CN111497058A

CN111497058A - Plastic film blowing system with reheating function

Info

Publication number: CN111497058A
Application number: CN202010369517.3A
Authority: CN
Inventors: 明柏森
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-03
Filing date: 2020-05-03
Publication date: 2020-08-07

Abstract

The invention discloses a plastic film blowing system with a reheating function, which comprises a raw material drying device and a film blowing device, wherein plastic raw materials dried by the raw material drying device are manually fed into a storage hopper of the film blowing device; the raw material drying device comprises a drying shell, a reheating cylinder is fixedly connected to the bottom wall of the drying shell, the upper end of the reheating cylinder is fixedly connected with a stirring motor, an output shaft of the stirring motor is fixedly connected with a stirring block through a folding rod, an electric blanking door is arranged on the bottom wall of the drying shell, an electric heater is fixedly connected to the reheating cylinder, the upper end of the electric heater is communicated with the outlet of a suction fan through a heater air inlet pipe, the inlet of the suction fan is communicated with the outlet of an activated carbon box, a plurality of layers of honeycomb activated carbon layers are arranged in the activated carbon box, an inlet air pipe of the activated carbon box is opened on the surface of the reheating cylinder, and an outlet pipe of the electric heater; the below of dry casing is the blanking casing, and the bottom of blanking casing sets up the flashboard door, and the upper end open-ended collecting barrel is placed to flashboard door below.

Description

Plastic film blowing system with reheating function

Technical Field

The invention relates to the technical field of film blowing equipment, in particular to a plastic film blowing system with a reheating function.

Background

The film blowing machine is a film production automation equipment, the film blowing machine mainly heats and melts plastic particles and blows into a film, the melted plastic is filtered by a machine head to remove impurities and comes out from a die head die orifice, and is cooled by an air ring, blown up by a herringbone plate and a traction roller, and a finished film is coiled into a barrel;

before the plastic raw materials are melted, hot air drying is needed to ensure the melting effect. The existing raw material drying device basically adopts one of static or dynamic drying, and hot air is directly exhausted as exhaust air only once, so that the energy utilization rate is low; meanwhile, the waste gas generated in the process of melting raw materials in the current film blowing device is directly discharged into the atmosphere, so that the body of an operator is easily damaged, and the environment is polluted. The invention relates to a film blowing device, which is a patent application filed by the applicant on the same day and mainly aims at protecting a raw material drying device and an integral film blowing system.

Disclosure of Invention

In order to solve the above problems, the present invention provides the following technical solutions:

a plastic film blowing system with a reheating function comprises a raw material drying device and a film blowing device, wherein a plastic raw material dried by the raw material drying device is manually fed into a storage hopper of the film blowing device; the raw material drying device comprises a drying shell, a reheating cylinder is fixedly connected to the bottom wall of the drying shell, the upper end of the reheating cylinder is fixedly connected with a stirring motor, an output shaft of the stirring motor is fixedly connected with a stirring block through a folding rod, an electric blanking door is arranged on the bottom wall of the drying shell, an electric heater is fixedly connected to the reheating cylinder, the upper end of the electric heater is communicated with the outlet of a suction fan through a heater air inlet pipe, the inlet of the suction fan is communicated with the outlet of an activated carbon box, a plurality of layers of honeycomb activated carbon layers are arranged in the activated carbon box, an inlet air pipe of the activated carbon box is opened on the surface of the reheating cylinder, and an outlet pipe of the electric heater; a blanking shell is arranged below the drying shell, a flashboard door is arranged at the bottom of the blanking shell, and a material collecting barrel with an opening at the upper end is arranged below the flashboard door; the side wall of the drying shell is communicated with a hot air inlet pipe, the side wall of the blanking shell is communicated with an exhaust gas exhaust pipe, a moisture sensor is arranged in the air inlet pipe of the heater, and the moisture sensor is electrically connected with an alarm on the side face.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:

1. the electric heater and the activated carbon box in the reheating cylinder are arranged, so that medium-temperature air which is dried and heated in the drying shell can be reheated and dried, the medium-temperature air is used for drying materials on the flashboard door, the total energy utilization rate of the hot air is improved, the structural arrangement is compact, the occupied space is small, two drying modes of stirring heating drying and static heating drying are provided, and the drying efficiency is high;

2. be provided with the striker plate, the connecting rod, the stopper, the rubber pad, the dust filter, the active carbon adsorption board, first adsorption box, the box is adsorbed to the second, cooperation through dust filter and active carbon adsorption board is used, be convenient for filter the waste gas that melts the plastics and produce, the dust that contains in the getting rid of waste gas and the material that has the peculiar smell, avoid directly leading to the fact the pollution to the atmosphere in the air of discharging, use through the cooperation of first adsorption box and second adsorption box simultaneously, absorb the harmful gas of dissolving in water and lime wash in the waste gas, cooperation through striker plate and rubber pad is used, make the notes material pipe keep sealed, avoid waste gas by annotating in the material pipe emits into the air, reduce harmful gas's emission.

3. Be provided with regulation electric putter, promote the piece, the band pulley, the deflector roll, the belt, the action wheel, the rotating electrical machines, support column and adjusting sleeve, use through adjusting electric putter, be convenient for change the interval between the deflector roll, make the device be applicable to not unidimensional film, cooperation through band pulley and belt is used simultaneously, make the deflector roll can rotate, utilize frictional force between deflector roll and the film to play the effect of dragging to the film, make the film advance more stably can not pile up in the top of blown film die head, use through support column and adjusting sleeve's cooperation simultaneously, can adjust the angle of deflector roll, make the device be applicable to the film of different diameters.

4. Be provided with the water pump, the inlet tube, the movable rod, the drainage hole, a cooling cylinder, a static electricity removal section of thick bamboo and grounding piece, cooperation through a cooling cylinder and a static electricity removal section of thick bamboo is used, the effect of rolling the flattening has been played to the film, avoid producing the fold in the film transportation, the use of cooperation grounding piece simultaneously, the effect of static electricity removal has been played to the film, cooperation through water pump and inlet tube is used, carry water to the movable rod inside, water passes through inside the drainage hole infiltration cooling cylinder, a cooling cylinder cools off the surface of film, it leads to the surperficial high temperature to avoid the film to receive too much friction in the transportation.

5. Be provided with solid fixed splint, the fly leaf, the clamp splice, the cut-off groove, the spout, hydraulic telescoping rod, cutting tool and slider, use through hydraulic telescoping rod, be convenient for promote cutting tool and advance to the cut-off groove along the spout, and then carry out automatic cutout to the film, work efficiency is improved, cooperation through spout and slider is used, it is more stable to guarantee that cutting tool advances, avoid the cut-off opening untidy, use through the cooperation of solid fixed splint and clamp splice simultaneously, it is fixed to be convenient for carry out the centre gripping to the film, avoid cutting off in-process film and drop and influence subsequent rolling.

6. Be provided with the dwang, the wind-up roll, the apparatus further comprises a rotating shaft, the montant, the stop collar, fastening bolt, extrusion spring and pinch roller, cooperation through wind-up roll and pinch roller is used, the effect that compresses tightly has been played the film of rolling, it is not hard up to avoid the film, use through the extrusion spring, make the pinch roller can advance along with the film thickness of wind-up roll surface rolling, make the pinch roller closely laminate with the surface of film all the time, cooperation through stop collar and fastening bolt is used simultaneously, spacing fixed effect has been played to the dwang, the position of pole can not take place to rock in the assurance course of working.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is an isometric view of a feedstock drying apparatus;

FIG. 2 is a cross-sectional view of a feedstock drying apparatus;

FIG. 3 is an external view of the reheat cylinder;

FIG. 4 is an isometric view of the power blanking door;

FIG. 5 is a schematic structural view of a film blowing apparatus;

FIG. 6 is a schematic view of a pull roll mounting configuration;

FIG. 7 is a schematic view of the mounting structure of the baffle;

FIG. 8 is a schematic view of the installation structure of the dust filter plate;

FIG. 9 is a schematic view of an installation structure of the guide roller;

FIG. 10 is a schematic view of a mounting structure of the pulley;

FIG. 11 is a schematic view of the installation structure of the second guide roller;

FIG. 12 is a schematic view of the mounting structure of the static discharge mechanism;

FIG. 13 is a schematic view of the mounting structure of the cutting mechanism;

fig. 14 is a schematic view of the mounting structure of the winding mechanism.

Reference numbers in the figures: 1. a frame; 2. a film blowing die head; 3. an extrusion pump; 4. a material melting tank body; 5. a blower; 6. a material injection pipe; 7. a storage hopper;

8. a waste gas removing mechanism; 801. a rotating shaft; 802. a striker plate; 803. a connecting rod; 804. a fixed block; 805. a limiting block; 806. a rubber pad; 807. an axial flow fan; 808. a dust removal box body; 809. a dust filter plate; 810. an activated carbon adsorption plate; 811. a first connecting pipe; 812. a first adsorption tank body; 813. a second connecting pipe; 814. a second adsorption box body;

9. a guide mechanism; 901. a support plate; 902. a first frame; 903. a through groove; 904. adjusting the electric push rod; 905. a pushing block; 906. a second frame; 907. mounting grooves; 908. a pulley; 909. a guide roller; 910. a belt; 911. a driving wheel; 912. a rotating electric machine; 913. a support pillar; 914. an adjustment sleeve;

10. a traction roller; 11. a traction motor; 12. a first guide roller; 13. a mounting frame;

14. a static electricity removing mechanism; 1401. a water storage tank; 1402. a water pump; 1403. a water inlet pipe; 1404. a movable rod; 1405. water filtering holes; 1406. a cooling cylinder; 1407. a water outlet pipe; 1408. an electric telescopic rod; 1409. a connecting plate; 1410. a static electricity removing cylinder; 1411. a connecting wire; 1412. a ground block;

15. a second guide roller;

16. a cutting mechanism; 1601. mounting blocks; 1602. fixing the clamping plate; 1603. a movable plate; 1604. a return spring; 1605. a clamping block; 1606. a fixing plate; 1607. cutting off the groove; 1608. a chute; 1609. a hydraulic telescopic rod; 1610. a connecting rod; 1611. cutting off the cutter; 1612. a slider;

17. a winding mechanism; 1701. a support frame; 1702. rotating the rod; 1703. a wind-up roll; 1704. a fixed seat; 1705. a rotating shaft; 1706. rotating the block; 1707. a vertical rod; 1708. a limiting sleeve; 1709. a handle; 1710. fastening a bolt; 1711. a winding motor; 1712. a conveyor belt; 1713. a movable groove; 1714. a compression spring; 1715. a movable block; 1716. a pressure roller;

1801. drying the shell; 1802. reheating the cylinder; 1803. a stirring motor; 1804. a folding rod; 1805. stirring blocks; 1806. an electric blanking door; 1807. an electric heater; 1808. a heater air inlet pipe; 1809. a suction fan; 1810. an activated carbon cartridge; 1811. an inlet air duct; 1812. a branch nozzle; 1813. a blanking shell; 1814. a gate plate door; 1815. a material collecting barrel; 1816. a hot air inlet pipe; 1817. a waste gas exhaust pipe; 1818. an alarm; 1819. feeding into a hopper; 1820. a feeding valve; 1821. a blanking motor; 1822. a drive shaft.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): a plastic film blowing system with reheating function as shown in fig. 1-14, which comprises a raw material drying device and a film blowing device, wherein the plastic raw material dried by the raw material drying device is manually fed into a storage hopper 7 of the film blowing device; the raw material drying device comprises a drying shell 1801, a reheating cylinder 1802 is fixedly connected to the bottom wall of the drying shell 1801, the upper end of the reheating cylinder 1802 is fixedly connected to a stirring motor 1803, an output shaft of the stirring motor 1803 is fixedly connected to a stirring block 1805 through a folding rod 1804, an electric blanking door 1806 is arranged on the bottom wall of the drying shell 1801, an electric heater 1807 is fixedly connected to the reheating cylinder 1802, the upper end of the electric heater 1807 is communicated with an outlet of a suction fan 1809 through a heater air inlet pipe 1808, an inlet of the suction fan 1809 is communicated with an outlet of an activated carbon box 1810, a plurality of honeycomb activated carbon layers are arranged in the activated carbon box 1810 (a fine-pore metal net is arranged in the outlet of the activated carbon box 1810 (the outlet of the activated carbon box 1810 is internally provided with an air pipe 1/2 with the diameter smaller than the equivalent diameter of the smallest particles of the activated carbon), the inlet 1811 of; a blanking shell 1813 is arranged below the drying shell 1801, a shutter door 1814 is arranged at the bottom of the blanking shell 1813, and a material collecting barrel 1815 with an opening at the upper end is arranged below the shutter door 1814; the side wall of the drying shell 1801 is communicated with a hot air inlet pipe 1816 (a fine-mesh metal net is arranged inside to prevent raw materials from leaking outside), the side wall of the blanking shell 1813 is communicated with an exhaust air pipe 1817, a moisture sensor is arranged in the heater air inlet pipe 1808, and the moisture sensor is electrically connected with an alarm 1818 on the side surface.

The upper end of the drying casing 1801 is communicated with a feeding hopper 1819, a feeding valve 1820 is arranged in the feeding hopper 1819, and access doors are arranged on the drying casing 1801 and the reheating cylinder 1802; the side surface of the electric blanking door 1806 is fixedly connected with a driving shaft 1822 driven by a blanking motor 1821, and the driving shaft 1822 drives the electric blanking door 1806 to turn down with the driving shaft 1822 as a central shaft during blanking.

Referring to fig. 5-14, the film blowing device comprises a frame 1, a film blowing die head 2 is fixedly installed in the middle of the bottom end of the frame 1, melted plastic is blown into a plastic film by an air blower 5, an extrusion pump 3 is fixedly connected to one end of the top of the film blowing die head 2, a material melting tank 4 is fixedly installed at one end of the extrusion pump 3 to melt raw materials, the raw materials are conveyed into the film blowing die head 2 by the extrusion pump 3, the air blower 5 is fixedly connected to one end of the bottom end of the film blowing die head 2, which is far away from the extrusion pump 3, an injection pipe 6 is fixedly connected to one end of the top of the material melting tank 4, a storage hopper 7 is fixedly installed at the top of the injection pipe 6, a waste gas removing mechanism,

the waste gas removing mechanism 8 comprises a rotating shaft 801, a material baffle 802, a connecting rod 803, a fixed block 804, a limiting block 805, a rubber pad 806, an axial flow fan 807, a dust removing box body 808, a dust filtering plate 809, an activated carbon adsorption plate 810, a first connecting pipe 811, a first adsorption box body 812, a second connecting pipe 813 and a second adsorption box body 814;

a rotating shaft 801 is movably arranged at one end of the middle part of the material injection pipe 6, a material baffle plate 802 is fixedly connected at the middle part of the rotating shaft 801, a connecting rod 803 is fixedly connected at one end of the rotating shaft 801, a fixing block 804 is fixedly arranged at one end of the middle part of the material injection pipe 6 far away from the rotating shaft 801, a limiting block 805 is movably connected at one end of the fixing block 804 through a movable shaft, a rubber pad 806 is fixedly bonded at a position above the material baffle plate 802 in the material injection pipe 6, the material baffle plate 802 is positioned in the material injection pipe 6, the material baffle plate 802 is tightly attached to the rubber pad 806 in front, one end of the connecting rod 803 is attached to the limiting block 805, the limiting block 805 plays a supporting role on the connecting rod 803, further plays a limiting role on the material baffle plate 802, the sealing between the material baffle plate 802 and the rubber pad 806 is ensured, the, one end of the axial flow fan 807 is fixedly connected with a dust removal box 808, a dust filter plate 809 is fixedly installed at the top of the dust removal box 808, an activated carbon adsorption plate 810 is fixedly installed at the middle part of the dust removal box 808, the dust filter plate 809 and the activated carbon adsorption plate 810 can filter waste gas generated by melting plastics to remove dust and substances with peculiar smell contained in the waste gas, one end of the bottom of the dust removal box 808 is fixedly connected with a first connecting pipe 811, one end of the first connecting pipe 811 is fixedly installed with a first adsorption box 812, the top end of the first adsorption box 812 is fixedly connected with a second connecting pipe 813, one end of the second connecting pipe 813 is fixedly installed with a second adsorption box 814, the first adsorption box 812 is filled with water, the second adsorption box 814 is filled with lime water, harmful gases dissolved in the waste gas and the lime water can be absorbed, and the harmful gases are prevented from being directly discharged to the atmosphere to pollute the environment, the first connection pipe 811 and the second connection pipe 813 extend to the inside of the water and lime water, respectively, so that the exhaust gas is sufficiently reacted inside the water and lime water;

a guide mechanism 9 is fixedly installed at the top of the frame 1, and the guide mechanism 9 comprises a support plate 901, a first frame 902, a through groove 903, an adjusting electric push rod 904, a pushing block 905, a second frame 906, an installation groove 907, a belt wheel 908, a guide roller 909, a belt 910, a driving wheel 911, a rotating motor 912, a support column 913 and an adjusting sleeve 914;

two ends of the top of the frame 1 are symmetrically and fixedly provided with a support plate 901, one adjacent end of the support plate 901 is movably connected with a first frame 902 through a movable shaft, the top of the support plate 901 is provided with a through groove 903, the inside of the through groove 9033 is fixedly provided with an adjusting electric push rod 904, one end of the adjusting electric push rod 904 is fixedly connected with a push block 905, one end of the push block 905 is movably connected with a second frame 906 through the movable shaft, an angle of 35 degrees is formed between the first frame 902 and the second frame 906, a gap is reserved between the top ends of the first frame 902 and the second frame 906, a film passes through the gap, the inside of the first frame 902 and the second frame 906 are provided with mounting grooves 907, belt wheels 908 are fixedly arranged at equal intervals inside the mounting grooves 907, one end of the belt wheel 908 is fixedly connected with a guide roller 909, the guide roller 909 is movably connected with the first frame 902 and the second frame 906, the rotating motor 912 drives the driving wheel 911 and the belt 910 to rotate, so that the guide roller 909 can rotate, the film is dragged while rotating, the film is prevented from being accumulated above the film blowing die head 2 to influence the normal film blowing process, the driving wheel 911 is fixedly installed at the bottom of the installation groove 907, the belt 910 is sleeved on the surfaces of the belt wheel 908 and the driving wheel 911, one end of the driving wheel 911 is fixedly connected with the rotating motor 912, the supporting columns 913 are symmetrically and fixedly installed at the bottom ends of the first frame 902 and the second frame 906, the adjusting sleeve 914 is sleeved on the surface of the supporting column 913, the adjusting sleeve 914 is in threaded connection with the supporting column 913, the position of the supporting column 913 can be conveniently adjusted by using the adjusting sleeve 914, the angle of the guide roller 909 is adjusted, and the device is suitable;

the middle of the top end of the rack 1 is fixedly provided with a traction roller 10, one end of the traction roller 10 is fixedly connected with a traction motor 11, one end of the top of the rack 1 is fixedly provided with a first guide roller 12, one side position of the bottom of the rack 1 is fixedly provided with a mounting frame 13, one end of the top of the mounting frame 13, which is close to the rack 1, is fixedly connected with a static removing mechanism 14, and the static removing mechanism 14 comprises a water storage tank 1401, a water pump 1402, a water inlet pipe 1403, a movable rod 1404, a water filtering hole 1405, a cooling cylinder 1406, a water outlet pipe 1407, an electric telescopic rod 1408, a connecting plate 1409, a static removing cylinder;

a water storage tank 1401 is fixedly arranged at one end of the bottom of the mounting frame 13 close to the rack 1, a water pump 1402 is fixedly arranged inside the water storage tank 1401, a water inlet pipe 1403 is fixedly connected to one end of the water pump 1402, a movable rod 1404 is arranged at a position, above the water storage tank 1401, in the middle of the mounting frame 13, water filtering holes 1405 are equidistantly formed in the middle of the movable rod 1404, a cooling cylinder 1406 is sleeved in the middle of the movable rod 1404 for cooling the surface of a film, the phenomenon that the surface temperature of the film is too high due to excessive friction in the conveying process is avoided, a static removing cylinder 1410 is arranged right above the cooling cylinder 1406, a gap is reserved between the static removing cylinder 1410 and the cooling cylinder 1406, the film passes through the gap, the rolling and leveling effects on the film are achieved, wrinkles are avoided from being generated in the film conveying process, a water outlet pipe 1407 is fixedly connected to one end of the, the other ends of the water inlet pipe 1403 and the water outlet pipe 1407 both extend into the water storage tank 1401 to ensure that water in the water storage tank 1401 and the cooling cylinder 1406 keeps circulating, two ends of the top of the mounting frame 13 are fixedly provided with electric telescopic rods 1408, the top of the electric telescopic rods 1408 is fixedly connected with a connecting plate 1409, the middle part of the connecting plate 1409 is movably provided with a static electricity removing cylinder 1410, one end of the static electricity removing cylinder 1410 is fixedly connected with a connecting wire 1411, one end of the connecting wire 1411 is fixedly provided with a grounding block 1412, the surface of the static electricity removing cylinder 1410 is 304 stainless steel, and the grounding block 1412 is fixedly connected with the ground, so that a static;

a second guide roller 15 is fixedly installed at one side position of the static eliminating mechanism 14 on the top of the mounting frame 13, a cutting mechanism 16 is fixedly installed in the middle of the top end of the mounting frame 13, and the cutting mechanism 16 comprises a mounting block 1601, a fixed clamping plate 1602, a movable plate 1603, a return spring 1604, a clamping block 1605, a fixed plate 1606, a cutting groove 1607, a sliding groove 1608, a hydraulic telescopic rod 1609, a connecting rod 1610, a cutting tool 1611 and a sliding block 1612;

the middle part of the top end of the mounting rack 13 is fixedly provided with a mounting block 1601, one end of the top of the mounting block 1601, which is close to the second guide roller 15, is fixedly provided with a fixed clamp 1602, one end of the fixed clamp 1602 is connected with a movable plate 1603 through a movable shaft, the middle part of the movable plate 1603 is fixedly connected with a return spring 1604, one end of the return spring 1604 is fixedly connected with the fixed clamp 1602, one end of the movable plate 1603 is fixedly provided with a clamp block 1605, through the matching use of the fixed clamp 1602 and the clamp block 1605, the clamping and fixing of the film are facilitated, the film falling off in the cutting process is avoided from influencing the subsequent rolling, one end of the bottom of the mounting block 1601, which is close to the second guide roller 15, is fixedly provided with a fixed plate 1606, the middle part of the fixed plate 1606 is provided with a cutting groove 1607, the inside of the cutting groove 1607 is bonded with a cushion, the cutting, sliding grooves 1608 are symmetrically formed in two sides of the mounting block 1601, one end, far away from the fixing plate 1606, of the bottom of the mounting block 1601 is symmetrically and fixedly provided with a hydraulic telescopic rod 1609, one end of the hydraulic telescopic rod 1609 is fixedly connected with a connecting rod 1610, one end of the connecting rod 1610 is fixedly connected with a cutting tool 1611, two ends of the connecting rod 1610 are symmetrically and fixedly connected with sliding blocks 1612, the sliding blocks 1612 are embedded in the sliding grooves 1608, and the connecting rod 1610 and the mounting block 1601 are in fit sliding connection through the sliding blocks 1612 and the sliding grooves 1608, so that the cutting tool 1611 is kept stable in the advancing process;

a winding mechanism 17 is fixedly mounted at one end of the top of the mounting rack 13, which is far away from the second guide roller 15, and the winding mechanism 17 comprises a support frame 1701, a rotating rod 1702, a winding roller 1703, a fixed seat 1704, a rotating shaft 1705, a rotating block 1706, a vertical rod 1707, a limiting sleeve 1708, a handle 1709, a fastening bolt 1710, a winding motor 1711, a conveying belt 1712, a movable groove 1713, an extrusion spring 1714, a movable block 1715 and a pressing roller 1716;

a support frame 1701 is fixedly arranged at one end of the top of the mounting frame 13 far away from the second guide roller 15, a rotating rod 1702 is movably arranged at the top of the support frame 1701, a winding roller 1703 is sleeved at the middle part of the rotating rod 1702, a fixed seat 1704 is fixedly arranged at the position of one side of the support frame 1701 at the top of the mounting frame 13, a rotating shaft 1705 is movably arranged at the middle part of the fixed seat 1704, a rotating block 1706 is fixedly arranged at the middle part of the rotating shaft 1705, a vertical rod 1707 is fixedly connected to the top of the rotating block 1706, a limit sleeve 1708 is fixedly connected to the top of the vertical rod 1707, one end of the rotating rod 1702 is embedded and arranged in the limit sleeve 1708, the rotating rod 1702 is rotatably connected with the limit sleeve 1708, the rotating rod 1702 is limited and fixed, the position of the rotating rod 1702 is ensured not to shake during the processing, the fastening bolt 1710 penetrates through the fixed seat 1704, the fastening bolt 1710 is in threaded connection with the rotating shaft 1705, the rotating shaft 1705 is fixed, 1702 instability caused by shaking of the rotating shaft 1705 in the use process is avoided, the bottom of the mounting frame 13 is fixedly provided with the winding motor 1711 at the position below the winding roller 1703, the output shaft of the winding motor 1711 is connected with the conveying belt 1712, the conveying belt 1712 is in transmission connection with the rotating shaft 1702, the top of the mounting frame 13 is provided with a movable groove 1713 at the position on one side of the rotating shaft 1702, the inside of the movable groove 1713 is fixedly provided with the extrusion spring 1714, one end of the extrusion spring 1714 is fixedly connected with the movable block 1715, the movable block 1715 is in sliding connection with the movable groove 1713, the middle part of the movable block 1715 is movably provided with the compression roller 1716, the winding roller 1703 and the compression roller 1716 are positioned at the same horizontal height, the wound film is compressed by matching use of the winding, the film is prevented from loosening.

The working principle and the using process of the invention are as follows:

when the device works, after a certain amount of raw materials are put into the drying shell 1801 from the feeding hopper 1819, the feeding valve 1820 is closed, the stirring motor 1803 is started, the stirring block 1805 continuously stirs the raw materials, the raw materials are continuously dried by hot air of the hot air inlet pipe 1816 in the stirring process, after the raw materials are dried for a certain period of time, the electric blanking door 1806 is opened to discharge the raw materials (the stirring motor is kept rotating), and the first batch of raw materials fall onto the gate 1814; then, the feeding valve 1820 is opened again, the electric blanking door 1806 is closed, a second batch of raw materials is thrown in, stirring and hot air drying are continuously performed, meanwhile, the suction fan 1809 is started, the suction fan 1809 sucks the medium-temperature air subjected to heat exchange in the drying shell 1801 into the activated carbon box 1810 for drying, the first batch of raw materials sprayed onto the gate 1814 through the branch spray pipes 1812 are reheated again through the electric heater 1807, heating and drying are continuously performed on the first batch of raw materials, and finally, low-temperature exhaust gas is discharged through the exhaust gas exhaust pipe 1817. When the raw material on the gate 1814 is accumulated to a certain amount, the gate 1814 is opened to discharge the raw material into the collecting barrel, and the raw material is manually fed into the storage hopper 7 of the film blowing device. When the moisture content of the air detected by the moisture sensor is too high, the alarm 1818 sends an alarm to prompt a worker to replace the activated carbon.

After raw materials are injected into the storage hopper 7, the limiting block 805 is rotated, the support for the connecting rod 803 is released, the connecting rod 803 is rotated, the rotating shaft 801 rotates along with the rotating shaft, the baffle plate 802 is inclined downwards, the raw materials in the storage hopper 7 are injected into the melting tank body 4 through the material injection pipe 6, the connecting rod 803 is rotated upwards, the limiting block 805 is rotated again, the connecting rod 803 is tightly attached to the limiting block 805, the limiting block 805 plays a supporting role for the connecting rod 803, the baffle plate 802 is enabled to be parallel in the material injection pipe 6 and tightly attached to the rubber pad 806 to maintain sealing, it is ensured that no waste gas is discharged into the atmosphere through the material injection pipe 6 in the raw material melting process, the melting tank body 4 melts the raw materials, the waste gas generated in the raw material melting process is discharged into the dust removal tank body 808 by the axial flow fan, the dust filtration plate 809 filters the waste gas, and dust and particles in the waste gas, the activated carbon adsorption plate 810 can absorb peculiar smell harmful gas in the exhaust gas, then the exhaust gas is conveyed to the inside of the first adsorption tank body 812 through the first connecting pipe 811, the first adsorption tank body 812 can absorb water-soluble gas in the exhaust gas, the remaining gas is conveyed to the inside of the second adsorption tank body 814 through the second connecting pipe 813, and the harmful gas in the exhaust gas is absorbed by lime water in the inside of the second adsorption tank body 814, so that the pollution to the atmosphere caused by the harmful gas discharged into the air is avoided;

the raw material melted in the melting tank body 4 is conveyed to the interior of the film blowing die head 2 through the extrusion pump 3, then the raw material is blown into a film shape through the air blower 5, according to the diameter of the film, the electric push rod 904 is adjusted to push the push block 905 to slide in the through groove 903, so that the gap between the tops of the first frame 902 and the second frame 906 is adjusted, the adjusting sleeve 914 is rotated to adjust the angle of the guide roller 909, simultaneously, the rotating motor 912 is started to drive the driving wheel 911 and the belt 910 to rotate, so that the belt wheel 908 rotates along with the driving wheel, the guide roller 909 rotates and plays a role of upwards pulling the film, the film is enabled to move more stably, the film is prevented from being accumulated above the film blowing die head 2 to influence the normal film blowing process, the film passes through the gap between the first frame 902 and the second frame 906, and covers the surface of the pulling roller, the traction motor 11 is started to drive the traction roller 10 to rotate, so that the film is pulled forwards, the surface of the first guide roller 12 is covered with the film, and the film is conveyed downwards to the middle of the mounting frame 13;

the electric telescopic rod 1408 is started, the connecting plate 1409 and the static electricity removing cylinder 1410 are pushed upwards, the distance between the static electricity removing cylinder 1410 and the cooling cylinder 1406 is adjusted, the film passes through the gap between the cooling cylinder 1406 and the static electricity removing cylinder 1410, the water pump 1402 is started, cooling water in the water storage tank 1401 is conveyed to the inside of the movable rod 1404 through the water inlet pipe 1403, the cooling water permeates into the cooling cylinder 1406 through the water filtering holes 1405, the cooling cylinder 1406 and the static electricity removing cylinder 1410 have the effect of leveling the film in the advancing process of the film, wrinkles of the film in the transportation process are avoided, the cooling cylinder 1406 has a cooling effect on the film, the surface temperature of the film is prevented from being too high due to excessive friction in the conveying process of the film, the grounding block 1412 is simultaneously connected with the static electricity removing cylinder 1410 and the ground, and the static electricity removing cylinder 1410 performs static electricity removing treatment;

the film covers the surface of the second guide roller 15 and is wound on the surface of the winding roller 1703, the pressing roller 1716 is tightly attached to the film on the surface of the winding roller 1703 to fix the film, normal winding caused by the fact that the film is loosened is avoided, the number of the films on the surface of the winding roller 1703 is increased, the pressing roller 1716 is pressed backwards, the pressing spring 1714 is compressed, the movable block 1715 and the pressing roller 1716 are compressed backwards, and the pressing roller 1716 is enabled to be attached to the film all the time,

after the film is completely rolled, pressing the movable plate 1603, compressing the return spring 1604, clamping and fixing two sides of the film by using the fixed clamping plate 1602 and the clamping block 1605, pushing the connecting rod 1610 and the cutting tool 1611 forwards by using the hydraulic telescopic rod 1609, enabling the cutting tool 1611 to move towards the cutting groove 1607 until the cutting tool 1611 is contacted with the film, embedding the cutting tool 1611 into the cutting groove 1607, cutting the film, enabling the sliding block 1612 to slide in the sliding groove 1608, ensuring that the relative position between the cutting tool 1611 and the cutting groove 1607 cannot be changed, and keeping the cut opening of the film neat, and clamping and fixing the film by using the fixed clamping plate 1602 and the clamping block 1605, so that the surface of the film cannot fall off from the second guide roller 15, and avoiding the subsequent film traction;

twist fastening bolt 1710, loosen the fixed of countershaft 1705, utilize handle 1709 stop collar 1708 that overturns downwards, turning block 1706 and pivot 1705 rotate, loosen the fixed of dwang 1702, take off wind-up roll 1703, cup joint new wind-up roll 1703 in the middle part of dwang 1702, the stop collar 1708 that overturns upwards, make the both ends of dwang 1702 all imbed the inside of stop collar 1708, guarantee dwang 1702 at rolling in-process remain stable, tighten fastening bolt 1710, fixed action has been played to countershaft 1705, avoid rolling in-process pivot 1705 to rotate and lead to dwang 1702 to rock.

To summarize: the electric heater and the activated carbon box in the reheating cylinder are arranged, so that medium-temperature air which is dried and heated in the drying shell can be reheated and dried, the medium-temperature air is used for drying materials on the flashboard door, the total energy utilization rate of the hot air is improved, the structural arrangement is compact, the occupied space is small, two drying modes of stirring heating drying and static heating drying are provided, and the drying efficiency is high;

through the matching use of the dust filter plate and the activated carbon adsorption plate, the waste gas generated by melting plastics can be conveniently filtered, the dust and the substances with peculiar smell contained in the waste gas can be removed, the pollution to the atmosphere caused by directly discharging the waste gas into the air can be avoided, meanwhile, the first adsorption tank body and the second adsorption tank body are matched to absorb harmful gases dissolved in water and lime water in the waste gas, so that the harmful gases are prevented from being directly discharged into the atmosphere, the harmful gas is prevented from polluting the atmosphere or damaging the body of a worker, and through the matching use of the material baffle plate and the rubber pad, the material injection pipe is ensured to be sealed in the raw material melting process, the waste gas is prevented from being discharged into the air from the material injection pipe, the discharge of harmful gas is reduced, the raw materials are prevented from being conveyed downwards all the time in the raw material melting process, and the normal film blowing process is prevented from being influenced because the raw materials in the melting tank body are not melted completely;

the device is convenient to change the distance between the guide rollers by adjusting the electric push rod, is suitable for films with different sizes, can adjust the angle of the guide rollers by matching the support columns and the adjusting sleeves, is suitable for films with different diameters, can rotate by matching the belt wheels and the belt, plays a role in dragging the films by utilizing the friction force between the guide rollers and the films, ensures that the films can move more stably and cannot be accumulated above the film blowing die head, can gradually extrude the blown films and is convenient for subsequent conveying;

the cooling cylinder is matched with the static removing cylinder, so that the film is rolled and leveled, wrinkles generated in the film transportation process are avoided, meanwhile, the grounding block is matched for use, the static removing effect is realized on the film, the film surface is prevented from being provided with static electricity to influence the subsequent rolling, water is conveyed to the inside of the movable rod through the water pump, the water permeates into the cooling cylinder through the water filtering holes, the surface of the film is cooled by the cooling cylinder, the phenomenon that the surface temperature of the film is too high due to excessive friction in the conveying process is avoided, and the cooling water in the water storage tank and the cooling cylinder can be recycled through the matching of the water inlet pipe and the water outlet pipe;

through the use of the hydraulic telescopic rod, the cutting tool can be conveniently pushed to advance to the cutting groove along the sliding groove, so that the film can be automatically cut off without manual cutting, the working efficiency is improved, the cutting tool can be ensured to advance more stably through the matched use of the sliding groove and the sliding block, the irregular cutting opening is avoided, meanwhile, the film can be conveniently clamped and fixed through the matched use of the fixed clamping plate and the clamping block, and the film is prevented from falling off in the cutting process to influence the subsequent winding and winding;

the film rolling device has the advantages that the film rolling device is used in cooperation with the winding roller and the compression roller, the effect of compressing the film is achieved, the phenomenon that the film is not rolled neatly due to looseness of the film is avoided, the compression roller can advance along with the thickness of the film rolled on the surface of the winding roller through the use of the extrusion spring, the compression roller is enabled to be always closely attached to the surface of the film, meanwhile, the compression roller is used in cooperation with the fastening bolt through the limiting sleeve, the rotating rod is limited and fixed, and the fact that the position of the rotating rod cannot shake in the machining process is guaranteed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a plastics blown film system with reheat function which characterized in that: comprises a raw material drying device and a film blowing device, wherein the plastic raw material dried by the raw material drying device is manually fed into a storage hopper (7) of the film blowing device; the raw material drying device comprises a drying shell (1801), a reheating cylinder (1802) is fixedly connected to the bottom wall of the drying shell (1801), a stirring motor (1803) is fixedly connected to the upper end of the reheating cylinder (1802), an output shaft of the stirring motor (1803) is fixedly connected to a stirring block (1805) through a folding rod (1804), an electric blanking door (1806) is arranged on the bottom wall of the drying shell (1801), an electric heater (1807) is fixedly connected to the reheating cylinder (1802), the upper end of the electric heater (1807) is communicated with an outlet of a suction fan (1809) through a heater air inlet pipe (1808), an inlet of the suction fan (1809) is communicated with an outlet of an activated carbon box (1810), a plurality of honeycomb activated carbon layers are arranged in the activated carbon box (1810), an inlet air pipe (1811) of the activated carbon box (1810) is opened on the surface of the reheating cylinder (1812), an outlet pipe of the electric heater (1807) is communicated with a plurality of branch spray pipes (1812), and the blanking shell (1813) is arranged below, a gate plate door (1814) is arranged at the bottom of the blanking shell (1813), and a material collecting barrel (1815) with an opening at the upper end is arranged below the gate plate door (1814); the side wall of the drying shell (1801) is communicated with a hot air inlet pipe (1816), the side wall of the blanking shell (1813) is communicated with an exhaust air exhaust pipe (1817), a moisture sensor is arranged in the heater air inlet pipe (1808), and the moisture sensor is electrically connected with an alarm (1818) on the side face.

2. A plastic film blowing system with reheating function as claimed in claim 1, wherein: the upper end of the drying shell (1801) is communicated with a feeding hopper (1819), a feeding valve (1820) is arranged in the feeding hopper (1819), and access doors are arranged on the drying shell (1801) and the reheating cylinder (1802); the side surface of the electric blanking door (1806) is fixedly connected with a driving shaft (1822) driven by a blanking motor (1821), and the driving shaft (1822) drives the electric blanking door (1806) to turn downwards by taking the driving shaft (1822) as a central shaft during blanking.

3. A plastic film blowing system with reheating function as claimed in claim 1, wherein: the film blowing device comprises a rack (1), a film blowing die head (2) is fixedly mounted in the middle of the bottom end of the rack (1), an extrusion pump (3) is fixedly connected to one end of the top of the film blowing die head (2), a material melting tank body (4) is fixedly mounted to one end of the extrusion pump (3), an air blower (5) is fixedly connected to one end, far away from the extrusion pump (3), of the bottom end of the film blowing die head (2), a material injection pipe (6) is fixedly connected to one end of the top of the material melting tank body (4), a storage hopper (7) is fixedly mounted to the top of the material injection pipe (6), a waste gas removing mechanism (8) is mounted to the top of the material melting tank body (4), and a guide mechanism (9) is fixedly mounted to the;

frame (1) top middle part fixed mounting has carry over pinch rolls (10), the one end fixedly connected with traction motor (11) of carry over pinch rolls (10), the one end fixed mounting at frame (1) top has first guide roll (12), is located one side position department fixed mounting of frame (1) bottom has mounting bracket (13), the one end fixedly connected with that the frame (1) is close to at mounting bracket (13) top destatics mechanism (14), one side position department fixed mounting that mounting bracket (13) top is located destatics mechanism (14) has second guide roll (15), the middle part fixed mounting on mounting bracket (13) top has shutdown mechanism (16), the one end fixed mounting that second guide roll (15) were kept away from at mounting bracket (13) top has winding mechanism (17).

4. A plastic film blowing system with reheating function as claimed in claim 3, wherein: the waste gas removing mechanism (8) comprises a rotating shaft (801), a material baffle plate (802), a connecting rod (803), a fixing block (804), a limiting block (805), a rubber pad (806), an axial flow fan (807), a dust removing box body (808), a dust filtering plate (809), an activated carbon adsorption plate (810), a first connecting pipe (811), a first adsorption box body (812), a second connecting pipe (813) and a second adsorption box body (814);

the material injection device is characterized in that a rotating shaft (801) is movably mounted at one end of the middle part of the material injection pipe (6), a material baffle plate (802) is fixedly connected to the middle part of the rotating shaft (801), a connecting rod (803) is fixedly connected to one end of the rotating shaft (801), a fixing block (804) is fixedly mounted at one end of the middle part of the material injection pipe (6) far away from the rotating shaft (801), a limiting block (805) is movably connected to one end of the fixing block (804) through the rotating shaft, a rubber pad (806) is fixedly bonded to the position, above the material baffle plate (802), in the interior of the material injection pipe (6), of the top of the material melting tank body (4), far away from the material injection pipe (6), an axial flow fan (807), a dust removal tank body (808) is fixedly connected to one end of the axial flow fan (808), a dust filtration plate (809) is fixedly mounted at the top, the one end fixedly connected with of dust removal box (808) bottom first connecting pipe (811), the one end fixed mounting of first connecting pipe (811) has first absorption box (812), the top fixedly connected with second connecting pipe (813) of first absorption box (812), the one end fixed mounting of second connecting pipe (813) has the second to adsorb box (814).

5. A plastic film blowing system with reheating function as claimed in claim 3, wherein: the baffle plate (802) is positioned in the material injection pipe (6), the baffle plate (802) is tightly attached to the front of the rubber pad (806), one end of the connecting rod (803) is attached to the limiting block (805), the first adsorption tank body (812) is filled with water, the second adsorption tank body (814) is filled with lime water, and the first connecting pipe (811) and the second connecting pipe (813) respectively extend to the water and the lime water;

the guide mechanism (9) comprises a supporting plate (901), a first frame (902), a through groove (903), an adjusting electric push rod (904), a pushing block (905), a second frame (906), a mounting groove (907), a belt wheel (908), a guide roller (909), a belt (910), a driving wheel (911), a rotating motor (912), a supporting column (913) and an adjusting sleeve (914);

supporting plates (901) are symmetrically and fixedly installed at two ends of the top of the rack (1), adjacent ends of the supporting plates (901) are movably connected with first frames (902) through movable shafts, through grooves (903) are formed in the top of the supporting plates (901), adjusting electric push rods (904) are fixedly installed inside the through grooves (903)3, one ends of the adjusting electric push rods (904) are fixedly connected with pushing blocks (905), and one ends of the pushing blocks (905) are movably connected with second frames (906) through the movable shafts;

one first frame (902) and one second frame (906) are inside all seted up mounting groove (907), the inside equidistance fixed mounting of mounting groove (907) has band pulley (908), the one end fixedly connected with deflector roll (909) of band pulley (908), the bottom fixed mounting of mounting groove (907) has action wheel (911), belt (910) have been cup jointed on the surface of band pulley (908) and action wheel (911), the one end fixedly connected with rotating electrical machines (912) of action wheel (911), the bottom of first frame (902) and second frame (906) all symmetry fixed mounting has support column (913), the surface of support column (913) has cup jointed adjusting sleeve (914).

6. A plastic film blowing system with reheating function as claimed in claim 5, wherein: swing joint between deflector roll (909) and first frame (902) and second frame (906), the transmission is connected between band pulley (908), action wheel (911) and belt (910), be 35 degrees angles between first frame (902) and second frame (906), leave the clearance between the top of first frame (902) and second frame (906), through threaded connection between adjusting sleeve (914) and support column (913).

7. A plastic film blowing system with reheating function as claimed in claim 6, wherein: the static electricity removing mechanism (14) comprises a water storage tank (1401), a water pump (1402), a water inlet pipe (1403), a movable rod (1404), a water filtering hole (1405), a cooling cylinder (1406), a water outlet pipe (1407), an electric telescopic rod (1408), a connecting plate (1409), a static electricity removing cylinder (1410), a connecting wire (1411) and a grounding block (1412);

one end fixed mounting that mounting bracket (13) bottom is close to frame (1) has storage water tank (1401), the inside fixed mounting of storage water tank (1401) has water pump (1402), the one end fixedly connected with inlet tube (1403) of water pump (1402), the middle part of mounting bracket (13) is located storage water tank (1401) top position department and installs movable rod (1404), water filtering hole (1405) have been seted up to the middle part equidistance of movable rod (1404), cooling cylinder (1406) have been cup jointed in the middle part of movable rod (1404), the one end fixedly connected with outlet pipe (1407) of movable rod (1404), the both ends fixed mounting at mounting bracket (13) top has electric telescopic handle (1408), the top fixedly connected with connecting plate (1409) of electric telescopic handle (1408), the middle part movable mounting of connecting plate (1409) has static section of thick bamboo (1410) of removing, the one end fixedly connected with connecting wire (1411) of static section of thick, one end of the connecting wire (1411) is fixedly provided with a grounding block (1412);

one end of each of the water inlet pipe (1403) and the water outlet pipe (1407) extends to the inside of the movable rod (1404), the other end of each of the water inlet pipe (1403) and the water outlet pipe (1407) extends to the inside of the water storage tank (1401), the static electricity removing cylinder (1410) is located right above the cooling cylinder (1406), a gap is reserved between the static electricity removing cylinder (1410) and the cooling cylinder (1406), the surface of the static electricity removing cylinder (1410) is 304 stainless steel, and the grounding block (1412) is fixedly connected with the ground.

8. A plastic film blowing system with reheating function as claimed in claim 3, wherein: the cutting mechanism (16) comprises an installation block (1601), a fixed clamping plate (1602), a movable plate (1603), a return spring (1604), a clamping block (1605), a fixed plate (1606), a cutting groove (1607), a sliding groove (1608), a hydraulic telescopic rod (1609), a connecting rod (1610), a cutting tool (1611) and a sliding block (1612);

the middle part fixed mounting on mounting bracket (13) top has installation piece (1601), the one end fixed mounting that installation piece (1601) top is close to second guide roll (15) has fixed splint (1602), the one end of fixed splint (1602) is connected with fly leaf (1603) through the loose axle, the middle part fixed connection of fly leaf (1603) has reset spring (1604), the one end fixed mounting of fly leaf (1603) has clamp splice (1605), the one end fixed mounting that installation piece (1601) bottom is close to second guide roll (15) has fixed plate (1606), the middle part of fixed plate (1606) has been seted up and has been cut off groove (1607), spout (1608) have been seted up to the both sides symmetry of installation piece (1601), the one end symmetry fixed mounting that fixed plate (1606) was kept away from to installation piece (1601) bottom has hydraulic telescoping rod (1609), the one end fixedly connected with connecting rod (1609) of hydraulic telescoping rod (1609), one end of the connecting rod (1610) is fixedly connected with a cutting tool (1611), and two ends of the connecting rod (1610) are symmetrically and fixedly connected with sliding blocks (1612).

One end and fixed splint (1602) fixed connection of reset spring (1604), the inside bonding of cutting groove (1607) has the cushion, cutting groove (1607) and cutting tool (1611) are located same level, slider (1612) embedding is installed in the inside of spout (1608), agree with sliding connection through slider (1612) and spout (1608) between connecting rod (1610) and installation piece (1601).

9. A plastic film blowing system with reheating function as claimed in claim 8, wherein: the winding mechanism (17) comprises a support frame (1701), a rotating rod (1702), a winding roller (1703), a fixed seat (1704), a rotating shaft (1705), a rotating block (1706), a vertical rod (1707), a limiting sleeve (1708), a handle (1709), a fastening bolt (1710), a winding motor (1711), a conveying belt (1712), a movable groove (1713), an extrusion spring (1714), a movable block (1715) and a pressing roller (1716);

one end of the top of the mounting frame (13) far away from the second guide roller (15) is fixedly provided with a support frame (1701), the top of the support frame (1701) is movably provided with a rotating rod (1702), the middle of the rotating rod (1702) is sleeved with a winding roller (1703), the top of the mounting frame (13) is fixedly provided with a fixing seat (1704) at one side position of the support frame (1701), the middle of the fixing seat (1704) is movably provided with a rotating shaft (1705), the middle of the rotating shaft (1705) is fixedly provided with a rotating block (1706), the top of the rotating block (1706) is fixedly connected with a vertical rod (1707), the top of the vertical rod (1707) is fixedly connected with a limiting sleeve (1708), one end of the limiting sleeve (1708) is fixedly connected with a handle (1709), one end of the fixing seat (1704) is fixedly provided with a fastening bolt (1710), and the bottom of the mounting frame (13) is fixedly provided with a winding, the output shaft of rolling motor (1711) has conveyer (1712), movable groove (1713) have been seted up to mounting bracket (13) top position in dwang (1702) one side position department, the inside fixed mounting in movable groove (1713) has extrusion spring (1714), the one end fixedly connected with movable block (1715) of extrusion spring (1714), the middle part movable mounting of movable block (1715) has compressing roller (1716).

10. A plastic film blowing system with reheating function as claimed in claim 9, wherein: the one end embedding of dwang (1702) is installed in the inside of stop collar (1708), rotate between dwang (1702) and stop collar (1708) and be connected, fastening bolt (1710) run through in fixing base (1704), through threaded connection between fastening bolt (1710) and pivot (1705), the transmission is connected between conveyer (1712) and dwang (1702), wind-up roll (1703) are located same level with pinch roller (1716), sliding connection between movable block (1715) and activity groove (1713).