CN217891942U - Multilayer co-extrusion cast film equipment - Google Patents

Abstract

The utility model discloses a multilayer is crowded cast film equipment altogether, including feedway, extrusion device, forming device, thickness measuring device, corona unit, the crystallization device that sets gradually and cut the coiling mechanism, forming device includes the mounting bracket the right side of mounting bracket is equipped with vertical slide rail set spare, it is relative to be equipped with on the vertical slide rail set spare the crane that the mounting bracket reciprocated, install the cooling forming roller on the crane be equipped with on the mounting bracket and be used for driving the crane is relative be equipped with the first lifting unit that the mounting bracket reciprocated be equipped with the second cooling roller on the mounting bracket arbitrary one side be equipped with inside the cooling forming roller and the coolant liquid conveyor of second cooling roller intercommunication, be equipped with negative pressure subassembly and positive pressure wind knife tackle spare about the top of cooling forming roller respectively, the negative pressure subassembly with positive pressure wind knife tackle spare is located the left and right sides of mould discharge gate respectively.

Description

Multilayer co-extrusion cast film equipment

Technical Field

The utility model relates to a multilayer is crowded cast film equipment altogether.

Background

The plastic film forming process comprises a calendaring method, a blow molding method, a stretching method, a casting method and the like, and in recent years, with the guidance and support of policy upgrading, the requirement of the packaging industry on packaging materials is continuously upgraded, and the requirement of a plurality of novel composite materials is continuously increased;

when extrusion moulding is carried out to current multilayer curtain coating membrane, need carry out cooling shaping to the coating material through cooling shaping roller, nevertheless at this in-process, need the coating material laminating to cool shaping roller, otherwise can have the problem that the roughness has great deviation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a multilayer co-extrusion cast film device;

the multilayer co-extrusion cast film equipment designed according to the purpose comprises a feeding device, an extrusion device, a forming device, a thickness measuring device, a corona device, a recrystallization device and a slitting and winding device which are sequentially arranged;

the forming device comprises a mounting frame, a longitudinal slide rail assembly is arranged on the right side of the mounting frame, a lifting frame capable of moving up and down relative to the mounting frame is arranged on the longitudinal slide rail assembly, a cooling forming roller is arranged on the lifting frame, a first lifting assembly used for driving the lifting frame to move up and down relative to the mounting frame is arranged on the mounting frame, a second cooling roller is arranged on the mounting frame, a cooling liquid conveying device communicated with the inside of the cooling forming roller and the second cooling roller is arranged on any one of the front side and the rear side of the mounting frame, a negative pressure assembly and a positive pressure air knife assembly are respectively arranged on the left side and the right side above the cooling forming roller, and the negative pressure assembly and the positive pressure air knife assembly are respectively arranged on the left side and the right side of a discharge port of a mold;

a portal frame is arranged above the cooling forming roller, a mold is arranged above the cooling forming roller, the mold is fixedly arranged on the portal frame, and the extruding device is connected with a feeding port of the mold;

the discharge port of the feeding device is connected with the feed port of the extrusion device;

preferably, the negative pressure assembly comprises a negative pressure fan cover arranged on the left side of the discharge port of the die, a centrifugal fan, a portal frame and a plurality of air pipes, wherein the input end of the centrifugal fan is connected with the air pipes, the air pipes are connected with the negative pressure fan cover, and the centrifugal fan is arranged on the portal frame;

preferably, the positive pressure air knife assembly comprises fixed seats arranged at left and right intervals, the fixed seats are arranged on the lifting frame in a left-right sliding mode, left-right transverse moving adjusting mechanisms connected with the lifting frame are arranged on the fixed seats, moving seats capable of moving up and down relative to the fixed seats are arranged on the fixed seats in a sliding mode, second lifting assemblies used for driving the moving seats to move up and down are arranged on the fixed seats, the positive pressure air knife assembly further comprises air outlet pipes, the left ends and the right ends of the air outlet pipes are rotatably arranged on the moving seats, at least one ends of the air outlet pipes are provided with openings, one ends of the air outlet pipes are connected with an external fan, air outlets are uniformly distributed on one sides, facing a discharge port of the mold, of the air outlet pipes, and adjusting assemblies used for adjusting angles of the air outlet pipes are arranged on the moving seats;

the left side and the right side of the positive pressure air knife assembly are also provided with discharge assemblies used for discharging the cooling forming roller to enable the cooling forming roller to generate electrostatic adsorption;

preferably, swing arms are further arranged on the left side and the right side of the cooling forming roller, the upper ends of the swing arms are rotatably arranged on the lifting frame, the rotating axes of the swing arms and the axes of the cooling forming roller are coaxially arranged, sliding blocks are arranged on the lower portions of the two swing arms in a vertical sliding mode, a pressing roller is arranged between the two sliding blocks, a first air cylinder used for driving the sliding blocks to move up and down is arranged on each swing arm, the upper ends of the swing arms are sleeved at the left end and the right end of the cooling forming roller, and a swing rotating mechanism used for driving the swing arms to rotate relative to the cooling forming roller is arranged on the lifting frame;

preferably, the slitting and winding device comprises a rack, and a tension transmission device I, a slitting mechanism, a traction device and a tension transmission device II are sequentially arranged on the right side of the rack;

the machine frame is also provided with a transverse rail, a moving frame capable of sliding relative to the transverse rail is movably inserted on the transverse rail, a moving mechanism capable of driving the moving frame to move left and right relative to the transverse rail is arranged on the moving frame, and the moving frame is provided with a first guide roller;

a turnover mechanism which can rotate relative to the rack is arranged on the left side of the rack, and at least one winding shaft is arranged on the turnover mechanism;

the movable frame is also provided with a gap compression roller matched with the winding shaft;

detection electric eyes are respectively arranged between the winding shaft and the gap pressing roller from top to bottom;

preferably, a guide roller II, a guide roller III and a guide roller IV are sequentially arranged on the right side of the rack;

the first tension transmission device is arranged between the second guide roller and the third guide roller;

the traction device is arranged between the third guide roller and the fourth guide roller;

the tension conducting device II is arranged between the guide roller IV and the guide roller I;

preferably, the tension transmission device I and the tension transmission device II are composed of two tension sensors and a transmission roller arranged on the tension sensors;

preferably, the splitting mechanism is arranged on a rack on the three right sides of the guide roller, the splitting mechanism is composed of a plurality of pneumatic splitting cutters, and blades of the pneumatic splitting cutters are in contact with the cast film;

preferably, an edge material recovery device is further arranged between the guide roller IV and the tension conduction device II;

preferably, the device also comprises a bottom plate, wherein a swing mechanism is arranged on the bottom plate, the rack is arranged on the swing mechanism, and the swing mechanism can drive the rack to swing back and forth;

the swing mechanism comprises a plurality of pulleys arranged on the left side and the right side of the rack, a transverse guide rail is arranged on a bottom plate below the pulleys, the pulleys are arranged in the transverse guide rail, a swing motor is arranged on the bottom plate, a motor shaft of the swing motor is provided with a turntable, the turntable is eccentrically provided with a connecting rod, the inner side of the rack is provided with a hinge seat, and the connecting rod is hinged with the hinge seat;

compared with the prior art, the utility model, the forming device includes the mounting bracket, be equipped with the longitudinal slide rail subassembly on the right side of mounting bracket, be equipped with on the longitudinal slide rail subassembly can be relative the crane that the mounting bracket reciprocated, install the cooling shaping roller on the crane, be equipped with on the mounting bracket and be used for driving the crane is relative the first lifting unit that the mounting bracket reciprocated, be equipped with the second chill roll on the mounting bracket, arbitrary one side is equipped with the inside of cooling shaping roller and the coolant liquid conveyor that the second chill roll communicates around the mounting bracket, be equipped with negative pressure subassembly and positive pressure air knife subassembly about the top of cooling shaping roller respectively, negative pressure subassembly and positive pressure air knife subassembly are located the left and right sides of mould discharge gate respectively; a portal frame is arranged above the cooling forming roller, a mold is arranged above the cooling forming roller, the mold is fixedly arranged on the portal frame, and the extruding device is connected with a feeding port of the mold; and the discharge port of the feeding device is connected with the feeding port of the extruding device. The utility model discloses a set up negative pressure subassembly and positive pressure air knife subassembly, the membrane material is exported the cooling forming roll at the mould and is cooled off the shaping, in the fashioned, the negative pressure subassembly is responsible for convulsions, and positive pressure air knife subassembly is responsible for blowing, makes the smooth laminating of membrane material cool off the shaping at the cooling forming roll to can effectual assurance membrane material roughness.

Drawings

Fig. 1 is one of the schematic plan views of the present invention;

FIG. 2 is a schematic plan view of the molding device of the present invention;

fig. 3 is a schematic perspective view of the molding device of the present invention;

fig. 4 is a second schematic perspective view of the molding device of the present invention;

fig. 5 is a third schematic view of the three-dimensional structure of the forming device of the present invention;

FIG. 6 is a schematic cross-sectional view of a molding device according to the present invention;

FIG. 7 is a second schematic sectional view of the forming device of the present invention;

fig. 8 is one of the schematic three-dimensional structures of the medium-pressure air knife assembly of the present invention;

fig. 9 is a second schematic perspective view of the middle positive pressure air knife assembly of the present invention;

FIG. 10 is an enlarged schematic view of the structure at A of FIG. 8 according to the present invention;

fig. 11 is a schematic plan view of the slitting and winding device of the present invention;

fig. 12 is a schematic cross-sectional view of the slitting and winding device according to the present invention;

fig. 13 is a schematic view of a three-dimensional structure of the middle slitting and winding device of the present invention;

fig. 14 is a second schematic perspective view of the slitting and winding device according to the present invention;

FIG. 15 is a schematic perspective view of a recrystallization apparatus according to the present invention;

fig. 16 is a schematic perspective view of the extruding apparatus of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples;

referring to fig. 1 to 16, a multilayer co-extrusion casting film apparatus includes a feeding device 10, an extruding device 20, a forming device 30, a thickness measuring device 40, a corona device 50, a re-crystallizing device 60 and a slitting and winding device 70, which are sequentially arranged;

the molding device 30 comprises a mounting frame 1014, a longitudinal slide rail assembly 1016 is arranged on the right side of the mounting frame 1014, a lifting frame 1010 capable of moving up and down relative to the mounting frame 1014 is arranged on the longitudinal slide rail assembly 1016, a cooling molding roller 1017 is arranged on the lifting frame 1010, a first lifting assembly 1011 for driving the lifting frame 1010 to move up and down relative to the mounting frame 1014 is arranged on the mounting frame 1014, a second cooling roller 1015 is arranged on the mounting frame 1014, a cooling liquid conveying device 1019 communicated with the inside of the cooling molding roller 1017 and the second cooling roller 1015 is arranged on any one of the front side and the rear side of the mounting frame 1014, a negative pressure assembly 1002 and a positive pressure air knife assembly 1004 are respectively arranged on the left side and the right side above the cooling molding roller 1017, and the negative pressure assembly 1002 and the positive pressure air knife assembly 1004 are respectively arranged on the left side and the right side of a discharge port of the mold 1001;

a portal frame 1040 is arranged above the cooling forming roller 1017, a mould 1001 is arranged above the cooling forming roller 1017, the mould 1001 is fixedly arranged on the portal frame 1040, and the extruding device 20 is connected with a feeding port of the mould 1001;

the discharge port of the feeding device 10 is connected with the feed port of the extrusion device 20;

referring to fig. 16, the feeding device 10 is a plurality of buckets 100, and the extruding device 20 includes a plurality of extruders 200 and a distributor 210;

the discharge end of the charging basket 100 is connected to the feed end of the extruder 200, and the discharge end of the extruder 200 is connected to the distributor 210. The discharge end of the dispenser 210 is connected to the feed end of the mold 1001;

the extruder 200, the distributor 210 and the charging basket 100 all adopt products in the prior art;

in the actual production, different raw materials are respectively plasticized and melted by a plurality of extrusion screws through internal precise runners of the screws and linearly at different temperatures, the materials are fed into a flat shoulder die head for transverse extrusion after being quantitatively and proportionally mixed by a distributor, and a film material falls on a cooling forming roller for cooling;

the utility model discloses in, thickness measuring device 40 all adopts prior art or the product sold in the market with corona unit 50. The thickness measuring device 40 can measure the thickness of the film material in real time;

the corona device 50 can carry out electric spark machining on the upper surface and the lower surface of the film material, and the polarity of the surface of the material is changed after electric sparks are carried out on the front surface and the back surface, so that the operation of the next procedure is facilitated;

the recrystallization device 60 is composed of a base 610 and a plurality of heating rollers 620 which are arranged at left and right intervals;

the heating roller 620 is hollow inside and has an electric heating module;

after corona, the surface temperature of the material rises and the distribution of the internal molecular structure is uneven, at the moment, the material is subjected to recrystallization, tempering processes with different temperatures and a multi-roller online heat treatment mechanism are carried out, each roller is independently controlled by a mold temperature controller, and the film surface shrinkage rate is effectively controlled by proper process temperature so that the interior of the material becomes stable;

the utility model has the working process;

1. the feeding device adds corresponding raw materials into the extrusion device;

2. the extruder conveys the raw materials in a spiral way and melts and conveys the raw materials into the die;

3. transversely extruding the film material at a die head of the die;

4. the film material is cooled and formed by a cooling forming roller and then enters a thickness measuring device 40 through a second cooling roller for thickness measurement;

5. after the thickness measurement is finished, performing electric spark machining on the front side and the back side of the film through a corona device 50;

6. after electric spark machining, the film is heated and machined through recrystallization loading 60, and the multiple heating rollers can realize machining at different temperatures;

7. after the processing is finished, the film is cut and wound again through the cutting and winding device 70;

in the present invention, the first lifting assembly 1011 adopts a conventional reciprocating mechanism that is lifted by an electric motor, such as an electric cylinder;

the utility model discloses in, the inside of cooling forming roll 1017 and second chill roll 1015 is the cavity setting. The cooling liquid supply device 1019 is also configured to supply a cooling liquid to the inside of the cooling forming roll 1017 and the second cooling roll 1015 to cool the film discharged from the mold. The apparatus and the cooling rolls are known from the prior art, from which the person skilled in the art is aware;

in actual production, the film material is output to a cooling forming roller for cooling forming in a mold, and the negative pressure component is responsible for air draft while forming, and the positive pressure air knife component is responsible for air blowing, so that the film material is smoothly attached to the cooling forming roller for cooling forming, and the flatness of the film material can be effectively ensured;

referring to fig. 5 and 6, the negative pressure assembly 1002 includes a negative pressure fan housing 1021 arranged at the left side of a discharge port of the mold 1001, and further includes a centrifugal fan 1022, an input end of the centrifugal fan 1022 is connected with a plurality of air ducts 1023, the air ducts 1023 are connected with the negative pressure fan housing 1021, and further includes a gantry 1040, and the centrifugal fan 1022 is arranged on the gantry 1040. An air deflector 1050 is arranged on the wall surface of one side of the negative pressure fan cover 1021 close to the mold 1001, the air deflector 1050 extends to the lower end surface of the mold 1001, and an air suction space is formed between the lower end surface of the air deflector 1050 and the cooling forming roll 1017;

that is, when the mold is used, the centrifugal fan 1022 draws air to drive air below the mold to enter the air duct 1023 from the negative pressure air cover 1021 and then to be discharged from the centrifugal fan. Namely, the film material output from the die is better attached to the cooling forming roller. Thereby effectively ensuring the flatness of the film;

referring to fig. 7 to 9, the positive pressure air knife assembly 1004 includes a fixed seat 1031 arranged at left and right intervals, the fixed seat 1031 is arranged on the lifting frame 1010 in a left-right sliding manner, a left-right traversing adjusting mechanism 1006 for connecting with the lifting frame 1010 is arranged on the fixed seat 1031, a moving seat 1032 capable of moving up and down relative to the fixed seat 1031 is arranged on the fixed seat 1031 in a sliding manner, a second lifting component 1007 for driving the moving seat 1032 to move up and down is arranged on the fixed seat 1031, and an air outlet pipe 1033 is further included, left and right ends of the air outlet pipe 1033 are rotatably arranged on the moving seat 1032, at least one end of the air outlet pipe 1033 is provided with an opening, one end of the opening of the air outlet pipe 1033 is connected with an external fan, air outlets 1034 are uniformly distributed on one side of the air outlet pipe 1033 facing a discharge port 1001 of the mold, and an adjusting component 1005 for adjusting an angle of the air outlet pipe 1033 is arranged on the moving seat 1032;

the second lifting assembly 1007 adopts a conventional reciprocating mechanism which is electrically lifted, such as an electric cylinder;

the left-right traverse adjusting mechanism 1006 is a conventional reciprocating mechanism that is electrically lifted, such as an electric cylinder. Or a screw rod reciprocating mechanism adjusted by hand cranking. The fixed seat 1031 is driven to move horizontally relative to the lifting frame 1010 to adjust the left position and the right position;

that is, air is blown by a fan, airflow enters the air outlet pipe 1033, and then is blown to the surface of the film from the air outlet 1034, so that the film is attached to the cooling forming roller 1017, and the flatness of the film is ensured;

referring to fig. 1 and 6, the left and right sides of the positive pressure air knife assembly 1004 are further provided with discharging assemblies 1003 for discharging the cooling forming roller 1017 to enable the cooling forming roller 1017 to generate electrostatic adsorption. Discharging to enable the material to be quickly attached to the forming roller under the condition that the attaching roller is not arranged, so that the thickness of the materials on two sides and the thickness of the middle material are uniform;

referring to fig. 4, swing arms 1020 are further disposed on left and right sides of the cooling forming roll 1017, upper ends of the swing arms 1020 are rotatably disposed on the lifting frame 1010, a rotation axis of the swing arms 1020 and an axis of the cooling forming roll 1017 are coaxially disposed, sliders 1009 are slidably disposed on lower portions of the two swing arms 1020 in a vertical direction, a pressing roll 1008 is mounted between the two sliders 1009, a first cylinder 1018 for driving the sliders 1009 to move vertically is disposed on the swing arms 1020, upper ends of the swing arms 1020 are sleeved on left and right ends of the cooling forming roll 1017, and swing rotating mechanisms for driving the swing arms 1020 to rotate relative to the cooling forming roll 1017 are disposed on the lifting frame 1010;

the pressing roller 1008 is matched with the cooling forming roller 1017 to form a pressing roller group, fine impurity molecules on the surface of the material are adsorbed and removed through the grooves on the surface of the cleaning roller, and the material is ejected to remove bubbles and prevent wrinkling;

the swing rotating mechanism is preferably driven by a motor and a gear. Namely, a driven gear coaxial with the rotation axis is installed on the swing arm, a first motor is installed on the lifting frame 1010, and a driving gear meshed with the driven gear is installed on a motor shaft of the first motor. Therefore, when the first motor rotates, the driven gear can be driven to rotate by the driving gear;

further, the cover is equipped with the bearing on the both ends about cooling forming roll 1017, the mounting hole has been seted up to the upper end of swing arm 1020, and the mounting hole endotheca is equipped with rolling bearing, and rolling bearing's inner circle cover is established on cooling forming roll 1017's outer wall, promptly, swing arm 1020 can rotate cooling forming roll 1017 relatively. Of course, this is only one way of rotational setting, and other rotational setting ways in the prior art may also be adopted;

referring to fig. 1, the front and rear lower end surfaces of the mounting frame 1014 are respectively provided with rail wheels 1013, the front and rear lower ends of the mounting frame 1014 are respectively provided with a traverse rail 1012, and the rail wheels 1013 are slidably arranged on the traverse rail 1012. The rail wheels 1013 are driven by a motor, that is, the mounting frame 1014 can slide transversely relative to the traverse rail by the rail wheels under the driving of the motor;

referring to fig. 9, the adjusting assembly 1005 includes a worm gear 1035 disposed at one end of the air outlet pipe 1033, a worm gear 1036 engaged with the worm gear 1035 is rotatably disposed on the moving seat 1032 below the worm gear 1035, and a rotating handle 1037 is disposed on the worm gear 1036. Namely, the worm is driven to rotate by rotating the handle, the turbine is driven to rotate so as to drive the air outlet pipe 1033 to rotate, and the air outlet angle of the air outlet pipe is adjusted;

the left end and the right end of the air outlet pipe 1033 are sleeved with bearings, and the bearings are fixedly arranged on the movable seat 1032 through bearing seats;

the slitting and winding device 70 comprises a frame 2001, and a tension conducting device I2002, a slitting mechanism 2003, a traction device 2004 and a tension conducting device II 2006 are sequentially arranged on the right side of the frame 2001;

the machine frame 2001 is further provided with a transverse rail 2015, a moving frame 2009 capable of sliding relative to the transverse rail 2015 is movably inserted into the transverse rail 2015, the moving frame 2009 is provided with a moving mechanism 2008 capable of driving the moving frame 2009 to move left and right relative to the transverse rail 2015, and the moving frame 2009 is provided with a first guide roller 2016;

a turnover mechanism 2012 capable of rotating relative to the rack 2001 is arranged on the left side of the rack 2001, and at least one winding shaft 2011 is arranged on the turnover mechanism 2012;

a gap pressing roller 2010 matched with the winding shaft 2011 is further arranged on the moving frame 2009;

detection electric eyes are respectively arranged between the winding shaft 2011 and the gap pressing roller 2010 at the upper part and the lower part;

the utility model can drive the movable frame to move left and right through the moving mechanism, thereby driving the gap compression roller to move, and adjusting the distance between the gap compression roller and the winding shaft under the action of the detection electric eye, thus ensuring that the gap compression roller and the winding shaft form a certain distance, and realizing that part of air is uniformly involved in the winding process as the gap allowance caused by reserved shrinkage;

in the present invention, the moving mechanism 2008 adopts a rack and pinion mode to perform transmission, that is, a rack is fixedly installed on the moving frame 2009, and a pinion is installed on a rotating component, which can be a motor, that is, a pinion is installed on the motor shaft of the motor, and the pinion is meshed with the rack, so that in the rotating process of the motor, the pinion can be driven to rotate, thereby driving the rack to perform linear movement, and the motor adopts a forward and reverse rotation mode, thereby in the forward and reverse rotation process, the moving frame realizes reciprocating movement;

in the utility model, the turnover mechanism 2012 comprises a rotating disc 2013 rotatably arranged on the frame 2001, the number of the rotating disc 2013 is two, the two ends of the winding shaft 2011 are rotatably arranged on the rotating disc 2013, the frame 2001 is provided with a first rotating component for driving the rotating disc 2013 to rotate, and the rotating disc 2013 is provided with a second rotating component for driving the winding shaft 2011 to rotate;

referring to fig. 1, a second guide roller 2000, a third guide roller 2017 and a fourth guide roller 2018 are sequentially arranged on the right side of the frame 2001;

the tension conducting device I2002 is arranged between the guide roller II 2000 and the guide roller III 2017;

the traction device 2004 is arranged between the third guide roller 2017 and the fourth guide roller 2018;

the second tension conducting device 2006 is arranged between the fourth guide roller 2018 and the first guide roller 2016;

the tension transmission device I2002 and the tension transmission device II 2006 are respectively composed of two tension sensors and transmission rollers arranged on the tension sensors;

the splitting mechanism 2003 is arranged on the rack 2001 on the right side of the third guide roller 2017, the splitting mechanism 2003 consists of a plurality of pneumatic splitting cutters, and the blades of the pneumatic splitting cutters are in contact with the casting film;

referring to fig. 1, an edge trim recycling device 2005 is further arranged between the fourth guide roller 2018 and the second tension conduction device 2006;

referring to fig. 1, a material cutting device 2007 for cutting the casting film is further disposed on the frame 2001 below the moving frame 2009, and the material cutting device 2007 is composed of a manipulator 2107 and a cutting knife 2207 disposed on the manipulator 2107. The cutter adopts the existing pneumatic cutting knife. The pneumatic slitting knife can slit the film;

the swinging mechanism 2014 is arranged on the bottom plate 2020, the rack 2001 is arranged on the swinging mechanism 2014, and the swinging mechanism 2014 can drive the rack 2001 to swing back and forth. Designing a swing type rolling deflection thick and thin position to form uniform coil materials; set up two sections rolling tension and ensure tensile stability of rolling

Referring to fig. 1 to 2, the swing mechanism 2014 includes a plurality of pulleys 2022 installed at the left and right sides of the frame 2001, a transverse guide 2021 is provided on a bottom plate 2020 below the pulleys 2022, the pulleys 2022 are disposed in the transverse guide 2021, a swing motor 2023 is provided on the bottom plate 2020, a turntable 2024 is provided on a motor shaft of the swing motor 2023, a connecting rod 2025 is eccentrically provided on the turntable 2024, a hinge base 2026 is provided at the inner side of the frame 2001, and the connecting rod 2025 is hinged to the hinge base 2026;

the connecting rod 2025 is rotatably arranged on the turntable 2024 through a rotating shaft, so that the swinging motor drives the turntable 2024 to rotate, the connecting rod 2025 can be driven to eccentrically rotate, and the driving rack moves forwards and backwards relative to the transverse guide rail 2021;

referring to fig. 3, the scrap recycling device 2005 includes a main recycling pipe 2030, a plurality of feeding pipes 2031 extending upward are provided on the main recycling pipe 2030, one end of the main recycling pipe 2030 is open, the other end is closed, a discharging pipe 2032 is provided at one open end of the main recycling pipe 2030, and the discharging pipe 2032 is connected to a blower 2033. The fan 2033 drives air to circulate, and the air circulation can drive waste materials to enter the main recovery pipe 2030 from the material pipe and output from the material discharge pipe 2032;

in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention, and the terms "first" and "second" are for descriptive purposes only and are not to indicate or imply relative importance or to imply the number of technical features being referred to;

the foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a multilayer is crowded cast film equipment altogether which characterized in that: the device comprises a feeding device (10), an extruding device (20), a forming device (30), a thickness measuring device (40), a corona device (50), a recrystallization device (60) and a slitting and winding device (70) which are arranged in sequence;

the forming device (30) comprises a mounting frame (1014), a longitudinal sliding rail assembly (1016) is arranged on the right side of the mounting frame (1014), a lifting frame (1010) capable of moving up and down relative to the mounting frame (1014) is arranged on the longitudinal sliding rail assembly (1016), a cooling forming roller (1017) is mounted on the lifting frame (1010), a first lifting assembly (1011) used for driving the lifting frame (1010) to move up and down relative to the mounting frame (1014) is arranged on the mounting frame (1014), a second cooling roller (1015) is arranged on the mounting frame (1014), a cooling liquid conveying device (1019) communicated with the interior of the cooling forming roller (1017) and the second cooling roller (1015) is arranged on any one of the front side and the rear side of the mounting frame (1014), a negative pressure assembly (1002) and a positive pressure air knife assembly (1004) are respectively arranged on the left side and the right side above the cooling forming roller (1017), and the negative pressure assembly (1002) and the positive pressure air knife assembly (1004) are respectively located on the left side and the right side of a discharge hole of the mold (1001);

a portal frame (1040) is arranged above the cooling forming roller (1017), a mould (1001) is arranged above the cooling forming roller (1017), the mould (1001) is fixedly arranged on the portal frame (1040), and the extruding device (20) is connected with a feeding port of the mould (1001);

and a discharge port of the feeding device (10) is connected with a feed port of the extruding device (20).

2. A multilayer co-extrusion cast film apparatus according to claim 1, wherein: negative pressure subassembly (1002) are including setting up negative pressure fan housing (1021) on mould (1001) discharge gate left side, still including centrifugal fan (1022), centrifugal fan's (1022) input is connected with many tuber pipes (1023), tuber pipe (1023) with negative pressure fan housing (1021) are connected, still including portal (1040), centrifugal fan (1022) set up on portal (1040).

3. A multilayer coextrusion cast film apparatus according to claim 1, characterized in that: the positive pressure air knife assembly (1004) comprises a fixed seat (1031) arranged at left and right intervals, the fixed seat (1031) is arranged on the lifting frame (1010) in a left-right sliding mode, a left-right traversing adjusting mechanism (1006) used for being connected with the lifting frame (1010) is arranged on the fixed seat (1031), a moving seat (1032) capable of moving up and down relative to the fixed seat (1031) is arranged on the fixed seat (1031) in a sliding mode, a second lifting assembly (1007) used for driving the moving seat (1032) to move up and down is arranged on the fixed seat (1031), an air outlet pipe (1033) is further included, the left end and the right end of the air outlet pipe (1033) are rotatably arranged on the moving seat (1032), at least one opening of the air outlet pipe (1033) is arranged, one opening end of the air outlet pipe (1033) is connected with an external fan, air outlets (1034) are uniformly distributed on one side, facing a discharge port of the mold (1001), and an adjusting assembly (1005) used for adjusting the angle of the air outlet pipe (1033) is arranged on the moving seat (1031032);

and the left side and the right side of the positive pressure air knife component (1004) are also provided with discharge components (1003) which are used for discharging the cooling forming roller (1017) to enable the cooling forming roller (1017) to generate electrostatic adsorption.

4. A multilayer co-extrusion cast film apparatus according to claim 1, wherein: swing arms (1020) are further arranged on the left side and the right side of the cooling forming roller (1017), the upper ends of the swing arms (1020) are rotatably arranged on the lifting frame (1010), the rotating axis of the swing arms (1020) and the axis of the cooling forming roller (1017) are coaxially arranged, sliding blocks (1009) are arranged on the lower portions of the two swing arms (1020) in a vertical sliding mode, a pressing roller (1008) is installed between the two sliding blocks (1009), a first air cylinder (1018) used for driving the sliding blocks (1009) to move up and down is arranged on the swing arms (1020), the upper end of each swing arm (1020) is sleeved at the left end and the right end of the cooling forming roller (1017), and a swing rotating mechanism used for driving the swing arms (1020) to rotate relative to the cooling forming roller (1017) is arranged on the lifting frame (1010).

5. A multilayer co-extrusion cast film apparatus according to claim 1, wherein: the slitting and winding device (70) comprises a rack (2001), and a first tension conduction device (2002), a slitting mechanism (2003), a traction device (2004) and a second tension conduction device (2006) are sequentially arranged on the right side of the rack (2001);

the machine frame (2001) is further provided with a transverse track (2015), a moving frame (2009) capable of sliding relative to the transverse track (2015) is movably inserted into the transverse track (2015), the moving frame (2009) is provided with a moving mechanism (2008) capable of driving the moving frame (2009) to move left and right relative to the transverse track (2015), and the moving frame (2009) is provided with a first guide roller (2016);

a turnover mechanism (2012) capable of rotating relative to the rack (2001) is arranged on the left side of the rack (2001), and at least one winding shaft (2011) is arranged on the turnover mechanism (2012);

a gap pressing roller (2010) matched with the winding shaft (2011) is further arranged on the moving frame (2009);

detection electric eyes are respectively arranged between the winding shaft (2011) and the gap pressing roller (2010) from top to bottom.

6. A multilayer coextrusion cast film apparatus according to claim 5, characterized in that: a second guide roller (2000), a third guide roller (2017) and a fourth guide roller (2018) are sequentially arranged on the right side of the rack (2001);

the tension conducting device I (2002) is arranged between the guide roller II (2000) and the guide roller III (2017);

the traction device (2004) is disposed between the third guide roller (2017) and the fourth guide roller (2018);

the second tension conducting device (2006) is arranged between the fourth guide roller (2018) and the first guide roller (2016).

7. A multilayer co-extrusion cast film apparatus according to claim 6, wherein: the tension transmission device I (2002) and the tension transmission device II (2006) are composed of two tension sensors and transmission rollers installed on the tension sensors.

8. A multilayer co-extrusion cast film apparatus according to claim 6, wherein: the splitting mechanism (2003) is arranged on the rack (2001) on the right side of the third guide roller (2017), the splitting mechanism (2003) is composed of a plurality of pneumatic splitting cutters, and the blade edges of the pneumatic splitting cutters are in contact with the casting film.

9. A multilayer co-extrusion cast film apparatus according to claim 6, wherein: and an edge material recovery device (2005) is also arranged between the fourth guide roller (2018) and the second tension conduction device (2006).

10. A multilayer coextrusion cast film apparatus according to claim 5 or 6, characterized in that: the swinging device is characterized by further comprising a bottom plate (2020), wherein a swinging mechanism (2014) is arranged on the bottom plate (2020), the rack (2001) is arranged on the swinging mechanism (2014), and the swinging mechanism (2014) can drive the rack (2001) to swing back and forth;

the swing mechanism (2014) is including installing a plurality of pulleys (2022) of frame (2001) left and right sides be equipped with transverse guide (2021) on bottom plate (2020) of pulley (2022) below, pulley (2022) set up in transverse guide (2021), be equipped with swing motor (2023) on bottom plate (2020), be equipped with carousel (2024) on the motor shaft of swing motor (2023), the eccentric connecting rod (2025) that is provided with on carousel (2024), frame (2001) inboard is equipped with articulated seat (2026), connecting rod (2025) with articulated seat (2026) are articulated.

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