CN114835992A

CN114835992A - Low-temperature-resistant sound-insulation PVB glass intermediate film, preparation method and device

Info

Publication number: CN114835992A
Application number: CN202210563191.7A
Authority: CN
Inventors: 廖安胜
Original assignee: Jiangsu Baianda New Materials Co ltd
Current assignee: Jiangsu Baianda New Materials Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-08-02
Anticipated expiration: 2042-05-19
Also published as: CN114835992B

Abstract

The invention relates to the technical field of intermediate film production equipment, in particular to a low-temperature-resistant sound-insulation PVB glass intermediate film, a preparation method and a device, wherein the preparation method comprises the following steps: 60-80% of polyvinyl butyral, 1-5% of sepiolite fiber powder, 1-3% of nano silicon dioxide, 1-3% of nano zinc oxide, 10-20% of plasticizer, 0.5-3% of light stabilizer, 0.5-3% of heat stabilizer, 0.5-3% of antioxidant and 0.5-3% of organosilane. The PVB intermediate film has excellent low-temperature resistance and sound insulation performance, and the PVB intermediate film does not wrinkle in the winding process, and the wound intermediate film can be flatly unfolded when being unfolded for use, so that the use is not influenced.

Description

Low-temperature-resistant sound-insulation PVB glass intermediate film, preparation method and device

Technical Field

The invention relates to the technical field of intermediate film production equipment, in particular to a low-temperature-resistant sound-insulation PVB glass intermediate film, and a preparation method and a device thereof.

Background

Since the laminated glass has been widely used, various functional types of laminated glass have been studied, and the laminated glass has safety, sound insulation, and other characteristics due to the properties of the interlayer film of the laminated glass. The intermediate polymer film not only has the advantages of strong heat resistance, strong cold resistance, high mechanical strength and the like, but also has the performances of safety, sound insulation, heat insulation, security, shock resistance, sun shading and the like.

The interlayer commonly used as safety glass is a polyvinyl butyral interlayer, an ionic interlayer, an ethylene-vinyl acetate copolymer interlayer, a polyurethane interlayer, etc., among which a PVB interlayer is most commonly used. Polyvinyl butyral, as an interlayer polymer in laminated glass, can impart good impact resistance and penetration resistance. Therefore, under the condition of external impact, the kinetic energy caused by the external impact can be absorbed and converted by the elastic deformation of the membrane, and the membrane can be adhered with glass fragments, so that the personal safety of a user is prevented from being threatened by splashing everywhere, and meanwhile, good light transmission is kept. Despite the development of laminated glass interlayers, PVB film remains an optimal bonding material for glass interlayers.

For example, chinese patent CN2021105489688 discloses a PVB intermediate film production process, which comprises the steps of putting polyvinyl butyral, a 3GO plasticizer, an antioxidant, an ultraviolet absorbent and waste materials into a pulverizer to pulverize and stir to form raw materials, wherein the waste materials comprise unqualified finished products after extrusion and recovered finished product reclaimed materials, then conveying the raw materials into a heating device through a pipeline to heat and melt to form a solution, and filtering the solution through a filter screen when conveying the solution to the extruder through a jet pump; dewatering and drying the surface of the PVB intermediate film after extrusion molding; and (4) carrying out finished product inspection on the dried finished product PVB intermediate film, rolling the finished product qualified through inspection again, packaging the finished product inside and outside, and storing the finished product in a warehouse, wherein the finished product unqualified through inspection is used as the waste material in the first step again to be crushed and stirred to form the raw material. The problems of low waste utilization rate, uneven thickness of a finished PVB intermediate film after extrusion molding, poor durability and the like can be solved, and the antioxidant effect and the ultraviolet resistance effect are good.

For example, chinese patent CN201620376596X discloses an extrusion production device for PVB intermediate film, which comprises guide wheels, supporting legs, a bearing plate, a box body, an extrusion device body, an electrostatic dust collection column, a camera, rollers, a moving trolley, a sliding rail, a telescopic link, a fan, a conveyor belt and a temperature regulator, wherein the guide wheels are conveyed on the bottom surface of the box body; the device avoids the dust to influence the production of intermediate coat, improves work efficiency, and simple structure, convenient to use does benefit to the popularization.

However, in the production process of the conventional PVB intermediate film, due to the unreasonable proportion of raw materials, the defects of insufficient low-temperature resistance and poor sound insulation of the PVB intermediate film are easily caused, the PVB intermediate film is changed from rigidity to brittleness under a low-temperature environment and is easy to break, so that the attractiveness and the performance of the laminated glass are affected, the PVB intermediate film formed by extrusion is rolled by using the conventional device, the PVB intermediate film is easy to wrinkle in the rolling process, and the rolled intermediate film cannot be flattened when being spread for use, so that the subsequent use is affected.

Disclosure of Invention

The invention aims to provide a low-temperature-resistant sound-insulating PVB glass intermediate film, a preparation method and a device, and aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a manufacturing method of a low-temperature-resistant sound-insulating PVB glass intermediate film comprises the following steps:

s1, mixing the raw materials, putting the raw materials into a crusher for crushing and stirring, moving the crushed raw materials into heating equipment for heating and melting to form a solution, wherein the heating temperature of the heating equipment is 150-;

s2, conveying the solution into an extruder through a jet pump, extruding a sheet PVB film through the extruder, preparing a cellulose solution with the concentration of 9-17 wt%, and performing electrostatic spinning on a polyimide film, wherein the electric field intensity is 20-25kV, the acceptance distance is 15-20cm, and the spinning speed is 0.2-0.5 mL/h;

s3, placing the PVB film between the two PI films, enabling the surface with the nano fibers to be in contact with the PVB film, and then tabletting by adopting a vulcanizing machine at the temperature of 120-130 ℃ to form a composite film;

s4, conveying the composite film between the feeding rollers through the conveying belt, starting the rolling motor and the rolling motor, manually enabling the composite film to pass through the spacing roller and the moving roller after bypassing the conveying rollers, and placing the composite film on the rolling tensioning mechanism after bypassing a plurality of conveying rollers after passing through the film tearing rollers;

and S5, starting the rolling adjusting mechanism and the rolling tensioning mechanism, wherein after the composite film passes through the film tearing roller, the PI films on the upper surface and the lower surface of the composite film are adhered to the double-sided adhesive layer on the film tearing roller and torn off, and the needed high-performance PVB intermediate film can be obtained.

Preferably, the cellulose solution accounts for 3-10% of the total amount of the raw materials.

A production device of a PVB glass intermediate film with low temperature resistance and sound insulation comprises a double-roller rolling device, a rolling driving device, a conveying device and a winding device;

the double-roller rolling device comprises a rolling box body, rectangular through holes are correspondingly formed in two sides of the rolling box body, a moving frame is connected in the rectangular through holes in a sliding mode, a moving roller is connected between the inner side walls of the moving frame in a rotating mode, a limiting roller is connected between the inner side walls of the rolling box body in a rotating mode, and a rolling adjusting mechanism is arranged on the end face of the moving frame;

the rolling adjusting mechanism comprises a toothed plate hydraulic rod, a sliding groove plate, a notch sleeve, a driving master gear and a transmission shaft;

the sliding groove plate is fixedly connected to the middle of the end face of the inner side of the rolling box body, the fixed end of the toothed plate hydraulic rod is fixedly connected to the bottom end face of the rolling box body, and the telescopic end of the toothed plate hydraulic rod is fixedly connected with a rack plate;

the driving main gear is fixedly sleeved in the middle of the outer edge of the transmission shaft and is meshed with the rack plate, connecting rods are respectively and fixedly connected to the inner side end of the rolling box body and the two sides of the chute plate, the two ends of the transmission shaft respectively penetrate through the connecting rods, and driving driven gears are respectively and fixedly connected to the two ends of the transmission shaft;

one end of the notch sleeve is fixedly connected with the inner side end of the rolling box body, the other end of the notch sleeve is not contacted with the side end of the moving frame, a cylindrical rack is sleeved in the notch sleeve and meshed with the driven gear, one end of the cylindrical rack is fixedly connected with the side end of the moving frame, the other end of the cylindrical rack is not contacted with the inner side end of the rolling box body, ring sleeves are respectively sleeved at the outer edges of the two ends of the cylindrical rack in a sliding mode, and the outer edges of the ring sleeves are fixedly connected with the inner wall of the notch sleeve;

the rolling driving device comprises a rolling motor, the output end of the rolling motor is fixedly connected with a cylindrical main gear, the cylindrical main gear is fixedly connected with the limiting roller through a rotating shaft, one side of the cylindrical main gear is engaged and connected with a cylindrical slave gear, and the cylindrical slave gear is fixedly connected with the movable roller through a plurality of cross universal joints connected in series;

the conveying device comprises a conveying box body, a group of feeding rollers are rotatably connected between the inner walls of the opening end of the conveying box body, a conveying roller is arranged obliquely below the feeding rollers, a group of film tearing rollers are obliquely arranged on the conveying rollers, and the conveying rollers are respectively arranged beside and obliquely below the film tearing rollers;

the winding device comprises a winding box body and a winding tensioning mechanism, wherein a winding motor is arranged in the winding box body, an output shaft of the winding motor is fixedly connected with a rotating disc, the center of the rotating disc is fixedly connected with the winding tensioning mechanism, and the other end of the winding tensioning mechanism is rotatably connected with the inner wall of the winding box body;

rolling straining device includes rolling roller and arc, rolling roller both sides outer fringe is overlapped respectively and is equipped with movable ring cover and fixed ring cover, equidistant rotation is connected with a plurality of folding rods on the periphery of movable ring cover, equidistant rotation is connected with a plurality of long connecting rods on the periphery of fixed ring cover, folding rod and long connecting rod are the middle part that corresponds setting and folding rod and pass through the pin rod and be connected with the middle part rotation of long connecting rod, the other end of folding rod and long connecting rod all is connected with the interior cambered surface rotation of arc.

Preferably, the double-roller rolling device is arranged above the conveying device, a winding device is arranged at one end of the conveying device, which is far away from the double-roller rolling device, the winding device is connected with the conveying device, and a rolling driving device is arranged at one side of the conveying device and is connected with the double-roller rolling device.

Preferably, the height of the conveying roller is slightly lower than that of the feeding roller.

Preferably, the limiting roller and the moving roller are arranged in a left-right corresponding mode.

Preferably, the rack plate is matched with a sliding groove formed in the sliding groove plate.

Preferably, the outer surface of the transmission shaft is rotatably connected with the inner surface of the connecting rod.

Preferably, the cross universal joint comprises two universal joint forks and a cross shaft, wherein the two universal joint forks are arranged in a vertical cross manner and are connected through the cross shaft.

Preferably, a tensioning hydraulic rod is fixedly connected to the side end of the rotating disc along the circumference, and the telescopic end of the tensioning hydraulic rod is fixedly connected with the movable ring sleeve.

A PVB glass intermediate film with low temperature resistance and sound insulation comprises the following raw materials in percentage by weight: 60-80% of polyvinyl butyral, 1-5% of sepiolite fiber powder, 1-3% of nano silicon dioxide, 1-3% of nano zinc oxide, 10-20% of plasticizer, 0.5-3% of light stabilizer, 0.5-3% of heat stabilizer, 0.5-3% of antioxidant and 0.5-3% of organosilane.

Preferably, the plasticizer is at least one selected from the group consisting of diisooctyl phthalate, dibutyl phthalate, diisobutyl phthalate, di (butoxyethyl) phthalate, and di (methoxyethyl) phthalate.

Preferably, the light stabilizer is selected from at least one of GW508, TMP, PMP.

Preferably, the heat stabilizer is at least one selected from epoxy compounds, phosphites and polyols.

Preferably, the antioxidant is at least one selected from antioxidant 1010, antioxidant 1076, antioxidant CA and antioxidant DLTDP.

Preferably, the organosilane is at least one selected from tetramethylsilane, methylsilicone oil and monosilane.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the cellulose nanofibers are hot-pressed into the PVB intermediate film through the vulcanizing machine, and the cellulose nanofibers introduced into the PVB intermediate film are constructed to form a net structure, so that the effects of dispersing and transferring external stress are achieved, and the PVB intermediate film still has good toughness under a low-temperature condition, so that the PVB intermediate film cannot be subjected to brittle fracture at a low temperature, and the low-temperature resistance of the PVB intermediate film is effectively improved; meanwhile, when passing through the PVB intermediate film, the sound waves are more likely to collide with the cellulose nanofibers, so that the sound energy is converted into internal energy to be consumed, and the sound insulation performance of the PVB intermediate film can be effectively improved.

According to the invention, through the arranged rolling adjusting mechanism, when the toothed plate hydraulic rod is used for telescopic operation, the driving main gear can be driven to rotate, the cylindrical rack is driven to reciprocate left and right through the matching of the transmission shaft and the driving slave gear, so that the adjustment of the distance between the limiting roller and the moving roller can be realized, and the flattening efficiency of the moving roller and the limiting roller on the composite film can be increased by reducing the distance between the limiting roller and the moving roller, the effect of preventing folds is achieved, folds cannot occur in the composite film in the conveying process, and the flatness of the composite film is improved

In the invention, through the arranged rolling tensioning mechanism, when the tensioning hydraulic rod is used for telescopic operation, the movable ring sleeve can be pushed to reciprocate along the rolling roller shaft, the arc-shaped plates are outwards unfolded under the matching of the folding rod and the long connecting rod, and the rolled intermediate film can be tightly pushed, so that the film materials are tightly attached to each other when the intermediate film is rolled, the rolling tightness of the intermediate film is increased, and the intermediate film cannot deform when being laid out in the later period.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic flow chart of the production process of the present invention;

FIG. 2 is a perspective view of the overall structure of the present invention;

FIG. 3 is a partial perspective view of the delivery device of the present invention;

FIG. 4 is a schematic view of a first angular connection of a twin roll rolling device and a roll drive device according to the present invention;

FIG. 5 is a second schematic angular connection of a two-roll rolling device and a rolling drive device according to the present invention;

FIG. 6 is an exploded view of a cross-joint according to the present invention;

FIG. 7 is a perspective view of a twin roll rolling device according to the present invention;

fig. 8 is an exploded view of part of the components of the twin roll rolling device of the present invention;

FIG. 9 is a perspective view of a film tearing roll of the present invention;

FIG. 10 is a schematic view of the connection of the turn disc and the take-up tension mechanism of the present invention;

FIG. 11 is a schematic view of a partial explosion of the take-up tensioning mechanism of the present invention;

in the figure: 1. a double-roller rolling device; 11. rolling the box body; 111. a rectangular through hole; 12. a limiting roller; 13. a moving roller; 14. a movable frame; 15. a rolling adjustment mechanism; 150. a circular ring sleeve; 151. a toothed plate hydraulic rod; 152. a rack plate; 153. a chute plate; 154. a notched sleeve; 155. a cylindrical rack; 156. driving a main gear; 157. driving the slave gear; 158. a drive shaft; 159. a connecting rod; 2. a rolling drive device; 21. rolling a motor; 211. a motor frame; 22. a gear case; 221. a cylindrical main gear; 222. a cylindrical slave gear; 23. a pivot housing; 231. a rotating shaft; 24. a cross universal joint; 241. a universal joint yoke; 242. a cross shaft; 3. a conveying device; 31. a conveying box body; 32. a feed roll; 33. a transfer roller; 34. a film tearing roller; 341. a film tearing roll shaft; 342. a hub; 343. a rubber layer; 344. a double-sided adhesive layer; 4. a winding device; 41. a winding box body; 411. a motor plate; 42. a winding motor; 421. rotating the disc; 422. tensioning the hydraulic rod; 43. a winding tensioning mechanism; 431. a winding roller shaft; 432. moving the loop; 433. fixing the loop; 434. a folding bar; 435. long connecting rod 436 and arc plate.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "mounted," "disposed," "provided," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The invention is further described below with reference to the accompanying drawings.

Example 1

s1, mixing the raw materials, putting the raw materials into a grinder for grinding and stirring, moving the raw materials into a heating device for heating and melting to form a solution, wherein the heating temperature of the heating device is 150 ℃;

s2, conveying the solution into an extruder through a jet pump, extruding a sheet-shaped PVB film through the extruder, preparing a cellulose solution with the concentration of 9 wt%, and performing electrostatic spinning on a polyimide film, wherein the electric field intensity is 20kV, the acceptance distance is 15cm, and the spinning speed is 0.2 mL/h;

s3, placing the PVB film between the two PI films, enabling the surface with the nano fibers to be in contact with the PVB film, and then pressing the PVB film by using a vulcanizing machine at the pressing temperature of 120 ℃ to form a composite film;

Wherein the raw materials in the step S1 are as follows in percentage by weight: 60% of polyvinyl butyral, 2% of sepiolite fiber powder, 3% of nano silicon dioxide, 3% of nano zinc oxide, 20% of plasticizer, 3% of light stabilizer, 3% of heat stabilizer, 3% of antioxidant and 3% of organosilane.

Wherein, the dosage of the cellulose solution in the step S2 accounts for 3% of the total amount of the raw materials.

Example 2

s1, mixing the raw materials, putting the raw materials into a grinder for grinding and stirring, moving the raw materials into a heating device for heating and melting to form a solution, wherein the heating temperature of the heating device is 160 ℃;

s2, conveying the solution into an extruder through a jet pump, extruding a sheet-shaped PVB film through the extruder, preparing a cellulose solution with the concentration of 13 wt%, and performing electrostatic spinning on a polyimide film, wherein the electric field intensity is 25kV, the acceptance distance is 15cm, and the spinning speed is 0.3 mL/h;

s3, placing the PVB film between the two PI films, enabling the surface with the nano fibers to be in contact with the PVB film, and then pressing the PVB film by using a vulcanizing machine at 125 ℃ to form a composite film;

Wherein the raw materials in the step S1 are as follows in percentage by weight: 66% of polyvinyl butyral, 2% of sepiolite fiber powder, 2% of nano silicon dioxide, 2% of nano zinc oxide, 20% of plasticizer, 2% of light stabilizer, 2% of heat stabilizer, 2% of antioxidant and 2% of organosilane.

Wherein, the dosage of the cellulose solution in the step S2 accounts for 5% of the total amount of the raw materials.

Example 3

s1, mixing the raw materials, putting the raw materials into a grinder for grinding and stirring, moving the raw materials into a heating device for heating and melting to form a solution, wherein the heating temperature of the heating device is 180 ℃;

s2, conveying the solution into an extruder through a jet pump, extruding a sheet PVB film through the extruder, preparing a cellulose solution with the concentration of 17 wt%, and performing electrostatic spinning on a polyimide film, wherein the electric field strength is 25kV, the acceptance distance is 20cm, and the spinning speed is 0.5 mL/h;

s3, placing the PVB film between the two PI films, enabling the surface with the nano fibers to be in contact with the PVB film, and then pressing the PVB film by using a vulcanizing machine at the pressing temperature of 130 ℃ to form a composite film;

Wherein the raw materials in the step S1 are as follows in percentage by weight: 80% of polyvinyl butyral, 4% of sepiolite fiber powder, 1% of nano silicon dioxide, 1% of nano zinc oxide, 10% of plasticizer, 1% of light stabilizer, 1% of heat stabilizer, 1% of antioxidant and 1% of organosilane.

Wherein, the dosage of the cellulose solution in the step S2 accounts for 10% of the total amount of the raw materials.

Example 4

Referring to fig. 2, an embodiment of the present invention: a production device of a PVB glass intermediate film with low temperature resistance and sound insulation comprises processing equipment from S4 to S5, and comprises a double-roller rolling device 1, a rolling driving device 2, a conveying device 3 and a winding device 4;

a double-roller rolling device 1 is arranged above the conveying device 3, a winding device 4 is arranged on the conveying device 3 and at one end far away from the double-roller rolling device 1, the winding device 4 is connected with the conveying device 3, a rolling driving device 2 is arranged on one side of the conveying device 3, and the rolling driving device 2 is connected with the double-roller rolling device 1 and is used as a driving mechanism of the double-roller rolling device 1;

the winding device 4 comprises a winding box body 41 and a winding tensioning mechanism 43, a motor plate 411 is fixedly connected to the inner wall of the winding box body 41, a winding motor 42 is arranged on the motor plate 411, an output shaft of the winding motor 42 is fixedly connected with a rotating disc 421, the center of the rotating disc 421 is fixedly connected with the winding tensioning mechanism 43, and the other end of the winding tensioning mechanism 43 is rotatably connected with the inner wall of the winding box body 41;

referring to fig. 3, the conveying device 3 includes a conveying box 31, a set of feed rollers 32 is rotatably connected between inner walls of an opening end of the conveying box 31, the feed rollers 32 are distributed up and down, a conveying roller 33 is arranged obliquely below the feed rollers 32, the distance height of the conveying roller 33 is slightly lower than that of the feed rollers 32, a set of film tearing rollers 34 is arranged obliquely on the conveying roller 33, and the conveying rollers 33 are respectively arranged laterally and obliquely below the film tearing rollers 34; after passing through the feed rollers 32, the composite film firstly bypasses the transmission rollers 33 downwards, then passes through the space between the limiting roller 12 and the moving roller 13 upwards, then passes through the space between the film tearing rollers 34 downwards, and then sequentially bypasses the transmission rollers 33 downwards and upwards and is attached to the winding tension mechanism 43;

referring to fig. 4, 5 and 7, the double-roller rolling device 1 includes a rolling box 11, rectangular through holes 111 are correspondingly formed on two sides of the rolling box 11, a moving frame 14 is slidably connected in the rectangular through holes 111, a moving roller 13 is rotatably connected between the inner side walls of the moving frame 14, a limiting roller 12 is rotatably connected between the inner side walls of the rolling box 11, the limiting roller 12 and the moving roller 13 are correspondingly arranged in the left-right direction, so that the outer edge surface of the moving roller 13 can be in direct contact with the outer edge surface of the limiting roller 12 after being adjusted and moved, a rolling adjusting mechanism 15 is arranged on the end surface of the moving frame 14, and the other end of the rolling adjusting mechanism 15 is fixedly connected with the inner side end of the rolling box 11;

the rolling driving device 2 comprises a gear box 22 and a rotating shaft box 23, the rotating shaft box 23 is fixedly connected to the side end face of the rolling box body 11, one end of the rotating shaft box 23 far away from the rolling box body 11 is fixedly connected with the gear box 22, a cylindrical main gear 221 and a cylindrical driven gear 222 which are distributed left and right are arranged in the gear box 22, the cylindrical main gear 221 and the cylindrical driven gear 222 are meshed and connected, one end of the cylindrical driven gear 222 is rotatably connected with the inner wall of the gear box 22, the other end of the cylindrical driven gear is fixedly connected with a plurality of cross universal joints 24 which are connected in series, the other ends of the plurality of cross universal joints 24 which are connected in series sequentially penetrate through the side wall of the gear box 22 and the side wall of the moving frame 14 and are fixedly connected with the moving roller 13, a motor frame 211 is fixedly connected to one side of the gear box 22 far away from the rotating shaft box 23, a rolling motor 21 is arranged in the motor frame 211, and an output shaft of the rolling motor 21 penetrates through the side wall of the gear box 22 and extends into the gear box 22, an output shaft of the rolling motor 21 is fixedly connected with one end of the cylindrical main gear 221, the other end of the cylindrical main gear 221 is fixedly connected with a rotating shaft 231 (not shown in the figure), and the rotating shaft 231 sequentially penetrates through the side wall of the gear box 22, the rotating shaft box 23 and the side wall of the rolling box body 11 and is fixedly connected with the limiting roller 12; when the rolling motor 21 is started, the cylindrical main gear 221 and the cylindrical slave gear 222 are driven to synchronously rotate, the cylindrical main gear 221 drives the limit roller 12 to rotate through the transmission shaft 231, and the cylindrical slave gear 222 drives the movable roller 13 to rotate through the plurality of cross universal joints 24 connected in series, so that the limit roller 12 and the movable roller 13 synchronously rotate under the action of the rolling motor 21;

referring to fig. 6, the universal joint cross 24 includes two universal joint forks 241 and a cross 242, the two universal joint forks 241 are arranged perpendicularly and are connected through the cross 242; the cylindrical slave gear 222 and the moving roller 13 are connected through a plurality of cross universal joints 24 connected in series, and the arranged cross universal joints 24 can realize variable-angle power transmission, so that the moving roller 13 can still rotate under the driving of the rolling motor 21 after position change under the action of the cross universal joints 24;

referring to fig. 7, the rolling adjustment mechanism 15 includes a toothed plate hydraulic rod 151, a sliding groove plate 153, a notch sleeve 154, a driving main gear 156 and a transmission shaft 158, the sliding groove plate 153 is fixedly connected to the middle of the inner end surface of the rolling box 11, the fixed end of the toothed plate hydraulic rod 151 is fixedly connected to the bottom end surface of the rolling box 11, the telescopic end of the toothed plate hydraulic rod is fixedly connected to a rack plate 152, the rack plate 152 is adapted to a sliding groove formed on the sliding groove plate 153, so that the rack plate 152 can reciprocate up and down along the sliding groove on the sliding groove plate 153, the driving main gear 156 is fixedly connected to the middle of the outer edge of the transmission shaft 158, the driving main gear 156 is meshed with the rack plate 152, connecting rods 159 are respectively and fixedly connected to the inner end of the rolling box 11 and located at two sides of the sliding groove plate 153, two ends of the transmission shaft 158 respectively pass through the connecting rods 159, and two ends of the transmission shaft 158 are respectively fixedly connected to a driving slave gear 157, the outer surface of the transmission shaft 158 is rotatably connected to the inner surface of the connecting rods 159, the connecting rod 159 is arranged to stabilize the transmission shaft 158, so that the transmission shaft 158 cannot shake during rotation;

referring to fig. 8, one end of the notched sleeve 154 is fixedly connected to the inner side end of the rolling box 11, the other end of the notched sleeve is not in contact with the side end of the movable frame 14, a cylindrical rack 155 is sleeved in the notched sleeve 154, the cylindrical rack 155 is engaged with the driven slave gear 157, one end of the cylindrical rack 155 is fixedly connected to the side end of the movable frame 14, the other end of the cylindrical rack is not in contact with the inner side end of the rolling box 11, the outer edges of the two ends of the cylindrical rack 155 are respectively slidably sleeved with a circular sleeve 150, and the outer edge of the circular sleeve 150 is fixedly connected to the inner wall of the notched sleeve 154; the driven gear 157 is driven by the driving main gear 156 to synchronously rotate, when the driven gear 157 rotates, the cylindrical rack 155 meshed and connected with the driven gear 157 is driven to reciprocate left and right, so that the movable frame 14 can be driven to move left and right, the adjustment of the distance between the movable roller 13 and the limiting roller 12 can be realized, the distance between the movable roller 13 and the limiting roller 12 is reduced by adjusting the distance between the movable roller 13 and the limiting roller 12, the flattening efficiency of the movable roller 13 and the limiting roller 12 on the composite film is increased, and the anti-wrinkle effect is achieved;

referring to fig. 10 and 11, a tensioning hydraulic rod 422 is fixedly connected to a side end of the rotating disc 421 along a circumference, a telescopic end of the tensioning hydraulic rod 422 is fixedly connected to the winding tensioning mechanism 43, the winding tensioning mechanism 43 includes a winding roller shaft 431 and an arc plate 436, one end of the winding roller shaft 431 is fixedly connected to a center of the rotating disc 421, and the other end is rotatably connected to an inner wall of the winding box 41;

a movable ring sleeve 432 is slidably sleeved on one side of the outer edge of the rolling roller shaft 431, which is close to the rotating disc 421, a fixed ring sleeve 433 is fixedly sleeved on the other side of the outer edge of the rolling roller shaft 431, a plurality of folding rods 434 are rotationally connected on the circumferential surface of the movable ring sleeve 432 at equal intervals, a plurality of long connecting rods 435 are rotationally connected on the circumferential surface of the fixed ring sleeve 433 at equal intervals, the folding rods 434 and the long connecting rods 435 are correspondingly arranged, the middle parts of the folding rods 434 are rotationally connected with the middle parts of the long connecting rods 435 through pin rods, the other ends of the folding rods 434 are rotationally connected with the inner cambered surface of the arc plate 436, and the other ends of the long connecting rods 435 are also rotationally connected with the inner cambered surface of the arc plate 436; during the telescopic operation of the tensioning hydraulic rod 422, the moving collar 432 reciprocates along the take-up roller shaft 431 and, in cooperation with the folding rod 434 and the long link 435, opens and closes the arc plate 436.

The working principle is as follows: after the composite film passes through the space between the feeding rollers 32, the rolling motor 21 and the rolling motor 42 are started, the composite film is manually wound around the transmission roller 33 and then passes through the space between the limiting roller 12 and the moving roller 13, when the composite film passes through the limiting roller 12 and the moving roller 13, whether the rolling adjusting mechanism 15 is started or not is determined according to the leveling condition of the composite film, when the composite film is wrinkled, the toothed plate hydraulic rod 151 is started to push the rack plate 152 to move upwards, and at the moment, the driving main gear 156 engaged with the rack plate 152 rotates counterclockwise, and at the same time, the driving sub-gear 157 rotates counterclockwise in synchronization, and the cylindrical rack 155 is moved in a direction to approach the check roller 12, thereby driving the moving frame 14 to synchronously move in the same direction, so that the distance between the moving roller 13 and the limit roller 12 is reduced, therefore, the flattening efficiency of the movable roller 13 and the limiting roller 12 on the composite film is increased, and the effect of preventing wrinkles is achieved, so that the composite film is not wrinkled; the flattened composite film passes through the film tearing roller 34, after the composite film passes through the film tearing roller 34, the PI film on the upper surface and the lower surface of the composite film is torn off, so that a PVB intermediate film is obtained, the PVB intermediate film is placed on the rolling tensioning mechanism 43 after bypassing the plurality of transmission rollers 33, the PVB intermediate film is in the rolling process, whether the rolling tensioning mechanism 43 is started or not is determined according to the spreading condition of the PVB intermediate film, when the PVB intermediate film is spread and deformed, the tensioning hydraulic rod 422 is started, the movable ring sleeve 432 is pushed to move to one side close to the fixed ring sleeve 433, under the matching of the folding rod 434 and the long connecting rod 435, the arc plate 436 is outwards spread, the rolled PVB intermediate film can be tightly pushed, when the PVB intermediate film is rolled, the film materials are tightly attached, the rolling tightness of the PVB intermediate film is increased, and the PVB intermediate film cannot be deformed in the later period of spreading.

Example 5

On the basis of embodiment 4, as shown in fig. 9, the film tearing roller 34 includes a film tearing roller shaft 341, a hub 342 and a rubber layer 343, the rubber layer 343 covers the outer surface of the hub 342, the double-sided adhesive layer 344 covers the outer surface of the rubber layer 343, and the structural strength of the film tearing roller 34 is improved by the provided hub 342, so that the double-sided adhesive layer 344 can be tightly pressed against the composite film by the film tearing roller 34, and the firmness of the composite film bonded by the double-sided adhesive layer 344 can be ensured to meet the standard of film tearing;

the double-sided adhesive layer 344 comprises an inner adhesive layer and an outer adhesive layer, the inner adhesive layer is adhered to the surface of the rubber layer 343, and the viscosity of the inner adhesive layer is greater than that of the outer adhesive layer adhered to the surface of the composite film; therefore, the film tearing roller 34 is attached to the double-sided adhesive layer 344 more tightly, and the situation that the double-sided adhesive layer 344 is separated from the film tearing roller 34 and adheres to a composite film is avoided, so that the film tearing effect is improved;

in addition, the rubber of the rubber layer 343 is hydrophilic rubber, which has excellent adhesiveness, the double-sided adhesive layer 344 covers the outer surface of the rubber layer 343, and the double-sided adhesive layer 344 is adhered to the rubber layer 343 more tightly, so that the situation that the double-sided adhesive layer 344 is adhered to the composite film and the double-sided adhesive layer 344 is separated from the film tearing roller 34 when the film tearing component moves is reduced;

in addition, the inner rubber layer is silica gel, the outer rubber layer is acrylic rubber, the silica gel and the rubber layer 343 can be directly attached, the adhesive property is good, and the rubber layer 343 does not need to be processed; the acrylic surface can be well adhered with the composite film, so that the use is convenient, and the adhesion effect is better; of course, according to actual conditions, the inner adhesive layer and the outer adhesive layer may also be the double-sided adhesive layer 344 made of other materials, and it is only necessary to ensure that the viscosity of the inner adhesive layer of the double-sided adhesive layer 344 adhered to the surface of the film tearing roller 34 is greater than the viscosity of the outer adhesive layer adhered to the surface of the composite film.

The working principle is as follows: the complex film is when passing and tearing membrane roller 34, two-sided glue film 344 and complex film contact, and bond with the PI membrane on complex film surface, thereby tear the PI membrane, and because the viscosity that the inner adhesive layer of two-sided glue film 344 adhered to the gyro wheel main part surface sets up to be greater than the viscosity that outer glue film adhered to the complex film surface, can make tearing membrane roller 34 and two-sided glue film 344 laminating inseparabler, avoid two-sided glue film 344 and tear the separation of membrane roller 34 and the condition emergence of adhesion on the complex film, make tearing membrane roller 34 can tear the PI membrane of surface about the complex film with high efficiency, thereby obtain required PVB intermediate coat.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A PVB glass intermediate film with low temperature resistance and sound insulation is prepared by a preparation device, and is characterized in that the preparation method comprises the following steps:

s4, conveying the composite film between the feed rollers (32) through a conveyor belt, starting a rolling motor (21) and a rolling motor (42), manually enabling the composite film to bypass the transmission rollers (33), pass through a position limiting roller (12) and a moving roller (13), pass through the film tearing roller (34), bypass a plurality of transmission rollers (33) and then be placed on a rolling tensioning mechanism (43);

and S5, starting the rolling adjusting mechanism (15) and the rolling tensioning mechanism (43), and after the composite film passes through the film tearing roller (34), adhering and tearing off the PI films on the upper and lower surfaces of the composite film by the double-sided adhesive layer (344) on the film tearing roller (34) to obtain the required high-performance PVB intermediate film.

2. The PVB glass intermediate film that resists sound insulation at low temperatures of claim 1, wherein the cellulose solution is present in an amount of 3-10% of the total amount of the starting materials.

3. The apparatus for manufacturing a low-temperature sound-proof PVB glass intermediate film according to claim 1, wherein the apparatus is an apparatus of steps S4-S5, wherein: comprises a double-roller rolling device (1), a rolling driving device (2), a conveying device (3) and a rolling device (4).