Flexible deformable portable adhesive film puncture device and use method thereof

Abstract

The invention relates to the technical field of aviation composite material component cementing repair, and discloses a flexible deformable portable adhesive film puncture device and a using method thereof.The flexible deformable portable adhesive film puncture device comprises a flexible rubber pad and a puncture mechanism, and the puncture mechanism comprises a flexible rubber matrix and a plurality of puncture needle heads; one end of each puncture needle head is connected with one end face of the flexible rubber base body. The puncture device can achieve rapid puncture of internal and external field repair adhesive films in a repair area, can be matched with repair equipment to achieve positioning and installation of adhesive films of various repair structures and discharge of various holes, greatly improves manual operation efficiency and quality, and is easy to operate, light in weight, low in implementation cost and high in overall manufacturability and economical efficiency.

Description

Technical Field

[0001] The invention relates to an adhesive film puncturing device, in particular to a flexible and deformable portable adhesive film puncturing device and a use method thereof, belonging to the technical field of adhesive joint repair of aviation composite material components. Background Art

[0002] It is common for composite materials to accumulate fatigue and impact damage during service, resulting in structural damage. In order to achieve economical maintenance, adhesive repair can be adopted. The key to adhesive repair is to form a high-quality adhesive interface. Through ultrasonic non-destructive testing of the repaired structure after bonding, it was found that the adhesive film bonding area is prone to small-scale debonding, with a size of 3mm to 5mm. Process analysis believes that this is related to the fact that small defects such as air enclosed in the adhesive layer during manufacturing, air enclosed in the repair process, and air on the surface of the repair structure cannot be effectively discharged during the curing process, resulting in debonding defects in the repaired structure.

[0003] Traditional repair methods rely on workers' naked eye identification and single-needle puncture to achieve air discharge, which is inefficient and has unsatisfactory results. At present, the disclosed patent "A film hole maker" (application number: 202410140099.9, application publication number: CN117962025A) uses a fixed roller and a roller to bite to achieve film puncture, which can puncture regular flat films and is more suitable for trial use in mass manufacturing scenarios. In addition, the equipment design is heavy and inconvenient to carry, and cannot meet the needs of portable repairs in the field. Therefore, the purpose of the present invention is to provide a flexible and deformable portable film puncture device and a method of using it. Summary of the invention

[0004] The purpose of the present invention is to provide a flexible and deformable portable adhesive film puncturing device and a method of using the same, so as to solve the problem of low air exhaust quality and easy debonding defects during the adhesive film bonding process in indoor and outdoor repair scenarios.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A portable flexible and deformable film puncturing device comprises a flexible rubber pad and a puncturing mechanism. The puncturing mechanism comprises a flexible rubber matrix and a plurality of puncturing needles. One end of each of the plurality of puncturing needles is connected to an end surface of the flexible rubber matrix.

[0007] Optionally, the flexible rubber pad has a thickness of 2.0 mm, a diameter of φ300 mm, and a plurality of size marking lines are drawn on the surface of one end.

[0008] Optionally, the flexible rubber substrate has a thickness of 3 mm to 5 mm and a diameter of φ300 mm.

[0009] Optionally, the puncture needle is conical, with an end cross-sectional size of 1.5 mm to 2.0 mm, and one end of the puncture needle is cured and encapsulated in a flexible rubber matrix.

[0010] Optionally, the distance between two adjacent puncture needles is 3.0 mm to 5.0 mm, and the distance between the puncture end of the puncture needle and the end surface of the flexible rubber substrate is 0.5 mm to 1.0 mm.

[0011] A method for using a flexible and deformable portable film puncturing device, the method for using the device is based on the puncturing device, and the method for using the device further comprises the following steps:

[0012] Step 1: Select the corresponding size of adhesive film according to the bonding area;

[0013] Step 2: Clean the flexible rubber pad and puncture mechanism;

[0014] Step 3: Divide the repair area on the repair component, lay the flexible rubber pad in the repair area, and lay a layer of easy-to-tear cloth film on the upper surface of the flexible rubber pad;

[0015] Step 4: Align the adhesive film to be used on the upper surface of the flexible rubber pad, align the puncture mechanism with the flexible rubber pad, and place the puncture end of the puncture needle toward the adhesive film;

[0016] Step 5: Install a vacuum packaging device around the repair area, connect a vacuum pump, evacuate the repair area to negative pressure, and maintain it for 5.0min to 10.0min;

[0017] Step 6: Disassemble the vacuum packaging device, and take out the adhesive film, puncture mechanism and flexible rubber pad;

[0018] Step 7: Remove the easily peelable cloth film and release paper on the surface of the film, lay the film inside the repair area, reseal and install the vacuum packaging device, maintain the maximum limit negative pressure compaction and continue to exhaust for more than 15.0 minutes;

[0019] Step 8: Disassemble the sealed vacuum device to discharge the pores of the film in the repair area.

[0020] Optionally, the vacuum packaging device includes a sealing strip, a breathable felt, a vacuum bag film and a vacuum air nozzle. When laying, the breathable felt is first laid on top of the flexible rubber substrate, the sealing strip is bonded to the repair component around the outer circle of the breathable felt, the bottom of the vacuum bag film is bonded and installed on top of the breathable felt through the sealing strip, and the vacuum air nozzle is installed on the vacuum bag film.

[0021] Beneficial effects of the present invention:

[0022] The puncture device can realize the rapid puncture of indoor and outdoor repair films in the repair area, and cooperate with the repair equipment to realize the positioning, installation and various types of pore discharge of various repair structure films, greatly improving the efficiency and quality of manual work. The device is simple to operate, light in weight, low in cost, and has strong overall processability and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the structure of the puncture device of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure of the puncture mechanism of the present invention.

[0026] Figure 3 It is a schematic diagram of the puncture device and the repair area of ​​the present invention.

[0027] Figure 4 It is a schematic diagram of the installation structure of the puncture device of the present invention when puncturing a film.

[0028] In the figure: 1. flexible rubber pad; 20. flexible rubber matrix; 21. puncture needle; 3. adhesive film; 4. repair area; 5. repair component; 6. easy-to-tear cloth film; 7. breathable felt; 8. vacuum bag film; 9. vacuum air nozzle; 10. sealing strip. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-4 As shown, a portable flexible and deformable film puncturing device comprises a flexible rubber pad 1 and a puncturing mechanism, wherein the puncturing mechanism comprises a flexible rubber matrix 20 and a plurality of puncturing needles 21, wherein one end of each of the puncturing needles 21 is connected to one end surface of the flexible rubber matrix 20.

[0031] Specifically, the thickness of the flexible rubber pad 1 is 2.0 mm, the diameter is φ300 mm, and a plurality of size marking lines are drawn on the surface of one end. The size marking lines are convenient for installation and determination with the repair area 4 in actual use.

[0032] Specifically, the thickness of the flexible rubber substrate 20 is 3 mm to 5 mm, and the diameter is φ300 mm. The diameter of the flexible rubber substrate 20 is the same as the diameter of the flexible rubber pad 1, so that they can cooperate with each other during use to avoid uneven force on the rubber film 3 sandwiched between the two. In addition, the flexible rubber substrate 20 and the flexible rubber pad 1 both have the function of deformation, and can adapt to the shape of the repair area 4 during use.

[0033] Specifically, the puncture needle 21 is conical, and the cross-sectional size of the end portion is 1.5 mm to 2.0 mm. One end of the puncture needle 21 is cured and packaged in the flexible rubber matrix 20 .

[0034] A plurality of puncture needles 21 are densely arranged on the flexible rubber substrate 20, the distance between two adjacent puncture needles 21 is 3.0 mm to 5.0 mm, and the distance between the puncture end of the puncture needle 21 and the end surface of the flexible rubber substrate 20 is 0.5 mm to 1.0 mm;

[0035] The puncture needle 21 is fixed in the flexible rubber matrix 20 by casting, and the protruding portion of 0.5 mm to 1.0 mm is a sharp metal with a puncture function.

[0036] A method for using a flexible and deformable portable film puncturing device, the method for using the device is based on the puncturing device, and the method for using the device further comprises the following steps:

[0037] Step 1: Select a film 3 of corresponding size according to the bonding area, usually with a diameter less than 300 mm;

[0038] Step 2: Clean the flexible rubber pad 1 and the puncture mechanism, remove dust and oil stains on the surface, and wrap them with a clean film for protection. Remove the film before subsequent use;

[0039] Step 3: A boundary line of φ300.0 mm is marked on the surface of the area to be repaired on the repair component 5, and the area inside the boundary line is the repair area 4, so that the repair area 4 is divided on the repair component 5, and the flexible rubber pad 1 is laid in the repair area 4, and a layer of easy-to-tear cloth film 6 is laid on the upper surface of the flexible rubber pad 1. The easy-to-tear cloth film 6 makes it easy for the subsequent adhesive film 3 to be easily separated from the flexible rubber pad 1, and does not affect the recycling of the flexible rubber pad 1.

[0040] Step 4: Align the adhesive film 3 to be used on the upper surface of the flexible rubber pad 1, align the puncture mechanism with the flexible rubber pad 1, and place the puncture end of the puncture needle 21 toward the adhesive film 3; when the adhesive film 3 is laid on the upper surface of the flexible rubber pad 1 and punctured by the puncture needle 21 above, the puncture needle 21 penetrates into the interior of the flexible rubber pad 1 without causing damage to the repair area 4.

[0041] Step 5: Install a vacuum packaging device around the repair area 4, connect a vacuum pump, evacuate the repair area 4 to a negative pressure, and maintain it for 5.0 min to 10.0 min;

[0042] Step 6: disassemble the vacuum packaging device, take out the shaped, punctured and completely exhausted rubber film 3, the puncture mechanism and the flexible rubber pad 1;

[0043] Step 7: Remove the easy-to-tear cloth film 6 and release paper on the surface of the film 3, lay the film 3 inside the clean repair area 4, reseal and install the vacuum packaging device, maintain the maximum limit negative pressure compaction and continue to exhaust for more than 15.0 minutes;

[0044] Step 8: Disassemble the sealed vacuum device to discharge the pores of the adhesive film 3 in the repair area 4.

[0045] Specifically, the vacuum packaging device includes a sealing strip 10, a breathable felt 7, a vacuum bag film 8 and a vacuum air nozzle 9. When laying, the breathable felt 7 is first laid on top of the flexible rubber substrate 20, the sealing strip 10 is bonded to the repair component 5 around the outer circle of the breathable felt 7, the bottom of the vacuum bag film 8 is bonded and installed on top of the breathable felt 7 through the sealing strip 10, and the vacuum air nozzle 9 is installed on the vacuum bag film 8 for connecting an external vacuum pump.

[0046] During the use of the puncture device, the vacuum packaging device should be equipped with a dedicated vacuum source. The vacuum source is connected to the vacuum air nozzle 9 through a vacuum joint. A vacuum air tank can be used under indoor conditions. Under outdoor conditions, only the flexible rubber pad 1 and the puncture mechanism and the vacuum packaging device are used in combination with the vacuum pump provided by the composite material hot repair instrument to achieve good results. The overall device has high detachability, considerable portability, and good adaptability to the vacuum source.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A portable flexible and deformable film puncturing device, characterized in that: It comprises a flexible rubber pad and a puncture mechanism. The puncture mechanism comprises a flexible rubber matrix and a plurality of puncture needles. One ends of the plurality of puncture needles are connected to one end surface of the flexible rubber matrix.

2. A portable flexible and deformable film puncturing device according to claim 1, characterized in that: The thickness of the flexible rubber pad is 2.0 mm, the diameter is φ300 mm, and a plurality of size marking lines are drawn on the surface of one end.

3. A portable flexible and deformable film puncturing device according to claim 2, characterized in that: The thickness of the flexible rubber substrate is 3 mm to 5 mm, and the diameter is φ300 mm.

4. A portable flexible and deformable film puncturing device according to claim 3, characterized in that: The puncture needle is cone-shaped, and the cross-sectional size of the end portion is 1.5 mm to 2.0 mm. One end of the puncture needle is solidified and encapsulated in a flexible rubber matrix.

5. A portable flexible and deformable film puncturing device according to claim 4, characterized in that: The distance between two adjacent puncture needles is 3.0 mm to 5.0 mm, and the distance between the puncture end of the puncture needle and the end surface of the flexible rubber substrate is 0.5 mm to 1.0 mm.

6. A method for using a portable flexible and deformable film puncturing device, characterized in that: The method of use is based on the puncture device in claims 1-5, and the method of use further comprises the following steps: Step 1: Select the corresponding size of adhesive film according to the bonding area; Step 2: Clean the flexible rubber pad and puncture mechanism; Step 3: Divide the repair area on the repair component, lay the flexible rubber pad in the repair area, and lay a layer of easy-to-tear cloth film on the upper surface of the flexible rubber pad; Step 4: Align the adhesive film to be used on the upper surface of the flexible rubber pad, align the puncture mechanism with the flexible rubber pad, and place the puncture end of the puncture needle toward the adhesive film; Step 5: Install a vacuum packaging device around the repair area, connect a vacuum pump, evacuate the repair area to negative pressure, and maintain it for 5.0min to 10.0min; Step 6: Disassemble the vacuum packaging device, and take out the adhesive film, puncture mechanism and flexible rubber pad; Step 7: Remove the easily peelable cloth film and release paper on the surface of the film, lay the film inside the repair area, reseal and install the vacuum packaging device, evacuate the air to maintain negative pressure compaction and continue to exhaust for more than 15.0 minutes; Step 8: Disassemble the sealed vacuum device to discharge the pores of the film in the repair area.

7. The method for using the portable flexible and deformable film puncturing device according to claim 6, characterized in that: The vacuum packaging device includes a sealing strip, a breathable felt, a vacuum bag film and a vacuum air nozzle. When laying, the breathable felt is first laid on top of the flexible rubber substrate, the sealing strip is bonded to the repair component around the outer ring of the breathable felt, the bottom of the vacuum bag film is bonded and installed on top of the breathable felt through the sealing strip, and the vacuum air nozzle is installed on the vacuum bag film.

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