CN114147944B - Magnetic suspension film biaxial stretching device - Google Patents
Magnetic suspension film biaxial stretching device Download PDFInfo
- Publication number
- CN114147944B CN114147944B CN202111634513.4A CN202111634513A CN114147944B CN 114147944 B CN114147944 B CN 114147944B CN 202111634513 A CN202111634513 A CN 202111634513A CN 114147944 B CN114147944 B CN 114147944B
- Authority
- CN
- China
- Prior art keywords
- film
- stretching
- magnetic
- magnetic suspension
- cooling system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 37
- 238000010096 film blowing Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000005339 levitation Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000003491 array Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 229920006255 plastic film Polymers 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
-
- 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
-
- 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
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a magnetic suspension film biaxially oriented device which comprises a film blowing system, a primary cooling system, a slow drawing roller, a heating system, a transverse drawing system, a fast drawing roller, a secondary cooling system and a winding system, wherein all parts are sequentially and horizontally arranged in sequence. The transverse stretching system mainly comprises an electromagnet monomer, a magnetic ball, a baffle, a driving gear, a turning gear and a driven gear. The film enters the heating system after passing through the slow pulling roller, the magnetic suspension array is converted from an initial parallel position to an open position with a certain angle, and the magnetic force balls suspended in the film are driven by the magnetic suspension array outside the film to jointly transversely expand by utilizing the electromagnetic principle, so that the purpose of transversely stretching the film can be achieved. Longitudinal stretching relies on adjusting the speed difference between the slow and fast stretching rollers to achieve the purpose of longitudinal stretching of the film. The complex structure of the traditional biaxial stretching device is simplified while the use performance is improved by the biaxial stretching of the film, the surface damage of the film at the stretching position is avoided, and the generation of waste materials is reduced.
Description
Technical Field
The invention relates to a plastic stretching forming device, in particular to a magnetic suspension film biaxial stretching device.
Background
The plastic film has been developed into one of the plastic products with the largest yield and the largest variety in China, and is widely applied to the fields of packaging, electronic and electric appliances, agriculture, building decoration, daily necessities and the like, and the yield of the plastic film accounts for about 20 percent of the total yield of the plastic. The plastic film is formed by a plurality of methods, such as calendaring, blow molding, stretching, etc. Among them, biaxially oriented film has been one of the methods of interest in recent years, and plastic films produced by biaxially oriented technology have significantly improved mechanical properties compared with unstretched and uniaxially stretched films, and the stretched film has 3 to 5 times the tensile strength of the unstretched film, and is improved in terms of barrier properties, optical properties, heat resistance, and the like.
The film is stretched in two directions at a temperature range above the glass transition temperature and below the melting point by stretching the film by a certain multiple in the longitudinal direction and the transverse direction under the action of external force by a stretcher, so that molecular chains or crystal faces are oriented in a direction parallel to the plane of the film and are orderly arranged, then the film is heat-set in a tensioned state, the oriented macromolecular structure is fixed, and finally the film is prepared by cooling and subsequent treatment. The traditional film bidirectional synchronous stretching device is characterized in that the device is fixed on two annular tracks and two driving chain clamps, and the distance between the driving chain clamps is gradually increased along with the gradual increase of the distance between the driving chain clamps, so that the distance between the driving chain clamps and the two side edges of the film is gradually increased, and the film is transversely stretched. In the longitudinal stretching process, each annular track comprises an inner side rail and an outer side rail arranged outside the inner side rail, the distance between the inner side rail and the outer side rail is gradually reduced from front to back, when the driving chain clamp runs on the stretching section, the included angle between adjacent chain plates of the driving chain clamp is correspondingly increased, and the distance between clamps connected with the adjacent chain plates is increased, so that the longitudinal stretching of the film is realized. However, in the conventional chain clamp type film biaxial stretching process, the structure of the film biaxial synchronous stretching device is complex, and the surface quality of the film is difficult to ensure at the clamp, so that unnecessary cost loss is caused.
Therefore, how to improve the service performance of the film by biaxial stretching, avoid the surface damage of the film at the stretching position and reduce the generation of waste is a key problem to be solved in the existing biaxial film stretching molding method.
Disclosure of Invention
The invention provides a magnetic levitation film bidirectional stretching device, which aims at solving the problems that the existing polymer film is uneven in unidirectional stretching strength and a film clamp is easy to damage in bidirectional stretching, and synchronously stretches the film transversely and longitudinally. The transverse stretching utilizes electromagnetism to generate transverse tension, the film is stretched through cooperation of an external electromagnetic generator and a magnetic ball in the film, and the film is longitudinally stretched through speed difference between traction rollers, so that the use performance of the biaxially stretched film is guaranteed, the surface damage of the film at the stretching position of the clamp is avoided, and the generation of waste is reduced.
The magnetic suspension film biaxially oriented device comprises a film blowing system, a primary cooling system, a slow pulling roller, a heating system, a transverse stretching system, a fast pulling roller, a secondary cooling system and a winding system, wherein the components are horizontally and sequentially arranged according to the sequence of the film blowing system, the primary cooling system, the slow pulling roller, the heating system, the transverse stretching system, the fast pulling roller, the secondary cooling system and the winding system. The film blowing system mainly comprises an extruder, an air hole, a die head and a film guiding roller. The transverse stretching system mainly comprises an electromagnet monomer, a magnetic ball, a baffle, a driving gear, a turning gear and a driven gear. In the film blowing system, a film blowing driving motor provides power to drive an extruder screw to rotate, a material to be processed is heated to a molten state in a machine barrel and extruded at a die head, an air hole is arranged at the center of the die head, air flow is blown out of the air hole, and a film is primarily stretched under the inflation effect of an air pump and the traction effect of a film guiding roller, so that an initial film with a certain inflation ratio is generated. Through traction, the film passes through a primary cooling system, the primary cooling system comprises three cooling rollers which are vertically arranged, the film is fully cooled to room temperature under the action of the primary cooling system, then the film passes through a slow-pulling roller, the slow-pulling roller is kept in a low-rotation-speed state at the moment and only plays a role in traction, the film enters a heating system after passing through the slow-pulling roller, the heating system comprises a preheating zone, a stretching zone and a shaping zone, wherein the temperature of the stretching zone is higher, the stretching zone is next to the preheating zone and the shaping zone, a transverse stretching system is arranged in the stretching zone of the heating system, the transverse stretching system comprises a magnetic suspension array, a plurality of magnetic balls, a magnetic suspension array driving motor, a driving gear, a turning gear and a driven gear, the magnetic suspension array consists of a plurality of electromagnet units, each electromagnet unit is horizontally arranged at a distance of 4-5cm, the end part of each electromagnet unit is provided with a circular groove, the diameter of each groove is larger than that of a magnetic ball, an aluminum foil tape is attached to the surface of each groove, the smoothness of the surface of each groove can be increased, and friction between the grooves and a film passing longitudinally is reduced. The number of the magnetic balls is the same as that of the electromagnet monomers, and the magnetic balls with the diameter of 3-4cm are selected for use in consideration of the fact that the magnetic balls are not easy to operate when the diameter of the magnetic balls is smaller and are easy to fall under the influence of gravity when the diameter of the magnetic balls is too large. The magnetic suspension array is provided with a baffle plate which is horizontally arranged, the length of the baffle plate is the same as that of the magnetic suspension array, the baffle plate is provided with a limit groove, and when the magnetic force ball suspended in the film falls down due to the magnetic force of the electromagnet monomer, the baffle plate can catch the falling magnetic force ball and enable the falling magnetic force ball to roll into the limit groove. The baffle bottom is equipped with driven gear respectively, arranges under the magnetic ball of starting end, and with the magnetic ball coaxial line of starting end in the vertical direction, when driven gear rotation in both sides, the magnetic ball position of starting end in both sides does not change. After the film passes through the preheating zone by manual traction, the film enters the stretching zone, at the moment, magnetic suspension arrays at two sides of the film in a transverse stretching system are in parallel positions, when the film passes through the starting end of the magnetic suspension arrays, the magnetic suspension arrays enter a debugging state, magnetic balls are sequentially placed into the film by hand, the internal magnetic balls are sequentially attracted with external magnets outside the film under the action of magnetic force, when the magnetic balls are completely placed into the film, a temperature control switch of the stretching zone is started, the film is heated to a high-elastic state in the stretching zone, a driving motor of the magnetic suspension arrays is started, a motor shaft is regulated by a control circuit to rotate, a driving gear rotates by a corresponding angle along with the motor shaft, in the magnetic suspension arrays, a driven gear at one side is directly meshed with the driving gear, the driven gears on the other side are meshed with the driving gear through a turning gear way, the driven gears on the two sides are opposite in turning, the magnetic suspension arrays on the two sides are transversely unfolded under the driving of the driven gears, the magnetic suspension arrays are converted from initial parallel positions to open positions with a certain angle, after the specified stretching ratio is reached, the magnetic suspension driving motor is turned off, and the magnetic suspension arrays on the two sides are distributed in an splayed shape, so that the purpose of transversely stretching the film is achieved. The longitudinal stretching of the film depends on a slow pull roller and a fast pull roller, and the purpose of longitudinal stretching of the film is achieved by adjusting the speed difference between the slow pull roller and the fast pull roller. The film after biaxial stretching enters a secondary cooling system, the structure of the film is the same as that of the primary cooling system, and after the film is cooled to room temperature, the film is collected into a roll through a rolling system.
According to the magnetic suspension film biaxial stretching device, the magnetic force balls suspended in the film are driven to jointly transversely expand by the magnetic suspension array outside the film by utilizing the electromagnetic principle, so that the purpose of transversely stretching the film can be achieved. Meanwhile, the longitudinal stretching is realized by adjusting the speed difference between the slow pulling roll and the fast pulling roll. The complex structure of the traditional biaxial stretching device is simplified while the use performance is improved by the biaxial stretching of the film, the surface damage of the film at the stretching position is avoided, and the generation of waste materials is reduced.
Drawings
Fig. 1 is a front view of a biaxially oriented magnetic suspension film drawing device according to the present invention.
Fig. 2 is a plan view of a biaxially oriented magnetic suspension film drawing device according to the present invention.
Fig. 3 is a schematic diagram of a film blowing system of a magnetic levitation film biaxially oriented device according to the present invention.
Fig. 4 is a schematic diagram of a transverse stretching system of a magnetic levitation film biaxially stretching device according to the present invention.
Fig. 5 is a side view of a magnetic levitation array of a magnetic levitation film biaxially oriented device of the present invention.
In the figure: 1-a film blowing system; 1-an extruder; 1-2-pores; 1-3-die head; 1-4, a traction roller; 2-a primary cooling system; 3-slow pulling rolls; 4-a heating system; 5-a transverse stretching system; 5-1-electromagnet monomer; 5-2-magnetic ball; 5-3, a baffle plate; 6, a quick pull roller; 7-a secondary cooling system; 8, a winding system; 9-a driving gear; 10-a turning gear; 11-driven gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention relates to a magnetic suspension film biaxially oriented drawing device, shown in figures 1 and 2, mainly comprising a film blowing system 1, a primary cooling system 2, a slow drawing roller 3, a heating system 4, a transverse drawing system 5, a fast drawing roller 6, a secondary cooling system 7 and a winding system 8, wherein the film blowing system 1 mainly comprises an extruder 1-1, an air hole 1-2, a die head 1-3, a traction roller 1-4, shown in figure 3, and the transverse drawing system 5 mainly comprises an electromagnet monomer 5-1, a magnetic ball 5-2, a baffle plate 5-3, a driving gear 9, a turning gear 10 and a driven gear 11, shown in figures 4 and 5. The components of the film blowing system are horizontally and sequentially arranged according to the sequence of a film blowing system 1, a primary cooling system 2, a slow drawing roller 3, a heating system 4, a transverse drawing system 5, a fast drawing roller 6, a secondary cooling system 7 and a winding system 8. In the film blowing system 1, a film blowing driving motor provides power to drive an extruder screw to rotate, a material to be processed is heated to a molten state in a machine barrel and extruded at a die head 1-3, an air hole 1-2 is arranged at the center of the die head 1-3, air flow is blown out of the air hole 1-2, and a film is primarily stretched under the inflation effect of an air pump and the traction effect of a traction roller 1-4, so that an initial film with a certain inflation ratio is generated. By traction, the film passes through the primary cooling system 2, the primary cooling system 2 consists of three vertically arranged cooling rollers, and the film is fully cooled to room temperature under the action of the primary cooling system. Then the film passes through a slow pulling roll 3, at the moment, the slow pulling roll 3 is kept in a low rotation speed state and only plays a role of traction, the film enters a heating system 4 after passing through the slow pulling roll 3, the heating system 4 comprises a preheating zone, a stretching zone and a shaping zone, wherein the temperature of the stretching zone is higher, the stretching zone is next the preheating zone and the shaping zone, a transverse stretching system 5 is arranged in the stretching zone in the heating system 4, the transverse stretching system 5 comprises a magnetic suspension array, a plurality of magnetic balls 5-2, a magnetic suspension array driving motor, a driving gear 9, a turning gear 10 and a driven gear 11, the magnetic suspension array consists of a plurality of electromagnet monomers 5-1, each electromagnet monomer 5-1 is horizontally arranged at intervals of 4-5cm, the end of the electromagnet monomer 5-1 is provided with a circular groove, the diameter of the groove is larger than that of the magnetic ball 5-2, and an aluminum foil tape is attached to the surface of the groove, so that the smoothness of the surface of the groove can be improved, and the friction between the surface of the groove and a film passing longitudinally is reduced. The number of the magnetic balls 5-2 is the same as that of the electromagnet monomers 5-1, and the magnetic balls 5-2 are 3-4cm in diameter because the magnetic balls 5-2 are not easy to operate when the diameter is small, and are easy to fall under the influence of gravity when the diameter is too large. The magnetic suspension array is provided with the baffle plates 5-3 which are horizontally arranged, the length of the baffle plates 5-3 is the same as that of the magnetic suspension array, the baffle plates 5-3 are provided with limit grooves, and when the magnetic balls 5-2 suspended in the film fall down due to the magnetic force reduction of the electromagnet monomers 5-2, the baffle plates 5-3 can catch the falling magnetic balls 5-2 and enable the falling magnetic balls to roll into the limit grooves, as shown in fig. 5. The bottom ends of the baffle plates 5-3 are respectively provided with a driven gear 11, the driven gears 11 are arranged right below the initial end magnetic balls and are coaxial with the initial end magnetic balls in the vertical direction, when the driven gears 11 on two sides rotate, the positions of the initial end magnetic balls on two sides are not changed, and transverse displacement is not generated, as shown in figures 1 and 4. When the film passes through the preheating zone through manual traction, the film enters the stretching zone, at the moment, the magnetic suspension array in the transverse stretching system 5 is in a parallel position, when the film passes through the beginning end of the magnetic suspension array, the magnetic suspension array enters a debugging state, the magnetic balls 5-2 are manually placed into the film in sequence, the internal magnetic balls 5-2 are sequentially attracted with the external magnet 5-1 of the film under the action of magnetic force, when the magnetic balls are fully placed into the film, the temperature control switch of the stretching zone is started, the film is heated to a high-elastic state in the stretching zone, the magnetic suspension array driving motor is started, the motor shaft is regulated to rotate through the control circuit, the driving gear 9 rotates by a corresponding angle along with the motor shaft, and in the magnetic suspension array, one side driven gear 11 is directly meshed with the driving gear 9, after the other side driven gear 11 is meshed with the driving gear 9 through a turning gear path 10, the two side driven gears 11 are opposite in direction, the two side magnetic suspension arrays are transversely unfolded under the driving of the driven gears 11, the magnetic suspension arrays are converted from initial parallel positions to open positions with a certain angle, after a specified stretching ratio is reached, the magnetic suspension driving motor is turned off, the two side magnetic suspension arrays are distributed in an splayed shape, and therefore the purpose of transversely stretching a film is achieved, and the purpose is shown in fig. 2 and 3. The longitudinal stretching of the film depends on the slow pulling roll 3 and the fast pulling roll 6, and the purpose of longitudinal stretching of the film is achieved by adjusting the speed difference between the slow pulling roll 3 and the fast pulling roll 6. The film after biaxial stretching enters a secondary cooling system 7, the secondary cooling system 7 and the primary cooling system 2 have the same structure, and after the film is cooled to room temperature, the film is collected into a roll through a rolling system 8.
Claims (2)
1. The utility model provides a magnetic suspension film biaxially oriented device which characterized in that: the device comprises a film blowing system, a primary cooling system, a slow drawing roller, a heating system, a transverse stretching system, a fast drawing roller, a secondary cooling system and a winding system, wherein the film blowing system, the primary cooling system, the slow drawing roller, the heating system, the transverse stretching system, the fast drawing roller, the secondary cooling system and the winding system are horizontally arranged in sequence, and the film blowing system mainly comprises an extruder, an air hole, a die head and a film guiding roller; in a film blowing system, a film blowing driving motor provides power to drive an extruder screw to rotate, a material to be processed is heated to a molten state in a machine barrel and extruded at a die head, an air hole is arranged at the center of the die head, air flow is blown out of the air hole, and a film is primarily stretched under the inflation effect of an air pump and the traction effect of a film guiding roller to generate an initial film with a certain inflation ratio; the initial film passes through a primary cooling system, the primary cooling system comprises three cooling rollers which are vertically arranged, the film is fully cooled to room temperature under the action of the primary cooling system, then the film passes through a slow drawing roller, the film enters a heating system after passing through the slow drawing roller, the heating system comprises a preheating zone, a stretching zone and a shaping zone, the temperature of the stretching zone is higher, the stretching zone and the shaping zone are the next time, a transverse stretching system is arranged in the stretching zone in the heating system, the transverse stretching system comprises a magnetic suspension array, a plurality of magnetic balls, a magnetic suspension array driving motor, a driving gear, a turning gear and a driven gear, the magnetic suspension array consists of a plurality of electromagnet monomers which are uniformly distributed, the end parts of the electromagnet monomers are provided with circular grooves, and the diameters of the grooves are larger than the diameters of the magnetic balls; the number of the magnetic balls is the same as that of the electromagnet monomers, a baffle plate which is horizontally arranged is arranged on the magnetic suspension array, the length of the baffle plate is the same as that of the magnetic suspension array, a limiting groove is formed in the baffle plate, driven gears are respectively arranged at the bottom end of the baffle plate and are arranged right below the magnetic balls at the starting end, the driving gears rotate by corresponding angles along with a motor shaft in the vertical direction, one side of each driven gear is directly meshed with each driving gear, the driven gears at the other side are meshed with the driving gears through a turning gear way, the driven gears at the two sides are opposite in turning direction, the film longitudinally stretches by virtue of a slow pulling roller and a fast pulling roller, the film enters a secondary cooling system after being subjected to bidirectional stretching, the secondary cooling system is identical to the primary cooling system in structure, and after the film is cooled to room temperature, the film is collected into a roll through a rolling system; the electromagnet monomers are horizontally arranged at intervals of 4-5 cm; aluminum foil tape is attached to the surface of the circular groove arranged at the end part of the electromagnet monomer.
2. The magnetic levitation film biaxially oriented device according to claim 1, wherein: the diameter of the magnetic ball is 3-4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111634513.4A CN114147944B (en) | 2021-12-29 | 2021-12-29 | Magnetic suspension film biaxial stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111634513.4A CN114147944B (en) | 2021-12-29 | 2021-12-29 | Magnetic suspension film biaxial stretching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114147944A CN114147944A (en) | 2022-03-08 |
| CN114147944B true CN114147944B (en) | 2024-05-28 |
Family
ID=80449332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111634513.4A Active CN114147944B (en) | 2021-12-29 | 2021-12-29 | Magnetic suspension film biaxial stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114147944B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892293B (en) * | 2022-05-12 | 2023-03-21 | 北京化工大学 | Carbon fiber precursor die outer-lamination ultrasonic forging and pressing dimension reduction manufacturing device |
| CN116214902B (en) * | 2023-03-31 | 2023-12-08 | 浙江创富新材料有限公司 | IXPP foam cotton stretching device and stretching process thereof |
| CN118386532B (en) * | 2024-06-27 | 2024-08-27 | 天津东皋膜技术有限公司 | Lithium battery diaphragm extension device for wet process |
| CN118404802B (en) * | 2024-07-01 | 2024-09-03 | 山东玖旺新材料科技有限公司 | Stretching device for high polymer film production |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160964A (en) * | 1986-12-22 | 1988-07-04 | Mitsubishi Heavy Ind Ltd | Film lateral drawing device |
| CN1424236A (en) * | 2003-01-09 | 2003-06-18 | 郭平茹 | Continuous feeding plastic packing apparatus with magnetic suspension iron edge |
| CN109927277A (en) * | 2019-04-08 | 2019-06-25 | 黄劻湛 | A kind of universal type cross directional stretch blown film device for inflation film manufacturing machine |
| CN210880879U (en) * | 2019-09-26 | 2020-06-30 | 瑞安市铭德机械有限公司 | Stretch shaping device of film blowing equipment |
| CN113085155A (en) * | 2021-02-23 | 2021-07-09 | 唐集体 | Plastic film blowing machine |
| CN113478794A (en) * | 2021-07-07 | 2021-10-08 | 合肥乐凯科技产业有限公司 | Thin film processing device and method |
| CN216610031U (en) * | 2021-12-29 | 2022-05-27 | 北京化工大学 | Magnetic suspension film biaxial stretching device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060083859A1 (en) * | 2004-10-20 | 2006-04-20 | Todd Robida | Magnetic levitation system for coating a device, a method of using the system, and device made by the system |
-
2021
- 2021-12-29 CN CN202111634513.4A patent/CN114147944B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160964A (en) * | 1986-12-22 | 1988-07-04 | Mitsubishi Heavy Ind Ltd | Film lateral drawing device |
| CN1424236A (en) * | 2003-01-09 | 2003-06-18 | 郭平茹 | Continuous feeding plastic packing apparatus with magnetic suspension iron edge |
| CN109927277A (en) * | 2019-04-08 | 2019-06-25 | 黄劻湛 | A kind of universal type cross directional stretch blown film device for inflation film manufacturing machine |
| CN210880879U (en) * | 2019-09-26 | 2020-06-30 | 瑞安市铭德机械有限公司 | Stretch shaping device of film blowing equipment |
| CN113085155A (en) * | 2021-02-23 | 2021-07-09 | 唐集体 | Plastic film blowing machine |
| CN113478794A (en) * | 2021-07-07 | 2021-10-08 | 合肥乐凯科技产业有限公司 | Thin film processing device and method |
| CN216610031U (en) * | 2021-12-29 | 2022-05-27 | 北京化工大学 | Magnetic suspension film biaxial stretching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114147944A (en) | 2022-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114147944B (en) | Magnetic suspension film biaxial stretching device | |
| CN216610031U (en) | Magnetic suspension film biaxial stretching device | |
| CN101856872B (en) | Preparation method of continuous fiber reinforced thermoplastic composite material prepreg and equipment thereof | |
| CN104723546B (en) | The stepless bidirectional extending method of thin film based on saddle surface transition | |
| CN104441541B (en) | A kind of wood plastic composite produces unit | |
| CN105583988B (en) | Plastic working system and processing method | |
| WO1998025754A1 (en) | Film bead heating for simultaneous stretching | |
| CN112793138A (en) | Gear transmission type film synchronous biaxial stretching device and matched process method thereof | |
| CN112093522A (en) | Effective dustproof film winding device and use method thereof | |
| CN106113893B (en) | Waterproof roll process of eliminating stress | |
| US3004284A (en) | Apparatus for stretching plastic material | |
| CN214613282U (en) | Roller-adjustable hot stretching device for manufacturing PP (polypropylene) rope | |
| CN102717511B (en) | Biaxially oriented film binding-type horizontal stretching method and device | |
| CN218089911U (en) | Flat filament stretch forming device | |
| CN105293141A (en) | Automatic winding device for film blowing machine | |
| CN106378925B (en) | A kind of material two-way stretch device | |
| CN205076517U (en) | Inflation film manufacturing machine automatic winding device | |
| CN213972552U (en) | Cooling device for packaging film stretching track | |
| CN118404802B (en) | Stretching device for high polymer film production | |
| CN213321688U (en) | Transverse drawing machine for producing thin film | |
| CN206623394U (en) | Upward type film blowing device | |
| CN208290469U (en) | A kind of caterpillar stepless transversal stretching device of film of binding | |
| CN215619940U (en) | Anti-adhesion transverse stretching mechanism for BOPP film preparation | |
| CN204585815U (en) | The stepless two-way stretch device of film based on saddle surface transition | |
| CN206277651U (en) | A kind of material two-way stretch device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |