Blade stacking pultrusion beam H-shaped anti-occlusion device and forming tool thereof

Abstract

The utility model belongs to the technical field of wind power blade production, and particularly discloses a blade stacking pultrusion beam H-shaped anti-occlusion device which is used for fixing a pultrusion plate of a stacking pultrusion beam and comprises an H-shaped wire clamp, the H-shaped wire clamp comprises a first fixing piece, a second fixing piece and a connecting piece, and the first fixing piece and the second fixing piece are arranged on the two sides of the connecting piece. The connecting piece is connected with the first fixing piece and the second fixing piece to form a first channel and a second channel, and the first channel and the second channel are used for limiting the pultrusion plate. According to the utility model, the H-shaped wire clamps are placed in the stacked pultrusion plates, so that the defects of dislocation, occlusion, rich resin and the like of the pultrusion plates of the stacked pultrusion beams are effectively controlled, thereby improving the quality grade of the blade, reducing the hidden quality hazard caused by the defects, shortening the treatment and circulation time of the blade, and reducing the labor intensity of personnel.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade manufacturing technology, and in particular relates to an H-shaped anti-galling device for stacked pultruded beams of blades and its forming tooling. Background Technology

[0002] With the increasing global demand for clean energy, wind power, as one of the clean energy sources, is developing rapidly. The main beam, as a key component of wind turbine blades, plays a crucial load-bearing role. Currently, the industry commonly assembles main beams by stacking multiple pultruded plates. A profile fixture is needed during the stacking process to assist in positioning the pultruded plates. The stacked pultruded beam formed by multiple plates needs to be placed in a mold for subsequent wind turbine blade manufacturing. The profile fixture needs to be removed before placing the stacked pultruded beam. During the movement of the stacked pultruded beam, due to the relatively long length of individual pultruded plates and the potential for misalignment and interlocking between them, the stability of the stacked pultruded beam cannot be guaranteed. Utility Model Content

[0003] The purpose of this invention is to provide an H-shaped anti-gnawing device for stacked pultruded beams and its forming fixture, so as to solve the problem of misalignment and gnawing of pultruded plates during the placement of stacked pultruded beams in the prior art, which leads to poor stability of the stacked pultruded beams.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: an H-shaped anti-gnawing device for stacked pultruded beams, used to fix the pultruded plates of the stacked pultruded beams, including an H-shaped clamp, wherein the H-shaped clamp includes a first fixing member, a second fixing member, and a connecting member, the first fixing member and the second fixing member are disposed on both sides of the connecting member, and the connecting member is connected to the first fixing member and the second fixing member to form a first channel and a second channel, the first channel and the second channel being used to limit the pultruded plate.

[0005] Furthermore, multiple H-shaped wire clamps are provided, each of which is located between two pultrusion plates. The multiple H-shaped wire clamps are arranged along the length direction of the pultrusion plates and are arranged in a linear array.

[0006] Furthermore, the spacing between two adjacent H-type clamps is 5000mm-15000mm.

[0007] A forming fixture for an H-shaped anti-galling device for stacked blade pultruded beams is provided for forming such a device. The fixture includes a first pultrusion plate mold, a second pultrusion plate mold, and an auxiliary material unit. The first and second pultrusion plate molds are arranged side-by-side. The auxiliary material unit is arranged along the length of the first and second pultrusion plate molds. The auxiliary material unit includes a first auxiliary material component, a first plain weave fabric, a second auxiliary component, a second release film, a guide net, and a vacuum bag film. The first auxiliary material component is wrapped around the outer periphery of both the first and second pultrusion plate molds. The first auxiliary component includes a first release film and a first release fabric laid sequentially from the inside out. Two first plain weave fabrics are provided, each wrapping around the first and second pultrusion plate molds respectively. The extrusion dies are located on opposite sides of each other; the second auxiliary material assembly includes a second plain weave fabric and a second release fabric. There are two second plain weave fabrics, which are respectively laid on the first plain weave fabrics on both sides of the first pultrusion die and the second pultrusion die; there are two second release fabrics, which are respectively laid on both sides of the two second plain weave fabrics. A second release film is laid on one side of the second release fabric, and the flow guide net is laid on the second release film; the flow guide net has a flow channel on its outside, which is arranged along the length of the first pultrusion die and extends to the edge of the flow guide net at both ends. The flow channel has a glue injection port, and the vacuum bag film completely covers the outside of the first pultrusion die, the second pultrusion die, the auxiliary material unit, the flow channel, and the glue injection port.

[0008] Furthermore, the two first plain weave fabrics are wrapped in a "C" shape on the side of the first pultrusion die and the second pultrusion die that are close to each other.

[0009] Furthermore, the width of the second release fabric is greater than the width of the second plain weave fabric.

[0010] Furthermore, a spiral tube is provided on the side of the first pultrusion plate mold away from the guide net. The spiral tube is arranged along the length direction of the first pultrusion plate mold. Both ends of the spiral tube extend to the edge of the first auxiliary material assembly. A second release cloth close to the spiral tube is wrapped around the outer periphery of the spiral tube. One side of the spiral tube is connected to the first air extraction system.

[0011] Furthermore, the second pultrusion plate mold is equipped with a vacuum valve, which is located inside the vacuum bag membrane, and one side of the vacuum valve is connected to the second air extraction system.

[0012] The working principle of this technical solution is as follows:

[0013] (1) The first auxiliary material component is wrapped around the outer periphery of the first pultrusion plate mold and the second pultrusion plate mold respectively. The first pultrusion plate mold and the second pultrusion plate mold are placed side by side, and two first plain weave fabrics are laid on the first pultrusion plate mold and the second pultrusion plate mold on one side close to each other.

[0014] (2) A second auxiliary material assembly is laid on the upper and lower sides of the first plain weave fabric laid on the first pultrusion plate mold and the second pultrusion plate mold. A second isolation membrane, a guide net, a spiral tube and a vacuum valve are arranged on the first pultrusion plate mold and the second pultrusion plate mold. A flow channel is set on the guide net and a glue injection seat is set on the flow channel.

[0015] (3) A spiral tube is arranged on the lower side of the first pultrusion plate mold. A second release cloth close to the spiral tube is wrapped around the surface of the spiral tube. A first air extraction system is connected to the spiral tube, and a hose is connected to the vacuum valve. The other side of the hose is connected to the second air extraction system. The vacuum bag film completely wraps the first pultrusion plate mold, the second pultrusion plate mold, the auxiliary material unit, the flow channel, the injection seat and the vacuum valve, and is connected with a sealing strip at the connection.

[0016] (4) Start the first and second vacuum systems to evacuate the vacuum bag film between the first and second pultrusion plate molds. Then check for air leakage between the vacuum bag film and the first and second pultrusion plate molds. If there is no air leakage, start the external raw material resin supply device to inject raw material resin into the injection port and allow it to permeate through the flow channel to the guide net. The raw material resin then permeates evenly into the cavity through the second isolation membrane. After the raw material resin injection is completed, turn off the first and second vacuum systems to cure the injected raw material resin. Disassemble the first and second pultrusion plate molds. According to the stacked pultrusion plates of different lengths and thicknesses, cut the cured raw material resin into multiple H-shaped wire clips with a length a of 10mm-35mm and a width b of 40mm-70mm. Remove the auxiliary material units from the inner and outer surfaces of the H-shaped wire clips.

[0017] (5) When stacking pultruded plates of different lengths and thicknesses, place multiple H-type wire clamps between the pultruded plates at intervals of 5000mm-15000mm in advance.

[0018] The beneficial effects of this technical solution are as follows: placing H-type clamps on the stacked pultruded plates effectively controls defects such as misalignment, interlocking, and resin enrichment of the pultruded plates in the stacked pultruded beams, thereby improving the quality grade of the blades, reducing hidden quality risks caused by defects, shortening the processing and turnover time of the blades, and reducing the labor intensity of personnel. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of the overall structure of the H-shaped anti-gnawing device for stacked blade pultruded beams according to this utility model;

[0020] Figure 2 This is a front view schematic diagram of the H-type wire clamp of this utility model;

[0021] Figure 3 for Figure 2 Top view diagram;

[0022] Figure 4 This is a cross-sectional schematic diagram of the forming fixture for an H-shaped anti-gnawing device for a blade stacking pultruded beam according to the present invention. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] The reference numerals in the accompanying drawings include: H-type wire clamp 1, first fixing member 2, second fixing member 3, connector 4, first channel 5, second channel 6, pultrusion plate 7, first pultrusion plate mold 8, second pultrusion plate mold 9, first release film 10, first release cloth 11, first plain weave cloth 12, second plain weave cloth 13, second release cloth 14, second release film 15, guide net 16, flow channel 17, injection seat 18, injection port 19, vacuum valve 20, spiral tube 21, vacuum bag film 22.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] The basic implementation examples are as follows: Figure 1-3 The image shows an H-shaped anti-gnawing device for stacked pultruded beams, used to fix the pultruded plates 7 of the stacked pultruded beams. It includes H-shaped wire clamps 1, each comprising a first fixing member 2, a second fixing member 3, and a connecting member 4. The first fixing member 2 and the second fixing member 3 are disposed on both sides of the connecting member 4. The left and right sides of the connecting member 4 are respectively connected to the first fixing member 2 and the second fixing member 3 to form a first channel 5 and a second channel 6, which are used to limit the movement of the pultruded plates 7. Multiple H-shaped wire clamps 1 are provided, each located between two pultruded plates 7, and arranged along the length of the pultruded plates 7 in a linear array. The length of each H-shaped wire clamp 1 is a, specifically 10mm-35mm, and the width of each H-shaped wire clamp 1 is b, specifically 40mm-70mm. The distance between two adjacent H-shaped wire clamps 1 is 5000mm-15000mm.

[0028] Example 2

[0029] The basic implementation examples are as follows: Figure 1-4 As shown: A molding fixture for an H-shaped anti-gnawing device for stacked blade pultruded beams is used to mold the H-shaped anti-gnawing device for stacked blade pultruded beams in Embodiment 1. Two sets of pultruded plates 7 are selected as the first pultruded plate mold 8 and the second pultruded plate mold 9. The molding fixture includes the first pultruded plate mold 8, the second pultruded plate mold 9 and auxiliary material units. The first pultruded plate mold 8 and the second pultruded plate mold 9 are arranged side by side. The auxiliary material units are arranged along the length direction of the first pultruded plate mold 8 and the second pultruded plate mold 9. The auxiliary material units include the first auxiliary material component, the first plain weave fabric 12, the second auxiliary material component, the second isolation film 15, the guide net 16 and the vacuum bag film 22. The first auxiliary material component is wrapped around the outer periphery of the first pultruded plate mold 8 and the second pultruded plate mold 9.

[0030] The first auxiliary material assembly includes a first release membrane 10 and a first release cloth 11 laid sequentially from the inside out. The first release membrane 10 is a non-porous release membrane. The first release membrane 10 and the first release cloth 11 are arranged along the length direction of the first pultrusion die 8 and the second pultrusion die 9. The two ends of the first release membrane 10 and the first release cloth 11 extend beyond the edges of the first pultrusion die 8 and the second pultrusion die 9, and the horizontal distance of the extended portion is 30mm. Two first plain weave fabrics 12 are provided. The two first plain weave fabrics 12 are arranged along the length direction of the first pultrusion die 8 and the second pultrusion die 9, and the two ends of the two first plain weave fabrics 12 extend to the edge of the first auxiliary material assembly. Two first plain weave fabrics 12 are respectively wrapped around the sides of the first pultrusion mold 8 and the second pultrusion mold 9 that are close to each other. The mass density of the first plain weave fabric 12 is 200g / ㎡. Each first plain weave fabric 12 is wrapped around the sides of the first pultrusion mold 8 and the second pultrusion mold 9 that are close to each other in a "C" shape. The horizontal distance between the two sides of the width direction of the first plain weave fabric 12 extending outward from the upper and lower surfaces of the first pultrusion mold 8 and the second pultrusion mold 9 is c, which is 40mm.

[0031] The second auxiliary material component includes a second plain weave fabric 13 and a second release fabric 14. Two of each second plain weave fabric 13 and release fabric 14 are provided. The two second plain weave fabrics 13 are respectively laid on the first plain weave fabric 12 laid side-by-side in the first pultrusion mold 8 and the second pultrusion mold 9. The mass density of the second plain weave fabric 13 is 200 g / m². The two second plain weave fabrics 13 and the second release fabric 14 are arranged along the length direction of the first pultrusion mold 8 and the second pultrusion mold 9, and both ends of the two second plain weave fabrics 13 and the second release fabric 14 extend to the edge of the first auxiliary material component. The two second release fabrics 14 are respectively laid on both sides of the two second plain weave fabrics 13. The two sides of the second release fabric 14 in the width direction extend beyond the two sides of the second plain weave fabric 13, and their edges are arranged on the first release fabric 11. The horizontal distance of the second release fabric 14 extending beyond the second plain weave fabric 13 is d, specifically 50 mm-70 mm.

[0032] A second release film 15 is horizontally laid on the upper surface of the second release fabric 14 located above. A flow guide net 16 is laid on the upper surface of the second release film 15. The second release film 15 and the flow guide net 16 are arranged along the length direction of the first pultrusion mold 8 and the second pultrusion mold 9, and the two ends of the second release film 15 and the flow guide net 16 extend to the edges of the first pultrusion mold 8 and the second pultrusion mold 9. The left side of the flow guide net 16 in the width direction extends beyond the left side of the second plain weave fabric 13 and its edge is arranged on the first release fabric 11. The left side of the flow guide net 16 extends beyond the second plain weave fabric 13 by a horizontal distance e, which is greater than 50mm. The right side of the flow guide net 16 in the width direction is arranged on the second release fabric 14. The horizontal distance between the right side of the flow guide net 16 and the right side of the second plain weave fabric 13 is f, which is the right edge of the flow guide net 16 being recessed inward by 40mm-50mm towards the center. The second isolation membrane 15 is completely attached to the lower side of the guide net 16. The second isolation membrane 15 is a perforated isolation membrane with several vertically arranged holes evenly arranged on it, so that the raw material resin can be evenly penetrated into the molding tool.

[0033] The top of the flow guide net 16 is provided with a flow channel 17, which is arranged along the length of the first pultrusion die 8, and both ends of the flow channel 17 extend to the edge of the flow guide net 16. A glue injection seat 18 is provided in the middle of the flow channel 17. The bottom of the glue injection seat 18 is provided with a through hole that is sleeved on the flow channel 17. The top of the glue injection seat 18 is provided with a glue injection port 19, which is connected to an external raw material resin supply device through a connecting device. A spiral tube 21 for extracting gas is provided on the lower side of the first pultrusion die 8. Both ends of the spiral tube 21 are provided on the first auxiliary material assembly. The spiral tube 21 is arranged along the length of the first pultrusion die 8, and both ends of the spiral tube 21 extend to the edge of the first auxiliary material assembly. A second release cloth 14 close to the spiral tube 21 is wrapped around the surface of the spiral tube 21. One or both sides of the spiral tube 21 are connected to the first vacuum system. If the length of the first pultrusion die 8 and the second pultrusion die 9 is less than 2000 mm, one side of the spiral tube 21 is connected to the first vacuum system. If the length of the first pultrusion die 8 and the second pultrusion die 9 is greater than 2000 mm, both sides of the spiral tube 21 are connected to the first vacuum system. A vacuum valve 20 is placed in the middle of the second pultrusion die 9. Specifically, the vacuum valve 20 is placed on the first release cloth 11. The vacuum bag film 22 completely wraps the first pultrusion die 8, the second pultrusion die 9, the auxiliary material unit, the flow channel 17, the injection seat 18, and the vacuum valve 20. The vacuum bag film 22 is sealed with a sealing strip at its interface edge. A hose is connected to the vacuum valve 20, and the other side of the hose is connected to the second vacuum system.

[0034] The specific implementation process is as follows:

[0035] (1) The first auxiliary material components are wrapped around the outer periphery of the first pultrusion plate mold 8 and the second pultrusion plate mold 9 respectively. The first pultrusion plate mold 8 and the second pultrusion plate mold 9 are placed side by side, and two first plain weave fabrics 12 are laid on the first pultrusion plate mold 8 and the second pultrusion plate mold 9 respectively, close to each other on one side.

[0036] (2) A second auxiliary material assembly is laid on the upper and lower sides of the first plain weave fabric 12 laid on the first pultrusion plate mold 8 and the second pultrusion plate mold 9. A second isolation membrane 15, a flow guide net 16, a spiral tube 21 and a vacuum valve 20 are arranged on the first pultrusion plate mold 8 and the second pultrusion plate mold 9. A flow channel 17 is set on the flow guide net 16 and a glue injection seat 18 is set on the flow channel 17.

[0037] (3) A spiral tube 21 is arranged on the lower side of the first pultrusion plate mold 8. A second release cloth 14 close to the spiral tube 21 is wrapped around the surface of the spiral tube 21. A first air extraction system is connected to the spiral tube 21, and a hose is connected to the vacuum valve 20. The other side of the hose is connected to the second air extraction system. The vacuum bag film 22 completely wraps the first pultrusion plate mold 8, the second pultrusion plate mold 9, the auxiliary material unit, the flow channel 17, the injection seat 18 and the vacuum valve 20, and is connected with a sealing strip at the connection.

[0038] (4) Start the first and second vacuum systems to evacuate the vacuum bag film 22 between the first pultrusion plate mold 8 and the second pultrusion plate mold 9. Then check for air leakage between the vacuum bag film 22 and the first pultrusion plate mold 8 and the second pultrusion plate mold 9. If there is no air leakage, start the external raw material resin supply device to inject raw material resin into the injection port 19 and allow it to permeate through the flow channel 17 onto the guide net 16. The raw material resin permeates evenly into the cavity through the second isolation membrane 15. After the raw material resin injection is completed, turn off the first and second vacuum systems to cure the injected raw material resin. Disassemble the first pultrusion plate mold 8 and the second pultrusion plate mold 9. According to the stacked pultrusion plates 7 of different lengths and thicknesses, cut the cured raw material resin into multiple H-shaped wire clips 1 with a length a of 10mm-35mm and a width b of 40mm-70mm, and remove the auxiliary material units from the inner and outer surfaces of the H-shaped wire clips 1.

[0039] (5) When stacking pultruded plates 7 of different lengths and thicknesses, place multiple H-shaped wire clamps 1 between the pultruded plates 7 at intervals of 5000mm-15000mm.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An H-type anti-galling device for stacked pultruded beams, used to fix the pultruded plates (7) of the stacked pultruded beams, characterized in that: The device includes an H-type wire clamp (1), which includes a first fixing member (2), a second fixing member (3), and a connector (4). The first fixing member (2) and the second fixing member (3) are disposed on both sides of the connector (4). The connector (4) is connected to the first fixing member (2) and the second fixing member (3) to form a first channel (5) and a second channel (6), respectively. The first channel (5) and the second channel (6) are used to limit the pultruded plate (7).

2. The blade stacking pultrusion beam H-type anti-galling device according to claim 1, characterized in that: The H-type wire clamp (1) is provided in multiple ways. Each H-type wire clamp (1) is located between two pultruded plates (7). The multiple H-type wire clamps (1) are arranged along the length direction of the pultruded plates (7) and are arranged in a linear array.

3. The blade stacking pultrusion beam H-type anti-galling device according to claim 2, characterized in that: The distance between two adjacent H-type clamps (1) is 5000mm-15000mm.

4. A molding fixture for an H-type anti-galling device for stacked blade pultruded beams, used for molding the H-type anti-galling device for stacked blade pultruded beams as described in claim 1, characterized in that: The assembly includes a first pultrusion die (8), a second pultrusion die (9), and an auxiliary material unit. The first pultrusion die (8) and the second pultrusion die (9) are arranged side by side. The auxiliary material unit is arranged along the length of the first pultrusion die (8) and the second pultrusion die (9). The auxiliary material unit includes a first auxiliary material component, a first plain weave fabric (12), a second auxiliary material component, a second release film (15), a flow guide net (16), and a vacuum bag film (22). The first auxiliary material component is wrapped around the outer periphery of both the first pultrusion die (8) and the second pultrusion die (9). The first auxiliary material component includes a first release film (10) and a first release cloth (11) laid sequentially from the inside out. There are two first plain weave fabrics (12), which are respectively wrapped around the side of the first pultrusion die (8) and the second pultrusion die (9) that are close to each other. The second auxiliary material component includes a second plain weave fabric (13) and a second release cloth (14). Two second plain weave fabrics (13) are provided, and the two second plain weave fabrics (13) are respectively laid on the first plain weave fabrics (12) on both sides of the first pultrusion plate mold (8) and the second pultrusion plate mold (9); two second release fabrics (14) are provided, and the two second release fabrics (14) are respectively laid on both sides of the two second plain weave fabrics (13), and a second release film (15) is laid on one side of the second release fabric (14), and the guide net (16) is laid on the second On the isolation membrane (15); the outside of the flow guide net (16) is provided with a flow channel (17), the flow channel (17) is arranged along the length direction of the first pultrusion plate mold (8), and the two ends of the flow channel (17) extend to the edge of the flow guide net (16). The flow channel (17) is provided with a glue injection port (19). The vacuum bag film (22) completely covers the outside of the first pultrusion plate mold (8), the second pultrusion plate mold (9), the auxiliary material unit, the flow channel (17) and the glue injection port (19).

5. The forming tooling for an H-type anti-galling device for stacked blade pultruded beams according to claim 4, characterized in that: The two first plain weave fabrics (12) are wrapped in a "C" shape on the side of the first pultrusion die (8) and the second pultrusion die (9) that are close to each other.

6. The forming tooling for an H-shaped anti-galling device for stacked blade pultruded beams according to claim 4, characterized in that: The width of the second release fabric (14) is greater than the width of the second plain weave fabric (13).

7. The forming tooling for an H-shaped anti-galling device for stacked blade pultruded beams according to claim 4, characterized in that: The first pultrusion die (8) is provided with a spiral tube (21) on the side away from the guide net (16). The spiral tube (21) is arranged along the length direction of the first pultrusion die (8). Both ends of the spiral tube (21) extend to the edge of the first auxiliary material assembly. The second release cloth (14) close to the spiral tube (21) is wrapped around the outer periphery of the spiral tube (21). One side of the spiral tube (21) is connected to the first air extraction system.

8. The forming tooling for an H-type anti-galling device for stacked blade pultruded beams according to claim 4, characterized in that: The second pultrusion plate mold (9) is provided with a vacuum valve (20), which is located inside the vacuum bag membrane (22). One side of the vacuum valve (20) is connected to the second air extraction system.

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