CN114474771B - Multilayer co-extrusion film blowing system for excellent film forming - Google Patents
Multilayer co-extrusion film blowing system for excellent film forming Download PDFInfo
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- CN114474771B CN114474771B CN202111676858.6A CN202111676858A CN114474771B CN 114474771 B CN114474771 B CN 114474771B CN 202111676858 A CN202111676858 A CN 202111676858A CN 114474771 B CN114474771 B CN 114474771B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
- B29C2035/1666—Cooling using gas dried air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a multilayer coextrusion film blowing system for excellent film forming, which comprises an automatic weighing and proportioning device, an extruder device, an inner and outer film bubble cooling device, a rotary deviation correcting device and a central winding device, wherein the feeding end of the extruder device is provided with the automatic weighing and proportioning device, the discharging end of the extruder device is provided with a film bubble forming die, the film bubble forming die is provided with the inner and outer film bubble cooling device, the inner and outer film bubble cooling device cools the inner side and the outer side of a film bubble at the same time, the rotary deviation correcting device and the central winding device are arranged in the conveying direction of the film, the rotary deviation correcting device rotationally pulls and rectifies the width of the film, and the central winding device winds the film after pulling and rectifying, optimizes and improves the film forming process and improves the cooling uniformity of the film bubble.
Description
Technical Field
The invention belongs to the field of film production, and particularly relates to a multilayer co-extrusion film blowing system for excellent film forming.
Background
At present, in the plastic packaging and printing process, if more functions of the packaging material are to be realized, the required functions can be realized only by compounding a plurality of materials together, the multilayer co-extrusion film blowing system generally comprises ingredients, extrusion, traction, winding and the like, at present, the raw materials are cooled through an air cooling mechanism after forming the film bubble through a die, and the cooling effect of the process on the film bubble directly influences the forming quality of the film.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a multilayer coextrusion film blowing system for excellent film forming, which optimizes and improves the film forming process and improves the cooling uniformity of film bubbles.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the invention is as follows:
a multilayer coextrusion blown film system for excellent film forming is characterized in that: including automatic weighing dosing unit, extruder device, the inside and outside cooling device of bubble, rotation deviation correcting device and center coiling mechanism, the feed end of extruder device is provided with automatic weighing dosing unit, the discharge end of extruder device is provided with the bubble forming die, be provided with the inside and outside cooling device of bubble on the bubble forming die, the inside and outside cooling device of bubble cools off the inside and outside both sides of bubble simultaneously, is provided with rotation deviation correcting device and center coiling mechanism in the direction of transfer of film, rotation deviation correcting device carries out rotatory traction and deviation correcting to the width of film, center coiling mechanism carries out the rolling to the film after traction deviation correcting.
Further, the inner cooling device and the outer cooling device of the membrane bubble comprise heat exchange air pipes penetrating through the membrane bubble forming die body, the air inlet ends of the heat exchange air pipes are located at the inner ring of the membrane bubble and extend along the length direction of the membrane bubble, the air outlet ends of the heat exchange air pipes are located at the outer side of the membrane bubble and extend towards the bottom end of the membrane bubble forming die body, an inner cooling component is arranged on the inner side of the membrane bubble forming die body corresponding to the membrane bubble, the inner cooling component radiates heat towards the inner ring of the membrane bubble in an air-cooling mode, an outer cooling component is arranged on the outer side of the membrane bubble forming die body and faces the outer side face of the membrane bubble in an air-cooling mode, and the outer cooling component and the inner cooling component are correspondingly arranged in the radial direction of the membrane bubble;
the film bubble forming die body is provided with a mounting channel in a penetrating mode along the length direction of the film bubble, the heat exchange air pipes penetrate through the mounting channel at intervals, an internal cooling air inlet channel is formed between the heat exchange air pipes and the mounting channel, an internal cooling assembly is arranged corresponding to an air outlet of the internal cooling air inlet channel, and air flow of the internal cooling air inlet channel is diffused on the inner ring wall of the film bubble through the periphery of the internal cooling assembly.
Further, the inner cooling assembly comprises an inner cooling flow guide top plate positioned at the air outlet end of the inner cooling air inlet channel, the inner cooling flow guide top plate is of an inverted cover body structure, the inner cooling flow guide top plate is sleeved on the outer side of the heat exchange air pipe, the outer edge of the inner cooling flow guide top plate and the membrane bubble form an air cooling channel, the inner cooling flow guide top plate is arranged on the upper surface of the membrane bubble forming die body at intervals, an annular inner cooling air outlet is formed by the inner cooling flow guide top plate and the upper surface of the die, an air flow channel of the inner cooling air outlet and the length direction of the membrane bubble form an included angle, the inner cooling air outlet is obliquely arranged towards the moving direction of the membrane bubble, and the air flow at the air outlet end of the inner cooling air inlet channel is circumferentially diffused through the inner cooling air outlet;
the air conditioner is characterized in that a plurality of groups of internal cooling diversion intermediate plates are arranged between the internal cooling diversion top plate and the air outlet of the internal cooling air inlet channel along the length direction interval of the heat exchange air pipe, the structures of the diversion intermediate plates are the same, the diversion intermediate plates are sequentially stacked in the axial direction, the internal cooling diversion intermediate plates and the internal cooling diversion top plate form diversion air cavities, a plurality of middle diversion holes communicated with adjacent diversion air cavities are formed in the plate bodies of the internal cooling diversion intermediate plates in a penetrating manner, and the diversion air cavities are mutually communicated through the middle diversion holes.
Further, the external cooling assembly comprises an external cooling guide ring sleeved on the outer ring of the membrane bubble, the external cooling guide ring is of a shell structure comprising an inner cavity, an external cooling air outlet is formed in one side of the external cooling guide ring corresponding to the membrane bubble, the external cooling air outlet is of a linear annular groove structure, and the external cooling air outlet is obliquely arranged towards the extending direction of the membrane bubble;
an outer cooling adjusting ring is arranged in the inner ring of the outer cooling guide ring in an adjustable mode along the axial direction, and the size of the air outlet is adjusted through the outer cooling adjusting ring.
Further, be provided with first outer cold reposition of redundant personnel ring in the outer cold air outlet, just first outer cold reposition of redundant personnel ring coaxial arrangement is in the inner circle side of outer cold adjusting ring, first outer cold reposition of redundant personnel ring is in the axial for outer cold adjusting ring displacement adjustment, outer cold adjusting ring is corresponding to the first separating ring of outer cold air outlet on the one end coaxial arrangement of L type cross-section, a plurality of first through orifice have been seted up on the radial arm of first separating ring, the axial arm interval setting of first separating ring is in the inboard of first outer cold reposition of redundant personnel ring, outer cold air outlet separates into the first shunt outlet that corresponds to first outer cold reposition of redundant personnel ring and the second shunt that corresponds to first separating ring through first separating ring.
Further, the rotary deviation correcting device comprises a machine body, a support shaft with the bottom end arranged on the machine body, and a first traction roller, a second traction roller and a third traction roller which are respectively and sequentially arranged on the support shaft from bottom to top through mounting brackets, wherein a guide roller for introducing a film is transversely arranged on the machine body at intervals on the support shaft, the guide roller and the machine body are relatively fixedly arranged and used for flattening and guiding a film layer, a second traction roller is arranged at intervals above the guide roller, a first traction roller for tensioning the film is arranged between the guide roller and the second traction roller, a third traction roller is arranged at intervals above the first traction roller, a film between the first traction roller and the third traction roller is tensioned, the second traction roller is arranged far away from the support shaft, the first traction roller and the second traction roller are arranged close to the support shaft, and the first traction roller, the second traction roller and the third traction roller are respectively arranged in a horizontal plane rotation adjusting mode relative to the machine body by taking the support shaft as axes.
Further, the mounting bracket comprises a first mounting bracket for mounting the first traction roller, a second mounting bracket for mounting the second traction roller and a third mounting bracket for mounting the third traction roller, at least the first mounting bracket or the second mounting bracket or the third mounting bracket is a hollow bracket body structure comprising a bracket air cooling channel, the mounting bracket comprises an air inlet channel interface connected with an air source corresponding to the bracket air cooling channel, a plurality of bracket air cooling micropores are distributed and arranged on the mounting bracket and communicated with the bracket air cooling channel, the bracket air cooling micropores are distributed and arranged in the width direction of the film layer, the bracket air cooling micropores face the film layer in a flattened state,
the second installation frame comprises a plurality of installation seats for installing the second traction roller and a plurality of cantilever beams, one ends of the installation seats are rotatably arranged on the supporting shaft, the other ends of the cantilever beams are connected with the installation seats, and the bracket air cooling channel is at least arranged on the cantilever beams.
Further, the central winding device comprises a winding machine body, an adjusting guide shaft and a winding shaft, wherein the adjusting guide shaft and the winding shaft are respectively and rotatably arranged on the winding machine body, the adjusting guide shaft and the winding shaft are sequentially arranged in the film conveying direction, the adjusting guide shaft is used for tensioning a film material belt, the winding shaft is used for winding the film material belt, the diameters of the adjusting guide shaft and the winding shaft are adjustable, at least the diameters of the winding shaft are gradually adjusted from large to small in the winding process, the winding shaft is used for changing the contact tensioning acting force of the winding shaft and the inner ring of the film roll through diameter adjustment, and the adjusting guide shaft and the winding shaft are of an air expansion shaft structure;
the winding shaft and the adjusting guide shaft have the same structure, the shaft bodies of the winding shaft and the adjusting guide shaft are provided with pressure sensors, and the detection surfaces of the pressure sensors are propped against the inner side wall of the film roll; the pressure sensor detects the tension of the film on the axial surface of the rewinding shaft and the adjusting guide shaft;
the adjusting guide shaft and the winding shaft comprise a plurality of expansion keys, the expansion keys are arranged in a telescopic adjusting mode in the radial direction of the winding shaft, one of the support surfaces of the expansion keys is concavely provided with an installation groove, and the pressure sensor is arranged in the installation groove.
Further, the automatic discharging device comprises an automatic discharging mechanism, the automatic discharging mechanism comprises a transverse displacement mechanism, a lifting mechanism and a rotary flat-laying mechanism, the transverse displacement mechanism is perpendicular to a winding axis and arranged on a winding machine body, the lifting mechanism is arranged at the movable end of the transverse displacement mechanism, two ends of the winding shaft are erected on the lifting mechanism, the lifting mechanism faces or is far away from a rubber roller through the transverse displacement mechanism, the discharging end of the transverse displacement mechanism is provided with the rotary flat-laying mechanism, the winding shaft is lifted to the air or placed on the ground through the rotary flat-laying mechanism, and the winding shaft is placed on or lifted off the lifting mechanism through the rotary flat-laying mechanism;
the rotation mechanism of keeping flat includes telescopic machanism and swing arm, two sets of the swing arm corresponds the both ends setting of rolling axle respectively, just the one end rotation of swing arm sets up on the rolling machine organism, the other end of swing arm contains the draw-in groove that is used for holding the receipt spool, it is semicircular opening structure to accept the draw-in groove, just it is provided with the axostylus axostyle dog to accept the draw-in groove one side that deviates from in the rolling axle, axostylus axostyle dog spacing and bearing rolling axle, telescopic machanism's one end articulates and sets up on the rolling machine organism, and the other end interval articulates on the arm body of swing arm in the rotation end of swing arm.
Further, the lifting mechanism comprises a sliding seat, a guide plate, movable rods and guide pins, the sliding seat is arranged on the winding machine body in a sliding manner along the displacement direction of the transverse displacement mechanism, the sliding seat is vertically provided with two movable rods in a penetrating manner at intervals, the two movable rods extend out to the top of the sliding seat to form a supporting groove body for the winding shaft to rotate, the bottom ends of the two movable rods are relatively and fixedly connected, the guide pins are arranged on the winding machine body, the guide plates adjacent to the transverse linear displacement mechanism are provided with the guide plates, lifting sliding grooves are formed in the guide plates, the guide pins are arranged in the lifting sliding grooves in a sliding manner through the transverse linear displacement mechanism, each lifting sliding groove comprises a transverse groove section and an oblique groove section which is obliquely arranged at a high-low position, the high end side of each oblique groove section is communicated with the transverse groove section, and the low end side of each oblique groove section is arranged towards the swing arm; when the movable rod moves to the inclined groove section, the movable rod moves downwards, and the two ends of the rolling shaft lose limit and roll on the swing arm.
The beneficial effects are that: the inner side and the outer side of the formed film bubble are simultaneously cooled by the inner cooling device and the outer cooling device of the film bubble, heat in the film bubble is timely discharged, the phenomenon of inner pulling of the film bubble is prevented, the temperature of the inner side and the outer side of the film bubble is guaranteed to be similar, the consistency and the synchronism of the shrinkage of the die bodies on the inner side and the outer side of the film bubble are improved, and the quality of a film is improved.
Drawings
FIG. 1 is a front view of a system of the overall construction of the present invention;
FIG. 2 is a system side view of the overall structure of the present invention;
FIG. 3 is a schematic diagram of the three-dimensional structure of the cooling device inside and outside the membrane bubble of the invention;
FIG. 4 is a perspective cross-sectional view of the bubble internal and external cooling device of the present invention;
FIG. 5 is an enlarged schematic view of a part A of the cooling device inside and outside the membrane bubble according to the present invention;
FIG. 6 is an enlarged schematic view of a part B of the cooling device inside and outside the membrane bubble according to the present invention;
FIG. 7 is an enlarged schematic view of a part C of the cooling device inside and outside the membrane bubble according to the present invention;
FIG. 8 is a front view of the rotary deviation correcting device of the present invention in the original position;
FIG. 9 is a top view of the rotary deviation correcting device of the present invention in an origin position;
FIG. 10 is a perspective view of the rotary deviation correcting device of the present invention in an origin position;
FIG. 11 is a top view of the rotary deviation correcting device of the present invention rotated 90;
FIG. 12 is a front view of the rotary deviation correcting device of the present invention rotated 90;
FIG. 13 is a perspective view of the rotary deviation correcting device of the present invention in a 90 degree rotated position;
FIG. 14 is a top view of the rotary deviation correcting device of the present invention rotated 180 degrees;
FIG. 15 is a front view of the rotary deviation correcting device of the present invention rotated 180 degrees;
FIG. 16 is a perspective view of the rotary deviation correcting device of the present invention in a 180 degree rotated position;
FIG. 17 is a schematic perspective view of a central winding apparatus of the present invention;
fig. 18 is an enlarged schematic view of a part D of the center winding device of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in the attached drawings 1 and 2, a multilayer coextrusion blown film system for excellent film forming comprises an automatic weighing and proportioning device 1, an extruder device 2, an inner cooling device, an outer cooling device, a rotary deviation correcting device 4 and a central winding device 5, wherein the feeding end of the extruder device 2 is provided with the automatic weighing and proportioning device 1, the discharging end of the extruder device 2 is provided with a film bubble forming die, the film bubble forming die is provided with the inner cooling device, the outer cooling device and the outer cooling device of the film bubble 3 simultaneously cool the inner side and the outer side of the film bubble in an air cooling manner, the rotary deviation correcting device 4 and the central winding device 5 are arranged in the conveying direction of the film, the rotary deviation correcting device 4 rotationally pulls and corrects the width of the film, and the central winding device 5 winds the film after the traction deviation correcting. The inner side and the outer side of the formed film bubble are cooled simultaneously through the inner cooling device and the outer cooling device of the film bubble, heat in the film bubble is timely discharged, the phenomenon that the film bubble is pulled out is prevented, the temperature of the inner side and the outer side of the film bubble is guaranteed to be similar, the uniformity and the synchronism of the shrinkage of the die bodies on the inner side and the outer side of the film bubble are improved, and the quality of a film is improved.
As shown in fig. 3 and fig. 7, the cooling device inside and outside the membrane bubble comprises a membrane bubble forming die body 3.1 and a heat exchange air pipe 3.4 penetrating through the membrane bubble forming die body 3.1 along the length direction of the membrane bubble 3.10, the upper end and the lower end of the heat exchange air pipe 3.4 are respectively an air inlet end and an air outlet end, the heat exchange air pipe 3.4 is arranged at the inner ring of the membrane bubble, the air inlet end of the heat exchange air pipe 3.4 is positioned at the inner ring of the membrane bubble and extends along the length direction of the membrane bubble, the air outlet end of the heat exchange air pipe 3.4 is positioned at the outer side of the membrane bubble and extends towards the bottom end of the membrane bubble forming die body 3.1, and the heat exchange air pipe 3.4 is used for discharging heat inside the membrane bubble. The inner side of the film bubble forming die body 3.1 corresponding to the film bubble 3.10 is provided with an inner cooling component 3.2, the inner cooling component 3.2 uniformly cools and dissipates heat towards the inner ring of the film bubble 3.10, the outer side of the film bubble forming die body 3.1 located in the film bubble 3.10 is provided with an outer cooling component 3.3, and the outer cooling component 3.3 uniformly cools and dissipates heat towards the outer side surface of the film bubble. The inner side and the outer side of the membrane bubble are uniformly cooled by the inner cooling component and the outer cooling component, so that the diameter of the membrane bubble is ensured to be uniform, and heat in the inner cavity of the membrane bubble can be discharged by air circulation of the inner cooling component and the heat exchange air pipe.
The film bubble forming die body 3.1 is communicated with and provided with a mounting channel 3.5 along the length direction of the film bubble, the heat exchange air pipes 3.4 are arranged in the mounting channel 3.5 in a penetrating way, an internal cooling air inlet channel 3.6 is formed between the heat exchange air pipes 3.4 and the mounting channel 3.5, the bottom end of the internal cooling air inlet channel 3.6 is an air inlet end and is used for communicating air inlet of fan equipment, the top end of the internal cooling air inlet channel 3.6 is an air outlet end and is used for supplying air to the inner side of the film bubble, the internal cooling assembly 3.2 is arranged corresponding to an air outlet of the internal cooling air inlet channel 3.6, and air flow of the internal cooling air inlet channel 3.6 is diffused on the inner ring wall of the film bubble through the periphery of the internal cooling assembly 3.2.
The inner cooling assembly 3.2 comprises an inner cooling guide top plate 3.20 positioned at the air outlet end of the inner cooling air inlet channel 3.6, the inner cooling guide top plate 3.20 is arranged at an interval between the inner cooling guide top plate 3.20 and the air inlet channel 3.6 and is used for forming an air outlet channel, the inner cooling guide top plate 3.20 is of an inverted cover body structure, the inner cooling guide top plate 3.20 is sleeved outside the heat exchange air pipe 3.4, the outer edge of the inner cooling guide top plate 3.20 and a film bubble form an air cooling channel, the inner cooling guide top plate 3.20 is arranged at the upper surface of the film bubble forming die body 3.1, the inner cooling guide top plate 3.20 and the upper surface of the die form an annular inner cooling air outlet 3.21, the air flow channel of the inner cooling air outlet 3.21 and the length direction of the film bubble 3.10 are arranged at an included angle, and the inner cooling air outlet is obliquely arranged towards the moving direction of the film bubble, so that the air cooling air flow can flow upwards along the film bubble direction, flows into the heat exchange air pipe through the top end of the heat exchange air pipe 3.4 and then flows outwards; the air flow at the air outlet end of the internal cooling air inlet channel is diffused to the circumferential direction through the internal cooling air outlet 3.21, so that air cooling and heat dissipation are carried out on the inner ring of the membrane bubble 3.10, and after heat exchange is carried out on the air flow entering the inner side of the membrane bubble 3.10 and the membrane bubble, the air flow enters the heat exchange air pipe 3.4 from the top end of the heat exchange air pipe 3.4, and then is discharged to the outside from the air outlet end of the heat exchange air pipe, so that air flow exchange can be completed inside the membrane bubble.
A plurality of groups of internal cooling guide intermediate plates 3.23 are arranged between the internal cooling guide top plates 3.20 and the air outlet of the internal cooling air inlet channel 3.6 along the length direction interval of the heat exchange air pipe, a plurality of guide intermediate plates are identical in structure, and a plurality of guide intermediate plates are sequentially stacked in the axial direction, a plurality of guide air cavities are formed among the internal cooling guide intermediate plates, between the internal cooling guide intermediate plates and between the internal cooling guide top plates, and a plurality of middle guide holes 3.22 communicated with adjacent guide air cavities are formed in the plate body of the internal cooling guide intermediate plates 3.23 in a penetrating manner, and a plurality of guide air cavities are mutually communicated through the middle guide holes 3.22. The number and arrangement positions of the inner cooling air outlets 3.21 in the axial direction can be increased through the inner cooling flow guide top plate 23 of the towing bar, so that air cooling and heat dissipation can be carried out on the film bubble more uniformly.
The outer cooling assembly 3.3 comprises an outer cooling guide ring 3.31 sleeved on the outer ring of the membrane bubble, the outer cooling guide ring 3.31 is of a shell structure comprising an inner cavity, at least one air inlet is formed in the outer cooling guide ring 3.31, an annular outer cooling air outlet 3.32 is formed in one side, corresponding to the membrane bubble, of the outer cooling guide ring 3.31 and used for carrying out air cooling and heat dissipation on the outer ring of the membrane bubble 3.10, the outer cooling air outlet is of a linear annular groove structure, and the outer cooling air outlet is obliquely arranged towards the extending direction of the membrane bubble.
The inner ring of the external cooling guide ring 3.31 is coaxially provided with a fixed ring 3.34, the fixed ring 3.34 comprises internal threads, the fixed ring 3.34 is axially provided with an external cooling adjusting ring 3.33 in an adjustable manner, the external cooling adjusting ring 3.33 is arranged on the inner side of the fixed ring, the external cooling adjusting ring 3.33 is in threaded adjustment with the fixed ring 3.34, the size of an air outlet is adjusted by the external cooling air outlet 3.32 through the external cooling adjusting ring 3.33, air cooling is ensured to be uniform in the inner side and the outer side of a membrane bubble through fine adjustment, and the diameter of the membrane bubble is ensured to be stable.
The wall body of the first separating ring 3.38 facing the second separating opening 3.42 can be provided with a plurality of secondary separating rings which are identical to the first separating ring 3.38 in structure and different in inner diameter, the plurality of secondary separating rings positioned on the inner side are sequentially arranged on the secondary separating rings on the outer side in a threaded mode, the second separating opening can be separated into a plurality of air outlets with smaller calibers through the plurality of secondary separating rings, and the size of the air outlets can be adjusted well, so that the local air volume can be adjusted.
As shown in fig. 7, the second split port 3.42 is provided with a second split ring 3.37, the second split ring 3.37 is disposed on a ring body mounting seat 3.40 of the external cooling guide ring 3.31 or on a wall body of the first split ring 3.38, in this embodiment, the second split ring is screwed on the ring body mounting seat 3.40, the second split ring 3.37 is an annular structure with an L-shaped section, and the second split ring 3.37 is axially adjusted, in this embodiment, the second split ring is adjusted by threads, and the structure is simpler and the adjustment is convenient. The radial arms of the second separating ring 3.37 are provided with a plurality of second through flow dividing holes 3.44, the axial arm spacing of the second separating ring 3.37 is arranged on the inner side of the first separating ring 3.38, and the second flow dividing holes 3.42 are separated into a third flow dividing opening corresponding to the first separating ring 3.37 and a fourth flow dividing opening 3.43 corresponding to the second separating ring 3.37 through the second separating ring 3.37. Through the shunt opening that a plurality of intervals set up carries out the forced air cooling heat dissipation to the membrane bubble different positions, can carry out the rapid cooling shaping with the membrane bubble that flows from the mould, can adjust the shunt opening through outer cold adjusting ring 3.33, first separating ring 3.37 and second separating ring 3.38 to cooling efficiency when different positions to the membrane bubble, and the forced air cooling of axial dispersion also makes the membrane bubble cool off more even.
As shown in fig. 8 to 16, the rotary deviation correcting device comprises a machine body 4.11, a supporting shaft 4.5 with the bottom end arranged on the machine body 4.11, and a first traction roller 4.1, a second traction roller 4.2 and a third traction roller 4.3 which are respectively and sequentially arranged on the supporting shaft 4.5 from bottom to top through mounting brackets, wherein a guide roller 4.4 for introducing a film is transversely arranged on the machine body at an interval of the supporting shaft 4.5, the guide roller and the machine body are oppositely and fixedly arranged and used for flattening and guiding a film layer, a second traction roller 4.2 is arranged at an interval of the upper part of the guide roller 4.4, a first traction roller 4.1 for tensioning the film 10 is arranged between the guide roller 4.4 and the second traction roller 4.2, a third traction roller 4.3 is arranged at an interval of the upper part of the traction roller 4.1, and a film between the first traction roller 4.1 and the third traction roller 4.3 is respectively arranged in a horizontal plane relative to the machine body by taking the supporting shaft as an axis. Through the rotation adjustment to the first traction roller 4.1, the second traction roller 4.2 and the third traction roller 4.3, the film stretches and pulls towards one side, and the thickness is corrected, so that the film can be uniform.
A rotary driving device is arranged on the machine body 4.11 and drives the first traction roller 4.1, the second traction roller 4.2 and the third traction roller 4.3 to rotate in the same direction but in different directions; the rotary driving device comprises a first driving mechanism, a second driving mechanism and a third driving mechanism which correspond to the first traction roller 4.1, the second traction roller 4.2 and the third traction roller 4.3 respectively.
The rotary driving device comprises a driving main shaft 4.12, wherein the driving main shaft 4.12 is parallel to and is arranged on a machine body at a distance from a supporting shaft 4.5, the first driving mechanism, the second driving mechanism and the third driving mechanism respectively comprise a first driving gear 4.15, a second driving gear 4.17 and a third driving gear 4.13 which are coaxial and are arranged on the driving main shaft 4.12 at a distance from each other, the rotary driving device also comprises a first driven gear 4.16, a second driven gear 4.18 and a second driven gear 4.14 which are respectively arranged on a mounting bracket of a first traction roller 4.1, a mounting bracket of a second traction roller 4.2 and a mounting bracket of a third traction roller 4.3, the first driving gear 4.15 is in meshed transmission with the first driven gear 4.16, the second driving gear 4.17 is in meshed transmission with the second driven gear 4.18, and the third driving gear 4.13 is in meshed transmission with the third driven gear.
The driving main shaft 4.12 is coaxially provided with a driving main gear 4.20, the machine body is provided with a rotary driving motor 4.21, the driving main shaft 4.12 is arranged in a driving way through the rotary driving motor 4.21, and a power mechanism is used for driving the first traction roller 4.1, the second traction roller 4.2 and the third traction roller 4.3 in a rotating way.
The installing support is including being used for installing the first 4.30a of mounting bracket of first 4.1 of traction roller, be used for installing the second 4.30b of mounting bracket of second 4.2, be used for installing the third 4.30c of mounting bracket of third 4.3 of traction roller, at least first 4.30a of mounting bracket or second 4.30b of mounting bracket or third 4.30c be the cavity support body structure that contains support forced air cooling passageway, contain air inlet gas circuit interface 4.8 corresponding to the forced air cooling passageway on the installing support, communicate on the installing support and offered a plurality of support forced air cooling micropore 4.9 in support forced air cooling passageway distribution. The support forced air cooling micropore (4.9) distributes and sets up in the width direction on film layer, support forced air cooling micropore (4.9) are towards the film layer forced air cooling under the flattening state, carry out forced air cooling heat dissipation to the film of tensioning on the roll body through support forced air cooling micropore 4.9 for film shaping is stable.
The traction roller II 4.2 is far away from the setting of back shaft 4.5, traction roller I, traction roller II are close to the back shaft setting, mounting bracket II 4.30b contains a plurality of mount pad 4.31 and one end that are used for installing traction roller II and rotates to set up on back shaft 4.5 and the other end is connected a plurality of cantilever beams 4.32 of mount pad 4.31, support forced air cooling passageway sets up on cantilever beam 4.32 at least, through the extension of cantilever beam 4.32, can carry out the forced air cooling of homogeneity to the film of great area.
The roller body of at least one of the first traction roller 4.1 or the third traction roller 4.3 comprises a roller body air cooling air passage along the length direction of the roller body, and the roller body of the first traction roller or the third traction roller is provided with roller body micropores 4.6 communicated with the roller body air cooling air passage in a penetrating way.
The second traction roller 4.2 is a flattening roller, the roller surface of the second traction roller 4.2 comprises two flattening grooves 4.7 which respectively extend towards two ends of the roller body in a reverse mode, and the flattening grooves 4.7 are of spiral groove structures, and when a film passes through the second traction roller 4.2, the film can be stretched and pulled towards two sides.
As shown in fig. 17 and fig. 18, the central winding device comprises a winding machine body 5.1, and an adjusting guide shaft 5.2, a rubber roller 5.3 and a winding shaft 5.4 which are respectively arranged on the winding machine body 5.1 in a rotating manner, wherein the adjusting guide shaft 5.2, the rubber roller 5.3 and the winding shaft 5.4 are sequentially arranged in the film conveying direction, the adjusting guide shaft 5.2 is used for tensioning a film material belt, the winding shaft 5.4 is used for winding the film material belt, the adjusting guide shaft 5.2 and the winding shaft 5.4 are respectively positioned on two sides of the rubber roller 5.3, the diameters of the adjusting guide shaft 5.2 and the winding shaft 5.4 are adjustable, and in the winding process, at least the diameter of the winding shaft 5.4 is gradually adjusted from large to small. In the process of winding the film, the deformation degree of the inner ring film caused by the change of internal stress can be reduced by gradually adjusting the shaft diameter of the winding shaft from large to small, so that the film inside the film roll can be normally compounded and printed, and the tension of the film caused by winding can be properly reduced by adjusting the shaft diameter of the adjusting guide shaft, so that the film is prevented from transitionally stretching in a large winding state, and the quality of the film is ensured.
The adjusting guide shaft 5.2 and the rewinding shaft 5.4 are of an inflatable shaft structure, the shaft diameter of the shaft body can be quickly adjusted, and the structure is simple. The winding shaft 5.4 changes the contact tensioning force of the winding shaft and the inner ring of the film roll through diameter adjustment.
The structure of the winding shaft 5.4 is the same as that of the adjusting guide shaft 5.2, the shaft bodies of the winding shaft 5.4 and the adjusting guide shaft 5.2 are provided with pressure sensors 5.5, and the detection surfaces of the pressure sensors are propped against the inner side walls of the film rolls; the pressure sensor 5.5 detects the tension of the film on the axial surfaces of the winding shaft 5.4 and the adjusting guide shaft 5.2, and the tension of the film roll on the winding shaft 5.4 or the guide shaft can be detected in real time through the pressure sensor 5.5.
The adjusting guide shaft 5.2 and the rolling shaft 5.4 are provided with a plurality of expansion keys 5.6, the expansion keys 5.6 are arranged in a telescopic adjusting mode in the radial direction of the rolling shaft, one supporting surface of each expansion key 5.6 is concavely provided with a mounting groove 5.7, and the pressure sensor 5.5 is arranged in each mounting groove 5.7.
The automatic discharging mechanism comprises a transverse displacement mechanism 5.11, a lifting mechanism and a rotary flat-laying mechanism 5.13, wherein the transverse displacement mechanism 5.11 is arranged on a winding machine body, the transverse displacement mechanism 5.11 can be a linear displacement mechanism, two groups of transverse displacement mechanisms 5.11 are respectively arranged corresponding to two ends of a winding shaft 12, the lifting mechanism is arranged on the movable end of the transverse displacement mechanism, two ends of the winding shaft 5.4 are erected on the lifting mechanism, the lifting mechanism comprises a groove structure for supporting and positioning the winding shaft 12 to rotate, the lifting mechanism and the winding shaft can displace towards one side deviating from a rubber roller through the transverse displacement mechanism 5.11, the lifting mechanism faces or is far away from the rubber roller 5.3 through the transverse displacement mechanism, the discharging end of the transverse displacement mechanism 5.11 is provided with a rotary flat-laying mechanism 5.13, the winding shaft 5.4 is lifted to the air or placed on the ground through the rotary flat-laying mechanism 5.13, and the winding shaft 5.4 is placed in or lifted away from the lifting mechanism through the rotary flat-laying mechanism 5.13.
The rotating and horizontally-placed mechanism 5.13 comprises a telescopic mechanism 5.14 and a swinging arm 5.15, the two groups of the swinging arms 5.15 are respectively arranged corresponding to two ends of a winding shaft, one end of each swinging arm 5.15 is rotatably arranged on a winding machine body, the other end of each swinging arm 5.15 comprises a receiving clamping groove 5.16 for receiving a winding shaft 5.4, the receiving clamping grooves 5.16 are of semicircular opening structures, one side of each receiving clamping groove deviating from the winding shaft 5.4 is provided with a shaft rod stop block, one end of each shaft rod stop block is limited and supports the winding shaft 5.4, one end of each telescopic mechanism is hinged to the winding machine body, and the other end of each telescopic mechanism is hinged to the arm body of each swinging arm 5.15 at an interval. When the winding shaft after winding is completed, the winding shaft is displaced to one side of the swing arm through the transverse displacement mechanism and the lifting mechanism, and is placed on the swing arm, and can be lifted and placed on the ground through the swing of the swing arm, so that the automatic unloading can be realized, and the manual labor intensity is reduced.
The lifting mechanism comprises a sliding seat 5.12, a guide plate 5.25, movable rods 5.18 and guide pins 5.21, wherein the sliding seat 5.12 is arranged on a winding machine body in a sliding manner along the displacement direction of the transverse displacement mechanism 5.11, the sliding seat 5.12 is provided with two movable rods 5.18 in a penetrating manner at vertical upper intervals, the two movable rods 5.18 extend out to the top of the sliding seat 5.12 to form a supporting groove body for rotating a winding shaft 5.4, the bottom ends of the two movable rods 5.18 are fixedly connected relatively and are provided with the guide pins 5.21, the winding machine body is provided with the guide plates 5.25 adjacent to the transverse linear displacement mechanism 5.11, the guide plates 5.25 are provided with lifting sliding grooves, the guide pins 5.21 are arranged in the lifting sliding grooves through the transverse linear displacement mechanism, the lifting sliding grooves comprise transverse groove sections 5.22 along the displacement direction and oblique groove sections 5.23 which are obliquely arranged at high and low, the high ends of the oblique groove sections 5.23 are communicated with the transverse groove sections, and the oblique groove sections 5.23 are arranged towards the low ends of the swing arm sections 5.23; when the movable rod 5.18 moves to the inclined groove section, the movable rod 5.18 moves downwards, and the two ends of the winding shaft 5.4 lose limit and roll on the swing arm 5.15.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (7)
1. A multilayer coextrusion blown film system for excellent film forming is characterized in that: the automatic weighing and proportioning device comprises an automatic weighing and proportioning device (1), an extruder device (2), a film bubble inner and outer cooling device (3), a rotary deviation correcting device (4) and a central winding device (5), wherein the feeding end of the extruder device (2) is provided with the automatic weighing and proportioning device (1), the discharging end of the extruder device (2) is provided with a film bubble forming die, the film bubble forming die is provided with the film bubble inner and outer cooling device (3), the film bubble inner and outer cooling device (3) cools the inner side and the outer side of a film bubble at the same time, the rotary deviation correcting device (4) and the central winding device (5) are arranged in the conveying direction of the film, the rotary deviation correcting device (4) rotationally pulls and corrects the width of the film, and the central winding device (5) winds the film after pulling and correcting;
the inner and outer cooling device (3) of the membrane bubble comprises a heat exchange air pipe (3.4) penetrating through a membrane bubble forming die body (3.1), an air inlet end of the heat exchange air pipe (3.4) is positioned at an inner ring of the membrane bubble and extends along the length direction of the membrane bubble, an air outlet end of the heat exchange air pipe (3.4) is positioned at the outer side of the membrane bubble and extends towards the bottom end of the membrane bubble forming die body (3.1), an inner cooling component (3.2) is arranged on the inner side of the membrane bubble forming die body (3.1) corresponding to the membrane bubble (3.10), the inner cooling component (3.2) radiates heat towards the inner ring of the membrane bubble (3.10) in an air-cooling mode, an outer cooling component (3.3) is arranged on the outer side of the membrane bubble forming die body (3.1) and faces the outer side surface of the membrane bubble in an air-cooling mode, and the outer cooling component (3.3) and the inner cooling component are correspondingly arranged in the radial direction of the membrane bubble;
the film bubble forming die comprises a film bubble forming die body (3.1), wherein a mounting channel (3.5) is formed in a penetrating manner along the length direction of the film bubble, heat exchange air pipes (3.4) are arranged in the mounting channel (3.5) in a penetrating manner at intervals, an inner cooling air inlet channel (3.6) is formed between each heat exchange air pipe (3.4) and the corresponding mounting channel (3.5), an inner cooling assembly (3.2) is arranged corresponding to an air outlet of the inner cooling air inlet channel (3.6), and air flow of the inner cooling air inlet channel (3.6) is diffused on the inner ring wall of the film bubble through the periphery of the inner cooling assembly (3.2);
the inner cooling assembly (3.2) comprises an inner cooling guide top plate (3.20) positioned at the air outlet end of the inner cooling air inlet channel (3.6), the inner cooling guide top plate (3.20) is of a back-off cover body structure, the inner cooling guide top plate (3.20) is sleeved outside the heat exchange air pipe (3.4), the outer edge of the inner cooling guide top plate (3.20) and a film bubble form an air cooling channel, the inner cooling guide top plate (3.20) is arranged on the upper surface of the film bubble forming die body (3.1) at intervals, the inner cooling guide top plate (3.20) and the upper surface of the die form an annular inner cooling air outlet (3.21), an air flow channel of the inner cooling air outlet (3.21) and the length direction of the film bubble (3.10) are arranged in an included angle, the inner cooling air outlet is obliquely arranged towards the moving direction of the film bubble, and the air flow at the air outlet end of the inner cooling air inlet channel is circumferentially diffused through the inner cooling air outlet (3.21);
a plurality of groups of internal cooling guide intermediate plates (3.23) are arranged between the internal cooling guide top plates (3.20) and the air outlet of the internal cooling air inlet channel (3.6) at intervals along the length direction of the heat exchange air pipe, the guide intermediate plates are identical in structure, the guide intermediate plates are sequentially stacked in the axial direction, guide air cavities are formed among the internal cooling guide intermediate plates, between the internal cooling guide intermediate plates and between the internal cooling guide top plates, a plurality of middle guide holes (3.22) communicated with adjacent guide air cavities are formed in a penetrating manner on the plate body of the internal cooling guide intermediate plates (3.23), and the guide air cavities are communicated with each other through the middle guide holes (3.22);
the external cooling assembly (3.3) comprises an external cooling guide ring (3.31) sleeved on the outer ring of the membrane bubble, the external cooling guide ring (3.31) is of a shell structure comprising an inner cavity, an external cooling air outlet (3.32) is formed in one side of the external cooling guide ring (3.31) corresponding to the membrane bubble, the external cooling air outlet is of a linear annular groove structure, and the external cooling air outlet is obliquely arranged towards the extending direction of the membrane bubble;
an outer cooling adjusting ring (3.33) is arranged in the inner ring of the outer cooling guide ring (3.31) in an adjustable mode along the axial direction, and the size of the air outlet is adjusted by the outer cooling air outlet (3.32) through the outer cooling adjusting ring (3.33).
2. The multilayer coextrusion blown film system for good film formation according to claim 1, wherein: the novel cold air distribution device is characterized in that a first external cold distribution ring is arranged in an external cold air outlet (3.32), the first external cold distribution ring is coaxially arranged on the inner ring side of an external cold adjusting ring (3.33), the first external cold distribution ring is axially adjusted relative to the displacement of the external cold adjusting ring (3.33), at least one first separation ring (3.38) with an L-shaped section is coaxially arranged at one end of the external cold adjusting ring (3.33) corresponding to the external cold air outlet (3.32), a plurality of first through flow distribution holes are formed in radial arms of the first separation ring (3.38), the axial arm distance of the first separation ring (3.38) is arranged on the inner side of the first external cold distribution ring, and the external cold air outlet (3.32) is separated into a first separation port corresponding to the first external cold distribution ring and a second separation port (3.42) corresponding to the first separation ring (3.38) through the first separation ring (3.38).
3. The multilayer coextrusion blown film system for good film formation according to claim 1, wherein: the rotary deviation correcting device (4) comprises a machine body (4.11), a supporting shaft (4.5) with the bottom end arranged on the machine body (4.11) and a traction roller I (4.1) for tensioning a film (10) respectively, wherein the traction roller I (4.1), the traction roller II (4.2) and the traction roller III (4.3) are sequentially arranged on the supporting shaft (4.5) from bottom to top through mounting brackets, a guide roller (4.4) for introducing the film is transversely arranged on the machine body at an upper distance from the supporting shaft (4.5), the guide roller and the machine body are oppositely and fixedly arranged and used for flattening and guiding a film layer, a traction roller II (4.2) is arranged above the guide roller (4.4) at a distance from the guide roller II (4.2) and the traction roller II (4.2), a traction roller III (4.3) is arranged above the traction roller I (4.1) at a distance from bottom to top of the traction roller II (4.1), a traction roller III (4.3) is arranged between the traction roller II and the traction roller II (4.3) and the traction roller II (4.2) relative to the supporting shaft, and the traction roller II is arranged in a horizontal plane of the machine body and is far away from the supporting shaft (4.2.3).
4. A film forming system according to claim 3, wherein: the mounting bracket comprises a first mounting frame (4.30 a) for mounting a first traction roller (4.1), a second mounting frame (4.30 b) for mounting a second traction roller (4.2), and a third mounting frame (4.30 c) for mounting a third traction roller (4.3), at least the first mounting frame (4.30 a) or the second mounting frame (4.30 b) or the third mounting frame (4.30 c) is of a hollow bracket body structure comprising a bracket air cooling channel, the mounting bracket comprises an air inlet channel interface (4.8) connected with an air source corresponding to the bracket air cooling channel, a plurality of bracket micropores (4.9) are distributed and arranged on the mounting bracket in a manner of being communicated with the bracket air cooling channel, and the bracket air cooling micropores (4.9) are distributed and arranged in the width direction of the film layer and face the film layer in a flattened state;
the second mounting frame (4.30 b) comprises a plurality of mounting seats (4.31) for mounting the second traction roller and a plurality of cantilever beams (4.32) with one ends rotatably arranged on the supporting shaft (4.5) and the other ends connected with the mounting seats (4.31), and the bracket air cooling channel is at least arranged on the cantilever beams (4.32).
5. The multilayer coextrusion blown film system for good film formation according to claim 1, wherein: the center winding device (5) comprises a winding machine body (5.1), an adjusting guide shaft (5.2) and a winding shaft (5.4), wherein the adjusting guide shaft (5.2) and the winding shaft (5.4) are respectively and rotatably arranged on the winding machine body (5.1), the adjusting guide shaft (5.2) and the winding shaft (5.4) are sequentially arranged in the film conveying direction, the adjusting guide shaft (5.2) is used for tensioning a film material belt, the winding shaft (5.4) is used for winding the film material belt, the diameters of the adjusting guide shaft (5.2) and the winding shaft (5.4) are adjustable, at least the diameter of the winding shaft (5.4) is gradually adjusted from large to small in the winding process, the winding shaft (5.4) is used for changing the contact tensioning acting force of the winding shaft and the inner ring of a film roll through diameter adjustment, and the adjusting guide shaft (5.2) and the winding shaft (5.4) are of an air expansion shaft structure;
the winding shaft (5.4) and the adjusting guide shaft (5.2) have the same structure, the shaft bodies of the winding shaft (5.4) and the adjusting guide shaft (5.2) are provided with pressure sensors (5.5), and the detection surfaces of the pressure sensors are propped against the inner side wall of the film roll; the pressure sensor (5.5) detects the tension of the film on the axial surface of the winding shaft (5.4) and the adjusting guide shaft (5.2);
the adjusting guide shaft (5.2) and the winding shaft (5.4) are provided with a plurality of expansion keys (5.6), the expansion keys (5.6) are arranged in a telescopic adjusting mode on the radial direction of the winding shaft, one of the support surfaces of the expansion keys (5.6) is concavely provided with a mounting groove (5.7), and the pressure sensor (5.5) is arranged in the mounting groove (5.7).
6. The multilayer coextrusion blown film system for good film formation according to claim 5, wherein: the automatic discharging mechanism comprises a transverse displacement mechanism (5.11), a lifting mechanism and a rotary flat-laying mechanism (5.13), wherein the transverse displacement mechanism (5.11) is perpendicular to a winding axis and arranged on a winding machine body, the lifting mechanism is arranged on the movable end of the transverse displacement mechanism, two ends of a winding shaft (5.4) are erected on the lifting mechanism, the lifting mechanism faces or is far away from a rubber roller (5.3) through the transverse displacement mechanism, the discharging end of the transverse displacement mechanism (5.11) is provided with the rotary flat-laying mechanism (5.13), the winding shaft (5.4) is lifted into the air or placed on the ground through the rotary flat-laying mechanism (5.13), and the winding shaft (5.4) is placed in or lifted away from the lifting mechanism through the rotary flat-laying mechanism (5.13);
the utility model provides a mechanism (5.13) is kept flat in rotation, including telescopic machanism (5.14) and swing arm (5.15), two sets of swing arm (5.15) correspond the both ends setting of rolling axle respectively, just the one end rotation of swing arm (5.15) sets up on the rolling machine organism, the other end of swing arm (5.15) contains and is used for accepting draw-in groove (5.16) of accepting of spool (5.4), accept draw-in groove (5.16) and be semi-circular opening structure, just accept draw-in groove and deviate from one side in rolling axle (5.4) and be provided with the axostylus axostyle dog, axostylus axostyle dog is spacing and bearing rolling axle (5.4), telescopic machanism's one end articulates the setting on the rolling machine organism, and the other end interval is articulated the setting on the arm body of swing arm (5.15) in the rotation end of swing arm (5.15).
7. The multilayer coextrusion blown film system for good film formation according to claim 6, wherein: the lifting mechanism comprises a sliding seat (5.12), a guide plate (5.25), movable rods (5.18) and guide pins (5.21), wherein the sliding seat (5.12) is arranged on a winding machine body in a sliding mode along the displacement direction of a transverse displacement mechanism (5.11), the sliding seat (5.12) is vertically provided with two movable rods (5.18) in a penetrating mode at intervals, the two movable rods (5.18) extend out to the top of the sliding seat (5.12) to form a supporting groove body for a winding shaft (5.4) to rotate, the bottom ends of the two movable rods (5.18) are fixedly connected relatively, the guide pins (5.21) are arranged, the winding machine body is provided with the guide plates (5.25) adjacent to the transverse linear displacement mechanism (5.11), lifting sliding grooves are formed in the guide plates (5.25) through the transverse linear displacement mechanism, each lifting sliding groove comprises a transverse groove section (5.22) along the displacement direction and an oblique groove (23.23) which is arranged at the lower side of the oblique groove section, and is arranged at the oblique side of the oblique groove section (5.23) and is opposite to the oblique groove side of the oblique section (5.23); when the movable rod (5.18) moves to the inclined groove section, the movable rod (5.18) moves downwards, and the two ends of the winding shaft (5.4) lose limit and roll on the swing arm (5.15).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10029175A1 (en) * | 1999-09-09 | 2001-06-13 | Kdesign Gmbh | Controlling and automatically controlling thickness profile in blown film production, involves supplying additional air streams in direction of production in front of main cooling ring |
| CN204076811U (en) * | 2014-07-07 | 2015-01-07 | 武汉新中德塑机股份有限公司 | A kind of self-adhesive film production equipment |
| CN107053648A (en) * | 2017-05-26 | 2017-08-18 | 广东金明精机股份有限公司 | Upward type internal cooling structure for multilayer co-extrusion film blowing machine |
| CN108688033A (en) * | 2018-04-04 | 2018-10-23 | 华南理工大学 | A kind of inflation film internal cooling method and device |
-
2021
- 2021-12-31 CN CN202111676858.6A patent/CN114474771B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10029175A1 (en) * | 1999-09-09 | 2001-06-13 | Kdesign Gmbh | Controlling and automatically controlling thickness profile in blown film production, involves supplying additional air streams in direction of production in front of main cooling ring |
| CN204076811U (en) * | 2014-07-07 | 2015-01-07 | 武汉新中德塑机股份有限公司 | A kind of self-adhesive film production equipment |
| CN107053648A (en) * | 2017-05-26 | 2017-08-18 | 广东金明精机股份有限公司 | Upward type internal cooling structure for multilayer co-extrusion film blowing machine |
| CN108688033A (en) * | 2018-04-04 | 2018-10-23 | 华南理工大学 | A kind of inflation film internal cooling method and device |
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