Water-based gum inkjet device with uniformly distributed nozzles

Abstract

The invention relates to the technical field of water-based back adhesive painting, and discloses a water-based back adhesive painting device with uniformly distributed sprayers, which comprises a fixed bottom plate, supporting legs, an upper supporting plate and a storage box, a pump body is fixedly mounted at the top of the upper supporting plate and located at the side edge of the storage box, and vertical grooves are uniformly formed in uniformly distributed conical blocks; the vertical positions of the multiple vertical grooves correspond to the vertical positions of the multiple flow distribution holes in a one-to-one mode, the cross section of the evenly-distributed conical block is designed to be in a conical shape, and the taper angle of the evenly-distributed conical block ranges from 2 degrees to 6 degrees. The supporting arc frame is used for supporting the first drainage pipe, the evenly-distributed conical blocks are fixed in the temporary storage area in the material storage pipe, materials are gradually scattered from the middle to the two sides, and the height of the vertical groove in the middle is larger than that of the vertical grooves in the two sides; by means of the design, the discharging time of the tail ends of the vertical grooves is almost the same, so that a plurality of painting nozzles can discharge synchronously, and the uniform distribution effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water-based back glue spraying, and specifically relates to a water-based back glue spraying device with evenly distributed nozzles. Background Technique

[0002] Water-based back glue is a kind of spraying back glue with water as the basic solvent. After being atomized by a spraying machine, it is sprayed onto materials such as paper and film. Water-based back glue does not produce harmful gases during spraying, so water-based back glue has good environmental protection. And water-based back glue spraying is a spraying technology using water-based ink. Due to its good environmental protection effect, it will be widely used by people;

[0003] In the process of combining water-based back glue spraying, a corresponding water-based back glue spraying device is needed. When used in reality, during spraying, it is often necessary to combine with the size of the actual material. At this time, if a single nozzle is used, it is not easy to spray fully. Therefore, multiple nozzles are often used for spraying. However, multiple nozzles are prone to form a flow difference in the discharged material. If the method of connecting multiple nozzles separately is used, not only is it easy to cause cost waste, but it is also not easy to control the synchronous discharging of multiple nozzles, affecting the uniform spraying effect during actual use. Summary of the Invention

[0004] The purpose of the present invention is to provide a water-based back glue spraying device with evenly distributed nozzles to solve the problem that multiple nozzles are prone to form a flow difference in the discharged material in the above-mentioned background technique. If the method of connecting multiple nozzles separately is used, not only is it easy to cause cost waste, but it is also not easy to control the synchronous discharging of multiple nozzles, affecting the uniform spraying effect during actual use.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A water-based back glue spraying device with evenly distributed nozzles, including a fixed bottom plate, support legs, an upper support plate, and a storage box. A pump body is fixedly installed on the top of the upper support plate on the side of the storage box. One end of the pump body extends to the position of the storage box through a pipeline and is connected. The other end of the pump body is connected to a first drainage pipe. The bottom of the first drainage pipe is connected to a second drainage pipe. A section of telescopic corrugated telescopic end is assembled on the second drainage pipe. A storage pipe is arranged below the second drainage pipe. The top of the storage pipe is connected with a connecting pipe. The tail end of the second drainage pipe is communicated with the connecting pipe. A temporary storage area for storing materials is formed in the storage pipe. A uniformly distributed conical block is fixed at the bottom of the temporary storage area. Vertical grooves are evenly opened in the uniformly distributed conical block. Distribution holes are opened at the bottom inside the storage pipe. A spraying nozzle for spraying is assembled at the position corresponding to the distribution holes at the bottom of the storage pipe. The vertical positions of the multiple vertical grooves correspond to the vertical positions of the multiple distribution holes one by one. The cross-section of the uniformly distributed conical block is designed in a conical shape, and the cone angle at the uniformly distributed conical block is 2 degrees - 6 degrees.

[0006] As a further technical solution of the present invention, the inkjet printing nozzles are evenly distributed in five groups at the bottom of the flow distribution holes, and the vertical grooves and the flow distribution holes are designed in five groups.

[0007] As a further technical solution of the present invention, the height of the vertical groove in the middle is greater than the height of the vertical grooves on both sides, and the heights of the two vertical grooves on both sides gradually decrease towards the sides.

[0008] As a further technical solution of the present invention, the front end surface of the storage box is marked with metering marking lines for metering, and the side position of the top of the storage box is connected to and equipped with a feeding port for adding material, and the feeding port is equipped with a valve for controlling the flow rate.

[0009] As a further technical solution of the present invention, a drive motor is installed on the side of the storage box, and the drive motor is fixed to the side of the storage box by a support plate. A storage cavity for storing materials is formed in the storage box, and a stirring shaft is installed on the side of the storage cavity.

[0010] As a further technical solution of the present invention, the driving motor is connected to a coupling, the coupling is connected to a transmission shaft, a stirring shaft is assembled on a side of the transmission shaft, and stirring blades are evenly distributed on the outside of the stirring shaft.

[0011] As a further technical solution of the present invention, two left and right adjustment boxes are fixed on the top of the fixed base plate, a servo motor is installed on the top of the right adjustment box, the output end of the servo motor is transmission-connected with a threaded rod, the threaded rod is transferred to the inside of the right adjustment box, the external thread of the threaded rod is connected with a threaded block, the inside of the left adjustment box is fixed with a guide rod, the external sliding connection of the guide rod is connected with a slider, the sides of the threaded block and the slider are fixed with guide shafts, and the sides of the two adjustment boxes are provided with limited guide grooves.

[0012] As a further technical solution of the present invention, side connecting shafts are fixed on both sides of the material storage tube, the guide shaft rod passes through the inside of the guide groove and is connected and fixed with the side connecting shafts, and the two side connecting shafts are respectively connected and fixed with the two guide shaft rods.

[0013] As a further technical solution of the present invention, a first assembly arc plate is fixed at the upper and lower parts of the guide groove, a movable second assembly arc plate is sleeved and inserted in the first assembly arc plate, a movable third assembly arc plate is sleeved and inserted in the second assembly arc plate, the bottom end of the upper third assembly arc plate and the top end of the lower third assembly arc plate are fixed to the upper and lower positions of the guide shaft, and the spacing of the left and right adjustable vertical boxes is greater than the horizontal length of the storage tube.

[0014] As a further technical solution of the present invention, a welding head is fixedly welded to the side of the upper support plate. A first connecting rod is fixedly welded to the side of the welding head. The top of the first connecting rod is fixedly welded to a second connecting rod. The top of the second connecting rod is fixedly welded to a support arc frame for supporting the first drainage pipe. A protective pad is adhesively fixed to the top arc surface of the support arc frame. A telescopic kit is fixed below the first drainage pipe. The telescopic kit is formed by telescopic sleeving of two sleeve rods. The bottom sleeve rod is connected to the top end of the storage pipe, and the top sleeve rod is fixed to the bottom of the first drainage pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This water-based back glue spraying device with evenly distributed nozzles improves the even distribution ability, and also improves the protection effect and material leveling effect of spraying.

[0016] (1) By using the support arc frame to support the first drainage pipe, the contact surface is protected by the contact of the protective pad. After the pump body works, the raw materials in the storage tank are extracted by the pipeline and drained through the first drainage pipe. The second drainage pipe is communicated with the first drainage pipe. Therefore, the materials can reach the position of the storage pipe after being output through the second drainage pipe. The arrangement of the corrugated telescopic end is used for the telescopic work when the height of the storage pipe is adjusted. Similarly, the telescopic kit is used for position connection and does not affect the height adjustment. The uniform distribution cone block is fixed in the temporary storage area in the storage pipe. Considering that vertical grooves are opened in the uniform distribution cone block and flow distribution holes are opened at the bottom of the storage pipe, one flow distribution hole corresponds to the assembly position of one spraying nozzle, and one vertical groove is exactly arranged directly above one flow distribution hole. When the materials reach the inside of the temporary storage area and contact the upper surface of the uniform distribution cone block, under the oblique distribution of the two side surfaces of the uniform distribution cone block, the materials gradually spread from the middle to both sides. The height of the vertical groove in the middle is greater than the height of the vertical grooves on both sides, and the height of the side vertical grooves gradually decreases towards both sides. With this design, the discharging ends of each vertical groove can be at almost the same time, so that multiple spraying nozzles can discharge materials synchronously, thereby improving the uniform distribution effect.

[0017] (2) By fixing two adjusting vertical boxes at the top position of the fixed base plate, the guiding shaft rod passes through the inside of the guiding groove and is fixedly connected to the side connecting shaft. The two side connecting shafts are respectively fixedly connected to the two guiding shaft rods, and the external thread of the threaded rod is connected to the threaded block. Therefore, after the guiding shaft rod and the side connecting shaft are connected, the storage pipe, the slider, and the threaded block can form a unified movement route. After starting the servo motor, it can drive the threaded rod to rotate. At this time, the threaded rod cooperates with the threaded block for vertical adjustment and can drive the height position of the storage pipe to be adjusted, facilitating the spray painting nozzle to be at a height position more convenient for discharging materials. At the same time, movable second assembly arc plates are sleeved and inserted in the first assembly arc plates, and movable third assembly arc plates are sleeved and inserted in the second assembly arc plates. The bottom end of the upper third assembly arc plate and the top end of the lower third assembly arc plate are fixed to the upper and lower positions of the guiding shaft rod. Therefore, when the guiding shaft rod moves up and down along the guiding groove, according to the position of the guiding shaft rod, the second assembly arc plate and the third assembly arc plate are correspondingly contracted or expanded, reducing the leakage area of the guiding groove to a certain extent and reducing problems such as materials splashing during spray painting and reaching the inside of the adjusting vertical box, improving a certain protective effect.

[0018] (3) By assembling and fixing the storage box at the top position of the upper support plate and assembling the feeding port at the top position of the storage box, the raw materials for water-based back glue spray painting can be fed from the feeding port and stored in the storage box. And a filter screen can be equipped at the feeding port for pretreatment and filtering work. When using the storage box to store raw materials, after starting the driving motor, it can drive the stirring shaft to rotate to improve the fluidity of the medium and improve the material mixing effect. And a metering scale line is fixed on the front end face of the storage box, facilitating the observation of the remaining material quantity and facilitating the staff to add and supplement raw materials into the storage box in time. Brief Description of the Drawings

[0019] Figure 1 is the front view structural schematic diagram of the present invention;

[0020] Figure 2 is the cross-sectional view structural schematic diagram of the storage pipe of the present invention;

[0021] Figure 3 is the three-dimensional structural schematic diagram of the support arc frame of the present invention;

[0022] Figure 4 is the partial three-dimensional structural schematic diagram of the adjusting vertical box of the present invention;

[0023] Figure 5 is the front view sectional structural schematic diagram of one of the adjusting vertical boxes of the present invention;

[0024] Figure 6 is the three-dimensional structural schematic diagram of the first assembly arc plate of the present invention;

[0025] Figure 7Schematic diagram of the three-dimensional structure of the partial cross-section of the storage box of the present invention;

[0026] In the figure: 1, fixed bottom plate; 2, support leg; 3, upper support plate; 4, storage box; 5, drive motor; 6, feeding port; 7, metering scale line; 8, pump body; 9, first connecting rod; 10, first drainage pipe; 11, second drainage pipe; 12, corrugated telescopic end; 13, servo motor; 14, storage pipe; 15, side connecting shaft; 16, inkjet nozzle; 17, adjusting vertical box; 18, connecting pipe; 19, telescopic kit; 20, temporary storage area; 21, evenly distributed conical block; 22, flow distribution hole; 23, vertical groove; 24, welding head; 25, second connecting rod; 26, supporting arc frame; 27, protective pad; 28, guide rod; 29, slider; 30, guide shaft rod; 31, threaded rod; 32, threaded block; 33, guide groove; 34, first assembly arc plate; 35, second assembly arc plate; 36, third assembly arc plate; 37, storage cavity; 38, stirring shaft. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-7 , an embodiment provided by the present invention: an aqueous back glue inkjet device with evenly distributed nozzles, including a fixed bottom plate 1, support legs 2, an upper support plate 3, and a storage box 4. A pump body 8 is fixedly installed on the top of the upper support plate 3 at the side of the storage box 4. One end of the pump body 8 extends to the position of the storage box 4 through a pipeline and is connected. The other end of the pump body 8 is connected with a first drainage pipe 10. The bottom of the first drainage pipe 10 is connected with a second drainage pipe 11. A section of corrugated telescopic end 12 for telescoping is assembled on the second drainage pipe 11. A storage pipe 14 is arranged below the second drainage pipe 11. The top of the storage pipe 14 is connected with a connecting pipe 18. The tail end of the second drainage pipe 11 is communicated with the connecting pipe 18. A temporary storage area 20 for storing materials is formed in the storage pipe 14. An evenly distributed conical block 21 is fixed at the bottom of the temporary storage area 20. Vertical grooves 23 are evenly opened in the evenly distributed conical block 21. Flow distribution holes 22 are opened in the bottom of the storage pipe 14. An inkjet nozzle 16 for spraying is assembled at the position of the bottom of the storage pipe 14 corresponding to the flow distribution holes 22. The vertical positions of the plurality of vertical grooves 23 correspond to the vertical positions of the plurality of flow distribution holes 22 one by one. The cross-section of the evenly distributed conical block 21 is designed as a cone, and the cone angle at the position of the evenly distributed conical block 21 is 2 degrees - 6 degrees.

[0029] The inkjet printing heads 16 are evenly distributed in five groups at the bottom of the flow distribution holes 22 , and the vertical grooves 23 and the flow distribution holes 22 are both designed in five groups.

[0030] The height of the vertical groove 23 in the middle is greater than the height of the vertical grooves 23 on both sides, and the heights of the two vertical grooves 23 on both sides gradually decrease toward the sides.

[0031] The front end surface of the storage box 4 is marked with metering marking lines 7 for metering, and the side position of the top of the storage box 4 is connected to and equipped with a feeding port 6 for adding material, and the feeding port 6 is equipped with a valve for controlling the flow rate.

[0032] A drive motor 5 is installed on the side of the storage box 4, and the drive motor 5 is fixed to the side of the storage box 4 by a support plate. A storage cavity 37 for storing materials is formed in the storage box 4, and a stirring shaft 38 is installed on the side of the storage cavity 37.

[0033] The driving motor 5 is connected to a coupling, and the coupling is connected to a transmission shaft. The stirring shaft 38 is assembled on the side of the transmission shaft, and stirring blades are evenly distributed on the outside of the stirring shaft 38 .

[0034] Two left and right adjustment boxes 17 are fixed on the top of the fixed base plate 1, a servo motor 13 is installed on the top of the right adjustment box 17, the output end of the servo motor 13 is transmission-connected with a threaded rod 31, the threaded rod 31 is transferred to the inside of the right adjustment box 17, the external thread of the threaded rod 31 is connected with a threaded block 32, the inside of the left adjustment box 17 is fixed with a guide rod 28, the outside of the guide rod 28 is slidably connected with a slider 29, the sides of the threaded block 32 and the slider 29 are fixed with guide shafts 30, and the sides of the two adjustment boxes 17 are provided with limited guide grooves 33.

[0035] Side connecting shafts 15 are fixed on both sides of the material storage tube 14 . The guide shafts 30 pass through the guide grooves 33 and are connected and fixed to the side connecting shafts 15 . The two side connecting shafts 15 are connected and fixed to the two guide shafts 30 respectively.

[0036] A first assembly arc plate 34 is fixed at the upper and lower parts of the guide groove 33, a movable second assembly arc plate 35 is sleeved and inserted in the first assembly arc plate 34, and a movable third assembly arc plate 36 is sleeved and inserted in the second assembly arc plate 35. The bottom end of the upper third assembly arc plate 36 and the top end of the lower third assembly arc plate 36 are fixed to the upper and lower positions of the guide shaft 30, and the spacing of the left and right adjustment vertical box 17 is greater than the horizontal length of the storage tube 14.

[0037] The side of the upper support plate 3 is fixedly welded with a welding head 24. The side of the welding head 24 is fixedly welded with a first connecting rod 9. The top of the first connecting rod 9 is fixedly welded with a second connecting rod 25. The top of the second connecting rod 25 is fixedly welded with a support arc frame 26 for supporting the first drainage pipe 10. The top arc surface of the support arc frame 26 is adhesively fixed with a protective pad 27. A telescopic kit 19 is fixed below the first drainage pipe 10. The telescopic kit 19 is formed by telescopic sleeves of two sleeve rods. The bottom sleeve rod is connected to the top end of the storage pipe 14, and the top sleeve rod is fixed to the bottom of the first drainage pipe 10;

[0038] Refer to Figure 1 and Figure 2 In an embodiment provided by the present invention: the vertical positions of the plurality of vertical grooves 23 correspond to the vertical positions of the plurality of flow distribution holes 22 one by one. The cross-section of the evenly distributed cone block 21 is designed as a cone shape. The cone angle at the evenly distributed cone block 21 is 2 degrees - 6 degrees, and a smaller cone angle is required for longer pipes to balance the cumulative friction loss;

[0039] The above calculation formula is tan(θ / 2)≈ΔD / 2L, where ΔD = Dend - Dstart. The cone angle is optimized by adjusting ΔD. After initially selecting the cone angle, it is recommended to measure the flow rate at each discharge point through CFD simulation or experiment, and finely adjust the cone angle to achieve uniform distribution;

[0040] Assume that the pipe length L = 1 m, the initial diameter D0 = 0.1 m, the target full cone angle θ = 4 degrees, the half angle θ / 2 = 2 degrees, and tan(2 degrees)≈0.0349; the end diameter D1 = D0 + 2Ltan(θ / 2)≈0.1698 m; through the above design, uniform outflow can be achieved at a lower Reynolds number, ensuring the consistency of the spraying quality. In actual applications, optimization needs to be carried out in combination with specific fluid parameters and process requirements;

[0041] The cone angle of the above low-viscosity fluid can be slightly larger, 4 degrees - 6 degrees, to reduce the dominant effect of friction. For high-viscosity fluids or high flow rates, a smaller cone angle of 2 degrees - 4 degrees is selected to avoid flow separation;

[0042] Refer to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 In an embodiment provided by the present invention: when the guide shaft rod 30 moves up and down along the guide groove 33, according to the position of the guide shaft rod 30, the second assembly arc plate 35 and the third assembly arc plate 36 are correspondingly contracted or expanded. At this time, when the guide shaft rod 30 is exactly located at the middle position of the guide groove 33, the combined lengths of the upper and lower first assembly arc plates 34, the second assembly arc plate 35, and the third assembly arc plate 36 are the same;

[0043] When the guiding shaft rod 30 moves to the uppermost position, it is limited by the upper first assembly arc plate 34. At this time, the upper second assembly arc plate 35 and the third assembly arc plate 36 are completely retracted and exactly the lower second assembly arc plate 35 and the third assembly arc plate 36 are completely extended;

[0044] And so on, when the guiding shaft rod 30 moves to the lowermost position, it is limited by the first assembly arc plate 34 at the lower position. At this time, the lower second assembly arc plate 35 and the third assembly arc plate 36 are completely retracted and exactly the upper second assembly arc plate 35 and the third assembly arc plate 36 are completely extended;

[0045] The above design means of the first assembly arc plate 34, the second assembly arc plate 35, and the third assembly arc plate 36 are to reduce the leakage area of the guiding groove 33, and to a certain extent, reduce the problem that the waste material reaches the inside of the adjusting vertical box 17 through the guiding groove 33;

[0046] Refer to Figure 1 、 Figure 7 For an embodiment provided by the present invention: The raw material of the water-based back glue spraying can be fed from the position of the feeding port 6 and stored in the storage box 4. And a filter screen can be equipped at the feeding port 6 for pre-treatment and filtering work. When using the storage box 4 to store the raw material, after starting the driving motor 5 to work, it can drive the stirring shaft 38 to rotate, which is used to improve the fluidity of the medium, improve the material leveling effect, and a metering scale line 7 is fixed on the front end face of the storage box 4, which is convenient for observing the remaining material amount and convenient for the staff to add and supplement the raw material into the storage box 4 in time; A discharge port can be equipped at the storage box 4 to facilitate the discharge of the remaining material; And in combination with the storage requirements, a corresponding temperature sensor and a necessary temperature control system can be equipped in the storage box 4 in combination with the existing technology to prevent the temperature from being too low;

[0047] Refer to Figures 1-7 For an embodiment provided by the present invention: During actual spraying, a required lead screw assembly can be assembled on the top of the fixed base plate 1. The lead screw assembly is a commonly used fitting in the prior art. A workbench is fixed on the nut, and the material to be sprayed is placed on the workbench. Its direction can be adjusted in the front-back direction, and the position can be just below the storage pipe 14. Here, the height position of the storage pipe 14 can be adjusted to reduce the splashing problem.

[0048] Working principle: First, in combination with the required spraying conditions, place the material to be sprayed on the workbench at the top of the nut of the lead screw assembly. This workbench is located below the storage pipe 14. Then, use a pipeline to extract the raw materials in the storage tank 4 and drain them through the first drainage pipe 10. The second drainage pipe 11 is connected to the first drainage pipe 10. Therefore, the material can reach the position of the storage pipe 14 after being output through the second drainage pipe 11. The uniform distribution cone block 21 is fixed in the area of the temporary storage area 20 inside the storage pipe 14. Considering that vertical grooves 23 are opened in the uniform distribution cone block 21 and flow distribution holes 22 are opened at the bottom of the storage pipe 14, one flow distribution hole 22 corresponds to the assembly position of one spraying nozzle 16, and one vertical groove 23 is exactly arranged directly above one flow distribution hole 22. When the material reaches the inside of the temporary storage area 20 and contacts the upper surface of the uniform distribution cone block 21, under the oblique distribution of the two side surfaces of the uniform distribution cone block 21, the material gradually spreads from the middle to both sides. The height of the vertical groove 23 in the exact middle is greater than the height of the vertical grooves 23 on both sides, and the height of the side vertical grooves 23 gradually decreases towards both sides, so that the discharging ends of each vertical groove 23 are at almost the same time. Thus, the spraying work can be carried out synchronously by multiple spraying nozzles 16.

[0049] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. An aqueous pressure-sensitive adhesive spraying device with evenly distributed nozzles, comprising a fixed bottom plate (1), support legs (2), an upper support plate (3), and a storage tank (4), characterized in that: At the top of the upper support plate (3) and located on the side of the storage box (4), a pump body (8) is fixedly installed. One end of the pump body (8) extends to the position of the storage box (4) through a pipeline and is connected. The other end of the pump body (8) is connected with a first drainage pipe (10). The bottom of the first drainage pipe (10) is connected with a second drainage pipe (11). A corrugated telescopic end (12) for telescoping is assembled on the second drainage pipe (11). Below the second drainage pipe (11), there is a storage pipe (14). The top of the storage pipe (14) is connected with a connecting pipe (18). The tail end of the second drainage pipe (11) is communicated with the connecting pipe (18). A temporary storage area (20) for storing materials is formed in the storage pipe (14). Uniformly distributed cone blocks (21) are fixed at the bottom of the temporary storage area (20). Vertical grooves (23) are uniformly opened in the uniformly distributed cone blocks (21). Flow distribution holes (22) are opened in the bottom of the storage pipe (14). At the position corresponding to the flow distribution holes (22) at the bottom of the storage pipe (14), a spray painting nozzle (16) for spraying is assembled. The vertical positions of the multiple vertical grooves (23) correspond to the vertical positions of the multiple flow distribution holes (22) one by one. The cross section of the uniformly distributed cone blocks (21) is designed in a conical shape, and the cone angle at the uniformly distributed cone blocks (21) is 2 degrees - 6 degrees.

2. The water-based back glue spraying device with evenly distributed nozzles according to claim 1, characterized in that: The spray painting nozzles (16) are evenly distributed in five groups at the bottom of the flow distribution holes (22). Both the vertical grooves (23) and the flow distribution holes (22) are designed in five groups.

3. The water-based back glue spraying device with uniformly distributed nozzles according to claim 1, characterized in that: The height of the vertical groove (23) in the middle is greater than the heights of the vertical grooves (23) on both sides. The heights of the two vertical grooves (23) on both sides gradually decrease towards the side.

4. A water-based back glue spraying device with evenly distributed nozzles according to claim 1, characterized in that: On the front end face of the storage box (4), a measurement marking line (7) for measurement is marked. On the side position at the top of the storage box (4), a feeding port (6) for feeding is connected and assembled. A valve for controlling the flow rate is equipped on the feeding port (6).

5. The water-based back glue spraying device with evenly distributed nozzles according to claim 1, characterized in that: A driving motor (5) is assembled on the side of the storage box (4). The driving motor (5) is fixedly supported on the side of the storage box (4) by a support plate. A storage cavity (37) for storing materials is formed in the storage box (4). A stirring shaft (38) is assembled at the side position inside the storage cavity (37).

6. The water-based back glue spraying device with evenly distributed nozzles according to claim 5, characterized in that: The driving motor (5) is connected with a coupling. The coupling is connected with a transmission shaft. The stirring shaft (38) is assembled on the side of the transmission shaft. Stirring blades are uniformly distributed on the outer part of the stirring shaft (38).

7. The water-based back glue spraying device with evenly distributed nozzles according to claim 1, wherein: Two left and right adjustment boxes (17) are fixed on the top of the fixed base plate (1), a servo motor (13) is installed on the top of the right adjustment box (17), the output end of the servo motor (13) is connected to a threaded rod (31), the threaded rod (31) is transferred to the inside of the right adjustment box (17), the outer thread of the threaded rod (31) is connected to a threaded block (32), the inner part of the left adjustment box (17) is fixed with a guide rod (28), the outer part of the guide rod (28) is slidably connected to a slider (29), the sides of the threaded block (32) and the slider (29) are fixed with guide shafts (30), and the sides of the two adjustment boxes (17) are provided with limited guide grooves (33).

8. The water-based back glue spraying device with uniformly distributed nozzles according to claim 7, characterized in that: Side connecting shafts (15) are fixed on both sides of the material storage tube (14); the guide shaft rod (30) passes through the inside of the guide groove (33) and is connected and fixed to the side connecting shaft (15); the two side connecting shafts (15) are respectively connected and fixed to the two guide shaft rods (30).

9. The water-based back glue spraying device with uniformly distributed nozzles according to claim 7, characterized in that: A first assembly arc plate (34) is fixed at the top and bottom of the guide groove (33), a movable second assembly arc plate (35) is sleeved and inserted in the first assembly arc plate (34), and a movable third assembly arc plate (36) is sleeved and inserted in the second assembly arc plate (35), the bottom end of the upper third assembly arc plate (36) and the top end of the lower third assembly arc plate (36) are fixed to the upper and lower positions of the guide shaft (30), and the spacing of the left and right adjustment vertical box (17) is greater than the horizontal length of the storage tube (14).

10. The water-based back glue spraying device with evenly distributed nozzles according to claim 1, characterized in that: A welding head (24) is welded and fixed to the side of the upper support plate (3), a first connecting rod (9) is welded and fixed to the side of the welding head (24), a second connecting rod (25) is welded and fixed to the top of the first connecting rod (9), a supporting arc frame (26) for supporting the first drainage tube (10) is welded and fixed to the top of the second connecting rod (25), a protective pad (27) is glued and fixed to the top arc surface of the supporting arc frame (26), and a telescopic kit (19) is fixed below the first drainage tube (10), the telescopic kit (19) is formed by two sleeve rods being telescopically sleeved, the bottom sleeve rod is connected to the top of the material storage tube (14), and the top sleeve rod is fixed to the bottom of the first drainage tube (10).

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