A drip-proof filling machine for viscous paint

Abstract

The present invention relates to the technical field of paint filling equipment, and specifically discloses an anti-drip filling machine for viscous paint, comprising a conveying unit, wherein a filling unit and a capping unit are respectively arranged at the left and right ends of the rear side of the conveying unit, the filling unit comprises a stand, a long box that moves up and down is arranged at the upper end of the front side of the stand, a cylindrical filling head is connected at the lower end of the long box, a hollow push rod is arranged through the top of the cylindrical filling head, a scraper disc that fits the inner wall of the cylindrical filling head is connected at the lower end of the hollow push rod, and a rotating rod that penetrates up and down is rotatably arranged inside the hollow push rod; the anti-drip filling machine disclosed by the present invention effectively solves the problem of residual material dripping on the inner wall of the cylindrical filling head after filling is completed, causing waste of raw materials and pollution of workbench, and the design of the anti-leakage material receiving mechanism can completely prevent the waste of raw materials and pollution of workbench caused by residual material dripping during the filling process of thick paint.

Description

Technical Field

[0001] The invention relates to the technical field of paint filling equipment, and in particular discloses a drip-proof filling machine for viscous paint. Background Art

[0002] Existing paints are usually filled into barrels by filling machines. During operation, the conveying base sends the packaging barrel to the bottom of the filling nozzle, and then the feeding pump is started to extract the paint and discharge it into the packaging barrel through the filling nozzle. After filling, the packaging barrel filled with paint is sent away first, and then the empty packaging barrel is sent to the bottom of the filling nozzle to wait for the next round of filling. During the switching of packaging barrels, paint dripping is easy to occur, especially some viscous paints, which have high viscosity with the inner wall of the filling nozzle and cannot be effectively discharged from the filling nozzle. As a result, the paint accumulated on the inner wall drips during the switching of packaging barrels, which not only causes waste of raw materials, but also seriously pollutes the entire filling machine.

[0003] The utility model patent with application number 202221826330.2 discloses a filling device for paint processing, including a filling machine body, the filling machine body includes a base, the top outer wall of the base is provided with a pillar, the top of the pillar is provided with a filling head, and the circumferential outer wall of the filling head is provided with a feed pipe; it also includes a leak-proof mechanism and a disassembly mechanism, the leak-proof mechanism includes a sleeve, the sleeve is provided on the circumferential outer wall of the filling head, and the inner cavity of the sleeve is provided with a sealing block; the disassembly mechanism is provided on the top outer wall of the sleeve, and the disassembly mechanism is used in conjunction with the leak-proof mechanism. The filling device disclosed in the patent avoids dripping of paint by providing a leak-proof mechanism in the filling head, but the design of the leak-proof mechanism has some shortcomings. First, the anti-leakage mechanism uses the spring on the inner wall of the sleeve to lift the sealing block, thereby sealing with the protrusion to prevent paint from dripping, while the paint on the inner wall of the sleeve below the sealing block will still flow downward and drip; second, when used for some viscous coatings, such as paint, latex paint and other coatings, the coating is more likely to adhere to the surface of the spring, and after it solidifies, the spring will fail and the sealing block cannot be lifted. Therefore, in view of the shortcomings in the design of the anti-leakage mechanism in the existing filling device for coating processing and the lack of practicality, this application proposes a filling machine that can effectively prevent dripping during the coating filling process and is particularly suitable for viscous coatings. Summary of the invention

[0004] The present invention aims to provide a filling machine specially used for viscous coatings, so as to solve the problem that the existing filling equipment is prone to dripping during the viscous coating filling process, resulting in coating dripping during the switching of packaging barrels, causing waste of raw materials and contamination of the filling machine.

[0005] The present invention is achieved through the following technical solutions: The conveying unit is provided with a filling unit and a capping unit at the left and right ends of the rear side of the conveying unit, respectively. The filling unit comprises a stand, and a long box which moves up and down is provided at the upper end of the front side of the stand, and the lower end of the long box is connected with a cylindrical filling head, and a feeding pipe is provided on one side of the upper end of the cylindrical filling head, and a hollow push rod is provided through the top of the cylindrical filling head. A second telescopic driving member for realizing the upward and downward movement of the hollow push rod is provided on the long box, and the lower end of the hollow push rod is connected with a scraper disk which fits the inner wall of the cylindrical filling head, and a rotating rod which passes through the hollow push rod is rotated inside, and a first bevel gear is connected to the top of the rotating rod, and an end block is connected to the lower end of the rotating rod, and a scraper plate is provided at the side end of the end block, and a scraper motor is provided at the lower end of the long box, and a second bevel gear aligned with the first bevel gear is provided on the motor shaft of the scraper motor.

[0006] In the process of filling viscous paint, the anti-drip filling machine disclosed in the present invention conveys the packaging barrel to the right below the cylindrical filling head by the conveying unit, and then pushes the cylindrical filling head downward to a level close to the barrel mouth of the packaging barrel to avoid paint splashing due to a large drop during the filling process. Then, the feeding pump is started to convey the viscous paint along the feeding pipe to the inside of the cylindrical filling head, and then the viscous paint falls downward along the cylindrical filling head into the packaging barrel, and the feeding is stopped until the viscous paint in the packaging barrel reaches a set amount.

[0007] Then, the second telescopic driving member is started to pull the hollow push rod downward. During the downward movement of the hollow push rod, the scraper disc will be attached to the inner wall of the cylindrical filling head and move downward, so that the viscous paint remaining on the inner wall of the cylindrical filling head is scraped off by the scraper disc until the scraper disc moves down to the bottom of the cylindrical filling head. At this time, the first bevel gear at the upper end of the rotating rod is meshed with the second bevel gear, and the scraper motor is started to rotate the second bevel gear, and then the rotating rod is rotated under the meshing transmission of the gears. The scraper plate is rotated by the action of the rotating rod, so that the thick paint remaining on the lower surface of the scraper disc and the inner wall of the bottom of the cylindrical filling head is scraped off to avoid remaining in the cylindrical filling head.

[0008] As a further configuration of the above solution, the scraper plate is inserted into the interior of the end block for connection, and the end of the scraper plate extending into the interior of the end block is connected to the inner wall of the end block through a spring.

[0009] As a further configuration of the above scheme, the outer upper end of the scraper plate fits with the outer edge of the lower surface of the scraper disc, and the outer lower end of the scraper plate fits with the inner wall of the bottom of the cylindrical filling head. The above-mentioned connection through the spring and the shape design of the scraper plate can keep a certain distance between the outer end of the scraper plate and the inner wall of the cylindrical filling head, ensuring that the scraper disc can fully fit and contact with the inner wall of the cylindrical filling head during the downward movement, so as to effectively scrape off the residual material on the inner wall of the cylindrical filling head. In addition, during the rotation of the scraper plate, it can move outward through centrifugal force until it is fully in contact with the outer edge of the lower surface of the scraper disc and the inner wall of the bottom of the cylindrical filling head, thereby ensuring that during the rotating scraping process, the scraper plate can effectively remove all residual material at the bottom of the cylindrical filling head.

[0010] As a further configuration of the above scheme, a vertical slide rail is provided at the front upper end of the stand, a lifting block is slidably provided on the vertical slide rail, the long box is connected to the lifting block, and a first telescopic driving member connected to the lifting block is provided at the upper end of the stand. The above structural design can make the lifting block move up and down along the vertical slide rail through the action of the first driving telescopic member, thereby realizing the stable up and down movement of the long box and the cylindrical filling head.

[0011] As a further arrangement of the above scheme, an anti-leakage material receiving mechanism is arranged directly below the cylindrical filling head, and the anti-leakage material receiving mechanism includes a residual material discharge groove fixedly connected to the stand, and the front end of the residual material discharge groove is fixedly connected to a U-shaped seat, and roller grooves are provided on both side walls of the U-shaped seat, and a material receiving groove that moves back and forth is arranged between the two roller grooves, and a wheel axle is arranged through the front end of the material receiving groove, and rollers that act on the roller grooves are arranged at both ends of the wheel axle, and a protrusion that supports the bottom of the material trough is arranged in the middle of the U-shaped seat.

[0012] As a further configuration of the above scheme, the material receiving trough is in the shape of an elongated strip, and the material receiving trough is configured with a gravity distribution having a small front end and a large rear end with the wheel axle as a dividing point.

[0013] As a further configuration of the above scheme, a rotating seat is provided on the standing seat, a rotating shaft is rotatably provided in the rotating seat, and a first gear and a second gear are respectively provided at both ends of the rotating shaft, a side end of the lifting block is connected with a first rack extending vertically downward and meshing with the first gear, a guide slide rod is fixed in the standing seat, a second rack moving forward and backward and meshing with the second gear is inserted in the guide slide rod, and the front end of the second rack is rotatably connected to the wheel axle.

[0014] The above is a further extended design of the technical solution of the drip-proof filling machine in the present invention. The leak-proof material receiving mechanism can receive the residual material dripping from the cylindrical filling head during the process of stopping filling and switching the packaging barrel. During the specific operation, when the cylindrical filling head moves downward for filling, the first rack will move downward synchronously, and the second gear will rotate through the meshing transmission between the first rack and the first gear, and then the second rack will move backward under the meshing transmission between the second gear and the second rack, thereby pulling the material receiving trough backward to be misaligned with the bottom of the cylindrical filling head. At this time, because the roller is located in the roller groove on the rear side of the cam, the material receiving trough will tilt downward, and the thick paint previously received will be discharged into the residual material discharge trough; and when the filling is completed, the cylindrical filling head moves upward. When the gear is in motion, the first rack moves upward synchronously, and then the second gear rotates through the meshing transmission between the first rack and the first gear, and then the second rack moves forward under the meshing transmission between the second gear and the second rack. At this time, the material receiving trough is pushed forward to the bottom of the cylindrical filling head. At the same time, because the roller is located in the roller groove on the front side of the cam, the material receiving trough is horizontal. At this time, the material receiving trough can receive the viscous paint remaining and dripping from the cylindrical filling head to prevent it from dripping on the table of the filling machine and causing pollution.

[0015] As a further configuration of the above scheme, a linear bearing is provided at the bottom of the long box, which is concentric with and connected to the cylindrical filling head, and the hollow push rod passes through the linear bearing. The design of the linear bearing enables the hollow push rod to stably move up and down between the long box and the cylindrical filling head.

[0016] As a further configuration of the above solution, the end of the feed pipe is connected to the feed pump and the paint tank through a feed pipe.

[0017] As a further configuration of the above scheme, the conveying unit includes a horizontally arranged conveying seat, in which a row of conveying rollers are rotatably arranged, a plurality of support frames are arranged on the lower surface of the conveying seat, and rollers are arranged at the lower end of the support frames, and a frame plate for installing a filling unit and a capping unit is arranged on the rear side of the conveying seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The anti-drip filling machine disclosed in the present invention arranges a special scraping mechanism inside the cylindrical filling head. After the viscous material is filled, the scraping disc is first pushed downward from the top of the cylindrical filling head, so that the scraping disc scrapes off all the residual material originally adhering to the inner wall of the cylindrical filling head until it is scraped to the bottom of the cylindrical filling head, and then the residual material on the lower surface of the scraping disc and the inner wall of the bottom of the cylindrical filling head is completely removed by the rotating scraping action of the scraper plate, which effectively solves the problem of residual material dripping on the inner wall of the cylindrical filling head after filling, causing waste of raw materials and table pollution.

[0019] The present invention further provides an anti-leakage material receiving mechanism linked with the filling action at the lower end of the cylindrical filling head, and the material receiving trough in the anti-leakage material receiving mechanism can automatically move backwards and be misaligned with the cylindrical filling head front and back during the downward movement of the cylindrical filling head, so as to ensure that the viscous paint discharged from the cylindrical filling head falls smoothly into the packaging barrel; when the filling is completed and the residual material inside the cylindrical filling head is cleaned up and moves upward, the material receiving trough can automatically move forward to the bottom of the cylindrical filling head and maintain a horizontal state, so that a small amount of residual material that has not been cleaned up in the cylindrical filling head directly drips into the material receiving trough, and then can be switched to a downward inclined state during the next backward movement, so that the thick paint received in the material receiving trough is discharged into the residual material discharge trough, and finally the residual material discharge trough is directionally discharged and collected, which completely prevents the waste of raw materials and pollution of the workbench due to the dripping of residual material during the filling process of the thick paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the filling unit and the anti-leakage material receiving mechanism in the present invention from a first angle; Figure 4 It is a schematic diagram of the three-dimensional structure of the filling unit and the anti-leakage material receiving mechanism in the present invention from a second angle; Figure 5 It is a partial three-dimensional structural schematic diagram of the filling unit in the present invention; Figure 6 It is a partial cross-sectional internal three-dimensional structure schematic diagram of the filling unit in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the end block, the scraper plate and the spring when they are connected in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the leakage-proof material receiving mechanism in the first state of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the leakage-proof material receiving mechanism in the second state of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 9 , and describes the application in detail with reference to embodiments. Example 1

[0024] Example 1 discloses a drip-proof filling machine for viscous coatings, see the attached Figure 1 and attached Figure 2 The main body of the anti-drip filling machine includes a conveying unit 100, a filling unit 200, a capping unit 300 and a control unit 400. The conveying unit 100 includes a horizontally arranged conveying seat 101, in which a row of conveying rollers 102 are rotatably arranged, and a plurality of support frames 103 are arranged on the lower surface of the conveying seat 101, and rollers 104 are arranged on the lower surface of the support frames 103, so as to facilitate the movement of the entire anti-drip filling machine. A frame plate 105 is arranged on the rear side of the conveying seat 101, and the filling unit 200, the control unit 400 and the capping unit 300 are moved from left to right and installed on the frame plate 105, wherein the control unit 400 and the capping unit 300 are conventional technical means, which will not be described in detail in this embodiment.

[0025] Reference Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7 The filling unit 200 includes a stand 201 fixed on the frame 105, a vertical slide rail 202 is provided at the upper end of the front side of the stand 201, a lifting block 203 is slidably installed on the vertical slide rail 202, and a first telescopic driving member 204 for driving the lifting block 203 to move up and down is fixedly installed on the stand 201 above the lifting block 203. A long box 205 is fixedly connected to the front end of the lifting block 203, and a vertically downward cylindrical filling head 206 is connected to the lower end of the long box 205. A feeding pipe 207 is provided on one side of the upper end of the cylindrical filling head 206. The end of the feeding pipe 207 is connected to the feeding pump and the paint tank (not shown in the figure) through the feeding pipe 4, so that under the action of the feeding pump, the viscous paint in the paint tank can be quantitatively discharged into the inside of the cylindrical filling head 206, and then flows downward along the inner wall of the cylindrical filling head 206 to the packaging barrel 5 directly below.

[0026] A linear bearing 208 is provided on the bottom wall of the long box 205, which is axially aligned with the cylindrical filling head 206 and interconnected. A hollow push rod 209 is penetrated in the linear bearing 208. The lower end of the hollow push rod 209 is connected to a scraper disc 210 that fits the inner wall of the cylindrical filling head 206. The upper end of the hollow push rod 209 extends into the long box 205. At the same time, a strip opening aligned with the hollow push rod 209 is opened on one side of the long box 205. A connecting block 210 extending from a strip-shaped opening is connected to the top of the hollow push rod 209, and then a second telescopic driving member 211 is arranged at the bottom of the long box 205, and the upper end of the telescopic driving rod 211 is connected to the connecting block 210. Specifically, the second telescopic driving member 211 and the first telescopic driving member 204 can adopt either a cylinder or an electric push rod, so that under the action of the second telescopic driving member 211, the scraper disc 210 can move up and down along the inside of the cylindrical filling head 206, and can scrape off the viscous paint attached to the inner wall of the cylindrical filling head 206 during its downward movement.

[0027] A rotating rod 212 is rotatably connected inside the hollow push rod 209 through a built-in bearing, and the top of the rotating rod 212 extending out of the hollow push rod 209 is connected to a first bevel gear 213, and the lower end of the rotating rod 212 extending out of the scraper disc 210 is connected to an end block 214, and a scraper 215 is inserted at the side end of the end block 214. In the specific design, the inner end of the scraper plate 215 extends into the interior of the end block 214 and is connected to the inner wall of the end block 214 through a spring 216, and the outer end of the scraper plate 215 is set to a shape in which the upper end is in contact with the outer edge of the lower surface of the scraper disc 210, and the lower end is adapted to the inner wall of the bottom of the cylindrical filling head 206, so that the scraper plate 215 can scrape the lower surface of the scraper disc 210 and the inner wall of the bottom of the cylindrical filling head 206 at the same time during the rotation of the end block 214. Finally, a scraper motor 217 is fixedly installed on the lower side wall of the long box 205. The end of the scraper motor 217 extending into the inner cavity of the long box 205 is connected to a second bevel gear 218, and the second bevel gear 218 and the first bevel gear 213 are arranged on the same vertical line.

[0028] When the drip-proof filling machine disclosed in this embodiment 1 is used for filling viscous paint, the conveying unit 100 first conveys the packaging barrel 5 to the bottom of the cylindrical filling head 206, and then starts the first telescopic drive member 204 to push the cylindrical filling head 206 downward to a horizontal height close to the barrel mouth of the packaging barrel 5, and then starts the feeding pump to discharge the viscous paint in the paint tank into the inside of the cylindrical filling head 206 in a quantitative manner, so that it flows downward along the inner wall of the cylindrical filling head 206 to the packaging barrel 5 directly below.

[0029] When the viscous coating in the packaging barrel 5 reaches the set amount, the feeding pump is turned off to stop feeding, and then the second telescopic driving member 211 is started to push the hollow push rod 209 downward along the linear bearing 208. During its downward movement, the scraper disc 210 can scrape off all the viscous coating attached to the inner wall of the cylindrical filling head 206, and when the scraper disc 210 descends to the bottom position of the cylindrical filling head 206, the second bevel gear 218 is meshed with the first bevel gear 213, and then the scraper motor 217 is started to rotate the second bevel gear 218, and the gear meshing transmission is realized. The action will cause the rotating rod 212 to rotate, and finally the scraper plate 215 to rotate with the end block 214. During the rotation of the scraper plate 215, its centrifugal force overcomes the pulling force of the spring 216, so that the upper end of the scraper plate 215 scrapes the lower surface of the scraper disc 210, and the lower end scrapes the inner wall of the bottom of the cylindrical filling head 206, so that all the viscous paint attached to the inner wall of the bottom of the cylindrical filling head 206 and the lower surface of the scraper disc 210 are scraped off and fall into the packaging barrel 5, avoiding the leakage of residual paint during the subsequent switching of the packaging barrel 5. Example 2

[0030] Example 2 discloses an anti-drip filling machine that is further improved on the basis of the technical solution in Example 1, and its similarities with Example 1 are not described again.

[0031] Reference Figure 3 , Attachment Figure 4 , Attachment Figure 8 and attached Fig. 9 In this embodiment 2, an anti-missing material receiving mechanism 6 is arranged on the stand 201 below the cylindrical filling head 206. The anti-missing material receiving mechanism 6 includes a residual material discharge groove 601 fixedly connected to the stand 201. The residual material discharge groove 601 is L-shaped as a whole and is tilted downward at a certain angle, so that the viscous coating discharged into the residual material discharge groove 601 can be directionally discharged by the residual material discharge groove 601.

[0032] A U-shaped seat 602 fixedly connected to the residual material discharge slot 601 is arranged at the rear side directly below the cylindrical filling head 206, and roller slots 6021 are provided at the upper ends of both side walls of the U-shaped seat 602, and then a long strip material receiving slot 603 is arranged in the U-shaped seat 602 between the two roller slots 6021. A wheel axle 604 is fixedly passed through the material receiving slot 603, and the wheel axle 604 is arranged at a position close to the front end of the material receiving slot, so that the material receiving slot 603 can be distributed with the wheel axle 604 as the dividing point, with the front end having a small gravity and the rear end having a large gravity, and will tilt to the rear side without support. Rollers 605 that interact with corresponding roller grooves 6021 are provided at both ends of the wheel axle 604 extending out of the material receiving trough 603, and then a protrusion 606 that supports the bottom of the material receiving trough 603 is provided at the middle position of the bottom of the U-shaped seat 602. When the roller 605 is located in the roller groove 6021 on the front side of the cam 606, the material receiving trough 603 will be horizontal, and when the roller 605 is located in the roller groove 6021 on the rear side of the cam 606, the material receiving trough 603 will tilt downward and discharge the received viscous paint into the residual material discharge trough 601.

[0033] In order to realize the forward and backward movement of the receiving trough 603 in conjunction with the up and down movement of the cylindrical filling head 206, a rotating seat 607 is also provided on the stand 201, a rotating shaft 608 is rotatably provided in the rotating seat 607, a first gear 609 and a second gear 610 are respectively provided at both ends of the rotating shaft 608, and then a connecting rod 611 is provided at the side end of the lifting block 203, and a first rack 612 is provided vertically downward and meshed with the first gear 609 at the end of the connecting rod 611. A guide slide bar 613 that penetrates front and back is fixed in the stand 201, a second rack 614 meshed with the second gear 613 is inserted in the guide slide bar 613, and the front end of the second rack 614 is rotatably connected to the middle position of the wheel shaft 604.

[0034] In the second embodiment, the leak-proof material receiving mechanism 6 is designed as above. When the cylindrical filling head 206 is filled and cleaned and moves upward, the first rack 612 is moved upward synchronously by the action of the connecting rod 611. Then, the second gear 610 is rotated by the meshing transmission between the first rack 612 and the first gear 609. Then, the second gear 614 is moved forward by the meshing transmission between the second gear 610 and the second rack 614. At this time, the material receiving trough 603 is moved forward to the bottom of the cylindrical filling head 206 under the push of the second rack 614. At the same time, because the roller 605 is located in the roller groove 6021 on the front side of the cam 606, the material receiving trough 603 is in a horizontal state. At this time, the material receiving trough 603 can receive the viscous coating that remains and drips from the cylindrical filling head 206 (refer to the attached Figure 8 ).

[0035] When the cylindrical filling head 206 moves downward for filling, the first rack 612 will move downward synchronously, and the second gear 610 will rotate through the meshing transmission between the first rack 612 and the first gear 609, and then the second gear 610 will move backward under the meshing transmission between the second gear 610 and the second rack 614, so that the material receiving trough 603 is pulled backward to be misaligned with the cylindrical filling head 206. At this time, because the roller 605 is located in the roller groove 6021 on the rear side of the cam 606, the material receiving trough 603 will be tilted downward (refer to the attached Fig. 9 ), and discharge the previously received thick paint into the residual material discharge groove 601, and finally the residual paint received can be discharged from the residual material discharge groove 601 in a directional manner.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drip-proof filling machine for viscous paint, comprising a conveying unit, wherein a filling unit and a capping unit are respectively arranged at the left and right ends of the rear side of the conveying unit, characterized in that: The filling unit includes a stand, a long box that moves up and down is provided at the upper front end of the stand, the lower end of the long box is connected with a cylindrical filling head, a feeding pipe is provided on one side of the upper end of the cylindrical filling head, a hollow push rod is penetrated through the top of the cylindrical filling head, a second telescopic driving member is provided on the long box to realize the up and down movement of the hollow push rod, the lower end of the hollow push rod is connected with a scraper disc that fits with the inner wall of the cylindrical filling head, a rotating rod that penetrates up and down is provided inside the hollow push rod for rotation, the top of the rotating rod is connected with a first bevel gear, the lower end of the rotating rod is connected with an end block, the side end of the end block is provided with a scraper plate, the lower end of the long box is provided with a scraper motor, and the motor shaft of the scraper motor is provided with a second bevel gear that is aligned with the first bevel gear up and down.

2. The anti-drip filling machine for viscous coating according to claim 1, characterized in that: The scraper plate is inserted into the interior of the end block for connection, and the end of the scraper plate extending into the interior of the end block is connected to the inner wall of the end block through a spring.

3. The anti-drip filling machine for viscous coating according to claim 2, characterized in that: The outer upper end of the scraper plate fits with the outer edge of the lower surface of the scraper disc, and the outer lower end of the scraper plate fits with the inner wall of the bottom of the cylindrical filling head.

4. The anti-drip filling machine for viscous coating according to claim 1, characterized in that: A vertical slide rail is arranged at the front upper end of the stand, a lifting block is slidably arranged on the vertical slide rail, the long box is connected to the lifting block, and a first telescopic driving member connected to the lifting block is arranged at the upper end of the stand.

5. The anti-drip filling machine for viscous coating according to claim 4, characterized in that: A material receiving mechanism for preventing leakage is arranged directly below the cylindrical filling head, and the material receiving mechanism for preventing leakage includes a residual material discharge groove fixedly connected to the stand, a U-shaped seat is fixedly connected to the front end of the residual material discharge groove, roller grooves are provided on both side walls of the U-shaped seat, a material receiving groove that moves back and forth is arranged between the two roller grooves, a wheel axle is penetrated through the front end of the material receiving groove, rollers that act on the roller grooves are arranged at both ends of the wheel axle, and a convex block that supports the bottom of the material trough is arranged in the middle of the U-shaped seat.

6. The anti-drip filling machine for viscous coating according to claim 5, characterized in that: The material receiving trough is in the shape of an elongated strip, and the material receiving trough is arranged in a gravity distribution with the wheel axle as a dividing point, with the front end having a small gravity and the rear end having a large gravity.

7. The anti-drip filling machine for viscous coating according to claim 6, characterized in that: The stand is provided with a rotating seat, a rotating shaft is rotatably provided in the rotating seat, and a first gear and a second gear are respectively provided at both ends of the rotating shaft, a side end of the lifting block is connected with a first rack which is vertically downward and meshed with the first gear, a guide slide bar is fixed in the stand, a second rack which moves back and forth and meshes with the second gear is inserted in the guide slide bar, and a front end of the second rack is rotatably connected to the wheel axle.

8. The anti-drip filling machine for viscous coating according to claim 1, characterized in that: A linear bearing which is concentric with and connected to the cylindrical filling head is arranged at the bottom of the long box, and the hollow push rod passes through the linear bearing.

9. The anti-drip filling machine for viscous coating according to claim 1, characterized in that: The end of the feed pipe is connected to the feed pump and the paint tank through a feed pipe.

10. The anti-drip filling machine for viscous coating according to claim 1, characterized in that: The conveying unit includes a horizontally arranged conveying seat, in which a row of conveying rollers are rotatably arranged, a plurality of support frames are arranged on the lower surface of the conveying seat, and rollers are arranged at the lower ends of the support frames, and a frame plate for installing a filling unit and a capping unit is arranged on the rear side of the conveying seat.

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