CN111391335A

CN111391335A - Bonding process of silica gel and PET

Info

Publication number: CN111391335A
Application number: CN202010204455.0A
Authority: CN
Inventors: 王军; 武丽娟
Original assignee: Suzhou Deyuan Clothing Co ltd
Current assignee: Suzhou Deyuan Clothing Co ltd
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2020-07-10

Abstract

The invention belongs to the technical field of adhesion, and particularly relates to a silica gel and PET (polyethylene terephthalate) adhesion process.A first scroll and a second scroll are connected between the front side wall and the rear side wall of an adhesion box together, and a silica gel film and a PET film are respectively wound on the surfaces of the first scroll and the second scroll; a first transmission shaft, a second transmission shaft and a first bonding shaft are connected between the front side wall and the rear side wall of the bonding box; a third transmission shaft, a fourth transmission shaft and a second bonding shaft are connected between the front side wall and the rear side wall of the bonding box; the front side wall and the rear side wall of the bonding box are respectively and commonly connected with two glue spraying pipes at the right side positions of the second transmission shaft and the fourth transmission shaft; a high-temperature box is arranged at the right side position of the bonding box; the automatic bonding of the silicone mold and the PET film is effectively realized, the efficiency is higher, the quality is more stable, the labor cost is reduced, and the high-temperature pressure maintaining treatment can be effectively carried out, so that the quality of the prepared finished product film is better, the bonding firmness is higher, and the defective rate of the product is reduced.

Description

Bonding process of silica gel and PET

Technical Field

The invention belongs to the technical field of adhesion, and particularly relates to a process for adhering silica gel and PET.

Background

Silica gel is also called silicic acid gel, is a granular porous silicon dioxide hydrate, belongs to an amorphous substance, is transparent or milk white in appearance, is prepared by washing and drying sodium silicate after adding acid, has stable chemical properties and does not burn; PET is a milky white or light yellow highly-crystalline polymer, has smooth and glossy surface, has excellent physical and mechanical properties in a wider temperature range, can reach 120 ℃ in long-term use, has excellent electrical insulation, and has good electrical properties even at high temperature and high frequency, but has poor corona resistance, creep resistance, fatigue resistance, friction resistance and dimensional stability.

Among the prior art, need bond through the manual work between pellosil and the PET membrane, not only efficiency is lower, the human cost is high, and the quality is more unstable, the interference of human factor to the quality is more, the defective percentage is high, therefore material cost also can increase, especially through artifical rubber coating, the homogeneity of bonding glue is difficult in order to guarantee, consequently can appear pellosil and PET membrane position bonding position do not have the problem that bonding glue and bonding glue are more, consequently the laminating quality of making is relatively poor, be difficult to satisfy the high-quality requirement scheduling problem of customer.

In view of this, in order to overcome the above technical problems, the company has designed and developed a bonding process of silicone adhesive and PET, and has adopted a special bonding machine to solve the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that in the prior art, the silicone membrane and the PET membrane need to be bonded manually, the efficiency is low, the labor cost is high, the quality is unstable, the quality is interfered by human factors, the defective rate is high, the material cost is increased, the uniformity of the bonding glue is difficult to guarantee especially through manual gluing, the problems that the bonding position of the silicone membrane and the PET membrane is free of bonding glue and the bonding glue is more exist, the quality of the prepared bonded membrane is poor, the high-quality requirement of a client is difficult to meet and the like are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a bonding process of silica gel and PET, which comprises the following steps:

s1: firstly, preparing a silicon membrane and a PET (polyethylene terephthalate) membrane, then placing the silicon membrane in a cleaner for ultrasonic cleaning, wherein the cleaning time is required to be kept for 5min, and then fully drying liquid on the surface of the silicon membrane; through the ultrasonic cleaning of purger, can effectually get rid of the surperficial dust of pellosil and other impurity, avoid a large amount of impurity matters of pellosil surface adhesion to produce the influence to the adhesion in later stage.

S2: then, the dried silica gel film and the dried PET film are simultaneously placed in a plasma vacuum machine, and the surface modification treatment is carried out on the binding surface of the silica gel film and the PET film, so that the surfaces of the silica gel film and the PET film material generate various physical and chemical changes, or generate etching and roughness, or form a compact cross-linking layer, or introduce oxygen-containing polar groups; plasma treatment is carried out on the binding surfaces of the silica gel film and the PET film, so that the hydrophilicity, cohesiveness, dyeability, biocompatibility and electrical property of the surfaces of the silica gel film and the PET film are effectively improved respectively, and the bonding firmness of the silica gel film and the PET film is improved.

S3: then respectively winding the treated silica gel film and the PET film on the surfaces of a first reel and a second reel of a bonding machine, wherein the modified silica gel surface or the PET film surface respectively deviates from the axes corresponding to the first reel and the second reel in the winding process;

s4: starting the bonder to realize automatic bonding of the silicone film and the PET film, cutting the bonded film into sheets and stacking, and finally performing high-temperature and pressure-maintaining treatment in a high-temperature box for 24h to obtain a finished film; through the automatic bonding of bonder, efficiency is higher, and the quality is comparatively stable, has reduced the human cost, and can effectual high temperature pressurize handle for the finished product that makes closes membrane quality better, and the fastness of bonding is higher.

The bonder used in the S3 comprises a bonding box, a glue spraying pipe and a high-temperature box; the bonding box is designed into a cuboid structure; a cavity is formed in the bonding box; the lower surface of the bonding box is fixedly connected with supporting legs at four vertex angles of the bonding box; the front side wall and the rear side wall of the bonding box are connected with the same first reel shaft together, and the first reel shaft is positioned close to the upper surface of the bonding box; the front side wall and the rear side wall of the bonding box are connected with the same second reel, and the second reel is positioned close to the lower surface of the bonding box; the outer arc surface of the first scroll is connected with a silicon film in a winding manner; the outer arc surface of the second reel is connected with a PET film in a winding manner; the same first transmission shaft is connected between the front side wall and the rear side wall of the bonding box at the upper right position of the first reel; the same second transmission shaft is connected between the front side wall and the rear side wall of the bonding box at the lower right position of the first transmission shaft; the same first bonding shaft is connected between the front side wall and the rear side wall of the bonding box at the lower right position of the second transmission shaft; the end of the silicon film sequentially penetrates through the first transmission shaft, the second transmission shaft and the first bonding shaft; the same third transmission shaft is connected between the front side wall and the rear side wall of the bonding box at the lower right position of the second scroll; the same fourth transmission shaft is connected between the front side wall and the rear side wall of the bonding box at the upper right position of the third transmission shaft; the same second bonding shaft is connected between the front side wall and the rear side wall of the bonding box at the upper right position of the fourth transmission shaft; the end of the PET film sequentially passes through the third transmission shaft, the fourth transmission shaft and the second bonding shaft; the silicone film and the PET film are both positioned between the first bonding shaft and the second bonding shaft and bonded to form a bonding film; the front side wall and the rear side wall of the bonding box are respectively and commonly connected with two glue spraying pipes at the right side positions of the second transmission shaft and the fourth transmission shaft; the side surfaces of the two rubber spraying pipes, which are opposite to each other, are respectively connected with a connecting rod, and the surface of each rubber spraying pipe is provided with two connecting rods which are respectively positioned at the positions close to the front side wall and the rear side wall of the bonding box; the two corresponding glue spray pipes are connected with the same flat glue rod together; a guide hole is formed in the right side wall of the bonding box at the position of the bonding film, the bonding film penetrates through the guide hole and extends to the outside of the bonding box, and a high-temperature box is arranged at the right side position of the bonding box; when the adhesive machine works, when the silicone film and the PET film need to be adhered, firstly, a power supply is switched on, the adhesive machine is started, the first transmission shaft and the second transmission shaft rotate to drive the silicone film on the surface of the first scroll to be pulled out and continuously convey the silicone film to the first adhesion shaft, meanwhile, the third transmission shaft and the fourth transmission shaft drive the PET film on the surface of the second scroll to be pulled out and continuously convey the PET film to the second adhesion shaft at the same rotating speed, the rotating directions of the first transmission shaft and the fourth transmission shaft are required to be equal, the rotating directions of the second rotation shaft and the third rotation shaft are equal, so that the silicone film and the PET film are continuously conveyed between the first adhesion shaft and the second adhesion shaft, the silicone film and the PET film are effectively adhered through the rolling pressure between the first adhesion shaft and the second adhesion shaft, and certainly, before the adhesion, the glue spraying pipes are arranged at the right side positions of the second transmission shaft and the fourth transmission shaft, the adhesive glue is continuously sprayed out through the strip-shaped adhesive spraying pipe to glue the side face of the opposite side of the silicone film and the PET film, then the connecting rods are arranged on the surface of the opposite side of the adhesive spraying pipe and are connected with the adhesive leveling rods through the connecting rods, and the adhesive leveling rods can be in surface contact with the corresponding second transmission shaft and the third transmission shaft, so that the adhesive glue on the surfaces of the silicone film and the PET film is uniform, the comprehensive and firm adhesion between the silicone film and the PET film is ensured, through the adhesive process of the silicone film and the PET, the problem that in the prior art, the problem that the silicone film and the PET film need to be adhered manually is effectively solved through an adhesive machine used in the process, the efficiency is low, the labor cost is high, the quality is unstable, the interference of human factors to the quality is more, and the defective rate is high, consequently, material cost also can increase, especially through artifical rubber coating, the difficult problem in order to guarantee of homogeneity of bonding glue, consequently, can appear that silica gel membrane and PET membrane position bonding position do not have bonding glue and the more problem of bonding glue, the laminating quality that consequently makes is relatively poor, be difficult to satisfy the high-quality requirement scheduling problem of customer, the automatic bonding of silica gel membrane and PET membrane has been realized, high efficiency, the quality is comparatively stable, and the human cost has been reduced, can effectual high temperature pressurize handle, make the finished product that makes laminate the membrane quality better, the bonding fastness is higher, the defective percentage of product reduces.

Preferably, the connecting rods are hinged with the surfaces of the corresponding glue spraying pipes; the surface of the glue spray pipe is fixedly connected with a fixed rod at the right side of the glue leveling rod; springs are connected between the fixed rods and the corresponding connecting rods; when the adhesive leveling device works, when the adhesive glue on the surface of the silicone film or the PET film is leveled uniformly by the fixed flat rubber rod, the requirements of the silicone film and the PET film with common thickness cannot be met, when the silicone film and the PET film are thicker, the pressure between the fixed flat rubber rod and the surface of the silicone film or the surface of the PET film is higher, so that the adhesive glue on the surface of the silicone film and the surface of the PET film is insufficient, and further the adhesion firmness is influenced, when the silicone film or the PET film is thinner, the pressure between the flat rubber rod and the surface of the silicone film or the surface of the PET film is lower, even a larger distance gap exists, so that the adhesive glue on the surface of the silicone film and the surface of the PET film is not smooth enough, a finished product film-combining part is not adhered enough, and the problem of glue opening easily occurs, therefore, by arranging the spring and the fixed rod, the connecting rod is hinged with the rubber spray pipe, arranging the spring between the fixed rod and the connecting rod, the pressure between the flat, the stable quality stability of the finished film with different thicknesses is realized.

Preferably, the glue leveling rod is designed to be a cylindrical structure, and the glue leveling rod is rotatably connected with the two corresponding connecting rods; the during operation, when the contact of rubber flattening pole and the pellosil or the PET membrane that correspond, can produce certain frictional force, long-term friction produces great wearing and tearing to the rubber flattening pole easily on the one hand, on the other hand produces the fold to pellosil and PET membrane easily, and then influence and close the membrane quality, can cause the damage of pellosil or PET membrane even, consequently through all rotating between two connecting rods with rubber flattening pole and corresponding to be connected, realize that the rolling of rubber flattening pole on pellosil or PET membrane surface levels, frictional force is less, it is lower to the influence of compound die to level.

Preferably, a cleaning plate is fixedly connected between the two corresponding connecting rods and close to the corresponding glue leveling rods; the side surfaces of the cleaning plates, which are opposite to one side of the corresponding flat rubber rods, are fixedly connected with flat silica gel blocks; the during operation, because flat gluey pole long-term work in, its surface can be stained with a large amount of bonding glue, these bonding glue accumulate for a long time and can exert an influence to the size of flat gluey pole and the smoothness nature on surface, consequently through setting up the cleaning plate, can in time effectually scrape the brush clearance to flat gluey pole through the cleaning plate, realized the validity of flat gluey pole long-term work.

Preferably, a cutting block is arranged on the right side surface of the bonding box above the guide hole; the inside of the cutting block is connected with a cutter up and down in a sliding manner; a pressure box is arranged in the high-temperature box; the upper surface of the high-temperature box is fixedly connected with an air cylinder, and an output shaft of the air cylinder penetrates through the upper wall of the high-temperature box and extends into the high-temperature box; the lower end face of the output shaft of the cylinder is fixedly connected with a pressing plate; the during operation, through setting up stripping and cutter, can carry out quick disconnected cutting to closing the membrane, and can guarantee to close the membrane uniformity of cutting length absolutely, then the membrane that closes after the disconnected cutting can fall into in the pressure box, and continuous accumulation, when accumulating to the within range of regulation, the piston rod of the cylinder of high temperature box upper surface stretches out, and then drive the clamp plate and move down, to closing the membrane and then continuously pushing down, cooperate the temperature and humidity in the high temperature box, long-time heat preservation pressurize, the bonding quality that the finished product that obtains closed the membrane is higher.

Preferably, the high-temperature box is designed to be of a circular structure; the pressing boxes are uniformly distributed by taking the axis of the high-temperature box as the center; the lower surface of the high-temperature box is provided with a fixed bottom plate, and the high-temperature box is rotatably connected with the fixed bottom plate; the upper surface of the high-temperature box is provided with an air cylinder and a pressing plate at positions right above the pressing box; the inner lower surface of the high-temperature box is radially provided with sliding grooves at the position of the pressing box; the pressing boxes are connected in the corresponding sliding grooves in a sliding manner; the during operation, through setting up the high temperature box into circular structure, rotate at PMKD upper surface through the high temperature box, can realize that the pressure box that evenly arranges in the high temperature box rotates near the high temperature box, rethread pressure box is the slip in the spout, can realize pressing the box and stretch out the high temperature box, fill in the pressure box and retrieve into the high temperature box after closing the membrane, then drive the clamp plate through the cylinder and compress tightly, the effectual automation and the bearing capacity that have improved the high temperature box, the solidification cost of bonding glue has been reduced.

The invention has the following beneficial effects:

1. the invention relates to a bonding process of silica gel and PET, which comprises the steps of arranging a bonding box, a glue spraying pipe and a high-temperature box, commonly connecting a first scroll and a second scroll between the front side wall and the rear side wall of the bonding box, rolling a silica gel film on the outer arc surface of the first scroll, rolling a PET film on the outer arc surface of the second scroll, commonly connecting a first transmission shaft, a second transmission shaft and a first bonding shaft between the front side wall and the rear side wall of the bonding box, sequentially passing the end of the silica gel film through the first transmission shaft, the second transmission shaft and the first bonding shaft, commonly connecting a third transmission shaft, a fourth transmission shaft and a second bonding shaft between the front side wall and the rear side wall of the bonding box, sequentially passing the end of the PET film through the third transmission shaft, the fourth transmission shaft and the second bonding shaft, respectively and commonly connecting two glue spraying pipes on the front side wall and the rear side wall of the bonding box at the right side positions of the second transmission shaft and the fourth transmission shaft, and arranging the high-temperature box at the right side of the bonding, through the bonding process of the silica gel and the PET, the problems that in the prior art, the silica gel film and the PET film need to be bonded manually, the efficiency is low, the labor cost is high, the quality is unstable, the interference of human factors to the quality is more, the defective rate is high, the material cost is increased, especially, the uniformity of bonding glue is difficult to ensure through manual gluing, the problems that the bonding positions of the silica gel film and the PET film are not bonded with bonding glue and the bonding glue is more occur, the quality of the prepared bonded film is poor, the high-quality requirements of customers are difficult to meet and the like are solved, the automatic bonding of the silica gel film and the PET film is realized, the efficiency is high, the quality is stable, the labor cost is reduced, the high-temperature pressure maintaining treatment can be effectively realized, and the quality of the prepared bonded film is more excellent, the fastness of the bonding is higher, and the defective rate of the product is reduced.

2. The invention relates to a bonding process of silica gel and PET, which comprises arranging a cutter, a cylinder and a pressing plate, arranging a cutting block above a guide hole through the right side surface of a bonding box, connecting the cutting block with the cutter in an up-and-down sliding manner, arranging a pressing box in the high-temperature box, fixedly connecting the upper surface of the high-temperature box with the cylinder, enabling an output shaft of the cylinder to penetrate through the upper wall of the high-temperature box and extend into the high-temperature box, fixedly connecting the lower end surface of the output shaft of the cylinder with the pressing plate, rapidly cutting off a bonded film by arranging the cutting block and the cutter, ensuring the consistency of the cut length of the bonded film, enabling the cut bonded film to fall into the pressing box and accumulate continuously, extending a cylinder piston rod on the upper surface of the high-temperature box when the bonded film is accumulated in a specified range, driving the pressing plate to move downwards to further continuously press the bonded film to match the temperature and humidity in the high-temperature box, and the obtained finished product film has higher bonding quality by keeping the temperature and pressure for a long time.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a process flow diagram of the present invention

FIG. 2 is a perspective view of a bonder used in the present invention;

FIG. 3 is a perspective view of a bonding box of a bonding machine used in the present invention;

FIG. 4 is a perspective view of a hot box of a bonder used in the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

in the figure: the adhesive box comprises an adhesive box 1, a first reel 11, a second reel 12, a silicon film 13, a PET film 14, a first transmission shaft 15, a second transmission shaft 16, a first adhesive shaft 17, a third transmission shaft 18, a fourth transmission shaft 19, a second adhesive shaft 110, a glue spraying pipe 2, a connecting rod 21, a glue leveling rod 22, a fixing rod 23, a spring 24, a cleaning plate 25, a high-temperature box 3, a cutting block 31, a cutter 32, an air cylinder 33, a pressing plate 34 and a pressing box 35.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the process for bonding silicone rubber and PET according to the present invention comprises the following steps:

s1: firstly, preparing a silicon membrane 13 and a PET membrane 14, then placing the silicon membrane 13 in a cleaner for ultrasonic cleaning, requiring the cleaning time to be kept for 5min, and then fully drying the liquid on the surface of the silicon membrane 13; through the ultrasonic cleaning of purger, can effectually get rid of the dust and other foreign matter on pellosil 13 surface, avoid a large amount of foreign matter that pellosil 13 surface adhesion produces the influence to the bonding in later stage.

S2: then, the dried silica gel film 13 and the dried PET film 14 are simultaneously placed in a plasma vacuum machine, and the surface modification treatment is carried out on the binding surface of the silica gel film 13 and the PET film 14, so that the surfaces of the materials of the silica gel film 13 and the PET film 14 are subjected to various physical and chemical changes, or are etched and rough, or form a compact cross-linking layer, or introduce oxygen-containing polar groups; plasma treatment is carried out on the binding surfaces of the silicone membrane 13 and the PET membrane 14, so that the hydrophilicity, the cohesiveness, the dyeability, the biocompatibility and the electrical property of the surfaces of the silicone membrane 13 and the PET membrane 14 are respectively effectively improved, and the bonding firmness of the silicone membrane 13 and the PET membrane 14 is improved.

S3: then, respectively winding the treated silicone film 13 and the treated PET film 14 on the surfaces of a first reel 11 and a second reel 12 of a bonding machine, wherein in the winding process, the modified silicone surface or the surface of the PET film 14 deviates from the axis corresponding to the first reel 11 and the second reel 12 respectively;

s4: starting the bonder to automatically bond the silicone film 13 and the PET film 14, cutting the bonded film into pieces and stacking, and finally performing high-temperature and pressure-maintaining treatment in a high-temperature box 3 for 24h to obtain a finished film; through the automatic bonding of bonder, efficiency is higher, and the quality is comparatively stable, has reduced the human cost, and can effectual high temperature pressurize handle for the finished product that makes closes membrane quality better, and the fastness of bonding is higher.

The gluing machine used in the S3 comprises a gluing box 1, a glue spraying pipe 2 and a high-temperature box 3; the bonding box 1 is designed into a cuboid structure; a cavity is formed in the bonding box 1; the lower surface of the bonding box 1 is fixedly connected with supporting legs at four vertex angles of the bonding box 1; the same first reel 11 is connected between the front side wall and the rear side wall of the bonding box 1, and the first reel 11 is positioned close to the upper surface of the bonding box 1; the same second reel 12 is connected between the front side wall and the rear side wall of the bonding box 1, and the second reel 12 is positioned close to the lower surface of the bonding box 1; a silicon membrane 13 is wound on the outer arc surface of the first reel 11; the outer arc surface of the second reel 12 is connected with a PET film 14 in a winding manner; the same first transmission shaft 15 is connected between the front side wall and the rear side wall of the bonding box 1 at the upper right position of the first reel 11; the same second transmission shaft 16 is connected between the front side wall and the rear side wall of the bonding box 1 at the lower right position of the first transmission shaft 15; the same first bonding shaft 17 is connected between the front side wall and the rear side wall of the bonding box 1 at the lower right position of the second transmission shaft 16; the end of the silicon membrane 13 sequentially passes through the first transmission shaft 15, the second transmission shaft 16 and the first bonding shaft 17; the same third transmission shaft 18 is connected between the front side wall and the rear side wall of the bonding box 1 at the lower right position of the second reel 12; the same fourth transmission shaft 19 is connected between the front side wall and the rear side wall of the bonding box 1 at the upper right position of the third transmission shaft 18; the same second bonding shaft 110 is connected between the front side wall and the rear side wall of the bonding box 1 at the upper right position of the fourth transmission shaft 19; the end of the PET film 14 sequentially passes through a third transmission shaft 18, a fourth transmission shaft 19 and a second bonding shaft 110; the silicone film 13 and the PET film 14 are both positioned between the first bonding shaft 17 and the second bonding shaft 110 and are bonded to form a bonding film; the front side wall and the rear side wall of the bonding box 1 are respectively and commonly connected with two glue spraying pipes 2 at the right side positions of the second transmission shaft 16 and the fourth transmission shaft 19; the side surfaces of the two opposite sides of the glue spraying pipes 2 are respectively connected with a connecting rod 21, and the surface of each glue spraying pipe is provided with two connecting rods 21 which are respectively positioned at the front side wall and the rear side wall of the bonding box 1; the same flat glue rod 22 is connected between the two corresponding glue spray pipes; a guide hole is formed in the right side wall of the bonding box 1 at the position of a film bonding position, the film bonding penetrates through the guide hole and extends to the outside of the bonding box 1, and a high-temperature box 3 is arranged at the right side position of the bonding box 1; when the bonding of the silicone film 13 and the PET film 14 is needed, firstly, a power supply is switched on, the bonding machine is started, the rotation of the first transmission shaft 15 and the second transmission shaft 16 drives the silicone film 13 on the surface of the first reel 11 to be pulled out and continuously conveyed to the first bonding shaft 17, meanwhile, the third transmission shaft 18 and the fourth transmission shaft 19 drive the PET film 14 on the surface of the second reel 12 to be pulled out and continuously conveyed to the second bonding shaft 110 at the same rotation speed, the rotation directions of the first transmission shaft 15 and the fourth transmission shaft 19 are required to be equal, the rotation directions of the second rotation shaft and the third rotation shaft are equal, so that the silicone film 13 and the PET film 14 are continuously conveyed between the first bonding shaft 17 and the second bonding shaft 110, the effective bonding of the silicone film 13 and the PET film 14 is realized through the rolling pressure between the first bonding shaft 17 and the second bonding shaft 110, certainly before the bonding, the glue spraying pipes 2 are arranged at the right side positions of the second transmission shaft 16 and the fourth transmission shaft 19, the strip-shaped glue spraying pipes 2 continuously spray bonding glue to glue the side surfaces of the opposite sides of the silicone membrane 13 and the PET membrane 14, then the connecting rods 21 are arranged on the surfaces of the opposite sides of the glue spraying pipes 2, the glue leveling rods 22 are connected through the connecting rods 21, the glue leveling rods 22 can be in surface contact with the corresponding second transmission shaft 16 and the corresponding third transmission shaft 18, so that the uniform leveling of the bonding glue on the surfaces of the silicone membrane 13 and the PET membrane 14 is realized, the overall bonding performance and firmness between the silicone membrane 13 and the PET membrane 14 are ensured, and through a bonding process of silicone and PET, the problem that in the prior art, the bonding between the silicone membrane 13 and the PET membrane 14 needs to be manually bonded is effectively solved through a bonding machine used in the process, the automatic gluing machine has the advantages that the efficiency is low, the labor cost is high, the quality is unstable, the interference of human factors to the quality is more, the defective rate is high, the material cost is increased, especially, the uniformity of gluing glue is difficult to guarantee through manual gluing, the problems that the gluing positions of the silicon membrane 13 and the PET membrane 14 are not glued and the gluing glue is more do not exist, the quality of the manufactured combined membrane is poor, the high-quality requirements of customers and the like are difficult to meet are solved, the automatic gluing of the silicon membrane and the PET membrane 14 is realized, the efficiency is high, the quality is stable, the labor cost is reduced, the high-temperature pressure maintaining treatment can be effectively carried out, the quality of the manufactured finished product combined membrane is excellent, the gluing firmness is high, and the defective rate of products is reduced.

As an embodiment of the present invention, the connecting rods 21 are hinged to the surfaces of the corresponding glue spraying pipes; the surface of the glue spray pipe is fixedly connected with a fixed rod 23 at the right side of the glue leveling rod 22; springs 24 are connected between the fixed rods 23 and the corresponding connecting rods 21; when the adhesive is used, when the adhesive glue on the surface of the silicone film 13 or the PET film 14 is uniformly leveled through the fixed glue leveling rod 22, the requirements of the silicone film 13 and the PET film 14 with common thickness cannot be met, when the silicone film 13 and the PET film 14 are thicker, the pressure between the fixed glue leveling rod 22 and the surface of the silicone film 13 or the surface of the PET film 14 is higher, so that the adhesive glue on the surface of the silicone film and the surface of the PET film 14 is insufficient, and the firmness of adhesion is influenced, when the silicone film 13 or the PET film 14 is thinner, the pressure between the glue leveling rod 22 and the surface of the silicone film 13 or the surface of the PET film 14 is lower, even a larger distance gap exists, so that the adhesive glue on the surface of the silicone film 13 and the surface of the PET film 14 is not smooth enough, and therefore the adhesion of a finished product film-laminated part is insufficient, and the problem of glue opening easily occurs, therefore, by arranging the spring 24 and the fixing rod 23, the connecting rod 21 is hinged with the, the pressure between the flat rubber rod 22 and the corresponding silicone membrane 13 and the PET membrane 14 can be automatically adjusted through the elastic force of the spring 24, and the stable quality and stability of the finished composite membranes with different thicknesses are realized.

As an embodiment of the present invention, the glue leveling rod 22 is designed to be a cylindrical structure, and the glue leveling rod 22 is rotatably connected to the two corresponding connecting rods 21; during operation, when flat gluey pole 22 and the pellosil 13 or the PET membrane 14 contact that corresponds, can produce certain frictional force, long-term friction produces great wearing and tearing to flat gluey pole 22 easily on the one hand, on the other hand produces the fold to pellosil 13 and PET membrane 14 easily, and then influence the membrane quality of closing, can cause pellosil 13 or the damage of PET membrane 14 even, consequently through all rotating between flat gluey pole 22 and two connecting rods 21 that correspond and being connected, realize that flat gluey pole 22 is level and smooth at the roll on pellosil 13 or PET membrane 14 surface, frictional force is less, it is lower to the influence of compound die to level and smooth.

As an embodiment of the invention, a cleaning plate 25 is fixedly connected between two corresponding connecting rods 21 and close to the corresponding glue leveling rod 22; the side faces of the cleaning plates 25, which are opposite to one side of the corresponding glue leveling rods 22, are fixedly connected with silica gel leveling blocks; during the work, because flat gluey pole 22 is worked for a long time, its surface can be stained with a large amount of bonding glue, and these bonding glues accumulate for a long time and can exert an influence to the size of flat gluey pole 22 and the smoothness nature on surface, consequently through setting up cleaning plate 25, can be in time effectual scrape the brush clearance to flat gluey pole 22 through cleaning plate 25, realized the validity of flat gluey pole 22 long-term work.

As an embodiment of the present invention, the right side surface of the bonding case 1 is provided with a cut block 31 at a position above the guide hole; a cutter 32 is connected inside the cutting block 31 in a vertical sliding manner; a pressure box 35 is arranged in the high-temperature box 3; the upper surface of the high-temperature box 3 is fixedly connected with an air cylinder 33, and an output shaft of the air cylinder 33 penetrates through the upper wall of the high-temperature box 3 and extends into the high-temperature box 3; the lower end face of the output shaft of the air cylinder 33 is fixedly connected with a pressing plate 34; the during operation, through setting up stripping and slicing

knife

31 and 32, can carry out quick disconnected cutting to closing the membrane, and can guarantee to close the membrane uniformity of disconnected length of cutting, then the membrane that closes after the disconnected cutting can fall into and press in the box 35, and continuous accumulation, when accumulating to the within range of regulation, the cylinder 33 piston rod of high temperature box 3 upper surface stretches out, and then drive clamp plate 34 downstream, to closing the membrane and then continuously pushing down, the temperature and humidity in the cooperation high temperature box 3, long-time heat preservation pressurize, the bonding quality that the finished product that obtains closed the membrane is higher.

As an embodiment of the present invention, the high temperature box 3 is designed to have a circular structure; the pressing boxes 35 are uniformly distributed by taking the axis of the high-temperature box 3 as the center; a fixed bottom plate is arranged on the lower surface of the high-temperature box 3, and the high-temperature box 3 is rotatably connected with the fixed bottom plate; the upper surface of the high-temperature box 3 is provided with an air cylinder 33 and a pressure plate 34 at the position right above the pressure box 35; the inner lower surface of the high-temperature box 3 is radially provided with sliding grooves at the position of the pressing box 35; the pressing boxes 35 are all connected in the corresponding sliding grooves in a sliding manner; the during operation, through setting up high temperature box 3 into circular structure, rotate at PMKD upper surface through high temperature box 3, can realize that the pressure box 35 that evenly arranges in the high temperature box 3 rotates to near high temperature box 3, rethread pressure box 35 is the slip in the spout, can realize pressing box 35 to stretch out high temperature box 3, in pressing box 35 to be full to close the membrane after-filling to retrieve into high temperature box 3, then drive clamp plate 34 through cylinder 33 and compress tightly, the effectual automation and the bearing capacity that have improved high temperature box 3, the solidification cost of bonding glue has been reduced.

The specific working process is as follows:

when the bonding of the silicone film 13 and the PET film 14 is needed, firstly, a power supply is switched on, the bonding machine is started, the rotation of the first transmission shaft 15 and the second transmission shaft 16 drives the silicone film 13 on the surface of the first reel 11 to be pulled out and continuously conveyed to the first bonding shaft 17, meanwhile, the third transmission shaft 18 and the fourth transmission shaft 19 drive the PET film 14 on the surface of the second reel 12 to be pulled out and continuously conveyed to the second bonding shaft 110 at the same rotation speed, the rotation directions of the first transmission shaft 15 and the fourth transmission shaft 19 are required to be equal, the rotation directions of the second rotation shaft and the third rotation shaft are equal, so that the silicone film 13 and the PET film 14 are continuously conveyed between the first bonding shaft 17 and the second bonding shaft 110, the effective bonding of the silicone film 13 and the PET film 14 is realized through the rolling pressure between the first bonding shaft 17 and the second bonding shaft 110, certainly before the bonding, the glue spraying pipes 2 are arranged at the right side positions of the second transmission shaft 16 and the fourth transmission shaft 19, the strip-shaped glue spraying pipes 2 continuously spray bonding glue to glue the side surfaces of the opposite sides of the silicone membrane 13 and the PET membrane 14, then the connecting rods 21 are arranged on the surfaces of the opposite sides of the glue spraying pipes 2, the connecting rods 21 are connected with the glue leveling rods 22, and the glue leveling rods 22 can be in surface contact with the corresponding second transmission shaft 16 and the corresponding third transmission shaft 18, so that the uniform leveling of the bonding glue on the surfaces of the silicone membrane 13 and the PET membrane 14 is realized, and the bonding comprehensiveness and firmness between the silicone membrane 13 and the PET membrane 14 are ensured; the spring 24 and the fixing rod 23 are arranged, the connecting rod 21 is hinged with the glue spraying pipe, the spring 24 is arranged between the fixing rod 23 and the connecting rod 21, the pressure between the glue leveling rod 22 and the corresponding silicone film 13 and the pressure between the glue leveling rod and the corresponding PET film 14 can be automatically adjusted under the elastic action of the spring 24, and the stable quality and stability of finished product composite films with different thicknesses are realized; the glue leveling rod 22 is rotationally connected with the two corresponding connecting rods 21, so that the glue leveling rod 22 rolls on the surface of the silicon film 13 or the surface of the PET film 14 to be flat, and the friction force is small; by arranging the cleaning plate 25, the flat rubber rod 22 can be effectively scraped and cleaned in time through the cleaning plate 25, and the effectiveness of the flat rubber rod 22 in long-term work is realized; set up cutting block 31 and cutter 32, can carry out quick disconnected cutting to closing the membrane, and can guarantee to close the membrane uniformity of cutting length absolutely, then the membrane that closes after the disconnected cutting can fall into and press in the box 35, and continuous accumulation, when accumulating to the within range of regulation, the cylinder 33 piston rod of high temperature box 3 upper surface stretches out, and then drive clamp plate 34 downstream, to closing the membrane and then continuously pushing down, cooperate the temperature and humidity in the high temperature box 3, long-time heat preservation pressurize.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A bonding process of silica gel and PET is characterized in that: the process comprises the following steps:

s1: firstly, preparing a silicon membrane (13) and a PET (polyethylene terephthalate) membrane (14), then placing the silicon membrane (13) in a cleaner for ultrasonic cleaning, wherein the cleaning time is required to be kept for 30min, and then fully drying the liquid on the surface of the silicon membrane (13);

s2: then, the dried silica gel film (13) and the dried PET film (14) are simultaneously placed in a plasma vacuum machine, and the surface modification treatment is carried out on the binding surface of the silica gel film (13) and the PET film (14), so that the surfaces of the materials of the silica gel film (13) and the PET film (14) are subjected to various physical and chemical changes, or are etched and rough, or a compact cross-linking layer is formed, or oxygen-containing polar groups are introduced;

s3: then respectively winding the treated silica gel film (13) and the PET film (14) on the surfaces of a first reel (11) and a second reel (12) of a bonding machine, wherein the modified silica gel surface or the surface of the PET film (14) deviates from the axes corresponding to the first reel (11) and the second reel (12) in the winding process;

s4: starting the bonder to automatically bond the silica gel film (13) and the PET film (14), cutting the bonded film to be sheets and stacked, and finally performing high-temperature and pressure maintaining treatment in a high-temperature box (3) for 24 hours to obtain a finished film;

the gluing machine used in the S3 comprises a gluing box (1), a glue spraying pipe (2) and a high-temperature box (3); the bonding box (1) is designed into a cuboid structure; a cavity is formed in the bonding box (1); the lower surface of the bonding box (1) is fixedly connected with supporting legs at four vertex angles of the bonding box (1); the same first reel (11) is connected between the front side wall and the rear side wall of the bonding box (1), and the first reel (11) is positioned close to the upper surface of the bonding box (1); the same second reel (12) is connected between the front side wall and the rear side wall of the bonding box (1), and the second reel (12) is positioned close to the lower surface of the bonding box (1); a silicon film (13) is wound on the outer arc surface of the first reel (11); the outer arc surface of the second reel (12) is connected with a PET film (14) in a winding way; the same first transmission shaft (15) is connected between the front side wall and the rear side wall of the bonding box (1) at the upper right position of the first reel (11); the same second transmission shaft (16) is connected between the front side wall and the rear side wall of the bonding box (1) at the lower right position of the first transmission shaft (15); the same first bonding shaft (17) is connected between the front side wall and the rear side wall of the bonding box (1) at the lower right position of the second transmission shaft (16); the end of the silicon film (13) sequentially penetrates through the first transmission shaft (15), the second transmission shaft (16) and the first bonding shaft (17); the same third transmission shaft (18) is connected between the front side wall and the rear side wall of the bonding box (1) at the lower right position of the second reel (12); the same fourth transmission shaft (19) is connected between the front side wall and the rear side wall of the bonding box (1) at the upper right position of the third transmission shaft (18); the same second bonding shaft (110) is connected between the front side wall and the rear side wall of the bonding box (1) at the upper right position of the fourth transmission shaft (19); the end of the PET film (14) sequentially passes through a third transmission shaft (18), a fourth transmission shaft (19) and a second bonding shaft (110); the silicone film (13) and the PET film (14) are both positioned between the first bonding shaft (17) and the second bonding shaft (110) and bonded to form a bonding film; the front side wall and the rear side wall of the bonding box (1) are respectively and commonly connected with two glue spraying pipes (2) at the right side positions of the second transmission shaft (16) and the fourth transmission shaft (19); the side surfaces of the two opposite sides of the two glue spraying pipes (2) are respectively connected with a connecting rod (21), and the surface of each glue spraying pipe is provided with two connecting rods (21) which are respectively positioned at the front side wall and the rear side wall of the bonding box (1); the same flat glue rod (22) is connected between the two corresponding glue spray pipes; a guide hole is formed in the position, where the film is bonded, of the side wall of the right side of the bonding box (1), the film is bonded and penetrates through the guide hole and extends to the outside of the bonding box (1), and a high-temperature box (3) is arranged at the position of the right side of the bonding box (1).

2. The process for bonding silicone rubber and PET as claimed in claim 1, wherein: the connecting rods (21) are hinged with the surfaces of the corresponding glue spraying pipes; the surface of the glue spray pipe is fixedly connected with a fixed rod (23) at the right side of the glue leveling rod (22); and springs (24) are connected between the fixing rods (23) and the corresponding connecting rods (21).

3. The process for bonding silicone rubber and PET as claimed in claim 2, wherein: the glue leveling rod (22) is designed to be a cylinder structure, and the glue leveling rod (22) is rotationally connected with the two corresponding connecting rods (21).

4. The process for bonding silica gel and PET as claimed in claim 3, wherein: a cleaning plate (25) is fixedly connected between the two corresponding connecting rods (21) and close to the corresponding glue leveling rod (22); the cleaning plate (25) is fixedly connected with a silica gel flat block relative to one side face of the corresponding flat gel rod (22).

5. The process for bonding silicone rubber and PET as claimed in claim 1, wherein: a cutting block (31) is arranged on the right side surface of the bonding box (1) above the guide hole; a cutter (32) is connected inside the cutting block (31) in a vertical sliding manner; a pressure box (35) is arranged in the high-temperature box (3); the upper surface of the high-temperature box (3) is fixedly connected with an air cylinder (33), and an output shaft of the air cylinder (33) penetrates through the upper wall of the high-temperature box (3) and extends into the high-temperature box (3); and the lower end face of the output shaft of the air cylinder (33) is fixedly connected with a pressure plate (34).

6. The process for bonding silicone rubber and PET as claimed in claim 5, wherein: the high-temperature box (3) is designed into a circular structure; the pressing boxes (35) are uniformly distributed by taking the axis of the high-temperature box (3) as the center; a fixed bottom plate is arranged on the lower surface of the high-temperature box (3), and the high-temperature box (3) is rotatably connected with the fixed bottom plate; the upper surface of the high-temperature box (3) is provided with a cylinder (33) and a pressing plate (34) at positions right above the pressing box (35); sliding grooves are radially formed in the inner lower surface of the high-temperature box (3) at the position of the pressing box (35); the pressing boxes (35) are connected in the corresponding sliding grooves in a sliding mode.