A filling equipment for waterproof coating production

Abstract

The present invention discloses a filling device for producing waterproof coatings, which relates to the technical field of coating production, and comprises a central shaft rotatably connected to the feeding end of a material guiding pressure tank, a guide rotating plate fixedly connected to the central shaft for adjusting a filling trajectory, an inner spiral plate and an outer spiral plate distributed in a circumferential posture at the lower end of the central shaft, and a filling nozzle driven by the rotation of the guide rotating plate to alternately move along proximal and distal spiral trajectories between the inner spiral plate and the outer spiral plate. The present invention proposes a filling form of spiral reciprocation from outside to inside and then from inside to outside for liquids with poor fluidity such as coatings. The filling form of spiral reciprocation from outside to inside and then from inside to outside is utilized to first spread a layer of coating in a connected and stable spiral posture, and then returns to spread the upper layer again in a reverse spiral posture. The material spreading no longer relies on the fluidity of the coating, and effectively avoids the problem of air being easily covered and remaining inside the coating in contact with the cylinder wall caused by spreading the material relying on fluidity diffusion.

Description

Technical Field

[0001] The invention relates to the technical field of coating production, in particular to a filling device for producing waterproof coating. Background Art

[0002] Paint is used for building decoration, which can effectively protect the environment, is non-toxic and non-irritating, and is a green and environmentally friendly product. After the paint is produced, it needs to be filled into containers of the same capacity using filling equipment.

[0003] For example, a filling equipment for fire-retardant coating production with publication number CN119143067A, through the cleaning mechanism set up, with the help of cleaning pads set on the upper and lower outer walls of the movable plate, the coating that is about to drip from the bottom of the liquid outlet pipe and the coating attached to the top of the container can be cleaned together, so as to avoid a small amount of coating dripping downward from the surface of the liquid outlet pipe for a long time, which will affect the use of the equipment. At the same time, the top of the container without a cover on the top is clamped and fixed by two mutually cooperating clamps, and the two second electric telescopic rods are extended upward to drive the container to move upward and disengage from between the conveyor disk and the arc plate, and the third drive motor is used to drive the rotating block and the two rotating plates to rotate, thereby driving the clamped container to move to the top of the waste channel, thereby achieving the effect of automatically picking and processing the container without a cover on the top.

[0004] The problems raised in the above patent technology and other existing technologies are mostly problems that can be seen on the surface during the filling of paint. In fact, there are some hidden problems that are "hidden" in the filling process and are difficult to be discovered, such as:

[0005] The container for holding paint generally has a large opening and a wide contact surface with the air, while the caliber of the filling nozzle is generally small and the discharge speed and angle are relatively fixed. That is to say, the small-caliber filling nozzle can only discharge material from a small area of ​​the holding barrel. This makes the holding barrel be filled by the accumulation of paint discharged from the center and then slowly flowing to the outer edge. For liquids with greater fluidity, this filling method is more reasonable, but for paints with poor fluidity, this filling method that relies on its own fluidity diffusion can easily cause air to be covered inside the paint in contact with the barrel wall, and the paint has poor fluidity and the air cannot rely on its own lift to pass through the paint. The most critical thing is that the problem will be covered up and not easy to be discovered, resulting in air remaining in the sealed barrel. On the one hand, the paint cannot be exposed to air during long-term storage, which will accelerate the aging of the paint around the air, thereby affecting the quality of the paint. On the other hand, it will cause the actual capacity of the barreled paint to be lower than the standard capacity.

[0006] In addition, the existing paint filling mostly adopts conveyor belt production lines, in which empty paint buckets are placed on the conveyor belt and then transported to the filling operation area by the conveyor belt for automatic filling. In fact, when the empty paint buckets are manually placed on the conveyor belt, the absolutely accurate center positioning cannot be guaranteed, and there will be a certain deviation. After the paint buckets that deviate from the center enter the filling area, there will be a deviation area that cannot overlap with the filling area, and the paint in the deviation area will fall on the outer wall of the bucket and the conveyor belt, causing paint waste and causing the actual capacity of the bucket paint to be lower than the standard capacity.

[0007] In view of the above problems, it is urgent to carry out innovative design based on the original filling equipment for waterproof coating production. Summary of the invention

[0008] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. Specifically, the purpose of the present invention is to provide a filling device for the production of waterproof coatings, so as to solve the problem that the filling method relying on its own fluidity diffusion proposed in the above-mentioned background technology can easily cause air to be covered inside the coating in contact with the barrel wall, and the coating has poor fluidity and the air cannot rely on its own lift to pass through the coating. The most critical thing is that the problem will be covered up and not easy to be discovered, resulting in air remaining in the sealed barrel. On the one hand, the coating cannot be exposed to air during long-term storage, which will accelerate the aging of the paint around the air, thereby affecting the quality of the coating. On the other hand, it will cause the actual capacity of the barreled coating to be lower than the standard capacity.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filling device for the production of waterproof coatings, comprising a conveying platform, a filling bracket fixed above the conveying platform and a material guiding pressure tank inverted on the filling bracket, and also comprising a central shaft rotatably connected to the feeding end of the material guiding pressure tank, a guide rotating plate fixedly connected to the central shaft for adjusting the filling trajectory, an inner spiral plate and an outer spiral plate distributed in a circumferential posture at the lower end of the central shaft, and a filling nozzle driven by the rotation of the guide rotating plate to alternately move according to proximal and distal spiral trajectories between the inner spiral plate and the outer spiral plate, positioning plates are distributed at equal angles on the outside of the central shaft, and the outer end of the positioning plate is equipped with a centered clamping positioning component that can simultaneously adapt to the upper edge and bevel of the coating filling barrel.

[0010] Preferably, the outer wall of the central axis is provided with a collar, and the positioning plate is fixed to the side wall of the collar at equal angles;

[0011] The positioning plate is an L-shaped arrangement through which the guide rotating plate can pass, and an upper pressing plate is fixed to the outer ends of the positioning plate.

[0012] Preferably, the sides of one of the upper pressing plates are fixedly connected to the outer ends of the inner spiral plate and the outer spiral plate, respectively, the inner spiral plate and the outer spiral plate are located in the same plane, and the inner spiral plate and the outer spiral plate are made of elastic material;

[0013] The upper end of the filling nozzle is columnar and has a circular diameter that is the same as the distance between the inner spiral plate and the outer spiral plate, and the inner ends of the inner spiral plate and the outer spiral plate are fixedly connected to the stationary ring at the lower end of the central shaft.

[0014] Preferably, a positioning ring coaxial with the central axis is fixed to the upper surface of the positioning plate, and an electric telescopic rod is fixed to the upper surface of the positioning ring.

[0015] Preferably, a driven gear is concentrically fixed to the outer wall of the upper end of the central shaft, and a transmission gear is meshed on the side of the driven gear. The lower end of the central transmission shaft of the transmission gear is installed on the upper surface of one of the positioning plates, and the upper end of the central transmission shaft is connected to the output rotor of the servo motor.

[0016] Preferably, one end of an elastic bellows is fixed to the outer wall of the central shaft, and the other end of the elastic bellows is connected to the upper end of the filling nozzle after being bent in an L shape, and the elastic bellows is connected through the central cavity inside the central shaft.

[0017] Preferably, the guide rotating plate is arranged in parallel with the elastic bellows, and a guide through groove for the proximal and distal sliding of the filling nozzle is provided inside the guide rotating plate, and the upper end of the filling nozzle is arranged inside the filling nozzle in a snap-fitting sliding manner;

[0018] The side wall of the guide through groove is provided with a slide rail, and the outer wall of the filling nozzle is fixed with a support ring which can slide within the slide rail.

[0019] Preferably, the centrally-centered clamping and positioning assembly comprises a fixed disk, a vortex spring, a side pressure plate, a side pressure roller and a pin shaft, the inner wall of the upper pressure plate is symmetrically fixed with a fixed disk, and the end of the pin shaft is provided through the hollow groove of the fixed disk, a vortex spring is provided between the pin shaft and the inner wall of the hollow groove of the fixed disk, one end of the vortex spring is welded to the outer wall of the pin shaft, and the other end of the vortex spring is fixed to the inner wall of the hollow groove;

[0020] A side pressure plate is fixed to the outer wall of the pin shaft, and the lower surface of the upper pressure plate is provided with a lower opening groove for the side pressure plate to rotate, and side pressure rollers for pressing and fitting with the oblique edge of the filling barrel are installed at equal intervals on the inner side of the side pressure plate, and the lower surface of the upper pressure plate is pressed and fitted with the upper edge of the filling barrel.

[0021] Preferably, the inner wall of the hollow groove is provided with slots at equal angles, and one end of a block is slidably provided inside the slot, and the other end of the block is fixed to the outer wall of the pin shaft.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. When filling starts, the central axis will synchronously drive the elastic bellows and the guide rotating plate to rotate counterclockwise, and the filling nozzle will perform a spiral proximal rotation along the gap between the inner spiral plate and the outer spiral plate under the push of the inner wall of the guide groove inside the guide rotating plate. At this time, the filling nozzle will spread the material in a spiral proximal manner according to the equidistant gap between the inner spiral plate and the outer spiral plate. When the filling nozzle gradually spirally moves to the innermost end of the spiral gap between the inner spiral plate and the outer spiral plate, the servo motor reverses and drives the central axis to rotate clockwise. Similarly, the filling nozzle will spirally move along the spiral gap between the inner spiral plate and the outer spiral plate. The invention proposes a filling method of spiral reciprocating from outside to inside and then from inside to outside for liquids with poor fluidity such as paint. The filling method of spiral reciprocating from outside to inside and then from inside to outside is used to spread a layer of paint in a connected and stable spiral posture, and then return to spread the upper layer again in a reverse spiral posture. The material is no longer spread by the fluidity of the paint, which effectively avoids the problem of air being easily covered and remaining inside the paint in contact with the cylinder wall caused by spreading by relying on fluidity diffusion.

[0024] 2. The side pressure rollers on the inner sides of the three sets of side pressure plates will contact the corresponding upper edges of the paint buckets at different angles when falling, and will drive the pins to rotate adaptively in the fixed plate after receiving the pressure from the upper edge of the paint bucket. As the whole body continues to fall, the side pressure rollers on the inner sides of the three sets of side pressure plates will squeeze and push the upper edge of the paint bucket from three angles, causing the paint bucket to gradually move on the conveyor belt until the deviation is completely compensated. The centering adjustment of the paint bucket is completed. As the whole body continues to fall, the upper edge of the paint bucket will be adaptively transferred from the side pressure rollers to the lower surface of the upper pressure plate, and the beveled edge of the upper end of the paint bucket will fit the side pressure rollers on the inner side of the side pressure plate, thereby forming an adaptive compensation and adjustment for the center offset of the paint bucket. At the same time, the cooperation of the upper pressure plate and the side pressure plate can be used to center paint buckets of different sizes within a certain range, thereby ensuring the precise overlap of the filling area and the filling bucket mouth during filling, and avoiding the problem of paint falling out caused by non-overlapping areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0027] Figure 3 It is a three-dimensional schematic diagram of the filling structure of the present invention.

[0028] Figure 4 It is a schematic diagram of the installation structure of the inner spiral plate and the outer spiral plate of the present invention.

[0029] Figure 5 It is a schematic diagram of the connection structure between the filling nozzle and the guide rotating plate of the present invention.

[0030] Figure 6 It is a schematic diagram of the connection structure of the inner spiral plate, the outer spiral plate and the upper pressing plate of the present invention.

[0031] Figure 7 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0032] Figure 8 It is a front view cross-sectional schematic diagram of the upper pressing plate and the side pressing plate of the present invention.

[0033] Fig. 9 It is a front cross-sectional schematic diagram of the fixing plate and the pin shaft of the present invention.

[0034] In the figure: 1. conveying platform; 2. filling bracket; 21. material guide pressure tank; 22. electric telescopic rod; 3. central axis; 31. collar; 32. positioning plate; 33. positioning ring; 34. servo motor; 35. transmission gear; 36. driven gear; 4. elastic bellows; 41. filling nozzle; 42. slide rail; 5. guide plate; 6. inner spiral plate; 7. outer spiral plate; 8. upper pressure plate; 81. fixed plate; 82. slot; 83. block; 84. vortex spring; 9. side pressure plate; 91. side pressure roller; 92. pin shaft. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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] See also Figures 1 to 9 The present invention provides a technical solution: a filling device for producing waterproof coatings, comprising a conveying platform 1, a filling bracket 2 fixed above the conveying platform 1, and a material guiding pressure tank 21 inverted on the filling bracket 2, and also comprising a central shaft 3 rotatably connected to the conveying end of the material guiding pressure tank 21, a guide rotating plate 5 fixedly connected to the central shaft 3 for adjusting the filling trajectory, an inner spiral plate 6 and an outer spiral plate 7 distributed in a surrounding posture at the lower end of the central shaft 3, and a filling nozzle 41 driven by the rotation of the guide rotating plate 5 to alternately move between the inner spiral plate 6 and the outer spiral plate 7 according to the proximal and distal spiral trajectories, positioning plates 32 are distributed at equal angles on the outside of the central shaft 3, and the outer end of the positioning plate 32 is equipped with a centering clamping positioning component that can simultaneously adapt to the upper edge and the bevel of the coating filling barrel.

[0037] The outer wall of the central shaft 3 is sleeved with a collar 31, and a positioning plate 32 is fixed to the side wall of the collar 31 at an equal angle;

[0038] The positioning plate 32 is L-shaped so that the guide rotating plate 5 can pass through, and the outer ends of the positioning plate 32 are fixed with upper pressing plates 8.

[0039] The sides of an upper pressing plate 8 are fixedly connected to the outer ends of the inner spiral plate 6 and the outer spiral plate 7 respectively, the inner spiral plate 6 and the outer spiral plate 7 are located in the same plane, and the inner spiral plate 6 and the outer spiral plate 7 are made of elastic material;

[0040] The upper end of the filling nozzle 41 is cylindrical and has a circular diameter that is the same as the distance between the inner spiral plate 6 and the outer spiral plate 7 , and the inner ends of the inner spiral plate 6 and the outer spiral plate 7 are fixedly connected to the stationary ring at the lower end of the central shaft 3 .

[0041] A positioning ring 33 coaxial with the central axis 3 is fixed on the upper surface of the positioning plate 32 , and the electric telescopic rod 22 is fixed on the upper surface of the positioning ring 33 .

[0042] A driven gear 36 is concentrically fixed to the outer wall of the upper end of the central shaft 3, and a transmission gear 35 is meshed on the side of the driven gear 36. The lower end of the central transmission shaft of the transmission gear 35 is installed on the upper surface of a positioning plate 32, and the upper end of the central transmission shaft is connected to the output rotor of the servo motor 34.

[0043] One end of an elastic bellows 4 is fixed to the outer wall of the central shaft 3 , and the other end of the elastic bellows 4 is connected to the upper end of the filling nozzle 41 after being bent in an L shape, and the elastic bellows 4 is connected to the central through cavity inside the central shaft 3 .

[0044] The guide rotating plate 5 is arranged parallel to the elastic bellows 4, and a guide through groove for the filling nozzle 41 to slide proximally and distally is provided inside the guide rotating plate 5, and the upper end of the filling nozzle 41 is slidably arranged inside the filling nozzle 41 in a snap-fitting manner;

[0045] A slide rail 42 is provided on the side wall of the guide groove, and a support ring which can slide within the slide rail 42 with limited position is fixed on the outer wall of the filling nozzle 41 .

[0046] The center-type clamping and positioning assembly includes a fixed disk 81, a vortex spring 84, a side pressure plate 9, a side pressure roller 91 and a pin 92. The fixed disk 81 is symmetrically fixed to the inner wall of the upper pressure plate 8, and the end of the pin 92 is provided through the hollow groove of the fixed disk 81. The vortex spring 84 is provided between the pin 92 and the inner wall of the hollow groove of the fixed disk 81, and one end of the vortex spring 84 is welded to the outer wall of the pin 92, and the other end of the vortex spring 84 is fixed to the inner wall of the hollow groove;

[0047] A side pressure plate 9 is fixed to the outer wall of the pin shaft 92, and the lower surface of the upper pressure plate 8 has a lower opening groove for the side pressure plate 9 to rotate, and side pressure rollers 91 that are pressed and fitted with the oblique edge of the filling barrel are installed at equal intervals on the inner side of the side pressure plate 9, and the lower surface of the upper pressure plate 8 is pressed and fitted with the upper edge of the filling barrel.

[0048] The inner wall of the hollow groove is provided with a clamping groove 82 at an equal angle, and one end of a clamping block 83 is slidably provided inside the clamping groove 82 , and the other end of the clamping block 83 is fixed to the outer wall of the pin shaft 92 .

[0049] Working principle: When using the filling equipment produced by this waterproof coating, first Figure 1 and Figure 2 As shown, the paint bucket to be filled is placed in the central area of ​​the conveying platform 1 (it is difficult to achieve absolute accuracy through manual placement), and then the conveying platform 1 transports the paint bucket in the placement area to the filling area under the filling bracket 2 by the movement of the conveyor belt according to the setting, and then the conveyor belt stops, and then the electric telescopic rod 22 starts to drive the positioning ring 33 and all the components under the positioning ring 33 to fall together.

[0050] During the fall, Figure 3 and Figure 4 As shown, the side pressure rollers 91 evenly spaced inside the three sets of side pressure plates 9 will first contact the upper edge of the paint bucket. Assuming that the paint bucket has a certain position deviation (generally a small distance deviation, that is, a deviation within the coverage range of the three sets of side pressure plates 9), the side pressure rollers 91 inside the three sets of side pressure plates 9 will contact the corresponding upper edge of the paint bucket at different angles. Figure 8 and Fig. 9 As shown, when the three sets of side pressure plates 9 fall, they will drive the corresponding pin shafts 92 to adaptively rotate outward in the fixed plate 81 and compress the vortex spring 84 after receiving the pressure feedback from the upper edge of the paint bucket. At this time, as the whole continues to fall, the side pressure rollers 91 on the inner side of the three sets of side pressure plates 9 will exert an extrusion and pushing effect on the upper edge of the paint bucket from three angles. After the paint bucket is subjected to the gradually increasing and equi-angled extrusion and pushing effect, its position will gradually shift on the conveyor belt until the deviation is completely compensated, and the paint bucket is just centered. It is pressed tightly on the conveyor belt, and when the forces at three angles are exactly the same, and the side pressure roller 91 has better rolling friction properties, as the whole continues to fall, the upper edge of the paint bucket will be adaptively transferred from the side pressure roller 91 to the lower surface of the upper pressure plate 8, and the beveled edge of the upper end side of the paint bucket just fits with the side pressure roller 91 on the inner side of the side pressure plate 9, thereby forming an adaptive compensation and adjustment for the center offset of the paint bucket. At the same time, the cooperation of the upper pressure plate 8 and the side pressure plate 9 can be used to center the paint buckets of different sizes within a certain range.

[0051] Next, as mentioned above, when the whole body falls to a certain extent, the upper edge and the bevel of the paint bucket will be pressed and the upper pressing plate 8 and the conveying platform 1 will be used to press the paint bucket to achieve the positioning of the paint bucket and the three sets of positioning plates 32. At this time, the electric telescopic rod 22 stops falling as a whole. During this period, in addition to adjusting the position of the paint bucket by the upper pressing plate 8 and the side pressing plate 9, the spiral amplitudes of the inner spiral plate 6 and the outer spiral plate 7 are also adjusted synchronously, such as Figure 4 and Figure 6 As shown, during the period when the upper pressure plate 8 and the side pressure plate 9 adjust the position of the paint barrel, one group of upper pressure plates 8 will synchronously carry the outer ends of the inner spiral plate 6 and the outer spiral plate 7 to change position to adapt to paint barrels with different opening sizes. When the three groups of upper pressure plates 8 are positioned, the outer ends of the inner spiral plate 6 and the outer spiral plate 7 are just located above the side wall of the paint barrel. The above is the adjustment stage before filling.

[0052] When filling starts, the servo motor 34 and the material guide pressure tank 21 are started synchronously, and the servo motor 34 drives the transmission gear 35 to rotate clockwise and output, and the transmission gear 35 drives the central shaft 3 to rotate counterclockwise stably through the meshing transmission with the driven gear 36. Figure 4As shown, the central shaft 3 will synchronously drive the elastic bellows 4 and the guide rotating plate 5 to rotate counterclockwise, and under the push of the inner wall of the guide groove inside the guide rotating plate 5, the filling nozzle 41 will perform a spiral proximal rotational motion along the gap between the inner spiral plate 6 and the outer spiral plate 7, and the filling nozzle 41 will gradually undergo relative displacement inside the guide groove to meet the proximal need, and at the same time, the material guide pressure tank 21 will pressurize the introduced paint and convey it to the middle through cavity inside the central shaft 3, and then output it by the elastic bellows 4 and the filling nozzle 41 (the elastic bellows 4 has strong retractability). At this time, the filling nozzle 41 will spread the material in a spiral proximal manner according to the equidistant gap between the inner spiral plate 6 and the outer spiral plate 7. When the filling nozzle 41 gradually spirally moves to the innermost end of the spiral gap between the inner spiral plate 6 and the outer spiral plate 7, the servo motor 34 starts to reverse and drive the central shaft 3 to rotate clockwise. Similarly, the filling nozzle 41 will then spiral along the spiral gap between the inner spiral plate 6 and the outer spiral plate 7 in a spiral manner. The servo motor 34 rotates in a telecentric posture (the output speed of the rotor of the servo motor 34 is constant, and the time required for the filling nozzle 41 to move from the outside to the inside and from the inside to the outside is the same. Therefore, it is only necessary to set the servo motor 34 to reverse at a time to achieve "when the filling nozzle 41 gradually spirally moves to the innermost end of the spiral gap between the inner spiral plate 6 and the outer spiral plate 7, the servo motor 34 just starts to reverse at this time"). In this way, a special filling method that alternately combines the spiral proximal paving and the spiral telecentric paving of the filling nozzle 41 is realized. The present invention proposes a filling form of spiral reciprocating from outside to inside and then from inside to outside for liquids with poor fluidity such as paint. The filling form of spiral reciprocating from outside to inside and then from inside to outside is used to first spread a layer of paint in a connected stable spiral posture, and then return to spread the upper layer again in a reverse spiral posture. The material spreading no longer relies on the fluidity of the paint, and effectively avoids the problem of air being easily covered and remaining inside the paint in contact with the cylinder wall caused by spreading the material relying on fluidity diffusion.

[0053] Finally, when the paint bucket is filled to the standard amount, the filling is stopped and the electric telescopic rod 22 begins to retract to drive the entire paint bucket to rise and release the compaction and positioning of the paint bucket. Then the filled paint bucket can be removed and the empty paint bucket can be transported to the filling area by the conveyor platform 1 for refilling, forming a cycle operation.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filling device for producing waterproof coatings, comprising a conveying platform (1), a filling support (2) fixed above the conveying platform (1), and a material guide pressure tank (21) inverted on the filling support (2), characterized in that: The invention also comprises a central shaft (3) rotatably connected to the feeding end of the guide pressure tank (21), a guide rotating plate (5) fixedly connected to the central shaft (3) for adjusting the filling trajectory, an inner spiral plate (6) and an outer spiral plate (7) arranged in a surrounding posture at the lower end of the central shaft (3), and a filling nozzle (41) driven by the guide rotating plate (5) to alternately move between the inner spiral plate (6) and the outer spiral plate (7) along a proximal and distal spiral trajectory, wherein positioning plates (32) are distributed at equal angles on the outside of the central shaft (3), and the outer end of the positioning plate (32) is provided with a plurality of nozzles that can simultaneously adapt to the upper edge and the lower edge of the paint filling barrel. A center-type clamping and positioning assembly with an oblique edge, wherein the positioning plate (32) is L-shaped for the guide rotating plate (5) to pass through, and the outer ends of the positioning plates (32) are fixed with upper pressing plates (8), and the inner wall of the upper pressing plates (8) is symmetrically fixed with fixing plates (81), and the end of a pin shaft (92) is provided through a hollow groove of the fixing plate (81), one end of an elastic bellows (4) is fixed to the outer wall of the central shaft (3), and the other end of the elastic bellows (4) is connected to the upper end of the filling nozzle (41) after being bent in an L shape, and the elastic bellows (4) is connected to the central through cavity inside the central shaft (3).

2. The filling equipment for producing waterproof coating according to claim 1, characterized in that: The outer wall of the central shaft (3) is sleeved with a collar (31), and the positioning plate (32) is fixed at an equal angle to the side wall of the collar (31).

3. The filling equipment for producing waterproof coating according to claim 1 is characterized by: The sides of the upper pressing plate (8) are respectively fixedly connected to the outer ends of the inner spiral plate (6) and the outer spiral plate (7), the inner spiral plate (6) and the outer spiral plate (7) are located in the same plane, and the inner spiral plate (6) and the outer spiral plate (7) are made of elastic material; The upper end of the filling nozzle (41) is columnar and has a circular diameter that is the same as the distance between the inner spiral plate (6) and the outer spiral plate (7), and the inner ends of the inner spiral plate (6) and the outer spiral plate (7) are fixedly connected to the stationary ring at the lower end of the central shaft (3).

4. The filling equipment for producing waterproof coating according to claim 1 is characterized in that: A positioning ring (33) coaxial with the central axis (3) is fixed on the upper surface of the positioning plate (32), and an electric telescopic rod (22) is fixed on the upper surface of the positioning ring (33).

5. The filling equipment for producing waterproof coating according to claim 1 is characterized by: A driven gear (36) is concentrically fixed to the outer wall of the upper end of the central shaft (3), and a transmission gear (35) is meshed on the side of the driven gear (36). The lower end of the central transmission shaft of the transmission gear (35) is mounted on the upper surface of one of the positioning plates (32), and the upper end of the central transmission shaft is connected to the output rotor of the servo motor (34).

6. The filling equipment for producing waterproof coating according to claim 1, characterized in that: The guide rotating plate (5) is arranged in parallel with the elastic bellows (4), and a guide through groove for the proximal and distal sliding of the filling nozzle (41) is provided inside the guide rotating plate (5), and the upper end of the filling nozzle (41) is arranged in a snap-fitting manner inside the filling nozzle (41); A slide rail (42) is provided on the side wall of the guide groove, and a support ring which can slide within the slide rail (42) within a limited position is fixed to the outer wall of the filling nozzle (41).

7. The filling equipment for producing waterproof coating according to claim 1, characterized in that: The centrally located clamping and positioning assembly comprises a vortex spring (84), a side pressure plate (9) and a side pressure roller (91); a vortex spring (84) is arranged between the pin shaft (92) and the inner wall of the hollow groove of the fixed plate (81); one end of the vortex spring (84) is welded to the outer wall of the pin shaft (92), and the other end of the vortex spring (84) is fixed to the inner wall of the hollow groove; A side pressure plate (9) is fixed to the outer wall of the pin shaft (92), and a lower surface of the upper pressure plate (8) is provided with a lower opening groove for the side pressure plate (9) to rotate, and side pressure rollers (91) for pressing and fitting with the oblique edge of the filling barrel are installed at equal intervals on the inner side of the side pressure plate (9), and the lower surface of the upper pressure plate (8) is pressed and fitted with the upper edge of the filling barrel.

8. The filling equipment for producing waterproof coating according to claim 7, characterized in that: The inner wall of the hollow groove is provided with a clamping groove (82) at an equal angle, and one end of a clamping block (83) is slidably provided inside the clamping groove (82), and the other end of the clamping block (83) is fixed to the outer wall of the pin shaft (92).

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