CN114835992B

CN114835992B - Low-temperature-resistant sound-insulation PVB glass intermediate film, preparation method and device

Info

Publication number: CN114835992B
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: 2023-08-11
Anticipated expiration: 2042-05-19
Also published as: CN114835992A

Abstract

The application 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 of: 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 can not be wrinkled in the rolling process, and the rolled intermediate film can be unfolded smoothly when being spread for use, so that the use is not affected.

Description

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

Technical Field

The application 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.

Background

Since laminated glass has been widely used, various functional types of laminated glass have been studied, and the characteristics of the laminated glass such as safety and sound insulation are attributed to the properties of the interlayer film of the laminated glass. The intermediate polymer film has the advantages of high heat resistance, high cold resistance, high mechanical strength and the like, and also has the performances of safety, sound insulation, heat insulation, security, shock resistance, sun shading and the like.

Interlayers commonly used as safety glass are polyvinyl butyral interlayer, ionic interlayer, ethylene-vinyl acetate copolymer interlayer, polyurethane interlayer, and the like, with PVB interlayer being most commonly used. Polyvinyl butyral is used as an intermediate polymer for laminated glass, and can impart good impact resistance and penetration resistance thereto. Therefore, under the condition of external impact, kinetic energy caused by the external impact can be absorbed and converted by the elastic deformation of the diaphragm, and the diaphragm can be adhered with glass fragments, so that the threat to the personal safety of a user caused by splashing everywhere is avoided, and meanwhile, good light transmittance is maintained. Despite the continued development of laminated glass interlayers, PVB film remains an optimal adhesive material in the glass interlayer.

For example, chinese patent CN2021105489688 discloses a process for producing a PVB interlayer, which comprises the steps of placing polyvinyl butyral, 3GO plasticizer, antioxidant, ultraviolet absorbent and waste material into a pulverizer, pulverizing and stirring to form raw materials, wherein the waste material comprises an unqualified product after extrusion and a recovered product recovery material, then conveying the raw materials into a heating device through a pipeline to be heated and melted to form a solution, and filtering the solution through a filter screen when conveying the solution to an extruder through a jet pump; after extrusion molding, dewatering and drying the surface of the PVB intermediate film; and (3) carrying out finished product inspection on the dried finished PVB intermediate film, carrying out rolling and inner and outer packaging on the finished product which is qualified in inspection, warehousing and storing the finished product which is unqualified in inspection, and carrying out crushing and stirring on the finished product which is unqualified in inspection again as waste in the step one to form a raw material. Can solve the problems of low waste utilization rate, uneven thickness and poor durability of the finished PVB intermediate film after extrusion molding, and has good oxidation resistance and ultraviolet resistance.

For example, chinese patent CN201620376596X discloses an extrusion production device for PVB intermediate film, which comprises a guide wheel, a supporting leg, a pressure bearing plate, a box body, an extrusion device body, an electrostatic dust removal column, a camera, a roller, a travelling car, a sliding rail, a telescopic link, a fan, a conveyor belt and a temperature regulator, wherein the bottom surface of the box body is provided with the extrusion device body, one side of the extrusion device body is provided with the conveyor belt, the pressure bearing plate is arranged below the conveyor belt, the pressure bearing plate is fixed with the bottom end of the box body through the supporting leg, the temperature regulator is arranged in the box body, a thermometer is installed on the box body, the inner wall of the top end of the box body is provided with the sliding rail, the travelling car is provided with the sliding rail, the telescopic link is installed on the travelling car, the bottom end of the telescopic link is provided with the roller, the inner wall of the box body is provided with the electrostatic dust removal column, the outer wall of the box body is provided with a timer, the inner wall of the top end of the box body is provided with the camera, and the box body is internally provided with the fan; the device avoids the dust to influence the production of intermediate film, improves work efficiency, simple structure, convenient to use does benefit to the popularization.

However, in the production process of the existing PVB intermediate film, due to 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 in a low-temperature environment and is easy to crack, so that the attractiveness and performance of laminated glass are affected, the existing device is used for rolling the PVB intermediate film formed by extrusion, the PVB intermediate film is easy to wrinkle in the rolling process, and the rolled intermediate film is not paved when being unfolded, so that the subsequent use is affected.

Disclosure of Invention

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

In order to achieve the above purpose, the present application provides the following technical solutions:

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

s1, placing the raw materials in a pulverizer after proportioning, pulverizing and stirring, and moving the raw materials into heating equipment for heating and melting to form a solution, wherein the heating temperature of the heating equipment is 150-180 ℃;

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

s3, placing the PVB film between two PI films, enabling one surface with nano fibers to be in contact with the PVB film, and tabletting by a vulcanizing machine at 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 bypassing the composite film around the conveying rollers, passing between the limiting rollers and the moving rollers, bypassing the conveying rollers, and then putting the composite film on the rolling tensioning mechanism;

s5, starting the rolling adjusting mechanism and the rolling tensioning mechanism, and after the composite film passes through the film tearing roller, adhering and tearing off the PI film on the upper surface and the lower surface of the composite film by the double-sided adhesive layer on the film tearing roller, so that the required high-performance PVB intermediate film can be obtained.

Preferably, the cellulose solution is used in an amount of 3-10% of the total amount of the raw materials.

The production device of the PVB glass intermediate film resistant to low temperature 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 movable frame is connected in the rectangular through holes in a sliding mode, a movable roller is connected between the inner side walls of the movable frame in a rotating mode, a limit 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 movable frame;

the rolling adjusting mechanism comprises a toothed plate hydraulic rod, a chute plate, a notch sleeve, a driving main gear and a transmission shaft;

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

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

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

the rolling driving device comprises a rolling motor, wherein the output end of the rolling motor is fixedly connected with a cylindrical main gear, the cylindrical main gear is fixedly connected with a limit roller through a rotating shaft, one side of the cylindrical main gear is connected with a cylindrical slave gear in a meshed manner, and the cylindrical slave gear is fixedly connected with a movable roller through a plurality of cross universal joints which are 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 ends of the conveying box body, conveying rollers are arranged below the feeding rollers in an inclined mode, a group of film tearing rollers are arranged on the conveying rollers in an inclined mode, and conveying rollers are respectively arranged beside and below the film tearing rollers;

the winding device comprises a winding box body and a winding tensioning mechanism, 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;

the winding tensioning mechanism comprises a winding roller shaft and an arc plate, a movable ring sleeve and a fixed ring sleeve are sleeved on the outer edges of two sides of the winding roller shaft respectively, a plurality of folding rods are connected to the circumferential surface of the movable ring sleeve in an equidistant rotating mode, a plurality of long connecting rods are connected to the circumferential surface of the fixed ring sleeve in an equidistant rotating mode, the folding rods and the long connecting rods are correspondingly arranged, the middle portions of the folding rods are connected with the middle portions of the long connecting rods in a rotating mode through pin rods, and the other ends of the folding rods and the long connecting rods are connected with the inner arc surface of the arc plate in a rotating mode.

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

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

Preferably, the limit roller and the moving roller are correspondingly arranged left and right.

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 rotationally 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 vertically crossed and connected through the cross shaft.

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

The low-temperature-resistant sound-insulation PVB glass intermediate film 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 at least one selected from GW508, TMP and PMP.

Preferably, the heat stabilizer is at least one selected from the group consisting of 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, methyl silicone oil and monosilane.

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

1. according to the application, the cellulose nano-fibers are hot-pressed into the PVB intermediate film through the vulcanizing machine, and the cellulose nano-structures introduced into the PVB intermediate film form a net structure, so that the PVB intermediate film still has good toughness under the low-temperature condition under the action of dispersing and transmitting external stress, so that the PVB intermediate film cannot be subjected to brittle fracture at low temperature, and the low-temperature resistance of the PVB intermediate film is effectively improved; meanwhile, when the sound waves pass through the PVB intermediate film, the sound waves are easier to collide with cellulose nanofibers, so that the sound energy is converted into energy which is consumed, and the sound insulation performance of the PVB intermediate film can be effectively improved.

2. According to the application, the roller adjusting mechanism is arranged, when the toothed plate hydraulic rod stretches, the driving main gear can be driven to rotate, and the cylindrical rack is driven to reciprocate left and right through the cooperation of the transmission shaft and the driving auxiliary gear, so that the spacing between the limit roller and the movable roller can be adjusted, the flattening efficiency of the movable roller and the limit roller on the composite film can be increased by reducing the spacing between the limit roller and the movable roller, the anti-wrinkling effect is achieved, the composite film is prevented from wrinkling in the conveying process, and the flatness of the composite film is improved

3. According to the application, through the winding tensioning mechanism, when the hydraulic rod is tensioned to carry out telescopic operation, the movable ring sleeve can be pushed to reciprocate along the winding roller shaft, the arc plate is outwards stretched under the cooperation of the folding rod and the long connecting rod, the wound intermediate film can be tightly propped up, when the intermediate film is wound, the film materials are tightly attached, the winding tightness of the intermediate film is increased, and therefore, the intermediate film cannot deform in the later stage of unwinding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a production process flow of the present application;

FIG. 2 is a perspective view of the whole structure of the present application;

FIG. 3 is a partial perspective view of the conveyor of the present application;

FIG. 4 is a schematic view of a first angular connection of a two-roll rolling device and a rolling driving device according to the present application;

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

FIG. 6 is an exploded view of the cross joint of the present application;

FIG. 7 is a schematic perspective view of a twin roll rolling apparatus according to the present application;

FIG. 8 is an exploded view of a portion of the components of the twin roll rolling apparatus of the present application;

FIG. 9 is a schematic perspective view of a film tearing roll according to the present application;

FIG. 10 is a schematic diagram of the connection of a rotating disc and a winding tensioning mechanism in the present application;

FIG. 11 is a schematic view of a partial explosion of the winding tensioning mechanism of the present application;

in the figure: 1. a twin roll rolling device; 11. rolling the box body; 111. rectangular through holes; 12. a limit roller; 13. a moving roller; 14. a moving rack; 15. a roll adjustment mechanism; 150. a circular ring sleeve; 151. a toothed plate hydraulic rod; 152. rack plate; 153. a chute plate; 154. a notched sleeve; 155. a cylindrical rack; 156. driving a main gear; 157. a drive slave gear; 158. a transmission shaft; 159. a connecting rod; 2. a roll-in driving device; 21. a roll-in motor; 211. a motor frame; 22. a gear box; 221. a cylindrical main gear; 222. a cylindrical slave gear; 23. a spindle box; 231. a rotating shaft; 24. a cross universal joint; 241. a universal joint fork; 242. a cross shaft; 3. a conveying device; 31. conveying the box body; 32. a feed roller; 33. a conveying 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. a rotating disc; 422. tensioning a hydraulic rod; 43. a winding tensioning mechanism; 431. a winding roll shaft; 432. moving the ring sleeve; 433. a fixed ring sleeve; 434. a folding bar; 435. long connecting rod, 436, arc.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations 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 rear are used in the embodiments of the present application) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly. Furthermore, the terms "mounted," "disposed," "connected," and the like are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may 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 meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

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

Example 1

s1, placing the raw materials in a pulverizer after proportioning, pulverizing and stirring, and moving the 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 to an extruder through a jet pump, extruding a sheet PVB film through the extruder, preparing a cellulose solution with the concentration of 9wt%, and carrying out electrostatic spinning on the polyimide film, wherein the electric field strength is 20kV, the receiving distance is 15cm, and the spinning speed is 0.2mL/h;

s3, placing the PVB film between two PI films, enabling one surface with nano fibers to be in contact with the PVB film, and tabletting by a vulcanizing machine at 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 percent of the total amount of the raw materials.

Example 2

s1, placing the raw materials in a pulverizer after proportioning, pulverizing and stirring, and moving the raw materials into heating equipment for heating and melting to form a solution, wherein the heating temperature of the heating equipment is 160 ℃;

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 13wt%, and carrying out electrostatic spinning on the polyimide film, wherein the electric field strength is 25kV, the receiving distance is 15cm, and the spinning speed is 0.3mL/h;

s3, placing the PVB film between two PI films, enabling one surface with nano fibers to be in contact with the PVB film, and tabletting by 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, placing the raw materials in a pulverizer after proportioning, pulverizing and stirring, and moving the raw materials into heating equipment for heating and melting to form a solution, wherein the heating temperature of the heating equipment is 180 ℃;

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

s3, placing the PVB film between two PI films, enabling one surface with nano fibers to be in contact with the PVB film, and tabletting by a vulcanizing machine at the 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 raw material.

Example 4

Referring to fig. 2, an embodiment of the present application is provided: the device comprises a double-roller rolling device 1, a rolling driving device 2, a conveying device 3 and a winding device 4, wherein the processing equipment is the device of the steps S4-S5;

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 41 and a winding tensioning mechanism 43, wherein a motor plate 411 is fixedly connected to the inner wall of the winding box 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 41;

referring to fig. 3, the conveying device 3 includes a conveying box 31, a group of feeding rollers 32 are rotatably connected between inner walls of an opening end of the conveying box 31, the feeding rollers 32 are vertically distributed, a conveying roller 33 is arranged below the feeding rollers 32 obliquely, the ground height of the conveying roller 33 is slightly lower than that of the feeding rollers 32, a group of film tearing rollers 34 are arranged above the conveying roller 33 obliquely, and the conveying rollers 33 are respectively arranged beside and obliquely below the film tearing rollers 34; after passing through the feeding rollers 32, the composite film bypasses the transmission rollers 33 downwards, passes through the space between the limit roller 12 and the moving roller 13 upwards, passes through the film tearing rollers 34 downwards, bypasses the transmission rollers 33 downwards and upwards in sequence, and is attached to the winding tensioning mechanism 43;

referring to fig. 4, 5 and 7, the twin-roll rolling device 1 comprises a rolling box 11, rectangular through holes 111 are correspondingly formed in two sides of the rolling box 11, a movable frame 14 is slidably connected in the rectangular through holes 111, a movable roll 13 is rotatably connected between inner side walls of the movable frame 14, a limit roll 12 is rotatably connected between the inner side walls of the rolling box 11, the limit roll 12 and the movable roll 13 are correspondingly arranged left and right, so that after the movable roll 13 is adjusted and moved, the outer edge surface of the movable roll 13 can be in opposite contact with the outer edge surface of the limit roll 12, a rolling adjusting mechanism 15 is arranged on the end surface of the movable 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, wherein the rotating shaft box 23 is fixedly connected to the side end surface of a rolling box 11, one end, far away from the rolling box 11, of the rotating shaft box 23 is fixedly connected with the gear box 22, a left-right cylindrical main gear 221 and a cylindrical secondary gear 222 are arranged in the gear box 22, the cylindrical main gear 221 and the cylindrical secondary gear 222 are in meshed connection, one end of the cylindrical secondary gear 222 is rotationally connected with the inner wall of the gear box 22, the other end is fixedly connected with a plurality of cross universal joints 24 which are mutually connected in series, the other ends of the cross universal joints 24 which are mutually connected in series sequentially penetrate through the side wall of the gear box 22 and the side wall of a movable frame 14 and are fixedly connected with a movable roller 13, one side, far away from the rotating shaft box 23, of the gear box 22 is fixedly connected with a motor frame 211, a rolling motor 21 is arranged in the motor frame 211, 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, the 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 23 and the side wall of the rolling box 11 and is fixedly connected with the movable roller 12; when the rolling motor 21 is started, the cylindrical main gear 221 and the cylindrical auxiliary 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 auxiliary gear 222 drives the movable roller 13 to rotate through a 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 cross joint 24 includes two yoke arms 241 and a cross 242, the two yoke arms 241 being disposed to vertically cross each other and connected by the cross 242; the cylinder slave gear 222 is connected with the movable roller 13 through a plurality of cross universal joints 24 which are connected in series, the arranged cross universal joints 24 can realize variable-angle power transmission, so that the movable roller 13 can still rotate under the drive of the rolling motor 21 after the position of the movable roller 13 is changed 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 chute plate 153, a notch sleeve 154, a driving main gear 156 and a transmission shaft 158, the chute plate 153 is fixedly connected to the middle part of the inner side 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 with a rack plate 152, the rack plate 152 is matched with a chute formed on the chute plate 153, so that the rack plate 152 can reciprocate up and down along the chute on the chute plate 153, the driving main gear 156 is fixedly sleeved on the middle part 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 fixedly connected to the inner side end of the rolling box 11 and are respectively and fixedly connected to two ends of the transmission shaft 158 respectively pass through the connecting rods 159, two ends of the transmission shaft 158 are fixedly connected with driving auxiliary gears 157, the outer surface of the transmission shaft 158 is rotationally connected with the inner surface of the connecting rods 159, and the arranged connecting rods 159 play a role of stabilizing the transmission shaft 158, so that the transmission shaft 158 does not shake during rotation;

referring to fig. 8, one end of a notch sleeve 154 is fixedly connected with the inner side end of the rolling box 11, the other end of the notch sleeve is not contacted with the side end of the movable frame 14, a cylindrical rack 155 is sleeved in the notch sleeve 154, the cylindrical rack 155 is in meshed connection with a driving slave gear 157, one end of the cylindrical rack 155 is fixedly connected with the side end of the movable frame 14, the other end of the cylindrical rack is not contacted with the inner side end of the rolling box 11, circular ring sleeves 150 are respectively sleeved on the outer edges of the two ends of the cylindrical rack 155 in a sliding manner, and the outer edges of the circular ring sleeves 150 are fixedly connected with the inner wall of the notch sleeve 154; the driven slave gear 157 is driven by the driven master gear 156 to synchronously rotate, and the driven slave gear 157 drives the cylindrical rack 155 which is meshed with the driven slave gear 157 to reciprocate left and right when rotating, so that the movable frame 14 can be driven to move left and right, the spacing between the movable roller 13 and the limit roller 12 can be adjusted, the spacing between the movable roller 13 and the limit roller 12 is reduced by adjusting the spacing between the movable roller 13 and the limit roller 12, the flattening efficiency of the movable roller 13 and the limit roller 12 on a composite film is increased, and the effect of preventing wrinkles is achieved;

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

a movable ring sleeve 432 is sleeved on the outer edge of the winding roll shaft 431 and close to one side of the rotating disc 421 in a sliding manner, a fixed ring sleeve 433 is fixedly sleeved on the other side of the outer edge of the winding roll shaft 431, a plurality of folding rods 434 are connected to the circumferential surface of the movable ring sleeve 432 in an equidistant rotating manner, a plurality of long connecting rods 435 are connected to the circumferential surface of the fixed ring sleeve 433 in an equidistant rotating manner, the folding rods 434 and the long connecting rods 435 are correspondingly arranged, the middle part of the folding rods 434 is connected with the middle part of the long connecting rods 435 in a rotating manner through pin rods, the other end of the folding rods 434 are connected with the intrados of the arc plate 436 in a rotating manner, and the other end of the long connecting rods 435 are also connected with the intrados of the arc plate 436 in a rotating manner; during the telescoping operation of the tensioning hydraulic lever 422, the movable ring 432 reciprocates along the winding roller 431 and cooperates with the folding lever 434 and the long link 435 to open or close the arc 436.

Working principle: after the composite film passes through the space between the feeding rollers 32, the rolling motor 21 and the winding motor 42 are started, the composite film passes through the space between the limiting roller 12 and the moving roller 13 after bypassing the transmission roller 33, 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 flattening condition of the composite film, when the composite film is wrinkled, the toothed plate hydraulic rod 151 is started, the toothed plate 152 is pushed to move upwards, at the moment, the driving main gear 156 meshed with the toothed plate 152 rotates anticlockwise, and meanwhile, the driving slave gear 157 synchronously rotates anticlockwise, the cylindrical toothed rack 155 is driven to move towards the direction close to the limiting roller 12, so that the moving frame 14 is driven to synchronously move in the same direction, the space between the moving roller 13 and the limiting roller 12 is reduced, the flattening efficiency of the moving roller 13 and the limiting roller 12 on the composite film is increased, the anti-wrinkling effect is achieved, and the composite film is prevented from wrinkling; the composite film after flattening passes from dyestripping roller 34, the composite film is after passing dyestripping roller 34, the PI membrane of composite film upper and lower surface is torn, thereby obtain PVB intermediate film, walk around a plurality of transmission rollers 33 with PVB intermediate film and put on the tensioning mechanism 43 of rolling, PVB intermediate film is in the rolling in-process, whether start the tensioning mechanism 43 of rolling according to PVB intermediate film condition of spreading, when the PVB intermediate film appears spreading deformation phenomenon, start tensioning hydraulic stem 422, promote and remove ring cover 432 and move to the one side that is close to solid fixed ring cover 433, under folding stem 434 and long connecting rod 435's cooperation, make arc 436 outwards strut, can be with PVB intermediate film top tightly of rolling, closely laminate between the membrane material, increased PVB intermediate film's rolling degree, thereby make PVB intermediate film can not take place the deformation when later stage spreads.

Example 5

On the basis of embodiment 4, as shown in fig. 9, the film tearing roller 34 comprises a film tearing roller shaft 341, a hub 342 and a rubber layer 343, wherein the outer surface of the hub 342 is covered by the rubber layer 343, the outer surface of the rubber layer 343 is covered by a double-sided adhesive layer 344, the arranged hub 342 improves the structural strength of the film tearing roller 34, so that the film tearing roller 34 can tightly press the double-sided adhesive layer 344 on the composite film, and the firmness of the double-sided adhesive layer 344 for bonding the composite film can reach the film tearing standard;

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

in addition, the rubber of the rubber layer 343 is made of a lipophilic rubber, and has excellent adhesion, the double-sided adhesive layer 344 is coated on the outer surface of the rubber layer 343, so that the adhesion between the double-sided adhesive layer 344 and the rubber layer 343 is tighter, and further, the situation that the double-sided adhesive layer 344 is stuck to a composite film and the double-sided adhesive layer 344 is separated from the film tearing roller 34 when the film tearing component acts is reduced;

in addition, the inner adhesive layer is silica gel, the outer adhesive layer is acrylic adhesive, 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 to the composite film, so that the use is convenient, and the adhesion effect is better; of course, according to practical situations, the inner adhesive layer and the outer adhesive layer may be double-sided adhesive layers 344 made of other materials, and only the viscosity of the inner adhesive layer of the double-sided adhesive layers 344 adhered to the surface of the film tearing roller 34 is ensured to be greater than that of the outer adhesive layer adhered to the surface of the composite film.

Working principle: when the composite film passes through the film tearing roller 34, the double-sided adhesive layer 344 is in contact with the composite film and is adhered to the PI film on the surface of the composite film, so that the PI film is torn off, and the viscosity of the inner adhesive layer of the double-sided adhesive layer 344 adhered to the surface of the roller body is set to be larger than that of the outer adhesive layer adhered to the surface of the composite film, so that the film tearing roller 34 is tightly adhered to the double-sided adhesive layer 344, the situation that the double-sided adhesive layer 344 is separated from the film tearing roller 34 and adhered to the composite film is avoided, and the PI film on the upper surface and the lower surface of the composite film can be torn off by the film tearing roller 34 at high efficiency, so that the required PVB intermediate film is obtained.

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

Claims

1. The low-temperature-resistant sound-insulation PVB glass intermediate film is characterized by comprising 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, and the preparation method comprises the following steps:

s3, placing the PVB film between the PI films manufactured in the step S2, enabling one surface with nano fibers to be in contact with the PVB film, and tabletting by a vulcanizing machine at 120-130 ℃ to form a composite film;

s4, conveying the composite film between the feeding rollers (32) through a conveying belt, starting a rolling motor (21) and a rolling motor (42), manually bypassing the composite film around the conveying rollers (33), passing between the limiting rollers (12) and the moving rollers (13), bypassing the conveying rollers (33) after passing through the film tearing rollers (34), and then putting the composite film on the rolling tensioning mechanism (43);

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 film on the upper surface and the lower surface of the composite film by the double-sided adhesive layer (344) on the film tearing roller (34), so that the required high-performance PVB intermediate film can be obtained.

2. The low temperature resistant, sound dampening PVB glass interlayer of claim 1 wherein the cellulose solution is present in an amount of 3-10% based on the total amount of the raw materials.

3. The apparatus for producing a PVB glass interlayer film having low temperature resistance and sound insulation according to claim 1, wherein the apparatus for producing is the apparatus for steps S4 to S5, and is characterized in that: 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 rolling device (4) is arranged on the conveying device (3) and at one end far away from the double-roller rolling device (1), the rolling 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 conveying device (3) comprises a conveying box body (31), a group of feeding rollers (32) are rotatably connected between the inner walls of the opening ends of the conveying box body (31), the feeding rollers (32) are distributed up and down, conveying rollers (33) are arranged below the feeding rollers (32) in an inclined mode, the ground height of the conveying rollers (33) is slightly lower than that of the feeding rollers (32), a group of film tearing rollers (34) are arranged on the conveying rollers (33) in an inclined mode, and conveying rollers (33) are respectively arranged beside the film tearing rollers (34) and below the inclined mode; after passing through the feeding rollers (32), the composite film downwards bypasses the transmission rollers (33), upwards passes through the space between the limit rollers (12) and the moving rollers (13), downwards passes through the film tearing rollers (34), downwards and upwards bypasses the transmission rollers (33) in sequence, and is attached to the winding tensioning mechanism (43);

the double-roller rolling device (1) comprises a rolling box body (11), rectangular through holes (111) are correspondingly formed in two sides of the rolling box body (11), a movable frame (14) is connected in a sliding manner in the rectangular through holes (111), a movable roller (13) is connected between inner side walls of the movable frame (14) in a rotating manner, a limit roller (12) is connected between the inner side walls of the rolling box body (11) in a rotating manner, the limit roller (12) and the movable roller (13) are correspondingly arranged left and right, so that after the movable roller (13) is adjusted to move, the outer edge surface of the movable roller can be in opposite contact with the outer edge surface of the limit roller (12), a rolling adjusting mechanism (15) is arranged on the end surface of the movable frame (14), and the other end of the rolling adjusting mechanism (15) is fixedly connected with the inner side end of the rolling box body (11);

the film tearing roller (34) comprises a film tearing roller shaft (341), a hub (342) and a rubber layer (343), wherein the rubber layer (343) is coated on the outer surface of the hub (342), the double-sided adhesive layer (344) is coated on the outer surface of the rubber layer (343), the structural strength of the film tearing roller (34) is improved by the aid of the arranged hub (342), the double-sided adhesive layer (344) can be tightly pressed on the composite film by the film tearing roller (34), and the firmness of the double-sided adhesive layer (344) for bonding the composite film can reach the standard of film tearing;

the double-sided adhesive layer (344) comprises an inner adhesive layer and an outer adhesive layer, wherein the inner adhesive layer is adhered to the surface of the rubber layer (343) and has a viscosity greater than that of the outer adhesive layer adhered to the surface of the composite film.