A self-positioning auxiliary glue injection device for wind turbine blade production

Abstract

The present invention relates to the technical field of wind turbine blade production, and in particular to a self-positioning auxiliary glue injection device for wind turbine blade production. The device comprises a base, a glue storage tank is arranged on the base, a positioning wheel is rotatably connected to the base; a plurality of extrusion mechanisms are arranged on the side wall of the positioning wheel, a force block is also arranged on the side wall of the positioning wheel, and a pressure sensor is arranged on the force block; two groups of steering wheels are arranged at the bottom end of the base, and a steering motor is installed on one side wall of the mounting plate; a vertical plate is fixedly connected to the base, and a glue injection assembly is arranged on the vertical plate; the base is moved to one side of a wind turbine blade mold, so that the positioning wheel fits with the side wall of the wind turbine blade mold, and the pressure value change trend between the positioning wheel and the side wall of the wind turbine blade mold is detected by the pressure sensor, and the steering motor is controlled to drive the base to turn, so as to realize the self-positioning operation of the glue injection assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of wind turbine blade production, and in particular relates to a self-positioning auxiliary glue injection device for wind turbine blade production. Background Art

[0002] In the wind turbine blade manufacturing process, the blade is usually divided into two halves, the upper and lower halves, which are manufactured separately. Then, the two halves are molded and pasted together using adhesive. When the molds are molded together, a glue pushing device is required to glue the two halves together. Therefore, there are high requirements on the amount of adhesive used, the location of the glue application, and the shape of the adhesive in order to achieve the corresponding performance indicators.

[0003] In existing operations, the glue pushing equipment is usually operated by staff, which is prone to deviation, directly leading to uneven distribution of adhesive, that is, there is more glue in some places and less glue in some places. During the later bonding, the places with more glue will stagnate and cause waste, and the places with less glue will not be sticky enough, which will affect the mold bonding effect of the blade; if a guide rail is set on the surface of the blade for guiding the movement of the glue pushing equipment, the guide rail needs to be laid before pushing the glue, and the guide rail that may come into contact with the adhesive needs to be removed after pushing the glue, which is time-consuming, labor-intensive and labor-intensive.

[0004] After searching, in the prior art, announcement number: CN208452333U, announcement date: 2019-02-01, discloses a wind turbine blade glue pushing device, including: a glue pushing frame, a glue injection tube and a glue outlet adjustment mechanism. L-shaped slide rails are fixedly connected to the two sides of the bottom of the glue pushing frame respectively. The glue outlet adjustment mechanism includes a scraper plate and a limit block. The present application has a simple structure and is easy to use. The height of the glue outlet below the scraper plate can be adjusted through the waist-shaped hole, so as to adjust the thickness of the glue according to the performance requirements. The L-shaped slide rails fixedly connected to the two sides of the bottom of the glue pushing frame are stuck on both sides of the half-piece frame, which can ensure that the glue pushing device runs smoothly along the extension direction of the half-piece without deviation. The triangular glue outlet structure can squeeze out the air in the glue pushing frame and will not mix into the adhesive, thereby preventing bubbles from affecting the gluing effect.

[0005] However, the device still has the following defects: although it can ensure that the glue pushing device runs smoothly along the extension direction of the half sheet without deviation, the glue pushing device needs to lay a guide rail before use, and after pushing the glue, the guide rail that may come into contact with the adhesive needs to be removed, which is time-consuming, labor-intensive and labor-intensive. Summary of the invention

[0006] In view of the above problems, the present invention provides a self-positioning auxiliary glue injection device for wind turbine blade production, comprising a base, a glue storage tank is arranged on the base, and a positioning wheel is rotatably connected to the base;

[0007] The side wall of the positioning wheel is provided with a plurality of extrusion mechanisms, and the side wall of the positioning wheel is also provided with a force block, and the force block is provided with a pressure sensor;

[0008] Two sets of steering wheels are arranged at the bottom end of the base, a mounting plate is arranged inside the base, and a steering motor is installed on one side wall of the mounting plate;

[0009] A vertical plate is fixedly connected to the base, and a glue injection component is arranged on the vertical plate;

[0010] By moving the base to one side of the wind turbine blade mold, the positioning wheel is fitted with the side wall of the wind turbine blade mold, and the pressure value change trend between the positioning wheel and the side wall of the wind turbine blade mold is detected by the pressure sensor, and the steering motor is controlled to drive the base to turn, thereby realizing the self-positioning operation of the injection component.

[0011] Furthermore, two groups of driving wheels are arranged at the bottom end of the base, a linkage shaft is arranged between the centers of the two groups of driving wheels, a driving motor is installed at the bottom end of the base, and the output end of the driving motor is transmission-connected to the center of one group of driving wheels.

[0012] Furthermore, the top of the glue storage tank is rotatably connected to a driven pulley, the center of the positioning wheel is fixedly connected to a rotating shaft, the top of the rotating shaft is provided with a driving pulley, a belt is sleeved between the driving pulley and the driven pulley, a rotating tube is provided in the glue storage tank, a plurality of stirring rods are staggered on the rotating tube, a plurality of glue guide holes are opened on the rotating tube, the top of the rotating tube is connected to a rotating joint, the rotating joint passes through the center of the driven pulley and is connected to a glue extraction hose.

[0013] Furthermore, the side wall of the positioning wheel is provided with several groups of sliding grooves, the extrusion mechanism includes an extrusion plate, one side wall of the extrusion plate is provided with two groups of linkage blocks, both groups of linkage blocks are provided with a first sliding shaft, a first spring is provided between the linkage block and the corresponding group of sliding grooves, the other side wall of the force-bearing block is provided with a second sliding shaft, and a second spring is provided between the force-bearing block and the corresponding group of sliding grooves.

[0014] Furthermore, a recovery pump is provided on the glue storage tank, the output end of the recovery pump is connected to the interior of the glue storage tank, the input end of the recovery pump is connected to a recovery pipe, and the glue injection assembly and the glue extraction pipe are connected to each other through a hose.

[0015] Furthermore, the bottom end of the base is rotatably connected to two groups of steering brackets, and the two groups of steering wheels are respectively installed on the two groups of steering brackets. The base is a hollow structure, and the output end of the steering motor is transmission-connected to a transmission shaft, and two groups of driving bevel gears are arranged on the transmission shaft. Both groups of driving bevel gears are meshingly connected to driven bevel gears, and the centers of the two groups of driven bevel gears are respectively fixedly connected to the two groups of steering brackets.

[0016] Furthermore, a storage groove is provided on the vertical plate, an electric push rod is installed on the inner wall of the storage groove, the output end of the electric push rod is transmission-connected to a recovery funnel, and the bottom end of the recovery funnel is connected to a guide pipe.

[0017] Furthermore, the glue injection assembly includes a crossbeam, a first slide groove and a second slide groove are provided on the crossbeam, and limiting grooves are provided on both side walls of the crossbeam, a glue discharge mechanism is provided on the crossbeam, and the glue discharge mechanism is movably fitted with the first slide groove, a glue guiding mechanism is provided on the crossbeam, and the glue guiding mechanism is movably fitted with the second slide groove, an electric turntable is provided at the top center of the crossbeam, a clamping block is provided on the electric turntable, a first linkage rod is rotatably connected to the clamping block, and the other end of the first linkage rod is rotatably connected to the glue discharge mechanism, a second linkage rod is rotatably connected to the clamping block, and the second linkage rod is rotatably connected to the glue guiding mechanism.

[0018] Furthermore, the glue discharging mechanism includes a glue injection tube, and the side wall of the glue injection tube is symmetrically provided with two groups of limit blocks, and the side walls opposite to the two groups of limit blocks are each provided with a limit bolt, and the two groups of limit bolts are movably fitted with the two groups of limit grooves respectively.

[0019] Furthermore, the glue guiding mechanism includes a push plate, a side wall of the push plate is provided with a connecting shaft, the connecting shaft is rotatably connected to the second linkage rod, the other side of the push plate is fixedly connected to a piston rod, one end of the piston rod is provided with a piston, the piston is movably fitted with the inner wall of the piston cylinder, one end of the piston cylinder is provided with a sliding hole, the sliding hole is movably fitted with the piston rod, the other end of the piston cylinder is connected with a glue outlet pipe and a glue inlet pipe, both the glue outlet pipe and the glue inlet pipe are provided with a one-way valve, the glue outlet pipe and the glue outlet mechanism are connected to each other through a hose, and the glue inlet pipe and the glue extraction pipe are connected to each other through a hose.

[0020] The beneficial effects of the present invention are:

[0021] 1. Move the base to one side of the wind turbine blade mold so that the positioning wheel fits with the side wall of the wind turbine blade mold. Drive the base to move by the driving motor. Detect the pressure value change trend between the positioning wheel and the side wall of the wind turbine blade mold by the pressure sensor. Control the steering motor to drive the two sets of active bevel gears to rotate, so that the two sets of driven bevel gears drive the two sets of steering wheels to rotate synchronously, realize the steering of the base, and keep the distance between the injection component and the side wall of the wind turbine blade mold unchanged during the injection process. Self-positioning operation of the injection component can be achieved without laying guide rails in advance. The operation is flexible and the workload of workers is reduced, thereby improving the efficiency of auxiliary injection.

[0022] 2. By making the positioning wheel fit against the side wall of the wind turbine blade mold, the positioning wheel rotates due to the friction force during the movement of the base, so that the rotating shaft drives the active pulley and the driven pulley to rotate synchronously, so that the rotating joint drives the rotating tube to rotate, and the stirring rod stirs the liquid glue to effectively avoid the solidification of the liquid glue. Through several groups of glue guide holes, liquid glue of different depths enters the rotating tube, making the extracted liquid glue more uniform, avoiding the stratification of liquid glue affecting its adhesion, and finally extracting the liquid glue through the glue extraction tube for glue injection operation, effectively improving the glue injection quality.

[0023] 3. The electric turntable rotates to drive the glue injection tube and the push plate to perform reciprocating translational motion respectively. The reciprocating translational motion of the push plate drives the piston to perform reciprocating motion on the inner wall of the piston cylinder to realize the suction and liquid discharge operation of the piston cylinder. When the piston cylinder performs the suction operation, the liquid glue enters the piston cylinder through the glue extraction tube and the glue inlet tube. When the piston cylinder performs the liquid discharge operation, the liquid glue in the piston cylinder flows out through the glue outlet tube and then flows out through the glue injection tube for glue injection operation. At the same time, the glue injection tube performs external reciprocating translational quantitative glue discharge while the base moves, so that the liquid glue is evenly distributed on the connecting end face of the lower mold, effectively improving the bonding effect.

[0024] 4. After completing a set of end face glue injection operations on the lower mold, it is necessary to move the device to the other side of the mold to inject glue on the other side of the lower mold. At this time, the recovery funnel is driven by the electric push rod to move to the bottom of the first slide slot, so that the liquid glue derived from the injection tube flows into the recovery funnel, and then the recovery pump is used to make the liquid glue in the recovery funnel enter the glue storage tank through the recovery tube for recycling. This operation allows the device to perform a cyclic glue injection operation during the transfer process when switching the lower mold end face glue injection operation, effectively avoiding the liquid glue solidification caused by suspending the glue injection, and the outflowing liquid glue is recovered by the recovery pump, effectively saving energy and avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the main structure of an embodiment of the present invention is shown;

[0027] Figure 2 A perspective view of the internal structure of a glue storage tank according to an embodiment of the present invention is shown;

[0028] Figure 3 An exploded schematic diagram of the positioning wheel and the extrusion mechanism structure according to an embodiment of the present invention is shown;

[0029] Figure 4 A schematic diagram of the upper structure of a base according to an embodiment of the present invention is shown;

[0030] Figure 5 A perspective view of the internal structure of a base according to an embodiment of the present invention is shown;

[0031] Figure 6 An exploded schematic diagram of a vertical plate and a glue injection assembly structure according to an embodiment of the present invention is shown;

[0032] Figure 7 It shows a schematic structural diagram of a glue discharging mechanism according to an embodiment of the present invention;

[0033] Figure 8 A schematic structural diagram of a glue guiding mechanism according to an embodiment of the present invention is shown.

[0034] In the figure: 1. base; 2. driving wheel; 3. linkage shaft; 4. driving motor; 5. glue storage tank; 501. rotating tube; 502. stirring rod; 503. glue guide hole; 504. rotating joint; 505. glue extraction hose; 6. driven pulley; 7. positioning wheel; 701. slideway; 8. rotating shaft; 9. driving pulley; 10. belt; 11. extrusion mechanism; 1101. extrusion plate; 1102. rubber pad; 1103. linkage block; 1104. first slide shaft; 1105. first spring; 1106. second slide shaft; 1107. force block; 1108. pressure sensor; 1109. second spring; 12. steering wheel; 13. recovery pump; 14. recovery tube; 15. vertical plate; 1501. storage slot; 16. glue injection assembly; 1601. crossbeam; 16011. first slideway ; 16012, limit groove; 16013, second slide groove; 1602, glue discharging mechanism; 16021, glue injection tube; 16022, limit block; 16023, limit bolt; 1603, glue guiding mechanism; 16031, push plate; 16032, connecting shaft; 16033, slider; 16034, piston rod; 16035, piston; 16036, piston cylinder; 16037 , sliding hole; 16038, rubber outlet pipe; 16039, rubber inlet pipe; 1604, electric turntable; 1605, clamping block; 1606, first linkage rod; 1607, second linkage rod; 17, steering bracket; 18, mounting plate; 19, steering motor; 20, transmission shaft; 21, driving bevel gear; 22, driven bevel gear; 23, electric push rod; 24, recovery funnel; 25, guide pipe. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The embodiment of the present invention provides a self-positioning auxiliary glue injection device for wind turbine blade production, including a base 1; exemplarily, as Figure 1 shown.

[0037] Two groups of driving wheels 2 are arranged at the bottom end of the base 1, and a linkage shaft 3 is arranged between the centers of the two groups of driving wheels 2. A driving motor 4 is installed at the bottom end of the base 1, and the output end of the driving motor 4 is drivingly connected to the center of one group of driving wheels 2. A glue storage tank 5 is arranged on the base 1, and a driven pulley 6 is rotatably connected to the top of the glue storage tank 5. A positioning wheel 7 is rotatably connected to the base 1, and the positioning wheel 7 is movably fitted with the side wall of the wind turbine blade mold. A rotating shaft 8 is fixedly connected to the center of the positioning wheel 7, and a driving pulley 9 is arranged on the top of the rotating shaft 8. A belt 10 is sleeved between the driving pulley 9 and the driven pulley 6;

[0038] Specifically, the base 1 is moved to one side of the wind turbine blade mold so that the positioning wheel 7 fits against the side wall of the wind turbine blade mold for positioning. The base 1 is driven to move by the driving motor 4 so that the liquid glue in the glue storage tank 5 is injected onto the half-mold connecting end surface in the wind turbine blade mold to complete the auxiliary glue injection operation.

[0039] For example, Figure 2 shown.

[0040] The glue storage tank 5 is provided with a rotating tube 501, on which a plurality of groups of stirring rods 502 are staggered, and the rotating tube 501 is provided with a plurality of groups of glue guide holes 503, which are all connected with the inside of the rotating tube 501, and the top of the rotating tube 501 is connected with a rotating joint 504, which passes through the center of the driven pulley 6 and is fixedly connected with the center of the driven pulley 6, and the top of the rotating joint 504 is connected with a glue extraction tube 505;

[0041] Specifically, by making the positioning wheel 7 fit against the side wall of the wind turbine blade mold, the positioning wheel 7 rotates due to the friction force during the movement of the base 1, so that the rotating shaft 8 drives the active pulley 9 and the driven pulley 6 to rotate synchronously, so that the rotating joint 504 drives the rotating tube 501 to rotate, and the stirring rod 502 stirs the liquid glue to effectively avoid the solidification of the liquid glue. Through a plurality of groups of glue guide holes 503, liquid glue of different depths enters the rotating tube 501, so that the extracted liquid glue is more uniform, and the stratification of the liquid glue is avoided to affect its adhesion. Finally, the liquid glue is extracted through the glue extraction tube 505 for glue injection operation.

[0042] For example, Figure 3 shown.

[0043] The side wall of the positioning wheel 7 is provided with a plurality of groups of slide grooves 701, and the side wall of the positioning wheel 7 is provided with a plurality of groups of extrusion mechanisms 11, and the plurality of groups of the extrusion mechanisms 11 correspond to the plurality of groups of slide grooves 701 one by one, respectively. The extrusion mechanisms 11 include an extrusion plate 1101, and a rubber pad 1102 is laid on the extrusion plate 1101. The other side wall of the extrusion plate 1101 is provided with two groups of linkage blocks 1103, and the two groups of linkage blocks 1103 are respectively movably fitted with the two groups of slide grooves 701, and the two groups of linkage blocks 1103 are both provided with a first sliding shaft 1104. A first spring 1105 is provided between the block 1103 and the corresponding group of slide grooves 701, and the first springs 1105 are respectively sleeved on the corresponding group of first slide shafts 1104. A force block 1107 is also provided on the side wall of the positioning wheel 7, and a pressure sensor 1108 is provided on the force block 1107. A second slide shaft 1106 is provided on the other side wall of the force block 1107. A second spring 1109 is provided between the force block 1107 and the corresponding group of slide grooves 701, and the second springs 1109 are respectively sleeved on the corresponding group of second slide shafts 1106;

[0044] Specifically, by making the positioning wheel 7 fit against the side wall of the wind turbine blade mold, due to the tension of the first spring 1105 and the second spring 1109, the extrusion plate 1101 drives the rubber pad 1102 to contact the side wall of the wind turbine blade mold, and the friction force is increased by the rubber pad 1102. When the base 1 drives the positioning wheel 7 to move, the positioning wheel 7 rotates due to the friction force. The closer the positioning wheel 7 is to the side wall of the wind turbine blade mold, the greater the pressure value detected by the pressure sensor 1108. The change trend of the pressure value detected by several groups of pressure sensors 1108 can be used to monitor the change in the distance between the positioning wheel 7 and the side wall of the wind turbine blade mold.

[0045] For example, Figure 4 shown.

[0046] The glue storage tank 5 is provided with a recovery pump 13, the output end of the recovery pump 13 is interconnected with the interior of the glue storage tank 5, the input end of the recovery pump 13 is connected with a recovery pipe 14, a vertical plate 15 is fixedly connected to the base 1, a glue injection assembly 16 is provided on the vertical plate 15, the glue injection assembly 16 is interconnected with the glue extraction pipe 505 through a hose, and two sets of steering wheels 12 are provided at the bottom end of the base 1.

[0047] For example, Figure 5 shown.

[0048] The bottom end of the base 1 is rotatably connected with two groups of steering brackets 17, and the two groups of steering wheels 12 are respectively installed on the two groups of steering brackets 17. The base 1 is a hollow structure, and a mounting plate 18 is provided inside the base 1. A steering motor 19 is installed on one side wall of the mounting plate 18. The output end of the steering motor 19 is transmission-connected with a transmission shaft 20, and two groups of active bevel gears 21 are provided on the transmission shaft 20. Both groups of active bevel gears 21 are meshed and connected with driven bevel gears 22. Both groups of driven bevel gears 22 are rotatably connected to the bottom end of the inner wall of the base 1, and the centers of the two groups of driven bevel gears 22 are respectively fixedly connected to the two groups of steering brackets 17;

[0049] Specifically, the two sets of active bevel gears 21 are driven to rotate by the steering motor 19, so that the two sets of driven bevel gears 22 drive the two sets of steering wheels 12 to rotate synchronously, thereby realizing the steering of the base 1. The pressure value change trend detected by the pressure sensor 1108 is used to control the steering motor 19 to rotate in different directions, so that the base 1 maintains a constant distance from the side wall of the wind turbine blade mold during the movement, thereby realizing the positioning of the injection assembly 16.

[0050] For example, Figure 6-8 shown.

[0051] The vertical plate 15 is provided with a storage groove 1501, and an electric push rod 23 is installed on the inner wall of the storage groove 1501. The output end of the electric push rod 23 is transmission-connected to a recovery funnel 24. The bottom end of the recovery funnel 24 is connected to a guide pipe 25, and the guide pipe 25 is connected to the recovery pipe 14.

[0052] The glue injection assembly 16 includes a crossbeam 1601, which is fixedly connected to the vertical plate 15. The crossbeam 1601 is provided with a first slide groove 16011 and a second slide groove 16013. Both side walls of the crossbeam 1601 are provided with a limiting groove 16012. The crossbeam 1601 is provided with a glue discharging mechanism 1602, which is movably fitted with the first slide groove 16011. The crossbeam 1601 is provided with a glue guiding mechanism 1603. 603 is movably fitted with the second slide groove 16013, an electric turntable 1604 is arranged at the top center of the crossbeam 1601, a clamping block 1605 is arranged on the electric turntable 1604, a first linkage rod 1606 is rotatably connected to the clamping block 1605, the other end of the first linkage rod 1606 is rotatably connected to the glue discharging mechanism 1602, a second linkage rod 1607 is rotatably connected to the clamping block 1605, and the second linkage rod 1607 is rotatably connected to the glue guiding mechanism 1603;

[0053] The glue discharging mechanism 1602 comprises a glue injection tube 16021, and two groups of limit blocks 16022 are symmetrically arranged on the side wall of the glue injection tube 16021. The two groups of limit blocks 16022 are arranged on opposite side walls. The two groups of limit bolts 16023 are movably fitted with the two groups of limit grooves 16012 respectively.

[0054] The rubber guiding mechanism 1603 includes a push plate 16031, a side wall of the push plate 16031 is provided with a connecting shaft 16032, the connecting shaft 16032 is rotatably connected to the second linkage rod 1607, the other side of the push plate 16031 is fixedly connected to a piston rod 16034, one end of the piston rod 16034 is provided with a piston 16035, the piston 16035 is movably fitted with the inner wall of the piston cylinder 16036, the piston cylinder 1603 A sliding hole 16037 is provided at one end of the piston rod 16034, and the sliding hole 16037 is movably fitted with the piston rod 16034. The other end of the piston cylinder 16036 is connected with a rubber outlet pipe 16038 and a rubber inlet pipe 16039. Both the rubber outlet pipe 16038 and the rubber inlet pipe 16039 are provided with a one-way valve. The rubber outlet pipe 16038 is connected to the rubber injection pipe 16021 through a hose, and the rubber inlet pipe 16039 is connected to the rubber extraction pipe 505 through a hose.

[0055] Specifically, the electric turntable 1604 rotates to drive the glue injection tube 16021 and the push plate 16031 to perform reciprocating translational motion respectively. The push plate 16031 performs reciprocating translational motion and drives the piston 16035 to perform reciprocating motion on the inner wall of the piston cylinder 16036, so as to realize the suction and liquid discharge operation of the piston cylinder 16036. When the piston cylinder 16036 performs the suction operation, the liquid glue enters the piston cylinder 16036 through the glue extraction tube 505 and the glue inlet tube 16039. When the piston cylinder 16036 performs the liquid discharge operation, the liquid glue in the piston cylinder 16036 flows out through the glue outlet tube 16038 and then flows out through the glue injection tube 16021 to perform the glue injection operation. At the same time, the glue injection tube 16021 performs the reciprocating translational motion to discharge the glue while the base 1 moves, so that the liquid glue is evenly distributed on the connecting end surface of the lower mold.

[0056] Furthermore, after completing a set of end face glue injection operations on the lower mold, it is necessary to move the device to the other side of the mold to inject glue on the other end face of the lower mold. At this time, the recovery funnel 24 is driven by the electric push rod 23 to move to the bottom of the first slide groove 16011, so that the liquid glue exported from the glue injection tube 16021 flows into the recovery funnel 24, and then the recovery pump 13 is used to make the liquid glue in the recovery funnel 24 enter the glue storage tank 5 through the recovery tube 14 for recycling. This operation allows the device to perform a cyclic glue injection operation during the transfer process when switching the lower mold end face glue injection operation, effectively avoiding the liquid glue solidification caused by suspending the glue injection, and the outflowing liquid glue is recovered by the recovery pump 13, effectively saving energy and avoiding waste.

[0057] The self-positioning auxiliary glue injection device for wind turbine blade production proposed by the present invention has the following working principle:

[0058] By moving the base 1 to one side of the wind turbine blade mold, the positioning wheel 7 is fitted with the side wall of the wind turbine blade mold. Due to the tension of the first spring 1105 and the second spring 1109, the extrusion plate 1101 drives the rubber pad 1102 to contact the side wall of the wind turbine blade mold. The friction force is increased by the rubber pad 1102. When the base 1 drives the positioning wheel 7 to move, the positioning wheel 7 rotates due to the friction force. The closer the positioning wheel 7 is to the side wall of the wind turbine blade mold, the greater the pressure value detected by the pressure sensor 1108. According to the pressure value change trend detected by the pressure sensor 1108, the steering motor 19 is controlled to rotate in different directions. The steering motor 19 drives the two sets of active bevel gears 21 to rotate, so that the two sets of driven bevel gears 22 drive the two sets of steering wheels 12 to rotate synchronously, so as to realize the steering of the base 1, so that the base 1 keeps the distance with the side wall of the wind turbine blade mold unchanged during the movement, and realizes the positioning of the injection assembly 16.

[0059] By making the positioning wheel 7 fit against the side wall of the wind turbine blade mold, the positioning wheel 7 rotates due to the friction force during the movement of the base 1, so that the rotating shaft 8 drives the active pulley 9 and the driven pulley 6 to rotate synchronously, so that the rotating joint 504 drives the rotating tube 501 to rotate, and the stirring rod 502 stirs the liquid glue to effectively avoid the solidification of the liquid glue. Through a plurality of groups of glue guide holes 503, liquid glue of different depths enters the rotating tube 501, so that the extracted liquid glue is more uniform, and the stratification of the liquid glue is avoided to affect its adhesion. Finally, the liquid glue is extracted through the glue extraction tube 505 for glue injection operation.

[0060] The electric turntable 1604 rotates to drive the glue injection tube 16021 and the push plate 16031 to perform reciprocating translational motion respectively. The reciprocating translational motion of the push plate 16031 drives the piston 16035 to perform reciprocating motion on the inner wall of the piston cylinder 16036, thereby realizing the suction and liquid discharge operation of the piston cylinder 16036. When the piston cylinder 16036 performs the suction operation, the liquid glue enters the piston cylinder 16036 through the glue extraction tube 505 and the glue inlet tube 16039. When the piston cylinder 16036 performs the liquid discharge operation, the liquid glue in the piston cylinder 16036 flows out through the glue outlet tube 16038, and then flows out through the glue injection tube 16021 for the glue injection operation. At the same time, the glue injection tube 16021 performs external reciprocating translational quantitative glue discharge while the base 1 moves, so that the liquid glue is evenly distributed on the connecting end face of the lower mold.

[0061] After completing a set of end face glue injection operations on the lower mold, it is necessary to move the device to the other side of the mold to inject glue on the other end face of the lower mold. At this time, the recovery funnel 24 is driven by the electric push rod 23 to move to the bottom of the first slide groove 16011, so that the liquid glue exported from the glue injection tube 16021 flows into the recovery funnel 24, and then the recovery pump 13 is used to make the liquid glue in the recovery funnel 24 enter the glue storage tank 5 through the recovery tube 14 for recycling. This operation allows the device to perform a cyclic glue injection operation during the transfer process when switching the lower mold end face glue injection operation, effectively avoiding the liquid glue solidification caused by suspending the glue injection, and the outflowing liquid glue is recovered by the recovery pump 13, effectively saving energy and avoiding waste.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-positioning auxiliary glue injection device for wind turbine blade production, comprising a base (1), characterized in that: The base (1) is provided with a glue storage tank (5), and the base (1) is rotatably connected with a positioning wheel (7); The side wall of the positioning wheel (7) is provided with a plurality of groups of squeezing mechanisms (11), and the side wall of the positioning wheel (7) is also provided with a force block (1107), and a pressure sensor (1108) is provided on the force block (1107); Two sets of steering wheels (12) are arranged at the bottom end of the base (1), a mounting plate (18) is arranged inside the base (1), and a steering motor (19) is mounted on one side wall of the mounting plate (18); A vertical plate (15) is fixedly connected to the base (1), and a glue injection assembly (16) is provided on the vertical plate (15); The base (1) is moved to one side of the wind turbine blade mold so that the positioning wheel (7) fits against the side wall of the wind turbine blade mold, and the pressure sensor (1108) detects the pressure value change trend between the positioning wheel (7) and the side wall of the wind turbine blade mold, thereby controlling the steering motor (19) to drive the base (1) to turn, thereby achieving a self-positioning operation of the glue injection component (16); The glue storage tank (5) is provided with a recovery pump (13), the output end of the recovery pump (13) is in communication with the interior of the glue storage tank (5), the input end of the recovery pump (13) is in communication with a recovery pipe (14), and the glue injection assembly (16) and the glue extraction pipe (505) are in communication with each other via a hose; The vertical plate (15) is provided with a storage groove (1501), an electric push rod (23) is installed on the inner wall of the storage groove (1501), the output end of the electric push rod (23) is transmission-connected to a recovery funnel (24), and the bottom end of the recovery funnel (24) is connected to a guide pipe (25); The glue injection assembly (16) comprises a crossbeam (1601), the crossbeam (1601) is provided with a first slide groove (16011) and a second slide groove (16013), both side walls of the crossbeam (1601) are provided with a limit groove (16012), a glue discharge mechanism (1602) is provided on the crossbeam (1601), the glue discharge mechanism (1602) is movably fitted with the first slide groove (16011), and a glue guide mechanism (1603) is provided on the crossbeam (1601), the glue guide mechanism (1603) is movably fitted with the second slide groove (16013) is movably fitted, an electric turntable (1604) is arranged at the top center of the crossbeam (1601), a clamping block (1605) is arranged on the electric turntable (1604), a first linkage rod (1606) is rotatably connected to the clamping block (1605), the other end of the first linkage rod (1606) is rotatably connected to the glue discharging mechanism (1602), a second linkage rod (1607) is rotatably connected to the clamping block (1605), and the second linkage rod (1607) is rotatably connected to the glue guiding mechanism (1603).

2. The self-positioning auxiliary glue injection device for wind turbine blade production according to claim 1 is characterized in that: Two groups of driving wheels (2) are arranged at the bottom end of the base (1), a linkage shaft (3) is arranged between the centers of the two groups of driving wheels (2), a driving motor (4) is installed at the bottom end of the base (1), and an output end of the driving motor (4) is drivingly connected to the center of one group of driving wheels (2).

3. The self-positioning auxiliary glue injection device for wind turbine blade production according to claim 1 is characterized in that: The top of the glue storage tank (5) is rotatably connected to a driven pulley (6), the center of the positioning wheel (7) is fixedly connected to a rotating shaft (8), the top of the rotating shaft (8) is provided with a driving pulley (9), a belt (10) is sleeved between the driving pulley (9) and the driven pulley (6), a rotating tube (501) is provided in the glue storage tank (5), a plurality of groups of stirring rods (502) are staggeredly arranged on the rotating tube (501), a plurality of groups of glue guide holes (503) are opened on the rotating tube (501), the top of the rotating tube (501) is connected to a rotating joint (504), and the rotating joint (504) passes through the center of the driven pulley (6) and is connected to a glue extraction tube (505).

4. The self-positioning auxiliary glue injection device for wind turbine blade production according to claim 1 is characterized in that: The side wall of the positioning wheel (7) is provided with a plurality of groups of slide grooves (701), the extrusion mechanism (11) comprises an extrusion plate (1101), one side wall of the extrusion plate (1101) is provided with two groups of linkage blocks (1103), both groups of linkage blocks (1103) are provided with a first sliding shaft (1104), a first spring (1105) is provided between the linkage blocks (1103) and the corresponding group of slide grooves (701), the other side wall of the force-bearing block (1107) is provided with a second sliding shaft (1106), and a second spring (1109) is provided between the force-bearing block (1107) and the corresponding group of slide grooves (701).

5. The self-positioning auxiliary glue injection device for wind turbine blade production according to claim 1 is characterized in that: The bottom end of the base (1) is rotatably connected to two groups of steering brackets (17), and the two groups of steering wheels (12) are respectively mounted on the two groups of steering brackets (17). The base (1) is a hollow structure. The output end of the steering motor (19) is drivingly connected to a transmission shaft (20), and the transmission shaft (20) is provided with two groups of active bevel gears (21). The two groups of active bevel gears (21) are meshingly connected to driven bevel gears (22), and the centers of the two groups of driven bevel gears (22) are respectively fixedly connected to the two groups of steering brackets (17).

6. The self-positioning auxiliary glue injection device for wind turbine blade production according to claim 1 is characterized in that: The glue discharging mechanism (1602) comprises a glue injection tube (16021), and the side wall of the glue injection tube (16021) is symmetrically provided with two groups of limit blocks (16022), and the side walls opposite to each other of the two groups of limit blocks (16022) are both provided with limit bolts (16023), and the two groups of limit bolts (16023) are movably fitted with the two groups of limit grooves (16012) respectively.

7. The self-positioning auxiliary glue injection device for wind turbine blade production according to claim 1 is characterized in that: The rubber guiding mechanism (1603) comprises a push plate (16031), a side wall of the push plate (16031) is provided with a connecting shaft (16032), the connecting shaft (16032) is rotatably connected to the second linkage rod (1607), the other side of the push plate (16031) is fixedly connected to a piston rod (16034), one end of the piston rod (16034) is provided with a piston (16035), the piston (16035) is movably fitted with the inner wall of the piston cylinder (16036), and the piston cylinder (1603 6) is provided with a sliding hole (16037), the sliding hole (16037) is movably fitted with the piston rod (16034), the other end of the piston cylinder (16036) is connected with a rubber outlet pipe (16038) and a rubber inlet pipe (16039), both the rubber outlet pipe (16038) and the rubber inlet pipe (16039) are provided with a one-way valve, the rubber outlet pipe (16038) and the rubber outlet mechanism (1602) are mutually connected through a hose, and the rubber inlet pipe (16039) and the rubber extraction pipe (505) are mutually connected through a hose.

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