CN111873390A - Tensile structure is used in production of good unidirectional stretching polyimide film of stability - Google Patents
Tensile structure is used in production of good unidirectional stretching polyimide film of stability Download PDFInfo
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- CN111873390A CN111873390A CN202010667883.7A CN202010667883A CN111873390A CN 111873390 A CN111873390 A CN 111873390A CN 202010667883 A CN202010667883 A CN 202010667883A CN 111873390 A CN111873390 A CN 111873390A
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- Prior art keywords
- stretching
- roller
- polyimide film
- negative pressure
- box
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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
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/023—Half-products, e.g. films, plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2079/00—Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
- B29K2079/08—PI, i.e. polyimides or derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The invention discloses a stretching structure with good stability for producing a unidirectional stretching polyimide film, relates to the technical field of polyimide film production, and aims to solve the problems of poor stretching uniformity and low overall flexibility of the existing stretching structure. The stretching box is characterized in that a metal roller, a transition roller and a limiting roller are arranged inside the stretching box, the limiting roller is located at the lower end of the metal roller, the transition roller is located on two sides of the metal roller, a motor is installed at one end of the metal roller, the metal roller is connected with the motor through a coupling, the metal roller is connected with the stretching box through a bearing, polyimide films are arranged outside the metal roller and the transition roller, a tensioning roller is installed on one side of the outside of the stretching box, a rubber layer is arranged outside the limiting roller, the limiting roller is connected with the rubber layer in a splicing mode, an electromagnetic heating ring is arranged outside the stretching box, and a heat insulation layer is arranged outside the electromagnetic heating ring.
Description
Technical Field
The invention relates to the technical field of polyimide film production, in particular to a stretching structure with good stability for producing a unidirectional stretching polyimide film.
Background
The polyimide film comprises a pyromellitic polyimide film and a biphenyl polyimide film, the preparation method of the film comprises the steps of carrying out tape casting on a polyamic acid solution to form a film, stretching the film, carrying out high-temperature imidization, wherein the film is yellow and transparent, has outstanding high-temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation performance, and can be used in air at a temperature of between two hundred fifty degrees centigrade and two hundred eighty degrees centigrade for a long time, the polyimide film is one of the earliest commodities of polyimide, is used for slot insulation and cable wrapping materials of a motor, the transparent polyimide film can be used as a flexible solar cell bottom plate, and the stretching structure mainly has the function of transversely stretching the film according to a certain stretching multiple and enabling the polyimide film to reach a certain specification after imidization treatment.
However, the existing stretching structure is poor in stretching uniformity and low in overall flexibility, so that the existing requirements are not met, and the stretching structure for producing the uniaxial stretching polyimide film with good stability is provided.
Disclosure of Invention
The invention aims to provide a stretching structure for producing a unidirectionally-stretched polyimide film with good stability, so as to solve the problems of poor stretching uniformity and low overall flexibility of the existing stretching structure in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a tensile structure for producing an unidirectional stretching polyimide film with good stability comprises a stretching box, a stretching and rolling mechanism and a negative pressure dust removal mechanism, wherein a metal roller, a transition roller and a limit roller are arranged inside the stretching box, the limit roller is arranged at the lower end of the metal roller, the transition roller is arranged on two sides of the metal roller, a motor is arranged at one end of the metal roller, the metal roller is connected with the motor through a coupler, the metal roller is connected with the stretching box through a bearing, polyimide films are arranged outside the metal roller and the transition roller, a tensioning roller is arranged on one side outside the stretching box, a rubber layer is arranged outside the limit roller, the limit roller is connected with the rubber layer in a glued mode, an electromagnetic heating ring is arranged outside the stretching box, a heat insulation layer is arranged outside the electromagnetic heating ring, and the electromagnetic heating ring is fixedly connected with the heat insulation layer, and the electromagnetic heating ring is fixedly connected with the stretching box.
Preferably, tensile winding mechanism includes the curb plate, and the curb plate is provided with two, two install tensile wind-up roll between the curb plate, servo motor is installed to the one end of tensile wind-up roll, and servo motor passes through the coupling joint with tensile wind-up roll, and tensile wind-up roll passes through the bearing with the curb plate and is connected, and servo motor passes through the screw connection with the curb plate.
Preferably, the truss is installed to the upper end of curb plate, the regulating block is installed to the below of truss, the fixing base is all installed to the both sides of regulating block, install the spring between fixing base and the truss, the guide bar is installed to the inboard of spring, the guide bar runs through the fixing base, and fixing base and guide bar sliding connection, and spring and fixing base and truss all pass through screw connection, the push pedal is installed to the upper end of regulating block, the lower extreme of truss is provided with the contact.
Preferably, negative pressure dust removal mechanism includes the support frame, negative pressure fan is installed to the upper end of support frame, the induced duct is all installed at negative pressure fan's both ends, the negative pressure dust excluding hood is installed to the one end of induced duct, and the negative pressure dust excluding hood is located tensile winding mechanism's top, and negative pressure fan passes through the screw connection with the support frame, and the induced duct passes through flange joint with negative pressure fan.
Preferably, loop bars are installed at two ends of the tensioning roller, sleeves are installed at the lower ends of the loop bars, the loop bars are embedded into the sleeves and are in sliding connection with the loop bars, tightening bolts are installed on the outer sides of the sleeves and are in threaded connection with the sleeves.
Preferably, one side of the stretching box is provided with a film inlet, the other side of the stretching box is provided with a film outlet, and a plurality of balls are arranged on the inner sides of the film inlet and the film outlet.
Preferably, a box door is installed at the front end of the stretching box, and an observation window is arranged at the upper end of the box door.
Preferably, the lower ends of the stretching box, the stretching and winding mechanism and the negative pressure dust removal mechanism are all provided with fixed chassis, and the fixed chassis is connected with the stretching box, the stretching and winding mechanism and the negative pressure dust removal mechanism in a welding mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention drives the metal roller to rotate at a constant speed to feed the polyimide film through the work of the motor, drives the stretching and winding roller to rotate at a constant speed to stretch and wind the polyimide film through the work of the servo motor, the polyimide film is distributed inside the stretching box through the transition roller, the rubber layer outside the limiting roller is contacted with the polyimide film to apply clamping force, the shrinking of the polyimide film is prevented, the stretching effect and the stretching quality are improved, the rotating linear speed of the stretching and winding roller in unit time is greater than the rotating linear speed of the metal roller in unit time, so that the film outlet speed between the stretching and winding roller and the metal roller is greater than the film inlet speed, the stretching of the polyimide film is realized, the stretching multiple of the polyimide film can be changed through changing the rotating speeds of the motor and the servo motor in unit time, the adjustment is convenient and quick, the stretched polyimide film is wound outside the stretching and winding roller, the collection is convenient for subsequent treatment.
2. The electromagnetic heating coil is electrified to heat the stretching box, so that the stretching box can be rapidly and uniformly heated, air in the stretching box is heated, and the polyimide film is uniformly heated by the air, so that the polyimide film reaches the proper temperature required by stretching, the stretching uniformity and the stretching quality of the polyimide film are improved, and the polyimide film is not easy to break and damage in the stretching process.
3. According to the invention, the plurality of balls are arranged on the inner sides of the film inlet and the film outlet, so that the contact friction force between the polyimide film and the film inlet and the film outlet is reduced, a transition effect is achieved, and the polyimide film is prevented from being scratched when the film is discharged or enters, so that the stretching quality of the polyimide film is further improved.
4. According to the invention, the negative pressure fan works during stretching to perform negative pressure dust removal through the negative pressure dust removal cover, so that the polyimide film is prevented from being adhered with impurities in the air in the stretching process, and the stretching quality of the polyimide film is further improved.
5. According to the invention, the stretched polyimide film is wound by the stretching winding roller, when the winding thickness of the polyimide film is increased and is contacted with the adjusting block, the adjusting block is pushed along with the change of the thickness, the spring is contracted, the adjusting block drives the push plate at the upper end to move upwards along the guide rod, and when the winding thickness of the polyimide film reaches a specified value, the push plate is contacted with the contact, so that the servo motor and the motor stop working, a worker can replace the stretching winding roller, the uniformity of each stretching and winding is ensured, and the flexibility of the whole structure is improved.
6. According to the invention, the sleeve rod is connected with the sleeve in a sliding manner, the position of the tensioning roller can be changed and then limited by the puller bolt, so that the tensioning range and the tensioning force can be quickly adjusted, and the use flexibility is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a stretching structure for producing a high-stability uniaxially stretched polyimide film according to the present invention;
FIG. 2 is a front view of the draw box of the present invention;
FIG. 3 is a diagram showing the positional relationship between the stretching and winding mechanism and the negative pressure dust removing mechanism according to the present invention;
FIG. 4 is an enlarged view of a portion of region A of the present invention;
FIG. 5 is a view showing the connection between the adjusting block and the truss according to the present invention;
fig. 6 is a schematic view of the structure of the tension roller of the present invention.
In the figure: 1. a stretching box; 2. a metal roller; 3. a transition roller; 4. a limiting roller; 5. a polyimide film; 6. a rubber layer; 7. a tension roller; 8. a stretching and winding mechanism; 9. a negative pressure dust removal mechanism; 10. an electromagnetic heating coil; 11. a thermal insulation layer; 12. a side plate; 13. stretching the wind-up roll; 14. a servo motor; 15. a truss; 16. an adjusting block; 17. a fixed seat; 18. a spring; 19. a guide bar; 20. fixing the chassis; 21. pushing the plate; 22. a contact; 23. a support frame; 24. a negative pressure fan; 25. an induced draft pipe; 26. a negative pressure dust hood; 27. a film inlet; 28. a film outlet; 29. a ball bearing; 30. a sleeve; 31. a loop bar; 32. jacking the bolt; 33. a box door; 34. and (4) an observation window.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, an embodiment of the present invention is shown: a tensile structure with good stability for producing a unidirectional tensile polyimide film comprises a tensile box 1, a tensile winding mechanism 8 and a negative pressure dust removal mechanism 9, wherein a metal roller 2, a transition roller 3 and a limit roller 4 are arranged inside the tensile box 1, the limit roller 4 is positioned at the lower end of the metal roller 2, the transition roller 3 is positioned at two sides of the metal roller 2, a motor is arranged at one end of the metal roller 2, the metal roller 2 is connected with the motor through a coupler, the metal roller 2 is connected with the tensile box 1 through a bearing, polyimide films 5 are arranged outside the metal roller 2 and the transition roller 3, a tensioning roller 7 is arranged at one side outside the tensile box 1, a rubber layer 6 is arranged outside the limit roller 4, the rubber layer 6 outside the limit roller 4 is in contact with the polyimide films 5 to apply clamping force, and prevent the polyimide films 5 from shrinking, the stretching effect and the stretching quality are improved, the limiting roller 4 is connected with the rubber layer 6 in a gluing mode, the electromagnetic heating coil 10 is arranged outside the stretching box 1, the heat insulation layer 11 is arranged outside the electromagnetic heating coil 10, the electromagnetic heating coil 10 is fixedly connected with the heat insulation layer 11, the electromagnetic heating coil 10 is fixedly connected with the stretching box 1, the electromagnetic heating coil 10 is electrified to heat the stretching box 1, the stretching box 1 can be rapidly and uniformly heated, air inside the stretching box 1 is heated, the polyimide film 5 is uniformly heated through the air, the polyimide film 5 reaches the appropriate temperature required by stretching, the stretching uniformity and the stretching quality of the polyimide film 5 are improved, the rotating linear speed of the stretching and winding roller 13 in unit time is greater than that of the metal roller 2 in unit time, and the film discharging speed between the stretching and winding roller 13 and the metal roller 2 is greater than the film feeding speed, therefore, the stretching of the polyimide film 5 is realized, the stretching multiple of the polyimide film 5 can be changed by changing the rotating speed of the motor and the servo motor 14 in unit time, and the adjustment is convenient and quick.
Further, the stretching and winding mechanism 8 comprises side plates 12, the two side plates 12 are arranged, a stretching and winding roller 13 is installed between the two side plates 12, a servo motor 14 is installed at one end of the stretching and winding roller 13, the servo motor 14 is connected with the stretching and winding roller 13 through a coupler, the stretching and winding roller 13 is connected with the side plates 12 through bearings, the servo motor 14 is connected with the side plates 12 through screws, and the servo motor 14 drives the stretching and winding roller 13 to rotate at a constant speed to stretch and wind the polyimide film 5.
Further, a truss 15 is installed at the upper end of the side plate 12, an adjusting block 16 is installed below the truss 15, fixing seats 17 are installed on both sides of the adjusting block 16, a spring 18 is installed between the fixing seat 17 and the truss 15, a guide rod 19 is installed on the inner side of the spring 18, the guide rod 19 penetrates through the fixing seat 17, the fixed seat 17 is connected with the guide rod 19 in a sliding way, the spring 18 is connected with the fixed seat 17 and the truss 15 through screws, the upper end of the adjusting block 16 is provided with a push plate 21, the lower end of the truss 15 is provided with a contact 22, the adjusting block 16 is pushed along with the change of the thickness, the spring 18 contracts, the adjusting block 16 drives the push plate 21 at the upper end to move upwards along the guide rod 19, when the rolling thickness of the polyimide film 5 reaches a prescribed value, the push plate 21 is brought into contact with the contact 22, the servo motor 14 and the motor stop working, and the worker can replace the stretching and winding roller 13.
Further, negative pressure dust removal mechanism 9 includes support frame 23, negative pressure fan 24 is installed to the upper end of support frame 23, induced duct 25 is all installed at negative pressure fan 24's both ends, negative pressure dust excluding hood 26 is installed to induced duct 25's one end, and negative pressure dust excluding hood 26 is located tensile winding mechanism 8's top, and negative pressure fan 24 passes through the screw connection with support frame 23, and induced duct 25 passes through flange joint with negative pressure fan 24, negative pressure fan 24 works and carries out the negative pressure through negative pressure dust excluding hood 26 when tensile, avoid the impurity in the 5 adhesion air of tensile in-process polyimide film, further improve the tensile quality to polyimide film 5.
Further, loop bar 31 is all installed at the both ends of tensioning roller 7, sleeve 30 is installed to the lower extreme of loop bar 31, and loop bar 31 imbeds the inside of sleeve 30, and sleeve 30 and loop bar 31 sliding connection, tight bolt 32 in top is installed in the outside of sleeve 30, and tight bolt 32 in top and sleeve 30 threaded connection, loop bar 31 and sleeve 30 sliding connection, it is spacing through tight bolt 32 in top behind the position of tensioning roller 7 to change, thereby carry out quick adjustment to tensioning scope and dynamics, the flexibility of using has further been improved.
Further, one side of tensile case 1 is provided with into membrane mouth 27, and the opposite side of tensile case 1 is provided with out membrane mouth 28, and a plurality of balls 29 have all been installed to the inboard of advancing membrane mouth 27 and play membrane mouth 28, and balls 29 have reduced polyimide film 5 and have advanced the contact friction between membrane mouth 27 and the play membrane mouth 28, play the effect of transition, avoid polyimide film 5 to produce the mar when going out the membrane or advancing the membrane.
Further, a box door 33 is installed at the front end of the stretching box 1, and an observation window 34 is arranged at the upper end of the box door 33, so that the worker can observe the stretching box 1 conveniently.
Further, the lower ends of the stretching box 1, the stretching and winding mechanism 8 and the negative pressure dust removal mechanism 9 are respectively provided with a fixed chassis 20, the fixed chassis 20 is connected with the stretching box 1, the stretching and winding mechanism 8 and the negative pressure dust removal mechanism 9 in a welding mode, the welding connection is good in air tightness and water tightness, the structural rigidity is also high, and the structural integrity is good.
The working principle is as follows: when the device is used, a polyimide film 5 enters the stretching box 1 through the film inlet 27 of the stretching box 1, bypasses each metal roller 2 and each transition roller 3, and finally extends out through the film outlet 28 to be fixed with the stretching wind-up roller 13, because the inner sides of the film inlet 27 and the film outlet 28 are respectively provided with a plurality of balls 29, the contact friction force between the polyimide film 5 and the film inlet 27 and the film outlet 28 is reduced, the transition effect is achieved, the polyimide film 5 is prevented from being scratched when the film is discharged or enters the film, the stretching quality of the polyimide film 5 is further improved, the metal roller 2 is driven by the motor to rotate at a constant speed to feed the polyimide film 5, the stretching wind-up roller 13 is driven by the servo motor 14 to rotate at a constant speed to stretch and wind up the polyimide film 5, the rubber layer 6 outside the limiting roller 4 is contacted with the polyimide film 5 to apply clamping force, prevent the shrinking of the polyimide film 5, improve tensile effect and tensile quality, because the rotational linear velocity of the stretching wind-up roll 13 in unit time is greater than the rotational linear velocity of the metal roller 2 in unit time, thus make the film-out speed between stretching wind-up roll 13 and the metal roller 2 greater than the film-in speed, thus realize the stretching to the polyimide film 5, through changing the rotational velocity of motor and servomotor 14 in unit time, can change the stretching multiple to the polyimide film 5, it is convenient and fast to adjust, when the rolling thickness of the polyimide film 5 increases and contacts with the regulating block 16, promote the regulating block 16 with the change of thickness, the spring 18 shrinks, the regulating block 16 drives the push pedal 21 of the upper end to move upwards along the guide bar 19, when the rolling thickness of the polyimide film 5 reaches the specified value, the push pedal 21 contacts with the contact 22, make the servomotor 14 and motor stop working, the staff can change the stretching take-up roll 13, the loop bar 31 is connected with the sleeve 30 in a sliding way, the position of the tensioning roller 7 can be changed and then limited by the puller bolt 32, so that the tensioning range and the force can be quickly adjusted, the use flexibility is further improved, the electromagnetic heating coil 10 is electrified to heat the stretching box 1, the stretching box 1 can be quickly and uniformly heated, the air in the stretching box 1 is heated, the polyimide film 5 is uniformly heated by the air, the polyimide film 5 reaches the proper temperature required by stretching, the stretching uniformity and the stretching quality of the polyimide film 5 are improved, the polyimide film 5 is ensured not to be easily broken and damaged in the stretching process, the negative pressure fan 24 works to carry out negative pressure dust removal through the negative pressure dust hood 26 during stretching, and the polyimide film 5 is prevented from being adhered with impurities in the air in the stretching process, the stretching quality of the polyimide film 5 is further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a good tensile structure is used in production of one-way stretch polyimide film of stability, includes tensile case (1), tensile winding mechanism (8) and negative pressure dust removal mechanism (9), its characterized in that: the stretching box is characterized in that a metal roller (2), a transition roller (3) and a limit roller (4) are arranged inside the stretching box (1), the limit roller (4) is located at the lower end of the metal roller (2), the transition roller (3) is located on two sides of the metal roller (2), a motor is arranged at one end of the metal roller (2), the metal roller (2) is connected with the motor through a coupler, the metal roller (2) is connected with the stretching box (1) through a bearing, polyimide films (5) are arranged outside the metal roller (2) and the transition roller (3), a tensioning roller (7) is arranged on one side of the outside of the stretching box (1), a rubber layer (6) is arranged outside the limit roller (4), the limit roller (4) is connected with the rubber layer (6) in a bonding manner, an electromagnetic heating ring (10) is arranged outside the stretching box (1), the outer portion of the electromagnetic heating ring (10) is provided with a heat insulation layer (11), the electromagnetic heating ring (10) is fixedly connected with the heat insulation layer (11), and the electromagnetic heating ring (10) is fixedly connected with the stretching box (1).
2. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 1, wherein: tensile winding mechanism (8) include curb plate (12), and curb plate (12) are provided with two, two install tensile wind-up roll (13) between curb plate (12), servo motor (14) are installed to the one end of tensile wind-up roll (13), and servo motor (14) pass through the coupling joint with tensile wind-up roll (13), and tensile wind-up roll (13) pass through the bearing with curb plate (12) and be connected, and servo motor (14) pass through the screw connection with curb plate (12).
3. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 2, wherein: truss (15) are installed to the upper end of curb plate (12), regulating block (16) are installed to the below of truss (15), fixing base (17) are all installed to the both sides of regulating block (16), install spring (18) between fixing base (17) and truss (15), guide bar (19) are installed to the inboard of spring (18), fixing base (17) are run through in guide bar (19), and fixing base (17) and guide bar (19) sliding connection, and spring (18) all pass through screw connection with fixing base (17) and truss (15), push pedal (21) are installed to the upper end of regulating block (16), the lower extreme of truss (15) is provided with contact (22).
4. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 1, wherein: negative pressure dust removal mechanism (9) are including support frame (23), negative pressure fan (24) are installed to the upper end of support frame (23), induced duct (25) are all installed at the both ends of negative pressure fan (24), negative pressure dust excluding hood (26) are installed to the one end of induced duct (25), and negative pressure dust excluding hood (26) are located the top of tensile winding mechanism (8), and negative pressure fan (24) pass through the screw connection with support frame (23), and induced duct (25) pass through flange joint with negative pressure fan (24).
5. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 1, wherein: loop bar (31) are all installed at the both ends of tensioning roller (7), sleeve (30) are installed to the lower extreme of loop bar (31), and loop bar (31) embedding sleeve (30) inside, and sleeve (30) and loop bar (31) sliding connection, puller bolt (32) is installed in the outside of sleeve (30), and puller bolt (32) and sleeve (30) threaded connection.
6. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 1, wherein: one side of the stretching box (1) is provided with a film inlet (27), the other side of the stretching box (1) is provided with a film outlet (28), and a plurality of balls (29) are mounted on the inner sides of the film inlet (27) and the film outlet (28).
7. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 1, wherein: the front end of the stretching box (1) is provided with a box door (33), and the upper end of the box door (33) is provided with an observation window (34).
8. The stretching structure for producing the uniaxially stretched polyimide film with good stability as claimed in claim 1, wherein: fixed chassis (20) are all installed to the lower extreme of drawing case (1), tensile winding mechanism (8) and negative pressure dust removal mechanism (9), and fixed chassis (20) and drawing case (1), tensile winding mechanism (8) and the equal welded connection of negative pressure dust removal mechanism (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667883.7A CN111873390A (en) | 2020-07-13 | 2020-07-13 | Tensile structure is used in production of good unidirectional stretching polyimide film of stability |
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| CN202010667883.7A CN111873390A (en) | 2020-07-13 | 2020-07-13 | Tensile structure is used in production of good unidirectional stretching polyimide film of stability |
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Cited By (7)
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| CN112721131A (en) * | 2020-12-28 | 2021-04-30 | 南京贝迪新材料科技股份有限公司 | Stretching device and stretching method for manufacturing optical film |
| CN112830296A (en) * | 2020-12-28 | 2021-05-25 | 太湖华强科技有限公司 | Polyimide film's coiling mechanism |
| CN113306124A (en) * | 2021-05-25 | 2021-08-27 | 湖北天泰辐照股份有限公司 | Finishing device for irradiation cross-linked polyethylene ultrathin sheet secondary processing |
| CN113968019A (en) * | 2021-11-23 | 2022-01-25 | 江苏亚宝绝缘材料股份有限公司 | Film material stretching equipment for polyimide film production and stretching method thereof |
| CN115042418A (en) * | 2022-05-25 | 2022-09-13 | 岳菡 | Plastic film extension process and equipment |
| CN116214902A (en) * | 2023-03-31 | 2023-06-06 | 浙江创富新材料有限公司 | IXPP foam cotton stretching device and stretching process thereof |
| CN113968019B (en) * | 2021-11-23 | 2024-04-26 | 福州恒美光电材料有限公司 | Film stretching equipment for polyimide film production and stretching method thereof |
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