotary rod 654, the first rotary shaft 656 is fixed at one end of the first hexagonal column 655, and the first rotary shaft 656 is rotatably connected to the fixed cylinder 651 through a bearing, first pivot 656 one end is passed fixed cylinder 651 and is fixed with first gear 657, the slide has been seted up to fixed cylinder 651 inner wall bottom, slide inner wall sliding connection has L-shaped piece 658, L-shaped piece 658 top is fixed with semicircle plectrum 659, the first carousel 63 outside is fixed with the shifting ring 6510, and the shifting ring 6510 rotates with semicircle plectrum 659 inner wall and is connected, L-shaped piece 658 bottom is fixed with second drive post 6511, and second drive post 6511 and driving groove 69 inner wall sliding connection.

Referring to fig. 7, 8 and 9, the driving mechanism 66 includes a second motor 661, a second hexagonal cylinder 662, a push plate 663, a second gear 664 and an electric push rod 665, the second motor 661 is fixed on the top of the first vertical plate 61, the output end of the second motor 661 is arranged in a hollow hexagon, the second hexagonal cylinder 662 is connected on the inner wall of the output end of the second motor 661 in a sliding manner, the push plate 663 is connected on one end of the second hexagonal cylinder 662 through a bearing in a rotating manner, the second gear 664 is fixed on one end of the second hexagonal cylinder 662 through the push plate 663, the second gear 664 is meshed with the first gear 657, the electric push rod 665 is fixed on the top of the first vertical plate 61, the output end of the electric push rod 665 is fixedly connected with the push plate 663, the second driving cylinder 6511 slides in the driving groove 69, the second driving cylinder 6511 slowly moves to the protruding end of the driving groove 69 during downward sliding, so that the driving slot 69 drives the second driving post 6511 to move towards the end far away from the winding drum 610, and further drives the ring 6510 to move through the semi-circular shifting piece 659, so that the first rotating rod 654 drives the square post 653 to slide, so that the square post 653 and the square slot 6101 are slowly separated, until the winding drum 610 moves to the lowest end, the square post 653 is completely separated from the square slot 6101, and the winding drum 610 drops downwards under the action of gravity.

Referring to fig. 5, the tops of the two blocking strips 617 are rotatably connected to a connecting shaft 619 through a bearing, two ends of the connecting shaft 619 are symmetrically fixed with clamping rods 6120, one end of one blocking strip 617 is fixed with a fourth motor 6121, an output end of the fourth motor 6121 is fixedly connected to the clamping rods 6120, the bottom of the clamping rod 6120 is arranged in an arc shape, and the winding drum 610 is clamped through the clamping rods 6120 to prevent the winding drum 610 from falling.

The first motor 645, the second motor 661, the third motor 673, and the fourth motor 6121 are all speed reduction motors, and the second motor 661 and the fourth motor 6121 are particularly worm speed reduction motors.

Referring to fig. 6, a spring 6122 is fixed on one side of the second vertical plate 614, one end of the spring 6122 is fixedly connected to the sliding arm 612, and the spring 6122 applies a certain pulling force to the sliding arm 612, so that the first driving post 616 is prevented from being locked in the arc-shaped groove 615.

The whole production line is mature in the prior art, and the following mainly provides the working principle of the winding device provided by the invention to help the skilled person to have a deeper understanding of the production line of the invention:

when in use, the clamping mechanism 65 on the rotary table 63 divides the rotary table 63 into a winding station, a blanking station, an upper cylinder station and a waiting station, the winding cylinder 610 is clamped on the winding station by the two clamping mechanisms 65, the electric push rod 665 drives the push plate 663 to slide, and further drives one end of the second gear 664 on the second hexagonal column 662 and one end of the first gear 657 of the first gear 664 to move, so that the first gear 657 is engaged with the second gear 664, and then the second gear 664 is driven to rotate by the rotation of the second motor 661, so that the second gear 664 drives the first gear 657 to rotate, and further drives the first rotating shaft 656 to rotate, so that the first rotating shaft 654 is driven to rotate the square column 653 by the rotating column 652, and further drives the winding cylinder 610 on the winding station to rotate, so as to wind up and wind up the sheet material, the sheet is cut off by the cutter, the first motor 645 drives the second driving disc 646 to rotate, the shifting column 647 is used for shifting the first driving disc 641 to rotate for a quarter of a turn, so that the wound winding drum 610 rotates downwards, the second driving column 6511 slides in the driving groove 69 in the process that the clamping mechanism 65 turns downwards, the second driving column 6511 slowly moves to the protruding end of the driving groove 69 in the process of sliding downwards, the driving groove 69 is used for shifting the second driving column 6511 to move towards one end far away from the winding drum 610, the shifting ring 6510 is further shifted by the semicircular shifting piece 659 to move, the first rotating rod 654 drives the square column 653 to slide, the square column 653 and the square groove 6101 are slowly separated, when the winding drum 610 moves to the lowest end, the square column 653 is completely separated from the square groove 6101, so that the winding drum 610 falls downwards under the action of gravity, and blanking is completed;

during blanking, the lifting mechanism 67 drives the threaded rod 672 to rotate through the third motor 673, so as to drive the lifting block 674 and the sliding block 675 to lift, the initial position of the lifting block 674 is at the bottommost part, the new winding drum 610 is placed on the sliding arm 612 and limited through the circular groove 6102, then the fourth motor 6121 rotates to drive the connecting shaft 619 to rotate, so as to drive the clamping rod 6120 to overturn and clamp the winding drum 610, at this time, the winding drum 610 is aligned with the square groove 6101 on the clamping mechanism 65, in the process that the rotating disc 63 is driven by the sheave mechanism 64 to rotate downwards, the lifting mechanism 67 simultaneously drives the rectangular cylinder 611 to lift, so as to drive the sliding arm 612 to lift, and one end of the sliding arm 612 slides in the arc-shaped groove 615 through the first driving column 616, so that in the lifting process of the sliding arm 612, the arc-shaped groove 616 stirs the sliding of the first driving column 616, and then the sliding arm 612 can be pulled to slide towards one end, so that the sliding arm 612 slides along the track of the arc-shaped groove 615 in the process of lifting, and further the winding drum 610 at the end part of the sliding arm 612 moves along the arc-shaped groove 615, because the diameter of the arc-shaped groove 615 is the same as the distance from the winding drum 610 to the main shaft 62, the winding drum 610 on the sliding part keeps synchronous movement with the clamping mechanism 65, and in the process of upward rotation of the clamping mechanism 65, the second driving column 6511 is slowly reset along the driving column, so that the square column 653 slowly extends out, and further the square column 653 is slowly inserted into the square groove 6101 of the winding drum 610, and the end part of the square column 653 is provided with a chamfer, so that even if the square column 653 is not aligned with the four corners of the square groove 6101, the square column 653 rotates after being pressed until the square column 653 is inserted into the square groove 6101, so that a new winding drum 610 is clamped between the clamping mechanism 65, waiting for the next use, meanwhile, the winding drum 610 after winding falls down at the bottom, and the sliding arm 612 resets in the winding process of the winding drum 610, so that the new winding drum 610 moves to an upper drum station to wait for winding up, and the winding drum 610 can be automatically installed in a blanking mode, and the winding drum is convenient and quick to use and low in manufacturing cost.

The circuits and controls involved in the present invention are all the prior art, and are not described herein in detail.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A PBS (poly butylenes succinate) and PBAT (poly butylenes succinate) biodegradable sheet extrusion production line comprises an extruder (1) and is characterized in that a forming die (2) is arranged on one side of the extruder (1), a three-roller calender (3) is arranged on one side of the forming die (2), a cooling bracket (4) is arranged on one side of the three-roller calender (3), a film cutting mechanism (5) is arranged on one side of the cooling bracket (4), and a winding device (6) convenient for automatically replacing finished products is arranged on one side of the film cutting mechanism (5);

the winding device (6) comprises first vertical plates (61), a main shaft (62), a turntable (63), a geneva mechanism (64), a clamping mechanism (65), a driving mechanism (66), a lifting mechanism (67), a driving cylinder (68), a driving groove (69), a winding cylinder (610), a rectangular cylinder (611), a sliding arm (612), a connecting rod (613), a second vertical plate (614), an arc-shaped groove (615), first driving columns (616), barrier strips (617) and a bottom plate (618), wherein the upper surface of the bottom plate (618) is symmetrically fixed with the first vertical plates (61), the middle parts of the two first vertical plates (61) are rotatably connected with the main shaft (62) through bearings, one side of one first vertical plate (61) is fixed with the geneva mechanism (64), the output end of the geneva mechanism (64) is fixedly connected with the main shaft (62), and the turntables (63) are symmetrically fixed at the two ends of the main shaft, clamping mechanisms (65) are fixed on the outer side of the rotary table (63) at equal intervals, a driving mechanism (66) used for driving the clamping mechanisms (65) to rotate is fixed on the top of the first vertical plate (61), a driving cylinder (68) is fixed on one side, close to the rotary table (63), of the first vertical plate (61), a driving groove (69) used for driving the clamping mechanisms (65) to clamp is formed in the outer side of the driving cylinder (68), and a winding drum (610) is clamped between the two clamping mechanisms (65);

a lifting mechanism (67) is fixed on the upper surface of the bottom plate (618), a rectangular cylinder (611) is fixed at the movable end of the lifting mechanism (67), the inner wall of the rectangular cylinder (611) is connected with a sliding arm (612) in a sliding way, two ends of the sliding arm (612) are symmetrically fixed with connecting rods (613), a second vertical plate (614) is symmetrically fixed at one end of the upper surface of the bottom plate (618) close to the lifting mechanism (67), an arc-shaped groove (615) is formed at the upper end of the second vertical plate (614), and the diameter of the arc-shaped groove (615) is the same as the distance from the winding drum (610) to the main shaft (62), a first driving column (616) is fixed at one end of the sliding arm (612) close to the arc-shaped groove (615), the first driving column (616) is connected with the inner wall of the arc-shaped groove (615) in a sliding manner, and one end of the sliding arm (612) far away from the first driving column (616) is fixedly provided with a blocking strip (617);

the clamping mechanism (65) comprises a fixed cylinder (651), a rotating column (652), a square column (653), a first rotating rod (654), a first hexagonal column (655), a first rotating shaft (656), a first gear (657), an L-shaped block (658), a semicircular plectrum (659), a plectrum ring (6510) and a second driving column (6511), the fixed cylinder (651) is fixed on the outer side of the rotating disc (63) at equal intervals, the rotating column (652) is connected to the inner wall of the fixed cylinder (651) in a sliding manner, the square column (653) is fixed at one end of the rotating column (652), a through hole is formed at one end of the fixed cylinder (651) close to the square column (653), the square column (653) penetrates through the through hole, the first rotating rod (654) is fixed at one end of the rotating column (652) far away from the square column (653), the inner wall of the first rotating rod (654) is arranged in a hexagonal manner, and the first hexagonal column (655) is inserted into the inner wall of the first rotating rod (652) in a sliding manner, a first rotating shaft (656) is fixed at one end of the first hexagonal column (655), the first rotating shaft (656) is rotatably connected with the fixed cylinder (651) through a bearing, a first gear (657) penetrates through the fixed cylinder (651) at one end of the first rotating shaft (656), a slide way is formed in the bottom of the inner wall of the fixed cylinder (651), an L-shaped block (658) is slidably connected to the inner wall of the slide way, a semicircular shifting piece (659) is fixed to the top of the L-shaped block (658), a shifting ring (6510) is fixed to the outer side of the first turntable (63), the shifting ring (6510) is rotatably connected with the inner wall of the semicircular shifting piece (659), a second driving column (6511) is fixed to the bottom of the L-shaped block (658), and the second driving column (6511) is slidably connected with the inner wall of the driving groove (69);

the driving groove (69) is convexly arranged towards one end, and the protruded end of the driving groove (69) is a blanking station;

the lifting mechanism (67) comprises a lifting shell (671), a threaded rod (672), a third motor (673), a lifting block (674) and a sliding block (675), a lifting shell (671) is fixed at the top of the bottom plate (618), a threaded rod (672) is rotatably connected to the inner wall of the lifting shell (671) through a bearing, a third motor (673) is fixed at the bottom of the inner wall of the lifting shell (671), the output end of the third motor (673) is fixedly connected with a threaded rod (672), the upper end of the inner wall of the lifting shell (671) is connected with a lifting block (674) in a sliding way, the middle part of the lifting block (674) is in threaded connection with a threaded rod (672) through a threaded hole, sliding grooves are symmetrically formed in two sides of the lifting shell (671), sliding blocks (675) are symmetrically fixed at two ends of the lifting block (674), the sliding block (675) is in sliding connection with the sliding groove, and the sliding block (675) is fixedly connected with the rectangular cylinder (611);

the top of the two retaining strips (617) is rotatably connected with a connecting shaft (619) through a bearing, two ends of the connecting shaft (619) are symmetrically fixed with clamping rods (6120), one end of the retaining strip (617) is fixed with a fourth motor (6121), the output end of the fourth motor (6121) is fixedly connected with the clamping rods (6120), and the bottom of the clamping rods (6120) is arranged in an arc shape.

2. The PBS/PBAT biodegradable sheet extrusion production line according to claim 1, wherein the geneva mechanism (64) comprises a first driving disk (641), a toggle groove (642), a positioning groove (643), a U-shaped plate (644), a first motor (645), a second driving disk (646), a toggle column (647), a positioning disk (648) and an avoidance groove (649), one end of the main shaft (62) penetrates through a first vertical plate (61) to be fixed with the first driving disk (641), the surface of the first driving disk (641) is equidistantly provided with the toggle groove (642) and the positioning groove (643), one side of the first vertical plate (61) close to the first driving disk (641) is fixed with the U-shaped plate (644), the middle of the U-shaped plate (644) is fixed with the first motor (645), the output end of the first motor (645) is fixed with the second driving disk (646), and the outer edge of the second driving disk (646) is fixed with the toggle column (647), and the toggle column (647) is in sliding connection with the toggle groove (642), a positioning disc (648) is fixed on one side of the second driving disc (646), the positioning disc (648) is in sliding contact with the positioning groove (643), and an avoiding groove (649) is formed on one side of the positioning disc (648).

3. The PBS, PBAT biodegradable sheet extrusion line of claim 2, characterized in that the driving mechanism (66) comprises a second motor (661), a second hexagonal column (662), a push plate (663), a second gear (664) and an electric push rod (665), a second motor (661) is fixed on the top of the first vertical plate (61), the output end of the second motor (661) is arranged in a hollow hexagon shape, the inner wall of the output end of the second motor (661) is connected with a second hexagonal column (662) in a sliding way, one end of the second hexagonal column (662) is rotatably connected with a push plate (663) through a bearing, one end of the second hexagonal column (662) penetrates through the push plate (663) to be fixed with a second gear (664), the second gear (664) is meshed with the first gear (657), an electric push rod (665) is fixed at the top of the first vertical plate (61), the output end of the electric push rod (665) is fixedly connected with the push plate (663).

4. The extrusion line for the biodegradable sheets of PBS and PBAT according to claim 1, wherein the two ends of the winding drum (610) are symmetrically provided with a square groove (6101), the square column (653) is inserted into the square groove (6101), the outer side of the winding drum (610) is symmetrically provided with a circular groove (6102), and the circular groove (6102) is in rolling connection with the sliding arm (612).

5. The PBS, PBAT biodegradable sheet extrusion line of claim 3, wherein the first motor (645), the second motor (661), the third motor (673), and the fourth motor (6121) are all gear motors.

6. The extrusion line for the biodegradable sheets of PBS and PBAT according to claim 1, wherein a spring (6122) is fixed on one side of the second vertical plate (614), and one end of the spring (6122) is fixedly connected with the sliding arm (612).