Composite device of electromagnetic shielding film extensible structure

Abstract

The invention relates to the technical field of electromagnetic shielding film processing, in particular to an electromagnetic shielding film composite device with an extensible structure, which comprises a base and a composite frame, the composite frame is rotatably connected to the rear side of the base, and limiting seats are fixedly connected to two sides of the base. According to the compounding device of the electromagnetic shielding film extensible structure, two sections of electromagnetic shielding films needing to be spliced and compounded can be placed at the top of the base when the electromagnetic shielding films are spliced and compounded, and the compounding frame is rotated to be clamped at the top of the base for processing; the high-power heater arranged on the inner side of the seat shell can heat a membrane material placed on the high-power heater through the heat-conducting sheet, the membrane material can be directly melted when splicing and compounding processing is carried out on a low-melting-point material such as polypyrrole, polyaniline or conductive rubber material, and cooling is carried out after edge positions of the material are bonded.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic shielding film processing, in particular to a composite device with an expandable structure of an electromagnetic shielding film. Background Art

[0002] As we all know, electromagnetic shielding film is an electronic material film used to reduce electromagnetic interference or electromagnetic radiation. It is designed to block or weaken the electromagnetic field, prevent the electromagnetic field from interfering with electronic equipment, circuits or systems, and ensure the reliable operation of sensitive equipment. Common electromagnetic shielding films differ in performance, characteristics, application scenarios, etc. due to different materials. They usually include but are not limited to metal electromagnetic shielding films, conductive filler electromagnetic shielding films, conductive polymer electromagnetic shielding films, and composite electromagnetic shielding films.

[0003] When composite processing is performed on electromagnetic shielding films, a composite device can be used. Problems with the prior art are: usually, for the convenience of packaging and taking, the electromagnetic shielding film is rolled or cut into cells for use. When in use, it is inevitable that the size is short or it needs to be laid outside the equipment building, for example. At this time, the electromagnetic shielding film needs to be expanded in size. Processing by splicing and composite is a common method, but the usual splicing and composite is usually to fix the seams between the electromagnetic shielding films by pasting adhesive or welding. However, due to the large number of types of electromagnetic shielding films, it is difficult to perform composite splicing processing when encountering electromagnetic shielding films of different materials, and there is a lack of positional restrictions on the electromagnetic shielding film materials, which can easily cause the splicing position to shift or overlap, resulting in defective coverage or excessive thickness of the part caused by lamination;

[0004] Based on the above-mentioned situation, we found that it is difficult for the electromagnetic shielding film of the prior art to avoid the above problems at the same time. Therefore, we proposed a composite device of an electromagnetic shielding film expandable structure that can quickly switch the structure to perform splicing, composite expansion processing on electromagnetic shielding films of different materials, and at the same time can reasonably limit the electromagnetic shielding film materials during processing. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a composite device with an expandable structure for electromagnetic shielding films, which has the advantages of being able to quickly switch structures to perform splicing, composite expansion processing on electromagnetic shielding films of different materials, and at the same time being able to reasonably limit the electromagnetic shielding film materials during processing.

[0007] (II) Technical solution

[0008] The above technical object of the present invention is achieved through the following technical solutions: A composite device with an expandable structure of an electromagnetic shielding film, including a base and a composite frame. The composite frame is rotatably connected to the rear side of the base, and limiting seats are fixedly connected to both sides of the base;

[0009] The base includes a seat shell, a high-power heater is installed inside the seat shell, a heat conduction sheet is installed inside the seat shell, the heat conduction sheet is arranged on the top of the high-power heater, and a rotating sleeve is fixedly connected to the rear side of the seat shell;

[0010] The composite frame includes an empty frame. Pressure seats that cooperate with the limiting seats are fixedly connected to both sides inside the empty frame. A pressure conversion component is installed inside the empty frame. A rotating shaft is fixedly connected to the bottom of the empty frame, and the outer side of the rotating shaft is rotatably connected to the rotating sleeve;

[0011] The pressure conversion component includes a middle beam. Both ends of the middle beam are fixedly connected to the empty frame. A triangular prism frame is rotatably connected to the outer side of the middle beam. A hot pressing component, an adhesive component, and a spare frame are installed on the outer side of the triangular prism frame. A pressure adhesive tank is installed inside the adhesive component;

[0012] The hot pressing component includes a content box. A low-power heater and a heat exchange tube are installed inside the content box. A heat exchange device is installed on the side of the heat exchange tube close to the triangular prism frame. A heat conduction plate is fixedly connected to the side of the content box far from the triangular prism frame. The inside of the content box is filled with a heat conduction medium;

[0013] The adhesive component includes a film top frame. A guiding protrusion is integrally formed on the side of the film top frame close to the triangular prism frame. A transmission frame is fixedly connected to the side of the film top frame close to the triangular prism frame. A slider is slidably connected to the inside of the transmission frame. The side of the slider close to the pressure adhesive tank is fixedly connected to the pressure adhesive tank;

[0014] The pressure adhesive tank includes a granule cylinder. An electric cylinder is fixedly connected to the outer side of the granule cylinder. A push piece is fixedly connected to the telescopic end of the electric cylinder. A push rod is fixedly connected to the side of the push piece close to the granule cylinder. A push tube is fixedly connected to the side of the push rod far from the push piece. The outer side of the push tube is slidably connected to the inner wall of the granule cylinder.

[0015] Adopting the above technical solution, a structure similar to a right angle is formed by setting the base in cooperation with the composite frame. When splicing and compounding the electromagnetic shielding film, the two electromagnetic shielding films to be spliced and compounded can be placed on the top of the base, and the composite frame is rotated to be stuck on the top of the base for processing. Since the composite frame presses against the top of the film material through the hot pressing component, the adhesive component and the spare frame, the film material is not prone to displacement or lamination during the processing. The high-power heater arranged inside the seat shell can heat the film material placed on it through the heat conduction sheet. When splicing and compounding materials with relatively low melting points, such as polypyrrole, polyaniline or conductive rubber materials, they can be directly melted, and their edge positions are bonded and then cooled. When it is necessary to bond two sections of film materials with glue, the heating of the heat conduction sheet can assist the glue to melt and is not easy to solidify during the bonding process, and after cooling and curing, the splicing and compounding expansion processing of the film material is completed. When the composite frame presses down the film material, it is connected to the base through the rotating shaft and the rotating sleeve and can rotate along the rotating shaft. When it is necessary to thermally melt the film material itself for composite processing, the triangular frame of the pressure conversion component can be rotated along the inside of the empty frame and the middle beam until its hot pressing component faces the top of the base. After the composite frame is rotated and clamped on the top of the base, it presses against the top of the electromagnetic shielding film through the content box. Subsequently, the low-power heater heats the heat conduction medium inside the content box, and the heat is transmitted to the heat conduction plate to assist in preheating the film material, and the hot melting and temperature control of the film material are realized in cooperation with the heating of the base. After melting, both the high-power heater and the low-power heater are turned off. Then, the pump of the heat exchange device extracts the coolant cooled by the heat exchanger in the water tank and injects it into the heat exchange tube to cool the heating medium through the heat exchange tube, so as to quickly cool the heat conduction plate and achieve the effect of assisting the re-solidification of the position where the film material is melted. Then, the cooling water circulates and cools through the heat exchange device. When it is necessary to splice and compound a film material with a relatively high melting point with glue, the triangular frame is rotated along the middle beam to make the adhesive component face the top of the base. The film top frame on its top directly contacts the film material and presses it. When in use, the slider moves along the transmission frame to press the glue tank. While the glue tank is moving, the electric cylinder retracts, driving the push piece and the push rod to continuously push the granular glue to one end of the granule cylinder and extrude the glue from the bottom after melting, so that it adheres to the joint of the film material to complete the splicing and compounding by means of glue bonding.

[0016] The present invention is further configured as: a narrow sleeve is fixedly connected to one side of the content box close to the triangular frame, a wide sleeve is slidably connected to the outside of the narrow sleeve, an elastic airbag is fixedly connected to the inside of the wide sleeve, and the outside of the elastic airbag is fixedly connected to the narrow sleeve.

[0017] With the above technical solution, by setting a narrow sleeve in cooperation with a wide sleeve and an elastic airbag, when the content box presses against the film material, it is not completely fixed. After the film material is heat-melted, the film material can be pushed slightly to make the two sections of materials approach each other to promote their fusion. During the movement, the elastic airbag may be slightly deformed due to the force, and after resetting, it still presses against the narrow sleeve to apply a force to the content box along the wide sleeve, so that it continuously presses against the film material.

[0018] The present invention is further configured as follows: a control motor is fixedly connected to the top of the transmission frame, a lead screw is rotatably connected to the inside of the transmission frame, the output end of the control motor penetrates through the transmission frame and is fixedly connected to the lead screw, and the outside of the lead screw is threadedly connected to the slider.

[0019] With the above technical solution, by setting the control motor to drive the lead screw to rotate inside the transmission frame, it is used to provide power for the slider so that it can move horizontally along the transmission frame to achieve the effect of driving the glue pressing tank.

[0020] The present invention is further configured as follows: an integrally formed inclined tube is provided on the outside of the granule cylinder, a filling cylinder is fixedly connected to the side of the inclined tube away from the granule cylinder, and an end cover is threadedly connected to the side of the filling cylinder away from the inclined tube.

[0021] With the above technical solution, by setting the inclined tube for connecting the filling cylinder and the granule cylinder, since the composite frame needs to be kept vertical during non-use and material replacement, at this time, the glue particles in the filling cylinder will enter the granule cylinder through the inclined tube due to gravity, and the end cover is convenient for opening or closing the filling cylinder to facilitate the addition of glue.

[0022] The present invention is further configured as follows: an integrally formed extrusion cylinder is provided on the outside of the granule cylinder, a pressing plate is fixedly connected to the inside of the extrusion cylinder, a heating tube is installed inside the pressing plate, a blocking piece is provided inside the pressing plate, an outer tube is fixedly connected to the outside of the blocking piece, an inner tube is slidably connected to the inside of the outer tube, and an integrally formed hollow rod is provided inside the extrusion cylinder. One side of the hollow rod close to the outer tube is fixedly connected to a tension spring, and one side of the tension spring close to the outer tube is fixedly connected to the top of the outer tube.

[0023] With the above technical solution, by setting the extrusion cylinder in cooperation with the pressing plate, when the pushing cylinder pushes the granules, it will squeeze them into the position of the extrusion cylinder and melt when entering the inside of the pressing plate due to the heating of the heating tube. The continuous pushing pressure will press against the glue to press the blocking piece downward, and the liquefied glue will leak down along the gap between the pressing plate and the blocking piece and fall from the bottom of the extrusion cylinder into the gap of the film material to complete the glue coating action. When the blocking piece moves, the outer tube connected to it will move down along the inner tube. At this time, the tension spring is stretched by the force. When the pushing cylinder stops pressing the granules, the tension spring resets to pull the blocking piece back to re-limit the granules to prevent leakage and facilitate subsequent processing operations.

[0024] The present invention is further configured such that: a border formed integrally is provided on a side of the granule cylinder away from the pushing piece, a scraping plate is rotatably connected to the inner side of the border, a torsion spring is fixedly connected to the outer side of the scraping plate, and one side of the torsion spring close to the border is fixedly connected to the border.

[0025] With the above technical solution, by providing the border in cooperation with the scraping plate, after the granule cylinder extrudes the rubber material to the joint position, the connected scraping plate will continuously scrape the rubber material, so that it is laid on the joint relatively evenly, reducing the unevenness of the connection position caused by the thickness of the colloid itself.

[0026] The present invention is further configured such that: a sliding frame is slidably connected to the inner side of the spare frame, a scraping knife is fixedly connected to the outer side of the sliding frame, the outer side of the scraping knife is slidably connected to the spare frame, a support column is fixedly connected to a chamfer position on a side of the spare frame close to the triangular frame, one side of the support column close to the triangular frame is fixedly connected to the triangular frame, a cushion foot is fixedly connected to a chamfer position on a side of the film top frame close to the triangular frame, and one side of the cushion foot close to the triangular frame is fixedly connected to the triangular frame.

[0027] With the above technical solution, by providing the sliding frame in cooperation with the scraping knife, when there is residual rubber material impurities on the top of the base, it can be switched to the spare frame on the top of the base, the sliding frame is slid along the spare frame, and the connected scraping knife will scrape the impurities on its surface along the top of the base, so as to facilitate subsequent operations.

[0028] The present invention is further configured such that: the limit seat includes a side frame, two rotating rods are rotatably connected to the inner side of the side frame, and a contact wheel is fixedly connected to the outer side of the rotating rod.

[0029] With the above technical solution, by providing the side frame in cooperation with the rotating rod, it is convenient to install the contact wheel, and when placing the film material, its extended part can be placed on the surface of the contact wheel to make its processing position relatively horizontal.

[0030] The present invention is further configured such that: a through groove is opened in the inner side of the side frame, an auxiliary strip formed integrally is provided at a chamfer position on the inner side of the side frame, a shaft frame is slidably connected to the inner side of the auxiliary strip, a compression spring is fixedly connected to the bottom of the shaft frame, the bottom of the compression spring contacts the bottom of the inner side of the auxiliary strip, a synchronous frame is fixedly connected to a side of the shaft frame close to the rotating rod, the inner side of the synchronous frame is rotatably connected to the rotating rod, and transmission wheels are fixedly connected to the outer sides of the two rotating rods, and the transmission wheels are connected by a transmission belt.

[0031] With the above technical solution, by setting the auxiliary bar in cooperation with the compression spring, it is convenient to support the shaft frame. The synchronous frame connected to the shaft frame is used to support the rotating rod and enable it to rotate normally. Under the limitation of the auxiliary bar, it can also ensure the vertical movement of the synchronous frame, and it is not easy to deflect or displace. When the rotating rod needs to be rotated to bond the film material during hot melting, the rotating rod can be rotated, and the transmission wheel and the transmission belt will drive another rotating rod on the same side to rotate, so as to facilitate the pushing of the film material.

[0032] The present invention is further configured as: the pressing seat includes a seat frame, a connecting rod is fixedly connected to the inner side of the seat frame, a pressing wheel is rotatably connected to the outer side of the connecting rod, and the pressing wheel and the contact wheel are used in cooperation.

[0033] With the above technical solution, by setting the seat frame in cooperation with the connecting rod, it is convenient to press the film material through the pressing wheel so that it is located between the contact wheel and the pressing wheel. When the film material is moved, it can be prevented from bending. When it is normally limited, the compression spring can also be deformed when the pressing wheel presses down, so that the rotating rod sinks, and the film material is fixed at a height relative to the processing position.

[0034] (III) Beneficial effects

[0035] Compared with the prior art, the present invention provides a composite device with an expandable structure for electromagnetic shielding films, and has the following beneficial effects:

[0036] The composite device with an expandable structure of the electromagnetic shielding film forms a structure similar to a right angle by setting a base and a composite frame. When splicing and compounding the electromagnetic shielding film, two sections of the electromagnetic shielding film to be spliced and compounded can be placed on the top of the base, and the composite frame is rotated to be stuck on the top of the base for processing. Since the composite frame presses against the top of the film material through the hot pressing component, the adhesive component and the spare frame, the film material is not prone to displacement or lamination during the processing. The high-power heater arranged inside the seat shell can heat the film material placed on it through the heat conducting sheet. When splicing and compounding materials with relatively low melting points, such as polypyrrole, polyaniline or conductive rubber materials, they can be directly melted, and their edge positions are bonded and then cooled. When it is necessary to bond two sections of the film material with glue, the heating of the heat conducting sheet can assist the glue to melt and is not easy to solidify during the bonding process, and after cooling and curing, the splicing and compounding and expansion processing of the film material are completed. When pressing down the film material through the composite frame, it is connected to the base through a rotating shaft and a rotating sleeve and can rotate along the rotating shaft. When it is necessary to melt the film material itself for composite processing, the triangular frame of the pressure conversion component can be rotated along the inside of the empty frame and the middle beam until its hot pressing component faces the top of the base. After the composite frame is rotated and clamped on the top of the base, it presses against the top of the electromagnetic shielding film through the content box. Subsequently, the low-power heater heats the heat conducting medium inside the content box, and the heat is transmitted to the heat conducting plate to assist in preheating the film material, and the melting and temperature control of the film material are realized in cooperation with the heating of the base. After melting, both the high-power heater and the low-power heater are turned off, and then the pump of the heat exchange device extracts the coolant cooled by the heat exchanger and injects it into the heat exchange tube to cool the heating medium through the heat exchange tube, so as to quickly cool the heat conducting plate and achieve the effect of assisting the re-solidification of the position where the film material is melted. Then, the cooling water circulates and cools through the heat exchange device. When it is necessary to splice and compound the film material with a relatively high melting point with glue, the triangular frame is rotated along the middle beam to make the adhesive component face the top of the base, and the film top frame on its top directly contacts the film material and presses it. When in use, the slider moves along the transmission frame to press the glue tank. While the glue tank is moving, the electric cylinder retracts, driving the push plate and the push rod to push the push cylinder to continuously push the granular glue to one end of the granular material cylinder and extrude the melted glue from the bottom, so that it adheres to the joint of the film material to complete the splicing and compounding by means of glue bonding. Description of the Drawings

[0037] Figure 1 Schematic diagram of the main structure in the present invention;

[0038] Figure 2 Schematic diagram of the structure of the pressure conversion component in the present invention;

[0039] Figure 3 Schematic diagram of the structure of the hot pressing component in the present invention;

[0040] Figure 4 Schematic connection diagram of the narrow sleeve in the present invention;

[0041] Figure 5 Schematic position diagram of the scraper in the present invention;

[0042] Figure 6 Schematic structural diagram of the adhesive assembly in the present invention;

[0043] Figure 7 Schematic structural diagram of the pressure adhesive tank in the present invention;

[0044] Figure 8 Schematic structural diagram of the base in the present invention;

[0045] Figure 9 Schematic structural diagram of the side frame in the present invention;

[0046] Figure 10 Schematic usage diagram of the main structure in the present invention;

[0047] Figure 11 Schematic structural diagram of the pressure seat in the present invention;

[0048] Figure 12 In the present invention Figure 7 Partial enlarged view of location A.

[0049] In the figure: 1. Base; 101. Seat shell; 102. High-power heater; 103. Heat-conducting sheet; 104. Rotating sleeve; 2. Composite frame; 21. Empty frame; 22. Pressure seat; 221. Seat frame; 222. Connecting rod; 223. Pressure wheel; 23. Pressure-changing assembly; 231. Middle beam; 232. Triangular prism frame; 233. Hot-pressing assembly; 233a. Inner box; 233b. Low-power heater; 233c. Heat-exchanging tube; 233d. Heat-exchanging device; 233e. Heat-conducting plate; 234. Adhesive assembly; 234a. Film top frame; 234b. Transmission frame; 234c. Slide block; 235. Spare frame; 236. Pressure adhesive tank; 236a. Granule cylinder; 236b. Electric cylinder; 236c. Pushing sheet; 236d. Push rod; 236e. Pushing cylinder; 24. Rotating shaft; 3. Limit seat; 31. Side frame; 32. Rotating rod; 33. Contact wheel; 4. Narrow sleeve; 5. Wide sleeve; 6. Elastic airbag; 7. Synchronous frame; 8. Lead screw; 9. Scraper; 10. Shaft frame; 11. Filling cylinder; 12. Extrusion cylinder; 13. Pressure plate; 14. Blocking piece; 15. Outer tube; 16. Inner tube; 17. Scraper; 18. Slide frame. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] Embodiment 1

[0052] Please refer to Figures 1-9 , a composite device with an expandable structure of an electromagnetic shielding film, including a base 1 and a composite frame 2. The composite frame 2 is rotatably connected to the rear side of the base 1, and limiting seats 3 are fixedly connected to both sides of the base 1;

[0053] The base 1 includes a seat shell 101. A high-power heater 102 is installed inside the seat shell 101, and a heat-conducting sheet 103 is installed inside the seat shell 101. The heat-conducting sheet 103 is arranged on top of the high-power heater 102, and a rotating sleeve 104 is fixedly connected to the rear side of the seat shell 101;

[0054] By setting the base 1 to cooperate with the composite frame 2 to form a structure similar to a right angle, when splicing and compounding the electromagnetic shielding film, two sections of the electromagnetic shielding film to be spliced and compounded can be placed on top of the base 1, and the composite frame 2 is rotated to be stuck on top of the base 1 for processing. Since the composite frame 2 presses against the top of the film material through the hot pressing assembly 233, the adhesive assembly 234, and the spare frame 235, the film material is not likely to be displaced or laminated during the processing. The high-power heater 102 installed inside the seat shell 101 can heat the film material placed on it through the heat-conducting sheet 103. When splicing and compounding materials with a relatively low melting point, such as polypyrrole, polyaniline, or conductive rubber materials, they can be directly melted, and their edges are bonded and then cooled. When it is necessary to bond two sections of the film material with glue, the heating of the heat-conducting sheet 103 can assist in melting the glue and is not likely to solidify during the bonding process, and after cooling and curing, the splicing and compounding and expansion processing of the film material are completed.

[0055] Among them, a through groove is provided on the inner side of the side frame 31, an integrally formed auxiliary strip is provided at the inner chamfer of the side frame 31, a shaft frame 10 is slidably connected to the inner side of the auxiliary strip, a compression spring is fixedly connected to the bottom of the shaft frame 10, and the bottom of the compression spring contacts the bottom of the inner side of the auxiliary strip. A synchronous frame 7 is fixedly connected to the side of the shaft frame 10 close to the rotating rod 32, and the inner side of the synchronous frame 7 is rotatably connected to the rotating rod 32. Transmission wheels are fixedly connected to the outer sides of the two rotating rods 32, and the transmission wheels are connected by a transmission belt. By providing the auxiliary strip in cooperation with the compression spring, it is convenient to support the shaft frame 10. The synchronous frame 7 connected to the shaft frame 10 is used to support the rotating rod 32 and enable it to rotate normally. Under the limitation of the auxiliary strip, it can also ensure that the synchronous frame 7 moves vertically and is not prone to deflection or displacement. When the rotating rod 32 needs to be rotated to fit the film material during hot melting, the rotating rod 32 can be rotated, and the transmission wheel and the transmission belt will drive the other rotating rod 32 on the same side to rotate, so as to facilitate the pushing of the film material. The pressing seat 22 includes a seat frame 221, a connecting rod 222 is fixedly connected to the inner side of the seat frame 221, a pressing wheel 223 is rotatably connected to the outer side of the connecting rod 222, and the pressing wheel 223 is used in cooperation with the contact wheel 33. By providing the seat frame 221 in cooperation with the connecting rod 222, it is convenient to press the film material through the pressing wheel 223 so that it is located between the contact wheel 33 and the pressing wheel 223. When the film material is moved, it can be prevented from being bent. When it is normally limited, the compression spring can also be deformed when the pressing wheel 223 presses down, so that the rotating rod 32 sinks and the film material is fixed at a height relative to the processing position.

[0056] Working principle of this embodiment: First, place two electromagnetic shielding films to be spliced on the top of the base 1. The extended parts of the films are placed on the contact wheels 33 outside the rotating rods 32 on the side frames 31 of the limit seat 3 to ensure that the film materials are in a relatively horizontal processing position. Rotate the composite frame 2 so that it rotates around the rotating sleeve 104 at the rear of the base 1 through the rotating shaft 24 until the composite frame 2 is engaged with the top of the base 1. At this time, the hot pressing component 233, the adhesive component 234 or the spare frame 235 on the composite frame 2 will apply pressure to the top of the film material to prevent the film material from displacing or laminating during processing. Turn on the high-power heater 102 in the housing 101 of the base 1 and heat the film material through the heat conducting sheet 103. If further operations are required, rotate the rotating rod 32 in the side frame 31, drive the other rotating rod 32 on the same side to rotate by using the transmission wheel and the transmission belt, push the film material to make it fit. After the film material melts, wait for it to cool and solidify to complete the splicing and compounding. When using adhesive processing, also rotate the composite frame 2 to make it engaged with the top of the base 1 to ensure that the film material is stably pressed. The high-power heater 102 of the base 1 heats the film material through the heat conducting sheet 103 to assist in melting the adhesive. The pressure wheel 223 on the connecting rod 222 in the seat frame 221 of the pressure seat 22 cooperates with the contact wheel 33 to prevent the film material from bending when moving the film material. During normal limiting, the pressure wheel 223 presses down to deform the compression spring, and the rotating rod 32 sinks to fix the film material at an appropriate height for subsequent gluing operations to complete the splicing and compounding of the film material.

[0057] Embodiment 2

[0058] Reference Figures 1-12 A composite device for an expandable structure of an electromagnetic shielding film further includes a composite frame 2. Among them, both sides inside the empty frame 21 are fixedly connected with pressure seats 22 used in cooperation with the limit seat 3. A pressure conversion component 23 is installed inside the empty frame 21. The bottom of the empty frame 21 is fixedly connected with a rotating shaft 24, and the outside of the rotating shaft 24 is rotationally connected with the rotating sleeve 104;

[0059] The pressure conversion component 23 includes a middle beam 231. Both ends of the middle beam 231 are fixedly connected with the empty frame 21. The outside of the middle beam 231 is rotationally connected with a triangular prism frame 232. The outside of the triangular prism frame 232 is equipped with a hot pressing component 233, an adhesive component 234 and a spare frame 235. A pressure glue tank 236 is installed inside the adhesive component 234;

[0060] The hot pressing component 233 includes a content box 233a. A low-power heater 233b and a heat exchange tube 233c are installed inside the content box 233a. A heat exchange device 233d is installed on one side of the heat exchange tube 233c close to the triangular prism frame 232. A heat conducting plate 233e is fixedly connected to the side of the content box 233a away from the triangular prism frame 232. The inside of the content box 233a is filled with a heat conducting medium;

[0061] The adhesive assembly 234 includes a film top bracket 234a. A guiding protrusion formed integrally is provided on one side of the film top bracket 234a close to the triangular bracket 232. A transmission bracket 234b is fixedly connected to one side of the film top bracket 234a close to the triangular bracket. A slider 234c is slidably connected to the inner side of the transmission bracket 234b. One side of the slider 234c close to the glue pressing tank 236 is fixedly connected to the glue pressing tank 236;

[0062] The glue pressing tank 236 includes a granule cylinder 236a. An electric cylinder 236b is fixedly connected to the outer side of the granule cylinder 236a. A push piece 236c is fixedly connected to the telescopic end of the electric cylinder 236b. A push rod 236d is fixedly connected to one side of the push piece 236c close to the granule cylinder 236a. A push cylinder 236e is fixedly connected to the side of the push rod 236d away from the push piece 236c. The outer side of the push cylinder 236e is slidably connected to the inner wall of the granule cylinder 236a;

[0063] When pressing down the film material through the composite bracket 2, it is connected to the base 1 through the rotating shaft 24 and the rotating sleeve 104 and can rotate along the rotating shaft 24. When it is necessary to heat the film material itself for composite processing, the triangular bracket 232 of the pressure conversion assembly 23 can be rotated along the inner sides of the empty bracket 21 and the middle beam 231 until its hot pressing assembly 233 faces the top of the base 1. After the composite bracket 2 is rotationally engaged with the top of the base 1, it presses against the top of the electromagnetic shielding film through the content box 233a. Subsequently, the low-power heater 233b heats the heat-conducting medium inside the content box 233a, and the heat is transmitted to the heat-conducting plate 233e to assist in preheating the film material. Together with the heating of the base 1, it realizes the hot melting and temperature control of the film material. After melting, both the high-power heater 102 and the low-power heater 233b are turned off. Then, the pump of the heat exchange device 233d extracts the coolant cooled by the heat exchanger by the water tank and injects it into the heat exchange tube 233c. The heat exchange tube 233c cools the heating medium to quickly cool the heat-conducting plate 233e, achieving the effect of assisting the re-solidification of the position where the film material melts. Then, the cooling water circulates and cools through the heat exchange device 233d. When it is necessary to splice and composite the film material with a higher melting point through the adhesive, rotate the triangular bracket 232 along the middle beam 231 to make the adhesive assembly 234 face the top of the base 1. The film top bracket 234a at its top directly contacts the film material and presses it. When in use, the slider 234c moves the glue pressing tank 236 along the transmission bracket 234b. While the glue pressing tank 236 is moving, the electric cylinder 236b retracts, driving the push piece 236c and the push rod 236d to push the push cylinder 236e to continuously push the granular glue to one end of the granule cylinder 236a and extrude the glue from the bottom after melting, so that it adheres to the joint of the film material to complete the splicing and composite in the way of adhesive bonding.

[0064] Among them, a narrow sleeve 4 is fixedly connected to one side of the content box 233a close to the triangular frame 232. A wide sleeve 5 is slidably connected to the outer side of the narrow sleeve 4. An elastic airbag 6 is fixedly connected to the inner side of the wide sleeve 5. The outer side of the elastic airbag 6 is fixedly connected to the narrow sleeve 4. By arranging the narrow sleeve 4 in cooperation with the wide sleeve 5 and the elastic airbag 6, when the content box 233a presses against the film material, it is not completely fixed. After the film material is heat-melted, the film material can be pushed slightly to make the two sections of materials approach each other to promote their fusion. During the movement, the elastic airbag 6 may be slightly deformed due to the force, and after resetting, it still presses against the narrow sleeve 4 to apply a force to the content box 233a along the wide sleeve 5, so that it continuously presses against the film material. A control motor is fixedly connected to the top of the transmission frame 234b. A lead screw 8 is rotatably connected to the inner side of the transmission frame 234b. The output end of the control motor penetrates through the transmission frame 234b and is fixedly connected to the lead screw 8. The outer side of the lead screw 8 is threadedly connected to the slider 234c. By arranging the control motor to drive the lead screw 8 to rotate inside the transmission frame 234b, it is used to provide power for the slider 234c so that it can move horizontally along the transmission frame 234b to drive the glue tank 236. An integrally formed inclined tube is provided on the outer side of the granule cylinder 236a. One side of the inclined tube far from the granule cylinder 236a is fixedly connected to a filling cylinder 11. A end cap is threadedly connected to one side of the filling cylinder 11 far from the inclined tube. By arranging the inclined tube, it is used to connect the filling cylinder 11 and the granule cylinder 236a. Since the composite frame 2 needs to be kept vertical when not in use and when replacing materials, at this time, the glue particles in the filling cylinder 11 will enter the granule cylinder 236a through the inclined tube due to gravity. The end cap is convenient for opening or closing the filling cylinder 11 to facilitate adding glue. An integrally formed extrusion cylinder 12 is provided on the outer side of the granule cylinder 236a. A pressure plate 13 is fixedly connected to the inner side of the extrusion cylinder 12. A heating tube is installed on the inner side of the pressure plate 13. A blocking piece 14 is provided on the inner side of the pressure plate 13. An outer tube 15 is fixedly connected to the outer side of the blocking piece 14. An inner tube 16 is slidably connected to the inner side of the outer tube 15. An integrally formed hollow rod is provided on the inner side of the extrusion cylinder 12. A tension spring is fixedly connected to one side of the hollow rod close to the outer tube 15. One side of the tension spring close to the outer tube 15 is fixedly connected to the top of the outer tube 15. By arranging the extrusion cylinder 12 in cooperation with the pressure plate 13, when the pushing cylinder 236e pushes the granules, it will squeeze them into the position of the extrusion cylinder 12 and melt when entering the inside of the pressure plate 13 due to the heating of the heating tube. The continuous pushing pressure will press against the glue to press the blocking piece 14 downward. The liquefied glue will leak down along the gap between the pressure plate 13 and the blocking piece 14 and fall on the gap of the film material from the bottom of the extrusion cylinder 12 to complete the gluing action. When the blocking piece 14 moves, the outer tube 15 connected to it will move down along the inner tube 16. At this time, the tension spring is stretched by the force. When the pushing cylinder 236e stops pressing the granules, the tension spring resets to pull the blocking piece 14 back to re-limit the granules to prevent them from leaking, facilitating subsequent processing operations. A border is integrally formed on one side of the granule cylinder 236a far from the pushing piece 236c.A squeegee 17 is rotatably connected to the inner side of the frame. A torsion spring is fixedly connected to the outer side of the squeegee 17. The side of the torsion spring close to the frame is fixedly connected to the frame. By arranging the frame in cooperation with the squeegee 17, after the granule cylinder 236a extrudes the rubber material to the joint position, the connected squeegee 17 will continuously scrape the rubber material, so that it is laid on the joint relatively evenly, reducing the unevenness of the connection position caused by the thickness of the colloid itself. A sliding frame 18 is slidably connected to the inner side of the spare frame 235. A scraping knife 9 is fixedly connected to the outer side of the sliding frame 18. The outer side of the scraping knife 9 is slidably connected to the spare frame 235. A support column is fixedly connected to the chamfer of the spare frame 235 close to the triangular frame 232. The side of the support column close to the triangular frame 232 is fixedly connected to the triangular frame 232. A foot pad is fixedly connected to the chamfer of the film top frame 234a close to the triangular frame 232. The side of the foot pad close to the triangular frame 232 is fixedly connected to the triangular frame 232. By arranging the sliding frame 18 in cooperation with the scraping knife 9, when there is residual rubber material impurities on the top of the base 1, it can be switched to the spare frame 235 on the top of the base 1, and the sliding frame 18 is slid along the spare frame 235. The connected scraping knife 9 will scrape the surface impurities along the top of the base 1 to facilitate subsequent operations. The limit seat 3 includes a side frame 31. Two rotating rods 32 are rotatably connected to the inner side of the side frame 31. A contact wheel 33 is fixedly connected to the outer side of the rotating rod 32. By arranging the side frame 31 in cooperation with the rotating rod 32, it is convenient to install the contact wheel 33. When placing the film material, its extended part can be placed on the surface of the contact wheel 33 to make its processing position relatively horizontal.,

[0065] Working principle of this embodiment: First, ensure that the composite frame 2 is stably rotatably connected to the rear rotating sleeve 104 of the base 1 through the bottom rotating shaft 24. If adhesive processing is adopted, open the end cover of the filling cylinder 11, and use the inclined tube to fill the granule cylinder 236a with rubber particles from the filling cylinder 11 under the action of gravity. Then close the end cover, rotate the composite frame 2 to make it snap onto the top of the base 1. The film top frame 234a directly contacts and presses the film material. Start the control motor at the top of the transmission frame 234b to drive the lead screw 8 to rotate, drive the slider 234c to move horizontally along the transmission frame 234b, and then drive the glue pressing tank 236 to move. When the glue pressing tank 236 moves, the electric cylinder 236b retracts, driving the push plate 236c, the push rod 236d and the push cylinder 236e to push the granular glue material in the granule cylinder 236a to the extrusion cylinder 12. The glue material in the extrusion cylinder 12 is melted by the heating tube on the pressure plate 13. The continuous pushing pressure causes the glue material to press down the blocking piece 14, and the liquefied glue material leaks from the gap between the pressure plate 13 and the blocking piece 14 and falls on the film joint at the bottom of the extrusion cylinder 12. Subsequently, the scraper 17 on the granule cylinder 236a continuously scrapes the glue material to evenly apply it to the joint. When hot melt processing is adopted, rotate the composite frame 2 to make it rotate around the rotating shaft 24 along the rotating sleeve 104 and snap onto the top of the base 1. At this time, the content box 233a presses against the top of the electromagnetic shielding film. Turn on the low-power heater 233b in the content box 233a to heat the internal heat-conducting medium. The heat is conducted to the heat-conducting plate 233e to assist the base 1 in preheating the film material, realizing the hot melt and temperature control of the film material. During this process, the narrow sleeve 4, the wide sleeve 5 and the elastic airbag 6 cooperate to slightly push the film material to promote the fusion of the two sections of materials, and the elastic airbag 6 continuously applies a pressing force to the content box 233a after resetting. After the film material melts, turn off the low-power heater 233b, and at the same time start the heat exchange device 233d. Its pump extracts the coolant cooled by the heat exchanger and injects it into the heat exchange tube 233c to cool the heating medium, quickly cool the heat-conducting plate 233e, and promote the re-solidification of the melted position of the film material. The cooling water circulates and cools through the heat exchange device 233d. When there are glue material impurities remaining on the top of the base 1, rotate the triangular frame 232 to make the spare frame 235 face the top of the base 1. Slide the sliding frame 18 along the spare frame 235, and use the scraper 9 to scrape off the impurities on the top of the base 1 for subsequent operations.

[0066] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite device of an electromagnetic shielding film expandable structure, comprising a base (1) and a composite frame (2), characterized in that: The composite frame (2) is rotatably connected to the rear side of the base (1), and both sides of the base (1) are fixedly connected to the limiting seats (3); The base (1) comprises a base shell (101), a high-power heater (102) is installed on the inner side of the base shell (101), a heat conducting sheet (103) is installed on the inner side of the base shell (101), the heat conducting sheet (103) is arranged on the top of the high-power heater (102), and a rotating sleeve (104) is fixedly connected to the rear side of the base shell (101); The composite frame (2) comprises an empty frame (21), both sides of the inner side of the empty frame (21) are fixedly connected with pressure seats (22) used in conjunction with the limit seat (3), a pressure changing assembly (23) is installed on the inner side of the empty frame (21), a rotating shaft (24) is fixedly connected to the bottom of the empty frame (21), and the outer side of the rotating shaft (24) is rotatably connected to the rotating sleeve (104); The pressure changing assembly (23) comprises a middle beam (231), both ends of the middle beam (231) are fixedly connected to the empty frame (21), the outer side of the middle beam (231) is rotatably connected to a triangular frame (232), the outer side of the triangular frame (232) is installed with a hot pressing assembly (233), a gluing assembly (234) and a spare frame (235), and the inner side of the gluing assembly (234) is installed with a glue pressing tank (236); The hot pressing assembly (233) comprises a content box (233a), a low-power heater (233b) and a heat exchange tube (233c) are installed on the inner side of the content box (233a), a heat exchange device (233d) is installed on the side of the heat exchange tube (233c) close to the triangular frame (232), a heat conduction plate (233e) is fixedly connected to the side of the content box (233a) away from the triangular frame (232), and the inner side of the content box (233a) is filled with a heat conduction medium; The adhesive assembly (234) comprises a film top frame (234a), a side of the film top frame (234a) close to the triangular frame (232) is provided with an integrally formed guide protrusion, a side of the film top frame (234a) close to the triangular frame (232) is fixedly connected to a transmission frame (234b), a sliding block (234c) is slidably connected to the inner side of the transmission frame (234b), and a side of the sliding block (234c) close to the glue pressing tank (236) is fixedly connected to the glue pressing tank (236); The glue pressing tank (236) comprises a pellet barrel (236a), the outer side of the pellet barrel (236a) is fixedly connected to an electric cylinder (236b), the telescopic end of the electric cylinder (236b) is fixedly connected to a push piece (236c), the side of the push piece (236c) close to the pellet barrel (236a) is fixedly connected to a push rod (236d), the side of the push rod (236d) away from the push piece (236c) is fixedly connected to a push barrel (236e), and the outer side of the push barrel (236e) is slidably connected to the inner wall of the pellet barrel (236a).

2. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: A narrow sleeve (4) is fixedly connected to one side of the content box (233a) close to the triangular frame (232); a wide sleeve (5) is slidably connected to the outer side of the narrow sleeve (4); an elastic airbag (6) is fixedly connected to the inner side of the wide sleeve (5); and the outer side of the elastic airbag (6) is fixedly connected to the narrow sleeve (4).

3. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: The top of the transmission frame (234b) is fixedly connected to a control motor, the inner side of the transmission frame (234b) is rotatably connected to a screw rod (8), the output end of the control motor passes through the transmission frame (234b) and is fixedly connected to the screw rod (8), and the outer side of the screw rod (8) is threadedly connected to a slider (234c).

4. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: An integrally formed inclined tube is provided on the outer side of the pellet barrel (236a), a side of the inclined tube away from the pellet barrel (236a) is fixedly connected to a filling barrel (11), and a side of the filling barrel (11) away from the inclined tube is threadedly connected to an end cap.

5. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: The outer side of the pelletizing cylinder (236a) is provided with an integrally formed extrusion cylinder (12), the inner side of the extrusion cylinder (12) is fixedly connected with a pressure plate (13), the inner side of the pressure plate (13) is provided with a heating tube, the inner side of the pressure plate (13) is provided with a plugging piece (14), the outer side of the plugging piece (14) is fixedly connected with an outer tube (15), the inner side of the outer tube (15) is slidably connected with an inner tube (16), the inner side of the extrusion cylinder (12) is provided with an integrally formed hollow rod, the side of the hollow rod close to the outer tube (15) is fixedly connected with a tension spring, and the side of the tension spring close to the outer tube (15) is fixedly connected to the top of the outer tube (15).

6. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: An integrally formed frame is provided on the side of the pellet barrel (236a) away from the push piece (236c), the inner side of the frame is rotatably connected to a scraper (17), the outer side of the scraper (17) is fixedly connected to a torsion spring, and the side of the torsion spring close to the frame is fixedly connected to the frame.

7. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: The inner side of the standby frame (235) is slidably connected to a slide frame (18), the outer side of the slide frame (18) is fixedly connected to a scraper (9), the outer side of the scraper (9) is slidably connected to the standby frame (235), the standby frame (235) is fixedly connected to a support at a chamfer on one side close to the triangular frame (232), the support is fixedly connected to the triangular frame (232) on one side close to the triangular frame (232), the membrane top frame (234a) is fixedly connected to a foot at a chamfer on one side close to the triangular frame (232), the foot is fixedly connected to the triangular frame (232) on one side close to the triangular frame (232).

8. The composite device of the electromagnetic shielding film expandable structure according to claim 1, characterized in that: The limiting seat (3) comprises a side frame (31), the inner side of the side frame (31) is rotatably connected to two rotating rods (32), and the outer side of the rotating rod (32) is fixedly connected to a contact wheel (33).

9. The composite device of the electromagnetic shielding film expandable structure according to claim 8, characterized in that: A through groove is provided on the inner side of the side frame (31); an integrally formed auxiliary strip is provided at the inner chamfer of the side frame (31); an axle frame (10) is slidably connected to the inner side of the auxiliary strip; a compression spring is fixedly connected to the bottom of the axle frame (10); the bottom of the compression spring contacts the bottom of the inner side of the auxiliary strip; a synchronous frame (7) is fixedly connected to the side of the axle frame (10) close to the rotating rod (32); the inner side of the synchronous frame (7) is rotatably connected to the rotating rod (32); the outer sides of the two rotating rods (32) are fixedly connected to transmission wheels; the transmission wheels are connected via a transmission belt.

10. The composite device of the electromagnetic shielding film expandable structure according to claim 9, characterized in that: The pressure seat (22) comprises a seat frame (221), the inner side of the seat frame (221) is fixedly connected to a connecting rod (222), the outer side of the connecting rod (222) is rotatably connected to a pressure wheel (223), and the pressure wheel (223) and the contact wheel (33) are used in conjunction with each other.

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