Rapid adjusting method for wind power blade web plate mold

Abstract

The invention relates to the technical field of wind power blades, in particular to a wind power blade web mold rapid adjusting method which comprises the steps of web mold size adjustment during blade trial-manufacturing and size adjustment under the condition that the web mold size is increased or decreased in the daily production process. The size of the web plate mold is difficult to be perfectly matched with the height size of the skin of the upper mold and the lower mold in the early stage of production, the web plate and a skin adhesive layer are unstable, and after a gapless web plate is manufactured and an aluminum-plastic plate with the multiple of 2-5 mm is pasted and fixed to the flange of the gapless web plate, the preliminary proper web plate size is obtained; the web size can be adjusted by 2-5 mm times only by removing / adding the aluminum-plastic plate in the subsequent web size adjusting process, the situation that the web mold flange is re-adjusted after being removed is avoided, measurement / positioning errors are reduced, the accuracy and rapidity of web adjustment are greatly improved, and the stability of the web mold size is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine blades, and in particular to a method for quickly adjusting a web mould of a wind turbine blade. Background Art

[0002] Wind turbine blades are the most basic and core components of wind power generation systems. Their good design, reliable quality and superior performance are the decisive factors to ensure the normal and stable operation of the unit. With the development of large-scale blades, the length and number of blades have increased significantly compared with previous blades, and the bonding quality of the web glue layer has become one of the important factors affecting the quality of blades. Therefore, the rapid stabilization of the gap between the web glue layers of trial-produced blades and the rapid adjustment of the gap between the glue layers during daily production have become the bottlenecks for improving the quality / efficiency of blades during manufacturing.

[0003] At present, the dimensions of the web mold in the blade production process are all designed theoretical dimensions or adjusted twice according to the web extension. During the web adjustment process, the ribs of the web mold are adjusted according to the desired glue layer data. The adjusted dimensions are completely dependent on the data measured by a manual ruler / steel ruler to move the ribs. It is difficult to accurately mark the original positioning before the rib is removed. After the rib is removed, secondary welding is performed based on manual measurement, and the positioning accuracy is difficult to guarantee. The above adjustment methods result in serious labor waste and the mold size is difficult to adjust to the ideal state in 1-2 times. In addition, when the web size needs to be reduced, the web size can also be adjusted by sticking fiberglass cloth on the web mold ribs. However, the cloth pads on the web ribs are very easy to fall off during the web demoulding process. As a result, the adjusted size of the web mold cannot be stable and continuous.

[0004] Therefore, we propose a method for rapid adjustment of the web mold of a wind turbine blade. Summary of the invention

[0005] The purpose of the present invention is to provide a method for quickly adjusting a web mould of a wind turbine blade, which solves the problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for quickly adjusting a web mold of a wind turbine blade, comprising the following method steps:

[0007] Step 1: Perform web laying and pouring operations according to web process requirements. Before demoulding the web, mark the web flange according to the whole meter mark of the web mold. The web mark extends from the flange to the area 200mm from the flange on the inner and outer sides of the web. Make sure that the mark line is parallel to the connecting line of the whole meter mark of the upper and lower flanges. After the web is cured, use a temperature gun to measure the surface temperature of the web, and demould it after the temperature drops;

[0008] Step 2: After demoulding, use a cutting machine / angle grinder to cut the process web according to the web flange width to ensure that the web bonding width meets the requirements after cutting. Place the web on the assembly tooling to position the web. Use an integrated tooling with paper tubes and other tools between the webs to support according to the web assembly table data, adjust to meet the required size, and bond the web connecting plate at the full meter position of the web. Bonding must be done from the blade root to the blade tip in sequence. Perform a full inspection every meter to check that the web assembly width meets the requirements.

[0009] Step 3: Remove the auxiliary materials of the skin, process the front and rear edges and the cavity until there is no mold resistance problem in the trial mold. A group of positioning blocks are bonded every 2m on the PS surface from the starting point of the web to the tip of the blade. The leading edge positioning blocks are bonded according to the distance between the front edge web of the PS / SS front edge and the leading edge mold seam. The trailing edge positioning blocks are bonded according to the assembly width or bonding width + 5mm offset from the leading edge positioning blocks to the trailing edge. Lift the web to the PS surface, confirm that the axial starting point of the web is within ±10mm, press down the tooling, fasten the lock, measure the verticality of the web and the horizontal distance from the mold seam every meter, if there is a deviation, adjust the tooling or positioning blocks within the tolerance range, place PP plates at half a meter intervals at the corresponding web bonding positions on the PS main beam, and adjust the pressure plate until the web is completely attached to the PP plate;

[0010] Step 4: Bonding of the web, lay a layer of bag film on the PS beam area, covering the entire beam area, fix it with spray glue or paper tape, lay the bag film flat, use a glue boot to scrape the glue along the positioning block, hang the web, press the web down, collect glue along the inside and outside of the web, and collect glue at a right angle. All operable areas need to collect glue. When collecting glue, check whether there is glue shortage under the web, and fill glue on one side of the missing glue. After the glue collection is completed, it is still necessary to collect glue for the second time while doing reinforcement, and cut off the excess glue along the corner of the web. For the remaining vacuum bag film, hand-lay up 3 layers of 200mm width biaxial cloth at ±10m from the root of the web, hand-lay up 2 layers of 1000mm*200mm biaxial cloth every 1m from 10m to 20m, and hand-lay up 2 layers of 1000mm*200mm biaxial cloth every 2m from 20m to the blade tip. Turn on the mold heater to start curing. If it is unqualified, continue heating. When the PS surface is heated, the SS surface will start the 40-45℃ insulation program simultaneously to prevent misalignment caused by temperature difference when turning the mold;

[0011] Step 5: Identify the web plate resistance points. Lay a layer of bag film on the SS surface beam, press the single component, and pre-close the mold to verify the web plate resistance. If there are resistance points, the web plate needs to be repaired to eliminate the resistance points. After eliminating the resistance points, verification needs to be performed again until there are no resistance points on the web plate.

[0012] Step 6: Secondary bonding: Lay vacuum bags in the bonding area of ​​the rear edge of the SS surface and the SS surface beam area. The width of the vacuum bag covers the surface of the beam. Glue is pushed in the web bonding area at 1.5 times the mold gap to ensure the glue thickness and avoid glue shortage. After the web is pressed down, glue is collected at the right angle edge, at least to the 45m position, to avoid subsequent grinding difficulties.

[0013] Step 7: Mold closing and curing: After turning over, check whether the lock buckles are all locked, measure the hole spacing to be qualified, and perform secondary glue collection on the inside and outside of the web. The glue collection chamfer is a right angle. The glue collection end point is determined according to the actual situation of the blade shape. The operable area is glued as much as possible. The mold heater is turned on at 75℃ and cured for 4 hours. The adhesive is cured until it is not deformed. There is no need to measure Tg.

[0014] Step 8: Loosen the lock and lift up the PS surface. When lifting the mold, observe the cavity and open the mold after no abnormality. During the lifting process, pay attention to fix the web. If there is a risk of falling, use demoulding cloth, straps, etc. to reinforce it. Cut and grind the PS web to reinforce it. Be careful not to damage the shell cloth layer. Use the web lifting tool to lift the web out of the shell, remove the inner connecting plate of the web as a whole, and use an angle grinder to grind the residual structural glue in the non-web bonding flange area.

[0015] Step 9: Remove the web mold rib, grind all the original welding points, and use a marker to mark the web reference line at intervals of 1m along the inner side of the PS rib when removing the web mold rib, ensuring that the marking is clear and accurate. At the same time, clean the surface of the web mold, and hang the web back to the web mold. The axial meter mark of the web should correspond to the meter mark of the mold one by one. At the same time, the inflection point of the PS surface adhesive layer of the web is placed along the PS surface reference line of the web mold, and the chord deviation is ±1mm;

[0016] Step 10: After the web is positioned, fix it by gluing positioning blocks every 5m on both sides of the web. The PS surface and the SS surface are welded from the root to the tip of the blade at the same time. The maximum interval of the welding point is required to be 500mm. The flange steel plate is removed when it is welded to the positioning block. During the welding process, use C-type clamps or pliers to tighten the steel plate and the vertical edge of the web. After tightening, spot weld in turn, check the fit between the steel plate and the vertical surface section by section, and require the gap to be ≤1mm, otherwise rework is required. The bottom steel plate must be completely fitted with the web. If it cannot be fitted due to too large an arc, the bottom fit is guaranteed first. The PS side pad is 6mm and the SS side pad is 6mm on the web mold flange. The height of the aluminum-plastic plate is required to be the same as the height of the mold flange. Each aluminum-plastic plate is glued to the mold flange, and the aluminum-plastic plate is fixed with Teflon after the glue is cured.

[0017] As a preferred embodiment of the present invention, when the size of the web mold is increased, the specific adjustments are as follows:

[0018] According to the thickness of the L10-L20m glue layer on the SS side of the trailing edge web during the trial mold fitting process, it is 10mm-12mm, which does not meet the requirement of the 2-10mm glue layer. It is necessary to reduce the L10-L20m gap on the SS side of the trailing edge web by 3mm, and the SS side size of the trailing edge web mold will increase by 3mm. It is expected that the gap in this area will be around 7mm-9mm after adjustment. First, locate the L10-L20m area on the SS side of the trailing edge web mold, tear off the Teflon film in this area, use a wallpaper knife to cut and remove the 3mm aluminum-plastic plate cushion layer, then remove the aluminum-plastic plate, grind the aluminum-plastic plates at the L10m / L20m positions at a ratio of 1:20 to avoid steps on the web bonding surface, and finally use Teflon film to apply film to the L10-L20m area, continue with web production, and verify the web size.

[0019] As a preferred embodiment of the present invention, when the web plate mold size is reduced, the specific adjustments are as follows:

[0020] According to the 1mm-3mm thickness of the L10-L20m adhesive layer on the SS side of the rear edge web during the trial mold fitting process, it does not meet the requirement of 2-10mm adhesive layer. It is necessary to increase the L10-L20m gap on the SS side of the rear edge web by 3mm, and the SS side size of the rear edge web mold will be reduced by 3mm. It is expected that the gap in this area will be around 4mm-6mm after adjustment. First, locate the L10-L20m area on the SS side of the rear edge web mold, tear off the Teflon film in this area, and use AB glue to firmly fix the 3mm aluminum-plastic plate cushion layer to the edge of the adjustment area, and then grind the newly added aluminum-plastic plates at the two positions of L10m / L20m at a ratio of 1:20 to avoid the step of the web bonding surface. Finally, use Teflon film to paste the L10-L20m area, continue the web production, and verify the web size.

[0021] As a preferred embodiment of the present invention, the PS side pad in step ten is specifically a layer of 3mm + a layer of 3mm aluminum-plastic plate, and the SS side pad is specifically a layer of 3mm + a layer of 3mm aluminum-plastic plate.

[0022] As a preferred embodiment of the present invention, there is no abnormality in step nine, specifically, the web is not adhered to the SS surface, and is normally adhered to the PS surface shell.

[0023] As a preferred embodiment of the present invention, the PP board in step three has a thickness of 4 mm.

[0024] As a preferred embodiment of the present invention, in step one, the web demoulding temperature is less than 45°C.

[0025] As a preferred embodiment of the present invention, when the web is lifted in step 4, the starting point of the web is controlled within ±10 mm.

[0026] As a preferred embodiment of the present invention, the mold curing temperature in step 4 is 75°C.

[0027] As a preferred embodiment of the present invention, the curing standard in step 4 is to test the hardness of the structural adhesive every 5 m, and the structural adhesive hardness ≥ 50HD is qualified.

[0028] As a preferred embodiment of the present invention, in step seven, the curing temperature is 75° C. and the curing time is 4 hours.

[0029] As a preferred embodiment of the present invention, the qualified gap requirement in step ten is that the gap is ≤2-10mm.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The method for quickly adjusting the web mold of a wind turbine blade of the technical solution of the present application is that the size of the web mold is difficult to perfectly match the height size of the upper and lower mold skins in the early stage of production, and the bonding layer between the web and the skin is unstable. By making a gapless web and then sticking and fixing an aluminum-plastic plate with a multiple of 2-5mm on its ribs, a preliminary suitable web size is obtained. In the subsequent process of adjusting the web size, it is only necessary to remove / add the aluminum-plastic plate to adjust the web size by a multiple of 2-5mm, avoiding the need to remove the web mold ribs and then readjust them, reducing the measurement / positioning errors, greatly accelerating the accuracy and rapidity of the web adjustment, and ensuring the stability of the web mold size. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0033] Figure 1 is a cross-sectional view of a wind turbine blade including a web;

[0034] Figure 2 It is a cross-sectional view of the trailing edge web mold including the web.

[0035] In the figure:

[0036] 1. PS skin; 2. SS skin; 3. Leading edge web; 4. Trailing edge web; 5. Web height; 6. Web and skin gap; 7. Web mold flanging; 8. Aluminum-plastic panel. DETAILED DESCRIPTION

[0037] See also Figure 1-2 The present invention provides a technical solution: a method for quickly adjusting a web mold of a wind turbine blade, and the specific operation is as follows:

[0038] Web plate mold size adjustment during blade trial production:

[0039] The web laying and pouring operations are carried out according to the web process requirements. Before demoulding the process web, mark the web flange according to the whole meter mark of the web mold. The web mark extends from the flange to the area 200mm away from the flange on the inner and outer sides of the web. Make sure that the mark line is parallel to the line connecting the whole meter marks of the upper and lower flanges. After the web is cured, use a temperature gun to measure the surface temperature of the web. Demolding can be carried out only when the temperature drops below 45°C.

[0040] After demoulding, use a cutting machine / angle grinder to cut the process web according to the web flange width to ensure that the web bonding width meets the requirements after cutting. Place the web on the assembly tooling to position the web. Use an integrated tooling with paper tubes and other tools between the webs to support according to the web assembly table data and adjust to the required size (if there is an opening problem on the PS / SS side of the web, you can use the corresponding U-shaped tooling). Bond the web connection plate at the full meter position of the web. Bonding must be done from the root to the tip of the blade. Perform a full inspection every meter to check that the web assembly width meets the requirements.

[0041] Removal of auxiliary materials for skin: Process the leading and trailing edges and the cavity until there is no mold resistance problem during the trial mold closing. A group of positioning blocks are bonded to the PS surface every 2m from the starting point of the web to the tip of the blade. The leading edge positioning blocks are bonded according to the distance between the front edge web of the PS / SS front edge and the leading edge mold seam. The trailing edge positioning blocks are bonded according to the assembly width or bonding width + 5mm offset from the leading edge positioning blocks to the trailing edge. Lift the web to the PS surface and confirm that the axial starting point of the web is within ±10mm; press down the tooling, fasten the lock, measure the verticality of the web and the horizontal distance from the mold seam every meter. If there is a deviation, adjust the tooling or positioning blocks to within the tolerance range, place PP plates (thickness 4mm) at half a meter intervals at the corresponding web bonding positions on the PS main beam, and adjust the pressure plate until the web is completely attached to the PP plate.

[0042] Web bonding: Lay a layer of bag film on the PS beam area to cover the entire beam area. Fix it with spray glue or paper tape. The bag film needs to be laid flat. Use a glue boot to scrape glue along the positioning block: Hang the web, and control the starting point of the web within ±10mm; after the web is pressed down, glue is collected along the inside and outside of the web, and the chamfer of the glue collection is a right angle. All operable areas need to be glued. When collecting glue, check whether there is glue shortage under the web, and fill glue on one side of the glue shortage. After the glue collection is completed, it is still necessary to collect glue for the second time while doing reinforcement; cut off the excess vacuum bag film along the corner of the web, and hand-lay 3 layers of 200mm wide biaxial cloth on the web blade root-10m, hand-lay 2 layers of 1000mm*200mm biaxial cloth every 1m from 10m to 20m, and hand-lay 2 layers of 1000mm*200mm biaxial cloth every 2m from 20m to the blade tip. The mold heater is turned on at 75℃ to start curing. The curing standard is to test the hardness of the structural adhesive every 5m. The structural adhesive hardness ≥50HD is qualified. If it is unqualified, it needs to continue heating. When the PS surface is heated, the SS surface is simultaneously started with a 40-45℃ insulation program to prevent misalignment due to temperature difference when turning the mold.

[0043] Identification of web resistance points: Lay a layer of bag film on the SS surface beam, and verify the web resistance by pressing a single component and pre-molding. If there are resistance points, the web needs to be repaired to eliminate the resistance points. After eliminating the resistance points, verification needs to be performed again until there are no resistance points on the web.

[0044] Secondary bonding: Lay vacuum bags in the bonding area of ​​the rear edge of the SS surface and the SS surface beam area. The width of the vacuum bag covers the surface of the beam. Glue is pushed in the web bonding area at 1.5 times the mold gap to ensure the glue thickness and avoid glue shortage. After the web is pressed down, glue is collected at the right angle edge, at least to the 45m position, to avoid subsequent grinding difficulties;

[0045] Mold closing and curing: After turning over, check whether the locks are all locked, measure the hole spacing and see if it is qualified, perform secondary glue collection on the inside and outside of the web, and the glue collection chamfer is a right angle. The glue collection end point is determined according to the actual situation of the blade shape, and glue is collected as much as possible in the operable area. Turn on the mold heater at 75℃ and cure for 4 hours. The adhesive is cured until it is not deformed. There is no need to measure Tg.

[0046] Loosen the lock and lift up the PS surface. Pay attention to observe the cavity when lifting the mold. If there is no abnormality (the web is not adhered to the SS surface, and is normally bonded to the PS surface shell), open the mold. Pay attention to fixing the web during the lifting process. If there is a risk of falling, use demoulding cloth, straps, etc. to reinforce it; cut and grind the PS web to reinforce it, be careful not to damage the shell cloth layer, use the web lifting tool to lift the web out of the shell, remove the inner connecting plate of the web as a whole, and use an angle grinder to grind the residual structural adhesive in the non-web bonding flange area.

[0047] Remove the web mold rib, grind all the original welding points, use a marker to mark the web reference line at 1m intervals along the inner side of the PS rib when removing the web mold rib, ensure that the marking is clear and accurate, clean the web mold surface, and hoist the web back to the web mold. The axial mark of the web should correspond to the mark of the mold one by one. At the same time, the inflection point of the PS surface adhesive layer of the web should be placed along the PS surface reference line of the web mold, and the chord deviation is ±1mm.

[0048] After the web is positioned, fix the positioning blocks every 5m on both sides of the web. The PS surface and the SS surface are welded from the root to the tip of the blade at the same time. The maximum interval of the welding points is required to be 500mm. The flange steel plate is removed when it is welded to the positioning block. During the welding process, use C-type clamps or pliers to tighten the steel plate and the vertical edge of the web. After tightening, spot weld in sequence, check the fit between the steel plate and the vertical surface section by section, and require the gap to be ≤1mm, otherwise rework is required. The bottom steel plate must be completely fitted with the web. If it cannot be fitted due to too large an arc, the bottom fit is guaranteed first. The PS side pad of the web mold flange is 6mm (a layer of 3mm + a layer of 3mm aluminum-plastic plate), and the SS side pad is 6mm (a layer of 3mm + a layer of 3mm aluminum-plastic plate). The height of the aluminum-plastic plate is required to be the same as the height of the mold flange. Each aluminum-plastic plate is glued to the mold flange, and the aluminum-plastic plate is fixed with Teflon after the glue is cured.

[0049] Adjustment of web plate mold size during daily production:

[0050] Increased web mold size:

[0051] According to the thickness of the L10-L20m glue layer on the SS side of the trailing edge web during the trial mold fitting process, it is 10mm-12mm, which does not meet the requirement of 2-10mm glue layer (there is a risk of glue thickness if the glue layer is too thick). It is necessary to reduce the L10-L20m gap on the SS side of the trailing edge web by 3mm, and the size of the SS side of the trailing edge web mold will increase by 3mm. It is expected that the gap in this area will be around 7mm-9mm after adjustment. First, locate the L10-L20m area on the SS side of the trailing edge web mold, tear off the Teflon film in this area, use a wallpaper knife to cut and remove the 3mm aluminum-plastic plate cushion layer, and then remove the aluminum-plastic plate, and grind the aluminum-plastic plates at the L10m / L20m positions at a ratio of 1:20 to avoid steps on the web bonding surface. Finally, use Teflon film to apply film to the L10-L20m area. Continue with web production and verify the web size;

[0052] Web plate mold size reduction:

[0053] According to the 1mm-3mm thickness of the adhesive layer on the SS side of the trailing edge web during the trial mold fitting, it does not meet the requirement of 2-10mm for the adhesive layer (there is a risk of mold resistance if the adhesive layer thickness is too small). It is necessary to increase the gap of the SS side of the trailing edge web by 3mm, and the size of the SS side of the trailing edge web mold will be reduced by 3mm. It is expected that the gap in this area will be around 4mm-6mm after adjustment. First, locate the L10-L20m area on the SS side of the trailing edge web mold, tear off the Teflon film in this area, and use AB glue to firmly fix the 3mm aluminum-plastic plate cushion layer to the edge of the adjustment area. Then, grind the newly added aluminum-plastic plates at the two positions of L10m / L20m at a ratio of 1:20 to avoid steps on the bonding surface of the web. Finally, use Teflon film to film the L10-L20m area, continue the web production, and verify the web size.

[0054] To sum up, in the method for rapid adjustment of the web mold of a wind turbine blade of the present invention, the web mold size is difficult to perfectly match the height size of the upper and lower mold skins in the initial stage of production, and the bonding layer between the web and the skin is unstable. By making a gapless web and then sticking and fixing a 2-5mm aluminum-plastic plate on its ribs, a preliminary suitable web size is obtained. In the subsequent web size adjustment process, it is only necessary to remove / add the aluminum-plastic plate to adjust the web size by multiples of 2-5mm, avoiding the need to remove the web mold ribs and then readjust them, reducing the measurement / positioning errors, greatly accelerating the accuracy and rapidity of the web adjustment, and ensuring the stability of the web mold size.

Claims

1. A method for quickly adjusting a web mold of a wind turbine blade, characterized in that: The method comprises the following steps: Step 1: Perform web laying and pouring operations according to web process requirements. Before demoulding the web, mark the web flange according to the whole meter mark of the web mold. The web mark extends from the flange to the area 200mm from the flange on the inner and outer sides of the web. Make sure that the mark line is parallel to the connecting line of the whole meter mark of the upper and lower flanges. After the web is cured, use a temperature gun to measure the surface temperature of the web, and demould it after the temperature drops; Step 2: After demoulding, use a cutting machine / angle grinder to cut the process web according to the web flange width to ensure that the web bonding width meets the requirements after cutting. Place the web on the assembly tooling to position the web. Use an integrated tooling with paper tubes and other tools between the webs to support according to the web assembly table data, adjust to meet the required size, and bond the web connecting plate at the full meter position of the web. Bonding must be done from the blade root to the blade tip in sequence. Perform a full inspection every meter to check that the web assembly width meets the requirements. Step 3: Remove the auxiliary materials of the skin, process the front and rear edges and the cavity until there is no mold resistance problem in the trial mold. A group of positioning blocks are bonded every 2m on the PS surface from the starting point of the web to the tip of the blade. The leading edge positioning blocks are bonded according to the distance between the front edge web of the PS / SS front edge and the leading edge mold seam. The trailing edge positioning blocks are bonded according to the assembly width or bonding width + 5mm offset from the leading edge positioning blocks to the trailing edge. Lift the web to the PS surface, confirm that the axial starting point of the web is within ±10mm, press down the tooling, fasten the lock, measure the verticality of the web and the horizontal distance from the mold seam every meter, if there is a deviation, adjust the tooling or positioning blocks within the tolerance range, place PP plates at half a meter intervals at the corresponding web bonding positions on the PS main beam, and adjust the pressure plate until the web is completely attached to the PP plate; Step 4: Web bonding. Lay a layer of bag film on the PS beam area, covering the entire beam area, and fix it with spray glue or paper tape. The bag film needs to be laid flat, and use a glue boot to scrape the glue along the positioning block, hang the web, press the web down, and collect the glue along the inside and outside of the web. The chamfer of the glue collection is a right angle. All the operable areas need to collect glue. When collecting glue, check whether there is glue shortage under the web, and fill glue on one side of the glue shortage. After the glue collection is completed, it is still necessary to collect glue for the second time while doing reinforcement. Cut off the excess vacuum bag film along the corner of the web, and fill it at the root of the web ±10m. The body is hand laid up with 3 layers of 200mm wide biaxial cloth, 10m-20m is hand laid up with 2 layers of 1000mm*200mm biaxial cloth every 1m, 20m-tip is hand laid up with 2 layers of 1000mm*200mm biaxial cloth every 2m, the mold heater is turned on to start curing, the curing standard is to test the hardness of the structural glue every 5m, the structural glue hardness ≥50HD is qualified, if not qualified, it needs to continue heating, when the PS surface is heated, the SS surface is simultaneously turned on the 40-45℃ insulation program to prevent misalignment caused by temperature difference when turning the mold; Step 5: Identify the web plate resistance points. Lay a layer of bag film on the SS surface beam, press the single component, and pre-close the mold to verify the web plate resistance. If there are resistance points, the web plate needs to be repaired to eliminate the resistance points. After eliminating the resistance points, verification needs to be performed again until there are no resistance points on the web plate. Step 6: Secondary bonding: Lay vacuum bags in the bonding area of ​​the rear edge of the SS surface and the SS surface beam area. The width of the vacuum bag covers the surface of the beam. Glue is pushed in the web bonding area at 1.5 times the mold gap to ensure the glue thickness and avoid glue shortage. After the web is pressed down, glue is collected at the right angle edge, at least to the 45m position, to avoid subsequent grinding difficulties. Step 7: Mold closing and curing: After turning over, check whether the lock buckles are all locked, measure the hole spacing to be qualified, and perform secondary glue collection on the inside and outside of the web. The glue collection chamfer is a right angle. The glue collection end point is determined according to the actual situation of the blade shape. The operable area is glued as much as possible. The mold heater is turned on for curing. The adhesive is cured until it is not deformed. There is no need to measure Tg. Step 8: Loosen the lock and lift up the PS surface. When lifting the mold, observe the cavity and open the mold after no abnormality. During the lifting process, pay attention to fix the web. If there is a risk of falling, use demoulding cloth, straps, etc. to reinforce it. Cut and grind the PS web to reinforce it. Be careful not to damage the shell cloth layer. Use the web lifting tool to lift the web out of the shell, remove the inner connecting plate of the web as a whole, and use an angle grinder to grind the residual structural glue in the non-web bonding flange area. Step 9: Remove the web mold rib, grind all the original welding points, and use a marker to mark the web reference line at intervals of 1m along the inner side of the PS rib when removing the web mold rib, ensuring that the marking is clear and accurate. At the same time, clean the surface of the web mold, and hang the web back to the web mold. The axial meter mark of the web should correspond to the meter mark of the mold one by one. At the same time, the inflection point of the PS surface adhesive layer of the web is placed along the PS surface reference line of the web mold, and the chord deviation is ±1mm; Step 10: After the web is positioned, fix it by bonding positioning blocks every 5m on both sides of the web. The PS surface and the SS surface are welded from the root to the tip of the blade at the same time. The maximum interval of the welding point is required to be 500mm. The flange steel plate is removed when it is welded to the positioning block. During the welding process, use C-type clamps or pliers to tighten the steel plate and the vertical edge of the web. After tightening, spot weld in sequence, check the fit between the steel plate and the vertical surface section by section, and check whether the gap is qualified, otherwise rework is required. The bottom steel plate must be completely fitted with the web. If it cannot be fitted due to too large an arc, the bottom fit is guaranteed first. The PS side pad of the web mold flange is 6mm, and the SS side pad is 6mm. The height of the aluminum-plastic plate is required to be the same as the height of the mold flange. Each aluminum-plastic plate is glued to the mold flange. After the glue is cured, the aluminum-plastic plate is fixed with Teflon; When the web plate mold size is increased, the specific adjustments are as follows: According to the thickness of the L10-L20m adhesive layer on the SS side of the trailing edge web during the trial mold closing process, which is 10mm-12mm, it does not meet the requirement of 2-10mm adhesive layer. It is necessary to reduce the L10-L20m gap on the SS side of the trailing edge web by 3mm, and the size of the SS side of the trailing edge web mold will increase by 3mm. It is expected that the gap in this area will be around 7mm-9mm after adjustment. First, locate the L10-L20m area on the SS side of the trailing edge web mold, tear off the Teflon film in this area, use a wallpaper knife to cut and remove the 3mm aluminum-plastic plate cushion layer, then remove the aluminum-plastic plate, grind the aluminum-plastic plates at the L10m / L20m positions at a ratio of 1:20 to avoid steps on the web bonding surface, and finally use Teflon film to apply film to the L10-L20m area, continue web production, and verify the web size; When the web mold size is reduced, the specific adjustments are as follows: According to the 1mm-3mm thickness of the L10-L20m adhesive layer on the SS side of the rear edge web during the trial mold fitting process, it does not meet the requirement of 2-10mm adhesive layer. It is necessary to increase the L10-L20m gap on the SS side of the rear edge web by 3mm, and the SS side size of the rear edge web mold will be reduced by 3mm. It is expected that the gap in this area will be around 4mm-6mm after adjustment. First, locate the L10-L20m area on the SS side of the rear edge web mold, tear off the Teflon film in this area, and use AB glue to firmly fix the 3mm aluminum-plastic plate cushion layer to the edge of the adjustment area, and then grind the newly added aluminum-plastic plates at the two positions of L10m / L20m at a ratio of 1:20 to avoid the step of the web bonding surface. Finally, use Teflon film to paste the L10-L20m area, continue the web production, and verify the web size.

2. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: The PS side pad described in step 10 is specifically a layer of 3mm + a layer of 3mm aluminum-plastic plate.

3. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: The SS side pad is specifically composed of one layer of 3mm + one layer of 3mm aluminum-plastic plate.

4. A method for quickly adjusting a wind turbine blade web mold according to claim 1, characterized in that: There is no abnormality in step nine, specifically, the web is not adhered to the SS surface, and is normally adhered to the PS surface shell.

5. The method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: The thickness of the PP board described in step 3 is 4 mm.

6. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: In step one, the web demoulding temperature is less than 45°C.

7. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: When lifting the web in step 4, the starting point of the web is controlled within ±10mm.

8. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: The mold curing temperature in step 4 is 75°C.

9. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: The curing standard in step 4 is to test the hardness of the structural adhesive every 5m, and the structural adhesive hardness ≥50HD is qualified.

10. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: In step seven, the curing temperature is 75° C. and the curing time is 4 h.

11. A method for quickly adjusting a web mold of a wind turbine blade according to claim 1, characterized in that: The qualified gap requirement in step ten is that the gap is ≤2-10mm.

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