An automatic winding device and method for bonding ultra-long fabrics.

Abstract

This invention relates to an automatic winding device and method for bonding ultra-long fabrics. The automatic winding device includes a frame, with mold cores for bonding distributed above the frame. A three-jaw chuck is provided on one side of the frame to fix the mold cores, and a chuck seat that can slide horizontally to accommodate different types of mold cores is provided on the side of the frame away from the three-jaw chuck. The three-jaw chuck is connected to a belt drive mechanism installed in the frame to drive the three-jaw chuck to rotate and thus link the mold cores. The belt drive mechanism is connected to a control switch. This invention achieves automated hose manufacturing, is highly operable, has an easy-to-master process, is suitable for mass production, and can effectively improve production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of aircraft air conditioning system hose production, specifically to an automatic winding device and method for ultra-long fabric bonding. Background Technology

[0002] Aircraft air conditioning hoses are the main channel for delivering air from the engine compartment to the cabin and are essential replacement parts. In some imported aircraft, the hoses within the air conditioning system need to be replaced during repairs. Currently, there is no domestic manufacturing technology for extra-large hoses exceeding 0.5m in length and 35mm in diameter, and sourcing them from abroad is extremely difficult. Therefore, to ensure the normal operation of the aircraft and meet repair needs, it is necessary to provide a technical solution that can address the aforementioned problems.

[0003] The original solution involved purely manual operation, which not only made it difficult to improve efficiency but also significantly affected the uniformity and flatness of the winding. Furthermore, it was impossible to complete the production of ultra-large products with a length of over 0.5m and a diameter of over 35mm by manual operation. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes an automatic winding device and method for bonding ultra-long fabrics. The technical problem to be solved by this invention is achieved through the following technical solution:

[0005] An automatic winding device for bonding ultra-long fabrics includes a frame, with mold cores for bonding distributed on the top of the frame. A three-jaw chuck is provided on one side of the frame to fix the mold cores, and a chuck seat that can slide horizontally to accommodate different types of mold cores is provided on the side of the frame away from the three-jaw chuck. The three-jaw chuck is connected to a belt drive mechanism installed in the frame to drive the three-jaw chuck to rotate so that the mold cores are linked. The belt drive mechanism is connected to a control switch.

[0006] The frame is provided with a bracket, and the card holder is slidably mounted on the bracket. The card holder is provided with a rotating handwheel that cooperates with the mold core to adjust the position of the card holder. The card holder is provided with a chuck that cooperates with a three-jaw chuck to lock the position of the mold core.

[0007] The card holder and chuck are made of polytetrafluoroethylene.

[0008] An automated wrapping method for bonding ultra-long fabrics, comprising the following steps:

[0009] Step 1: Wind a spring with a pitch of 5mm according to the required dimensions;

[0010] Step 2: Stretch and fix the alkali-free glass cloth, and apply glue to one side of it in a vertical crisscross pattern. After applying the glue, let it dry completely.

[0011] Step 3: Engage the right end of the mold core with the chuck, and rotate the rotary handwheel to adjust the position of the chuck so that the mold core engages with the three-jaw chuck to lock the position of the mold core.

[0012] Step 4: Cut the alkali-free glass cloth into 60mm wide strips at a 45° angle. Apply glue to the edge of the glued side of the cut alkali-free glass cloth, with a glue width of 20mm. Let it dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Then, lay the dried alkali-free glass cloth on the mold core, with the glued side of the alkali-free glass cloth facing outwards. Wrap it at a 45° angle, overlapping by 20mm. After overlapping once, turn on the control switch to rotate the mold core, so that the alkali-free glass cloth is evenly wrapped on the mold core.

[0013] Step 5: After winding, remove the mold core and put the spring set on the alkali-free glass cloth. At the same time, adjust the spring pitch to make the spring pitch distribution even. Then, follow the steps in Step 3 to install the mold core, start the control switch to make the mold core rotate, and apply a layer of glue evenly along the spiral direction on the surface of the alkali-free glass cloth and the spring.

[0014] Step 6: Following the operation procedure in step 4, wrap the second layer of alkali-free glass cloth with the adhesive side facing inward and the angle perpendicular to the first layer. After wrapping, the mold core continues to rotate, and at the same time, use rollers to roll along the spiral direction in the middle of the spring pitch to make its surface corrugated.

[0015] Step 7: After rolling, the mold core continues to rotate. Apply adhesive to the surface of the second layer of alkali-free glass cloth along the spiral direction. After applying adhesive, let it dry for 10 to 15 minutes. Then, evenly wrap a layer of glass wire around the spring coil pitch along the rolling marks, and then apply 4 layers of adhesive along the spiral direction.

[0016] Step 8: Place the wound hose semi-finished product together with the mold core into the heating box for vulcanization. After vulcanization, remove the hose semi-finished product from the mold core.

[0017] Step 9: Apply adhesive-coated jersey cloth to the surface of the semi-finished hose, then cut off the processing allowance at both ends of the hose, apply adhesive to the cut ends, and leave it for 24 hours.

[0018] In the second step, apply adhesive to one side of the alkali-free glass cloth in a vertical crisscross pattern 6 to 8 times, drying each time in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. After the adhesive is applied, let it air dry in an environment of 18 to 30 degrees Celsius for 24 to 48 hours to ensure it is completely dry.

[0019] In the fourth step, the alkali-free glass cloth with the adhesive side facing outwards is wrapped at a 45° angle. After wrapping, it is left to dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0020] In step eight, after vulcanizing at (143±2)℃ for 30 minutes, the product is removed and cooled to room temperature.

[0021] The pasting of jersey fabric includes the following steps:

[0022] Step 1: Place the jersey cloth with the reverse side facing up, apply the adhesive evenly, and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Then apply the adhesive a second time and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0023] Step 2: Apply adhesive twice along the spring thread to the surface of the hose semi-finished product. After each application, let it air dry for 10 to 15 minutes in an environment of 18 to 30 degrees Celsius.

[0024] Step 3: Cut the jersey fabric horizontally, paste the jersey fabric onto the surface of the semi-finished tube, overlap by 10mm to 15mm, and apply glue twice at the overlap. After each application of glue, let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0025] Step 4: After overlapping, roll with a roller, then apply glue twice to the seam of the jersey fabric, with a glue width of 5mm to 7mm. After each application of glue, let it dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes, and let it stand for 24 hours after the glue application is completed.

[0026] The beneficial effects of this invention are: this invention realizes automated hose manufacturing, is highly operable, the process method is easy to master, it is suitable for mass production, and can effectively improve production efficiency and product quality. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the winding device structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the hose of the present invention;

[0030] Figure 3 For the present invention Figure 2 A magnified view of I;

[0031] Figure 4 For the present invention Figure 2 Enlarged view of section II.

[0032] The following components are shown in the diagram: 1. Frame; 2. Mold core; 3. Three-jaw chuck; 4. Chassis seat; 5. Belt drive mechanism; 6. Rotary handwheel; 7. Chuck; 8. Control switch; 9. Bracket; 10. Motor; 11. Spring; 12. Alkali-free glass cloth; 13. Sweat cloth; 14. Glass thread. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described more clearly and completely below with reference to the accompanying drawings in the embodiments. Of course, the described embodiments are only a part of the present invention and not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of the present invention.

[0034] like Figure 1 As shown, an automatic winding device for bonding ultra-long fabrics includes a frame 1. A mold core 2 for bonding is distributed above the frame 1. A three-jaw chuck 3 is provided on one side of the frame 1 to fix the mold core 2. A chuck seat 4, which can slide horizontally to accommodate different models of mold core 2, is provided on the side of the frame 1 away from the three-jaw chuck 3. The three-jaw chuck 3 is connected to a belt drive mechanism 5 installed inside the frame 1 to drive the three-jaw chuck 3 to rotate and thus link the mold core 2. The belt drive mechanism 5 is connected to a control switch 8. The mold core 2 is a hollow tubular shape and is distributed to engage with the three-jaw chuck 3 and the chuck 7. The belt drive mechanism 5 is connected to a motor 10 installed inside the frame 1.

[0035] The frame 1 is provided with a bracket 9, and the card holder 4 is slidably mounted on the bracket 9. The card holder 4 is provided with a rotating handwheel 6 that cooperates with the mold core 2 to adjust the position of the card holder 4. The card holder 4 is provided with a chuck 7 that cooperates with the three-jaw chuck 3 to lock the position of the mold core 2. By rotating the rotating handwheel 6, the card holder 4 is driven to slide in the horizontal direction, adjusting the position of the card holder 4 and changing the distance between the three-jaw chuck 3 and the chuck 7, thereby using mold cores 2 of different lengths. The rotating handwheel 6 is threadedly engaged with the bracket 9, and can achieve self-locking after stopping rotation to prevent displacement during processing, which would cause the mold core 2 to fall off.

[0036] The chuck 4 and chuck 7 are made of polytetrafluoroethylene (PTFE), which makes it less likely to damage the mold core 2 during assembly. At the same time, PTFE has a higher coefficient of friction than metal. Using PTFE to process the chuck 7 can ensure that the mold core 2 rotates synchronously with it, and will not cause wear on the mold core 2 and chuck 7 due to slippage.

[0037] hose structure such as Figures 2 to 4 As shown, the spring is 11, the alkali-free glass cloth is 12, the sweat cloth is 13, and the glass wire is 14.

[0038] An automated wrapping method for bonding ultra-long fabrics, comprising the following steps:

[0039] Step 1: Wind a spring with a pitch of 5mm according to the required dimensions;

[0040] Step 2: Stretch and fix the alkali-free glass cloth, and apply glue to one side of it in a vertical crisscross pattern. After applying the glue, let it dry completely.

[0041] Step 3: Engage the right end of the mold core 2 with the chuck 7, and rotate the rotary handwheel 6 to adjust the position of the chuck 7 so that the mold core 2 engages with the three-jaw chuck 3 to lock the position of the mold core 2.

[0042] Step 4: Cut the alkali-free glass cloth into 60mm wide strips at a 45° angle. Apply adhesive to the edge of the cut alkali-free glass cloth with the adhesive side facing outwards, with an adhesive width of 20mm. Let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Then, lay the dried alkali-free glass cloth on the mold core 2, with the adhesive side facing outwards, and wrap it at a 45° angle, overlapping by 20mm. After one overlap, turn on the control switch 8 to rotate the mold core 2, so that the alkali-free glass cloth is evenly wrapped around the mold core 2. If the length of the alkali-free glass cloth is not long enough, two strips of alkali-free glass cloth can be overlapped. When overlapping, apply adhesive to the overlapping end of the alkali-free glass cloth and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0043] Cutting the alkali-free glass cloth at a 45° angle prepares for subsequent 45° winding. Firstly, the winding angle is 45° by keeping the end of the alkali-free glass cloth parallel to the mold core 2. Secondly, after the alkali-free glass cloth is wound, it will deform and stretch to a certain extent when the hose is bent. However, the deformation of the alkali-free glass cloth is small, and it is easy to tear when the bending angle is large. Cutting the alkali-free glass cloth into strips at a 45° angle and winding it can increase its deformation, thereby ensuring the bendability of the hose.

[0044] Step 5: After winding, remove the mold core 2 and place the spring set on the alkali-free glass cloth. At the same time, adjust the spring pitch to make the spring pitch distribution even. Then, following the steps in Step 3, install the mold core 2, start the control switch 8 to rotate the mold core 2, and apply glue to the surface of the alkali-free glass cloth and the spring in the spiral direction. After applying the glue, let it dry for 10 to 15 minutes. Rubber adhesive is used for all glue applications. After the rubber adhesive cures, it has a certain elasticity. Its function is twofold: first, to bond the various components of the hose together; second, to ensure the airtightness of the hose during ventilation.

[0045] Step 6: Following the operation procedure in step 4, wrap the second layer of alkali-free glass cloth, with the adhesive side facing inward and the angle perpendicular to the first layer. After wrapping, the mold core 2 continues to rotate, while using a roller to roll along the spiral direction in the middle of the spring pitch to make its surface corrugated. The two layers of alkali-free glass cloth are in a cross state, so that when the hose is bent, the two layers of alkali-free glass cloth will generate cross forces, making it difficult for the alkali-free glass cloth to unravel from the overlap.

[0046] When wrapping the alkali-free glass cloth in steps four and six, if the length of the alkali-free glass cloth is insufficient, two alkali-free glass cloth strips can be overlapped. Before overlapping, apply a layer of glue to the overlapping end of the alkali-free glass cloth strip and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0047] Step 7: After rolling, the mold core 2 continues to rotate, and adhesive is applied to the surface of the second layer of alkali-free glass cloth in the spiral direction. After applying the adhesive, let it dry for 10 to 15 minutes. Then, evenly wrap a layer of glass wire between the spring coil pitches along the rolling marks, and then apply 4 layers of adhesive in the spiral direction. Apply adhesive to the surface of the second layer of alkali-free glass cloth after rolling to prevent damage to the adhesive layer during rolling. The groove for winding the glass wire is formed by rolling. This process will reduce the length of the spring. If the glass wire is wound directly, the length cannot be adjusted later. After rolling, the spring length can be adjusted first, and then the glass wire can be wound to ensure the length of the threaded part in the final formed hose.

[0048] In the four-layer adhesive application, the first three layers are left to dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes, and the last layer is left to dry in an environment of 18 to 30 degrees Celsius for 12 hours.

[0049] The glass thread can bond two layers of alkali-free glass cloth together, avoiding gaps inside the hose. This results in a better seal and prevents the two layers of adhesive from misaligning when the hose is bent or deformed, thus preventing the hose from becoming unusable after bending.

[0050] Step 8: Place the wound hose semi-finished product together with the mold core 2 into the heating box for vulcanization. After vulcanization, remove the hose semi-finished product from the mold core 2.

[0051] Step 9: Apply jersey cloth to the surface of the semi-finished hose, then cut off the processing allowance at both ends of the hose, apply glue to the cut ends, and leave it for 24 hours; applying jersey cloth can protect the alkali-free glass cloth, make the surface of the hose look beautiful, and also facilitate marking the part number.

[0052] In the second step, apply adhesive to one side of the alkali-free glass cloth in a vertical crisscross pattern 6 to 8 times, drying each time in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. After the adhesive is applied, let it air dry in an environment of 18 to 30 degrees Celsius for 24 to 48 hours to ensure it is completely dry.

[0053] In the fourth step, the alkali-free glass cloth with the adhesive side facing outwards is wrapped at a 45° angle. After wrapping, it is left to dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0054] In step eight, after vulcanizing at (143±2)℃ for 30 minutes, the product is removed and cooled to room temperature.

[0055] The pasting of jersey fabric includes the following steps:

[0056] Step 1: Place the jersey fabric with the reverse side facing up, apply the adhesive evenly, and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Then apply the adhesive a second time and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. The striped side of the jersey fabric is the right side, and the side without stripes is the reverse side.

[0057] Step 2: Apply adhesive twice along the spring thread to the surface of the hose semi-finished product. After each application, let it air dry for 10 to 15 minutes in an environment of 18 to 30 degrees Celsius.

[0058] Step 3: Cut the jersey fabric horizontally, paste the jersey fabric onto the surface of the semi-finished tube, overlap by 10mm to 15mm, and apply glue twice at the overlap. After each application of glue, let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

[0059] Step 4: After overlapping, roll with a roller, then apply glue twice to the seam of the jersey fabric, with a glue width of 5mm to 7mm. After each application of glue, let it dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes, and let it stand for 24 hours after the glue application is completed.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A winding method for an automatic winding device for bonding ultra-long fabrics, wherein the automatic winding device for bonding ultra-long fabrics includes a frame (1), on which a mold core (2) for bonding is distributed, a three-jaw chuck (3) for fixing the mold core (2) is provided on one side of the frame (1), and a chuck seat (4) for sliding horizontally to accommodate different types of mold cores (2) is provided on the side of the frame (1) away from the three-jaw chuck (3), and the three-jaw chuck (3) is connected to a device installed in the frame (1) for driving A belt drive mechanism (5) is used to rotate the three-jaw chuck (3) to link the mold core (2), and the belt drive mechanism (5) is connected to a control switch (8); a bracket (9) is provided on the frame (1), and the chuck seat (4) is slidably mounted on the bracket (9). The chuck seat (4) is provided with a rotating handwheel (6) that cooperates with the mold core (2) to adjust the position of the chuck seat (4), and the chuck seat (4) is provided with a chuck (7) that cooperates with the three-jaw chuck (3) to lock the position of the mold core (2). The feature is that: The method includes the following steps: Step 1: Wind a spring with a pitch of 5mm according to the required dimensions; Step 2: Stretch and fix the alkali-free glass cloth, and apply glue to one side of it in a vertical crisscross pattern. After applying the glue, let it dry completely. Step 3: Engage the right end of the mold core (2) with the chuck (7) and rotate the rotating handwheel (6) to adjust the position of the chuck (7) so that the mold core (2) and the three-jaw chuck (3) can engage to lock the position of the mold core (2); Step 4: Cut the alkali-free glass cloth into 60mm wide strips at a 45° angle. Apply glue to the edge of the glued surface of the cut alkali-free glass cloth with a glue width of 20mm. Let it dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Then lay the dried alkali-free glass cloth on the mold core (2), with the glued surface of the alkali-free glass cloth facing outwards. Wrap it at a 45° angle with a 20mm overlap. After one overlap, turn on the control switch (8) to rotate the mold core (2) so that the alkali-free glass cloth is evenly wrapped on the mold core (2). Step 5: After the winding is completed, remove the mold core (2) and put the spring on the alkali-free glass cloth. At the same time, adjust the spring pitch to make the spring pitch distribution uniform. Then, according to the steps in Step 3, install the mold core (2), start the control switch (8) to make the mold core (2) rotate, and apply a layer of glue evenly along the spiral direction on the surface of the alkali-free glass cloth and the spring. Step 6: Following the operation process of step 4, wrap the second layer of alkali-free glass cloth with the glued side facing inward and the angle perpendicular to the first layer. After the wrapping is completed, the mold core (2) continues to rotate, and at the same time, use rollers to roll along the spiral direction in the middle of the spring pitch to make its surface wavy. Step 7: After the rolling is completed, the mold core (2) continues to rotate and applies glue to the surface of the second layer of alkali-free glass cloth along the spiral direction. After the glue is applied, let it dry for 10 to 15 minutes. Then, evenly wrap a layer of glass wire between the spring coils along the rolling marks and apply 4 layers of glue along the spiral direction. Step 8: Place the wound hose semi-finished product together with the mold core (2) into the heating box for vulcanization. After vulcanization, remove the hose semi-finished product from the mold core (2). Step 9: Apply adhesive-coated jersey cloth to the surface of the semi-finished hose, then cut off the processing allowance at both ends of the hose, apply adhesive to the cut ends, and leave it for 24 hours.

2. The winding method according to claim 1, characterized in that: The card holder (4) and the chuck (7) are made of polytetrafluoroethylene.

3. The winding method according to claim 1, characterized in that: In the second step, apply adhesive to one side of the alkali-free glass cloth in a vertical crisscross pattern 6 to 8 times, drying each time in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. After the adhesive is applied, let it air dry in an environment of 18 to 30 degrees Celsius for 24 to 48 hours to ensure it is completely dry.

4. The winding method according to claim 1, characterized in that: In the fourth step, the alkali-free glass cloth with the adhesive side facing outwards is wrapped at a 45° angle. After wrapping, it is left to dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes.

5. The winding method according to claim 1, characterized in that: In step eight, after vulcanizing at (143±2)℃ for 30 minutes, the product is removed and cooled to room temperature.

6. The winding method according to claim 1, characterized in that: The pasting of jersey fabric includes the following steps: Step 1: Place the jersey cloth with the reverse side facing up, apply the adhesive evenly, and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Then apply the adhesive a second time and let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Step 2: Apply adhesive twice along the spring thread to the surface of the hose semi-finished product. After each application, let it air dry for 10 to 15 minutes in an environment of 18 to 30 degrees Celsius. Step 3: Cut the jersey fabric horizontally, paste the jersey fabric onto the surface of the semi-finished tube, overlap by 10mm to 15mm, and apply glue twice at the overlap. After each application of glue, let it air dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes. Step 4: After overlapping, roll with a roller, then apply glue twice to the seam of the jersey fabric, with a glue width of 5mm to 7mm. After each application of glue, let it dry in an environment of 18 to 30 degrees Celsius for 10 to 15 minutes, and let it stand for 24 hours after the glue application is completed.

Images