A compact automatic glue applying device for wind turbine blade webs

Abstract

The application discloses a compact automatic glue applying device for a wind power blade web, which comprises a glue applying box, a base plate, a glue layer adjusting assembly composed of a glue width adjusting assembly and a glue thickness adjusting assembly, wherein the glue applying box is located below the base plate, the glue layer adjusting assembly is installed at the rear end of the glue applying box in the advancing direction, a driving assembly for driving the glue layer adjusting assembly is installed on the base plate, a support is arranged at the rear end of the driving assembly, a main control assembly is fixedly connected to the upper end of the support, a battery box is arranged at the side end of the main control assembly, an outer shell covering the driving assembly and the main control assembly is sleeved on the base plate, a handle is arranged at the upper end of the outer shell, the material of the glue outlet of the glue applying box is flexible, the glue layer adjusting assembly is used for automatically adjusting the width and height of the glue outlet, and the two sides of the glue outlet are connected with the wind power blade web through telescopic pressing mechanisms and roller supporting mechanisms.

Description

Technical Field

[0001] This application belongs to the field of wind turbine blade adhesive application technology, specifically relating to a compact automatic adhesive application device for the web of a wind turbine blade. Background Technology

[0002] Currently, my country is placing increasing emphasis on the wind power industry, which undoubtedly places stricter demands on the production efficiency and quality of wind turbine blades. In the production process of wind turbine blades, bonding the two halves of the blade with adhesive is a crucial step, especially the web, which is the main load-bearing component of the blade; its bonding quality directly affects the structural strength of the entire blade. Currently, the adhesive application process for wind turbine blades mainly relies on manual operation, often resulting in uneven or excessive application, affecting not only the adhesive quality but also wasting raw materials. Furthermore, existing adhesive application equipment typically requires the installation of guide rails or guide vehicles around the blade, increasing equipment costs and technical complexity. Therefore, developing a compact adhesive application device that can automatically adjust the adhesive type on the wind turbine blade web according to the adhesive application process requirements is of paramount importance for improving adhesive application efficiency and quality.

[0003] The patent application number 202311729625.7, entitled "A Wind Turbine Blade Glue Application Device with Automatic Glue Type Adjustment Based on Glue Application Process," comprises a glue application box, a glue width and thickness adjustment mechanism, and a length measurement feedback control component. The length measurement feedback control component controls the movement of the glue width and thickness adjustment mechanism by measuring the travel distance of the glue application device, thereby adjusting the lateral width and vertical thickness of the glue outlet to meet the required glue size. However, this device lacks a clamping and pressing device, making it prone to tipping over or falling off the web plate during glue application. Utility Model Content

[0004] This application provides a compact automatic adhesive application device for the web of wind turbine blades to solve the technical problem that existing equipment lacks a clamping and pressing device, making it easy for the blade to tip over or fall off the web during adhesive application.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: a compact automatic adhesive application device for the web of a wind turbine blade, comprising: an adhesive application box, a base plate, and an adhesive layer adjustment assembly consisting of an adhesive width adjustment assembly and an adhesive thickness adjustment assembly; the adhesive application box is located below the base plate, and the adhesive layer adjustment assembly is installed at the rear end of the adhesive application box in the forward direction; a drive assembly for driving the adhesive layer adjustment assembly is installed on the base plate; a bracket is provided at the rear end of the drive assembly, and a main control assembly is fixedly connected to the upper end of the bracket; a battery box is provided on the side end of the main control assembly; a shell covering the drive assembly and the main control assembly is sleeved on the base plate; a handle is provided at the upper end of the shell; the adhesive outlet of the adhesive application box is made of a flexible material, and the adhesive layer adjustment assembly is used to automatically adjust the width and height of the adhesive outlet; wherein, the two sides of the adhesive outlet are connected to the web of the wind turbine blade through a telescopic pressing mechanism and a roller support mechanism.

[0006] Furthermore, the telescopic clamping mechanism includes a spring chamber, a compression rod, and a handle frame. One side of the spring chamber is fixed to the outside of the glue outlet. Multiple limiting blocks are provided at the lower end of the inner side of the spring chamber, and springs are connected to the top of the limiting blocks. The lower end of the compression rod passes through the spring chamber and is connected to the handle frame. The upper end of the compression rod is movably passed through the limiting blocks and sleeved in the spring. The top of the compression rod is connected to the spring through a limiting plate. Multiple protruding covers for accommodating the springs are provided on the top of the spring chamber.

[0007] Furthermore, the roller support mechanism includes a roller seat and a roller. The roller seat is connected to the inside of the handle frame via a right-angle hinge, and the roller is connected to the inside of the roller seat via a first rotating shaft.

[0008] Furthermore, the glue application box also includes a glue injection tube and a glue storage tank; the glue injection tube passes through the substrate and connects to the tail of the glue storage tank, and the glue storage tank is connected to the lower rear side of the substrate by a card plate; the front end of the glue outlet is connected to the glue storage tank by a bolt.

[0009] Furthermore, the adhesive width adjustment assembly includes a width adjustment plate; the outer side of the width adjustment plate is connected to the spring housing, and the inner side of the width adjustment plate is connected to the adhesive outlet; a sliding bushing is connected to the upper end of the width adjustment plate; the sliding bushing has a built-in linear bearing and is sleeved on a guide shaft that is parallel to the width direction of the substrate; the middle part of the guide shaft is fixed to the bottom of the substrate through a bearing seat.

[0010] Furthermore, the adhesive thickness adjustment assembly includes an adhesive thickness adjustment plate, an adhesive thickness clamping plate, and a sliding locking component. The adhesive thickness clamping plate is located at the upper end of the top plate of the adhesive outlet, and the adhesive thickness adjustment plate is located at the lower end of the top plate of the adhesive outlet. The adhesive thickness adjustment plate and the adhesive thickness clamping plate are connected by the sliding locking component. One end of the adhesive thickness connector located above the adhesive outlet is connected to the adhesive thickness adjustment plate, and the other end of the adhesive thickness connector is connected to the drive assembly.

[0011] Furthermore, the drive assembly includes a first motor, which is vertically fixed to the middle of the substrate via a first motor mount. The motor shaft of the first motor passes through a through hole in the substrate and is connected to the adhesive thick connector. The end of the motor shaft of the first motor has a threaded rod, which passes through a through hole in the adhesive thick connector and is connected to the adhesive thick connector via a nut.

[0012] Furthermore, the drive assembly also includes a second motor and a ball screw; the two sides of the ball screw are fixed to the upper side of the base plate through rotating shaft seats, and the end of the ball screw located outside one of the rotating shaft seats is connected to a driven synchronous pulley; the second motor is located below the bracket, and the rotating shaft of the second motor is connected to a driving synchronous pulley, and the driving synchronous pulley and the driven synchronous pulley are connected by a synchronous belt; wherein, threaded sliding seats are sleeved on both sides of the ball screw, and the base plate located on both sides of the first motor is provided with a strip groove parallel to the ball screw, and the support rod of the threaded sliding seat passes through the strip groove and is connected to the sliding shaft sleeve.

[0013] Furthermore, a length measuring assembly is connected to the rear side of the substrate. The length measuring assembly includes a fixed plate, a photoelectric encoder, and a length measuring wheel. An extension plate is provided at the rear end of the substrate, and a first connecting seat is provided below the extension plate. A second rotating shaft is provided in the first connecting seat. One end of the fixed plate is sleeved on the second rotating shaft. The other end of the fixed plate is provided with a photoelectric encoder. The rotating shaft of the photoelectric encoder passes through the fixed plate, and the length measuring wheel is installed on the rotating shaft of the photoelectric encoder on the other side of the fixed plate. The first connecting seat is provided with a shaft hole for sleeved on the rotating shaft, and the shaft hole and the lower end of the first connecting seat are provided with an opening. An adjusting bolt for adjusting the tightness of the opening passes through the side end of the first connecting seat.

[0014] The beneficial effects of this application are as follows: The spring-loaded telescopic clamping mechanism ensures the adhesive application device adheres tightly to the adhesive application surface of the wind turbine blade, preventing tipping or falling. Simultaneously, this mechanism can fit different sized wind turbine blades, meeting various blade adhesive application needs. The roller support mechanism facilitates the smooth movement of the adhesive application device on the wind turbine blade web. This application incorporates a series of compact and refined designs for the spring-loaded telescopic clamping mechanism, roller support mechanism, and connection methods, resulting in a small overall footprint. Furthermore, it ensures the adhesive application device maintains accuracy, stability, and efficiency when applying adhesive to the wind turbine blade web. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the compact automatic adhesive application device for the web of wind turbine blades according to this application;

[0016] Figure 2 This is a schematic diagram of another embodiment of the compact automatic adhesive application device for the web of wind turbine blades of this application;

[0017] Figure 3 yes Figure 2 A schematic diagram of the structure of an embodiment of the telescopic clamping mechanism;

[0018] Figure 4 yes Figure 3 A cross-sectional structural schematic diagram of an embodiment of the telescopic clamping mechanism in the image;

[0019] Figure 5 yes Figure 2 A schematic diagram of the structure of an embodiment of the glue application box;

[0020] Figure 6 yes Figure 2 A schematic diagram of the structure of an embodiment of the adhesive width adjustment component;

[0021] Figure 7 yes Figure 2 A schematic diagram of the structure of a driving component in one embodiment;

[0022] Figure 8 yes Figure 2 A schematic diagram of the structure of an embodiment of the length measuring component;

[0023] Figure 9 yes Figure 8 A schematic diagram of the structure of one embodiment of the first connecting seat. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figure 1-9 As shown, this application discloses a compact automatic adhesive application device for the web of a wind turbine blade, comprising: an adhesive application box 1, a substrate 2, and an adhesive layer adjustment assembly consisting of an adhesive width adjustment assembly 5 and an adhesive thickness adjustment assembly 6; the adhesive application box 1 is located below the substrate 2, and the adhesive layer adjustment assembly is installed at the rear end of the adhesive application box 1 in the forward direction; a drive assembly 3 for driving the adhesive layer adjustment assembly is installed on the substrate 2; a bracket 41 is provided at the rear end of the drive assembly 3, and a main control assembly 4 is fixedly connected to the upper end of the bracket 41; a battery box 42 is provided on the side end of the main control assembly 4; a shell 21 covering the drive assembly 3 and the main control assembly 4 is sleeved on the substrate 2; a handle 22 is provided at the upper end of the shell 21; the adhesive outlet 11 of the adhesive application box 1 is made of a flexible material, and the adhesive layer adjustment assembly is used to automatically adjust the width and height of the adhesive outlet 11; wherein, the two sides of the adhesive outlet 11 are connected to the web of the wind turbine blade 10 through a telescopic pressing mechanism 7 and a roller support mechanism 8. The adhesive layer adjustment component in the adhesive application box 1 designed above is made of flexible material, which facilitates the adjustment of its width and thickness. Simultaneously, the connection between the flexible adhesive outlet 11 and the rigid components is easily detachable, allowing for convenient cleaning of residual adhesive on the adhesive application device and replacement of the flexible adhesive cartridge. Furthermore, the spring-loaded tensioning mechanism 7 ensures that the adhesive application device remains tightly against the adhesive application surface of the web 10, preventing tipping or falling. This mechanism can also accommodate webs 10 of different sizes, meeting the adhesive application needs of various blades.

[0026] The telescopic clamping mechanism 7 includes a spring housing 71, a compression rod 72, and a handle bracket 73. One side of the spring housing 71 is fixed to the outside of the glue outlet 11. Multiple limiting blocks 74 are provided at the lower inner end of the spring housing 71, and springs 75 are connected to the top of the limiting blocks 74. The lower end of the compression rod 72 passes through the spring housing 71 and is connected to the handle bracket 73. The upper end of the compression rod 72 movably passes through the limiting blocks 74 and is sleeved in the spring 75. The top of the compression rod 72 is connected to the spring 75 via a nut 77. Multiple protruding caps 76 are provided on the top of the spring housing 71 to accommodate the springs 75. In this design, the compression rod 72 can extend and retract within the spring housing 71 via the springs 75, thereby controlling the distance between the handle bracket 73 and the spring housing 71. When no force is applied, the springs 75 maintain a certain distance from the protruding caps 76, ensuring that the compression rod 72 does not contact the protruding caps 76 when retracted into the spring housing 71. When the handle 73 moves downward, the nut 77 will compress the spring 75, and the resulting elastic force will act on the bottom surface of the web plate 10 through the right-angle hinge 83 and the roller support mechanism 8, ensuring that the glue application device is pressed tightly against the glue application surface of the web plate 10 and preventing it from falling off.

[0027] The roller support mechanism 8 includes a roller seat 81 and a roller 82. The roller seat 81 is connected to the inner side of the handle frame 73 via a right-angle hinge 83, and the roller 82 is connected to the inner side of the roller seat 81 via a first rotating shaft 84. In the above design, the roller 82 is connected to the handle frame 73 via the first rotating shaft 84, the roller seat 81, and the right-angle hinge 83. Under the action of the spring force 75, the roller 82 abuts against the fan blade web 10 from the lower end and rolls.

[0028] The glue application box 1 also includes a glue injection tube 12 and a glue storage tank 13; the glue injection tube 12 passes through the substrate 2 and is connected to the tail of the glue storage tank 13, the glue storage tank 13 is connected to the lower rear side of the substrate 2 by a card plate 14, and the front end of the glue outlet 11 is connected by a bolt.

[0029] It is connected to the glue storage tank 13. The glue storage tank 13 in the above design can be used to receive the glue injected by the glue injection tube 12, and then input it into the glue outlet 11 for application.

[0030] The glue width adjustment assembly 5 includes a width adjustment plate 51; the outer side of the width adjustment plate 51 is connected to the spring housing 71, and the inner side of the width adjustment plate 51 is connected to the glue outlet 11; a sliding bushing 52 is connected to the upper end of the width adjustment plate 51; the sliding bushing 52 has a built-in linear bearing and is sleeved on a guide shaft 53 arranged parallel to the width direction of the base plate 2; the middle part of the guide shaft 53 is fixed to the bottom of the base plate 2 through a bearing seat 54. In the above design, the width adjustment plate 51 can control the width of the glue outlet 11 by moving the sliding bushing 52 back and forth, so as to adapt to the fan blades 10 with different width specifications.

[0031] The adhesive thickness adjustment assembly 6 includes an adhesive thickness adjustment plate 61, an adhesive thickness clamping plate 62, and a sliding locking component 63. The adhesive thickness clamping plate 62 is located at the upper end of the top plate of the adhesive outlet 11, and the adhesive thickness adjustment plate 61 is located at the lower end of the top plate of the adhesive outlet 11. The adhesive thickness adjustment plate 61 and the adhesive thickness clamping plate 62 are connected by the sliding locking component 63. One end of the adhesive thickness connector 64 located above the adhesive outlet 11 is connected to the adhesive thickness adjustment plate 61, and the other end of the adhesive thickness connector 64 is connected to the drive assembly 3. In the above design, the adhesive thickness adjustment plate 61 can be raised and lowered through the connector, thereby changing the thickness of the adhesive outlet 11.

[0032] The drive assembly 3 includes a first motor 31, which is vertically fixed to the middle of the substrate 2 via a first motor base 32. The motor shaft of the first motor 31 passes through a through hole in the substrate 2 and is connected to the adhesive thickness connector 64. The end of the motor shaft of the first motor 31 has a threaded rod 33, which passes through a through hole in the adhesive thickness connector 64 and is connected to the adhesive thickness adjusting plate 61 connector via a nut 65. In the above design, the first motor 31 drives the threaded rod to extend and retract, thereby adjusting the lifting and lowering of the adhesive thickness connector 64 and the adhesive thickness adjusting plate 61, and ultimately adjusting the thickness of the adhesive outlet 11.

[0033] The drive assembly 3 also includes a second motor 34 and a ball screw 35. The ball screw 35 is fixed to the upper side of the base plate 2 via rotating shaft seats 36 on both sides. A driven synchronous pulley 37 is connected to the end of the ball screw 35 located outside one of the rotating shaft seats 36. The second motor 34 is positioned below the bracket 41. A driving synchronous pulley 38 is connected to the motor shaft end of the second motor 34. The driving synchronous pulley 38 and the driven synchronous pulley 37 are connected via a synchronous belt 371. Threaded sliding seats 39 are sleeved on both sides of the ball screw 35. A strip groove 23 parallel to the ball screw 35 is provided in the base plate 2 located on both sides of the first motor 31. The support rod of the threaded sliding seat 39 passes through the strip groove 23 and connects to the sliding bushing 52. In the above design, the second motor 34 drives the driving synchronous pulley 38 to rotate the driven synchronous pulley 37, thereby rotating the ball screw 35. Ultimately, this drives the threaded sliding seat 39 connected to the sliding bushing 52 on the screw to move, completing the adjustment of the width of the dispensing nozzle 11.

[0034] A length measuring component 9 is connected to the rear side of the substrate 2. The length measuring component 9 includes a fixed plate 91, a photoelectric encoder 92, and a length counting wheel 93. An extension plate 24 is provided at the rear end of the substrate 2. A first connecting seat 94 is provided below the extension plate 24. A second rotating shaft 95 is provided in the first connecting seat 94. One end of the fixed plate 91 is sleeved on the second rotating shaft 95. The other end of the fixed plate 91 is provided with a photoelectric encoder 92. The rotating shaft of the photoelectric encoder 92 passes through the fixed plate 91, and the length counting wheel 93 is installed on the rotating shaft of the photoelectric encoder 92 on the other side of the fixed plate 91. The first connecting seat 94 is provided with a shaft hole 941 for sleeved on the second rotating shaft 95. The shaft hole 941 and the lower end of the first connecting seat 94 are provided with an opening 942. An adjusting bolt 943 for adjusting the tightness of the opening 942 is provided on the side end of the first connecting seat 94. In the above design, the counting wheel 93 can contact the track or adhesive application surface on which the adhesive application box 1 is installed. The photoelectric encoder 92 calculates the moving distance of the adhesive application box 1 by counting the number of rotations of the counting wheel 93. The adjusting bolt 943 can adjust the tightness of the opening 942, thereby adjusting the direction of the second rotating shaft 95 and controlling the direction of the fixing plate 91, so that the counting wheel 93 is always in contact with the track or adhesive application surface.

[0035] The main control component 4 is connected to the first motor 31, the second motor 34, the battery box 42, and the length measuring component 9. The main control chip of the main control component 4 is an STM32 microcontroller. According to the designed program, it realizes functions such as determining the position of the glue applicator and controlling the motion of the drive motor. The main control component 4 can obtain the displacement of the glue applicator through the length measuring component 9, thereby determining the position of the glue applicator, and thus controlling the motion of the first motor 31 and the second motor 34 in the glue layer adjustment mechanism to adjust the width and thickness of the glue outlet 11.

[0036] The specific work plan involves first placing the adhesive application device at the starting point of adhesive application on the surface of the wind turbine blade web 10. Then, according to the actual dimensions of the web 10, pull the handle 73. This causes the spring 75 to extend and retract, compressing the tension mechanism 7. The resulting elastic force is then applied to the bottom surface of the web 10 via the roller support mechanism 8, ensuring the adhesive application device is firmly pressed against the web 10 surface and preventing tipping. After completion, start the adhesive application device and push it forward. The length measuring device transmits distance information to the control system in real time. The control system then adjusts the adhesive width adjustment plate 51 and adhesive thickness adjustment plate 61 to appropriate positions via the first motor 31 and the second motor 34, ensuring that the adhesive applied to the surface of the web 10 through the adhesive outlet 11 meets the process requirements. The entire process is repeated continuously according to the adhesive application process requirements until the application is complete.

[0037] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A compact automatic adhesive application device for the web of a wind turbine blade, characterized in that, include: The adhesive layer adjustment assembly consists of an adhesive application box, a substrate, and adhesive width adjustment components and adhesive thickness adjustment components; The glue application box is located below the substrate, and the glue layer adjustment assembly is installed at the rear end of the glue application box in the forward direction. A drive assembly for driving the glue layer adjustment assembly is installed on the substrate. A bracket is provided at the rear end of the drive assembly, and a main control assembly is fixedly connected to the upper end of the bracket. A battery box is provided on the side end of the main control assembly. A shell covering the drive assembly and the main control assembly is sleeved on the substrate. A handle is provided at the upper end of the shell. The glue outlet of the glue application box is made of flexible material, and the glue layer adjustment assembly is used to automatically adjust the width and height of the glue outlet. The glue outlet is connected to the web of the wind turbine blade on both sides through a telescopic pressing mechanism and a roller support mechanism.

2. The compact automatic adhesive application device for the web of a wind turbine blade according to claim 1, characterized in that, The telescopic clamping mechanism includes a spring housing, a compression rod, and a handle frame. One side of the spring housing is fixed to the outside of the glue outlet. Multiple limiting blocks are provided at the lower inner side of the spring housing, and springs are connected to the top of the limiting blocks. The lower end of the compression rod passes through the spring housing and is connected to the handle frame. The upper end of the compression rod is movably passed through the limiting blocks and sleeved in the spring. The top of the compression rod is connected to the spring through a nut. Multiple protruding caps for accommodating the springs are provided on the top of the spring housing.

3. The compact automatic adhesive application device for the web of a wind turbine blade according to claim 2, characterized in that, The roller support mechanism includes a roller seat and a roller. The roller seat is connected to the inside of the handle frame via a right-angle hinge, and the roller is connected to the inside of the roller seat via a first rotating shaft.

4. The compact automatic adhesive application device for the web of a wind turbine blade according to claim 2, characterized in that, The glue application box also includes a glue injection tube and a glue storage tank; the glue injection tube passes through the substrate and is connected to the tail of the glue storage tank, and the glue storage tank is connected to the lower rear side of the substrate by a card plate; the front end of the glue outlet is connected to the glue storage tank by a bolt.

5. A compact automatic adhesive application device for the web of a wind turbine blade according to claim 4, characterized in that, The adhesive layer adjustment assembly includes an adhesive width adjustment assembly and an adhesive thickness adjustment assembly; the adhesive width adjustment assembly is installed on both sides of the glue application box and connected to the spring housing, and the adhesive thickness adjustment assembly is installed on the upper end of the glue application box.

6. A compact automatic adhesive application device for the web of a wind turbine blade according to claim 5, characterized in that, The adhesive width adjustment assembly includes a width adjustment plate; the outer side of the width adjustment plate is connected to the spring housing, and the inner side of the width adjustment plate is connected to the adhesive outlet; a sliding bushing is connected to the upper end of the width adjustment plate; the sliding bushing has a built-in linear bearing and is sleeved on a guide shaft arranged parallel to the width direction of the substrate; the middle part of the guide shaft is fixed to the bottom of the substrate through a bearing seat.

7. A compact automatic adhesive application device for the web of a wind turbine blade according to claim 6, characterized in that, The adhesive thickness adjustment assembly includes an adhesive thickness adjustment plate, an adhesive thickness clamping plate, and a sliding locking component. The adhesive thickness clamping plate is disposed at the upper end of the top plate of the adhesive outlet, and the adhesive thickness adjustment plate is disposed at the lower end of the top plate of the adhesive outlet. The adhesive thickness adjustment plate and the adhesive thickness clamping plate are connected by the sliding locking component. One end of the adhesive thickness connector located above the adhesive outlet is connected to the adhesive thickness adjustment plate, and the other end of the adhesive thickness connector is connected to the drive assembly.

8. A compact automatic adhesive application device for the web of a wind turbine blade according to claim 7, characterized in that, The drive assembly includes a first motor, which is vertically fixed to the middle of the substrate via a first motor mount. The motor shaft of the first motor passes through a through hole in the substrate and is connected to the adhesive connector. The end of the motor shaft of the first motor has a threaded rod, which passes through a through hole in the adhesive connector and is connected to the adhesive connector via a nut.

9. A compact automatic adhesive application device for the web of a wind turbine blade according to claim 8, characterized in that, The drive assembly further includes a second motor and a ball screw; the two sides of the ball screw are fixed to the upper side of the base plate via rotating shaft seats, and a driven synchronous pulley is connected to the end of the ball screw located outside one of the rotating shaft seats; the second motor is disposed below the bracket, and the rotating shaft of the second motor is connected to a driving synchronous pulley, and the driving synchronous pulley and the driven synchronous pulley are connected by a synchronous belt; wherein, threaded sliding seats are sleeved on both sides of the ball screw, and the base plate located on both sides of the first motor is provided with a strip groove parallel to the ball screw, and the support rod of the threaded sliding seat passes through the strip groove and is connected to the sliding shaft sleeve.

10. A compact automatic adhesive application device for the web of a wind turbine blade according to claim 1, characterized in that, A length measuring assembly is connected to the rear side of the substrate. The length measuring assembly includes a fixed plate, a photoelectric encoder, and a length measuring wheel. An extension plate is provided at the rear end of the substrate. A first connecting seat is provided below the extension plate, and a second rotating shaft is provided in the first connecting seat. One end of the fixed plate is sleeved on the second rotating shaft. The photoelectric encoder is provided at the other end of the fixed plate. The rotating shaft of the photoelectric encoder passes through the fixed plate, and the length measuring wheel is installed on the rotating shaft of the photoelectric encoder on the other side of the fixed plate. The first connecting seat has a shaft hole for sleeved on the rotating shaft, and the shaft hole and the lower end of the first connecting seat have an opening. An adjusting bolt for adjusting the tightness of the opening passes through the side end of the first connecting seat.

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