Chain type mechanism based on liquid packaging material conveying

Abstract

The invention belongs to the technical field of conveying belts, and particularly discloses a chain type mechanism based on liquid packaging material conveying, which comprises a mounting frame, a chain type conveying belt is mounted on the inner side of the mounting frame, and a driving gear for driving the chain type conveying belt to rotate and a tensioning device for tensioning the chain type conveying belt are arranged on the inner side of the chain type conveying belt. The tensioning device comprises a movable shaft, a tensioning wheel, an adjusting assembly and a lubricating assembly. After the chain type conveying belt runs for a period of time, along with reverse rotation of the chain type conveying belt, the rotating disc can push the rotating shaft through the guide holes to enable the bristles on the surface of the rotating shaft to be in contact with the connecting positions of the chain plates, so that the bristles can evenly smear lubricating grease on the connecting positions of the chain plates in the process that the bristles rotate in the mode of being attached to the connecting positions of the chain plates; compared with the operation of manually smearing the lubricating grease, the lubricating grease smearing device has the advantages that the lubricating grease smearing efficiency is improved, and meanwhile, the manual labor amount is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of conveying belts, and particularly relates to a chain mechanism based on liquid packaging material conveying. BACKGROUND

[0002] The chain conveying device is an industrial conveying device taking a chain as a core traction component, driving a bearing device (such as a chain plate, a hopper, a lifting appliance, etc.) or directly conveying materials through the circulating movement of the chain, so as to realize continuous and stable material conveying. It is widely used in logistics, food processing and other fields due to its advantages of solid structure, strong carrying capacity and adaptability to complex working conditions (high temperature, dust, heavy load) and the like. For example, the chain conveying device is used in the conveying process of some liquid packaging materials (beverages, canned foods and liquid raw materials and the like), and stable support force of the chain conveying device is used to realize stable conveying of the liquid packaging materials.

[0003] In the long-term use process of the existing chain conveying device, the connection of the chain conveying device becomes jammed due to lack of lubrication, which is not conducive to the stable operation of the chain conveying device. Therefore, it is necessary to regularly perform the lubrication operation during the use of the chain conveying device. Since the existing chain conveying device lacks a suitable lubricating device, manual greasing operation is required, and the connection points of the chain conveying device are generally more, which greatly increases the manual labor and also makes the greasing efficiency of the chain conveying device low.

[0004] Therefore, it is necessary to invent a chain mechanism based on liquid packaging material conveying to solve the above problems. SUMMARY

[0005] In view of the above problems, the application provides a chain mechanism based on liquid packaging material conveying to solve the problems in the background art.

[0006] To achieve the above purpose, the application provides the following technical scheme: a chain mechanism based on liquid packaging material conveying, comprising a mounting frame, a chain conveying belt is mounted on the inner side of the mounting frame, a driving gear for rotating the chain conveying belt is arranged on the inner side of the chain conveying belt, and a tensioning device for tightening the chain conveying belt is arranged on the inner side of the chain conveying belt, the tensioning device comprises a movable shaft, a tensioning wheel, an adjusting assembly and a lubricating assembly; The movable shaft is horizontally and vertically inserted between the front and rear sides of the mounting frame, the number of the tensioning wheels is two, both of the tensioning wheels are rotationally sleeved on the movable shaft, the number of the adjusting assemblies is two, both of the adjusting assemblies are mounted on both ends of the movable shaft, and are used to drive the movable shaft to move horizontally along the conveying direction of the chain conveying belt, and the lubricating assembly is located between the two tensioning wheels, and is used to lubricate the connection points of the chain conveying belt.

[0007] Further, the adjusting assembly comprises an adjusting rod and a fixing block, the adjusting rod is vertically connected to one end of the movable shaft, and the adjusting rod is horizontally arranged, the fixing block is threadedly sleeved on the adjusting rod, and the fixing block is fixedly connected to the mounting frame.

[0008] Further, the lubricating assembly comprises a storage box, electric heating sheets, an applying mechanism, a scraping mechanism and a pushing mechanism, the storage box is fixedly sleeved on the movable shaft, and the storage box is circular, the storage box is provided with a return hole at a position close to the top end, and the scraping mechanism is mounted in the return hole, the bottommost position of the storage box is provided with an oil outlet hole, the applying mechanism is mounted in the oil outlet hole, the pushing mechanism is located between the two tensioning wheels and used for driving the applying mechanism and the scraping mechanism to contact or separate from the connecting point of the chain conveyor belt, the number of the electric heating sheets is two, and the two electric heating sheets are fixedly connected to the inner wall of the arc surface of the storage box and are symmetrical about the oil outlet hole.

[0009] Further, the applying mechanism comprises a sealing roller, two fixing plates, a rotating shaft and a transmission roller, the sealing roller is horizontally arranged in the oil outlet hole, and the diameter of the sealing roller is matched with the opening width of the oil outlet hole, the two fixing plates are rotatably connected to two ends of the sealing roller respectively, and the two fixing plates are slidably arranged on the inner walls of the front and rear sides of the oil outlet hole respectively, the rotating shaft is horizontally and vertically rotatably inserted between the two fixing plates, and the rotating shaft is located at the bottom of the sealing roller, the transmission roller is fixedly sleeved at the middle position of the rotating shaft, and the transmission roller can always be in close contact with the sealing roller, and the bristles are uniformly and circularly distributed on the rotating shaft, and the length of the bristles is greater than the radius of the transmission roller.

[0010] Further, the scraping mechanism comprises an arc-shaped plate, a limiting plate and flexible scraping plates, the arc-shaped plate is located in the storage box, the arc-shaped plate is opposite to the return hole, the width of the arc-shaped plate is less than the opening width of the return hole, the number of the arc-shaped plates is two, the limiting plates are symmetrically arranged on the two sides of the arc-shaped plates, and the limiting plates are fixedly connected between the inner walls of the front and rear sides of the storage box, and the number of the flexible scraping plates is multiple, the multiple flexible scraping plates are uniformly distributed on the side of the arc-shaped plate close to the return hole, and the flexible scraping plates can extend out of the return hole.

[0011] Further, the dial mechanism comprises a rotating disc, a dial rod and a friction roller, the rotating disc is two in number, and is rotatably installed on the front and rear sides of the storage box, and the rotating disc is coaxial with the tensioning wheel, the diameter of the rotating disc is smaller than that of the tensioning wheel, the dial rod is vertically inserted between the front and rear sides of the arc-shaped plate, and the front and rear sides of the storage box are provided with strip-shaped limiting holes opposite to the two ends of the dial rod, the length direction of the limiting hole is parallel to the limiting plate, the two ends of the dial rod are inserted into the two limiting holes respectively, the rotating disc, the dial rod and the rotating shaft are provided with strip-shaped guide holes opposite to each other, the guide holes are not parallel to the limiting holes, and the dial rod and the rotating shaft are inserted into the opposite guide holes respectively, a plurality of strip-shaped mounting holes are arranged in a ring shape on the rotating disc, the mounting holes are located on the diameter of the rotating disc, the friction roller is rotatably installed in the mounting hole, and the friction roller is also located on the diameter of the rotating disc and can be in close contact with the storage box and the corresponding tensioning wheel.

[0012] Further, the chain conveyor belt is formed by a plurality of chain plates, and the number of the chain conveyor belt is not limited to one, and the hinged portions of the adjacent two chain plates protrude towards the inner side of the chain conveyor belt, the protruding portions are engaged with the driving gear, and the protruding portions are located between the two tensioning wheels.

[0013] Further, the transmission roller is symmetrically provided with arc-shaped baffles on both sides, and the front and rear sides of the baffle are fixedly connected with the two fixed plates.

[0014] Further, the storage box is provided with an oil supplementing pipe near the top, a sealing plug is arranged at the opening of the oil supplementing pipe, the opening of the backflow hole is provided with an annular protrusion matched in size, and the height of the annular protrusion is smaller than the height of the flexible scraper.

[0015] The technical effects and advantages of the present application are as follows: 1. The present application is provided with a smearing mechanism, so that after the chain conveyor belt runs for a period of time, the rotating disc can push the rotating shaft to keep the bristles on the surface of the rotating shaft in contact with the connecting portions of the chain plates through the guide holes during the reverse rotation of the chain conveyor belt, so that the bristles can evenly smear the lubricating grease on the connecting portions of the chain plates during the rotation of the bristles along the connecting portions of the chain plates, thereby automatically realizing the operation of smearing lubricating grease on the connecting portions of the chain plates, compared with the manual smearing operation of lubricating grease, the smearing efficiency of the lubricating grease is improved, and the labor intensity is reduced. 2. The present application is provided with a scraping mechanism, so that during the reverse rotation of the chain conveyor belt, a plurality of flexible scrapers can scrape along the connecting portions of the chain plates, so as to scrape off the excess lubricating grease from the connecting portions of the chain plates, and then the un-solidified lubricating grease scraped off can flow down along the surface of the flexible scraper under the action of gravity and finally flow back into the storage box, so as to avoid the waste of lubricating grease. 3、The present application is provided with a dialing mechanism, when the lubricating assembly completes the operation of smearing the chain conveying belt with lubricating grease, with the forward rotation of the driving motor, the tensioning wheel can drive the rotating disc to rotate through the friction roller, so that the two guide holes on the rotating disc can respectively push the dialing rod and the rotating shaft to move towards the direction of the center of the storage box, so as to respectively pull the flexible scraper and the brush to move towards the direction of the center of the storage box, so as to realize the operation of separating the flexible scraper and the brush from the chain plate connection, and further ensure that the chain conveying belt will not be affected by the brush and the flexible scraper during normal operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the present application; Figure 2 is the partial structure schematic diagram of the present application; Figure 3 is the three-dimensional schematic diagram of the driving gear and the chain plate in the present application; Figure 4 is the three-dimensional schematic diagram of the tensioning device and the chain plate in the present application; Figure 5 is the three-dimensional schematic diagram of the tensioning wheel and the lubricating assembly in the present application; Figure 6 is the three-dimensional schematic diagram of the lubricating assembly in the present application; Figure 7 is the three-dimensional schematic diagram of the storage box and the smearing mechanism in the present application; Figure 8 is the three-dimensional sectional view of the storage box in the present application.

[0017] In the figure: 1, mounting frame;2, driving gear;3, movable shaft;4, tensioning wheel;5, driving shaft;6, driving motor;7, adjusting rod;8, fixed block;9, storage box;10, electric heating sheet;11, sealing roller;12, fixed plate;13, rotating shaft;14, transmission roller;15, brush;16, arc plate;17, limiting plate;18, flexible scraper;19, rotating disc;20, dialing rod;21, friction roller;22, limiting hole;23, guide hole;24, chain plate;25, baffle;26, oil supplement pipe;27, sealing plug;28, annular protrusion. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely in combination with the embodiments.

[0019] The present application provides a kind of lubricating device for chain conveying belt, which includes mounting frame, driving gear, movable shaft, tensioning wheel, driving shaft, driving motor, adjusting rod, fixed block, storage box, electric heating sheet, sealing roller, fixed plate, rotating shaft, transmission roller, brush, arc plate, limiting plate, flexible scraper, rotating disc, dialing rod, friction roller, limiting hole, guide hole, chain plate, baffle, oil supplement pipe, sealing plug and annular protrusion. Figures 1 to 8The chain mechanism for conveying liquid packaging materials shown includes a mounting frame 1, a chain conveyor belt mounted inside the mounting frame 1, a drive gear 2 that drives the chain conveyor belt to rotate and a tensioning device that tensions it, the tensioning device including a movable shaft 3, a tensioning wheel 4, an adjusting component and a lubrication component, a drive shaft 5 that is fixedly inserted through the shaft of the drive gear 2, the two ends of the drive shaft 5 being rotatably inserted through the front and rear sides of the mounting frame 1 respectively, and a drive motor 6 being drivenly connected to the front end of the drive shaft 5, the chain conveyor belt being formed by multiple chain plates 24 hinged together, and the number of chain conveyor belts is not limited to one, the hinge of two adjacent chain plates 24 protruding inward towards the chain conveyor belt, the protruding part meshing with the drive gear 2, and the protruding part being located between two tensioning wheels 4; The movable shaft 3 is horizontally and vertically inserted between the front and rear sides of the mounting frame 1. There are two tension wheels 4, both of which are rotatably sleeved on the movable shaft 3. There are two adjustment components, which are respectively installed at both ends of the movable shaft 3 to drive the movable shaft 3 to move horizontally along the conveying direction of the chain conveyor belt. The lubrication component is located between the two tension wheels 4 and is used to lubricate the connection point of the chain conveyor belt. The adjustment component includes an adjustment rod 7 and a fixing block 8. The adjustment rod 7 is vertically rotatably connected to the corresponding end of the movable shaft 3 and is horizontally set. The fixing block 8 is threaded onto the adjustment rod 7 and is fixedly connected to the mounting frame 1. The lubrication assembly includes a storage box 9, electric heating elements 10, an application mechanism, an oil scraping mechanism, and a toggle mechanism. The storage box 9 is fixedly sleeved on the movable shaft 3 and is circular. A return hole is provided near the top of the storage box 9, and the oil scraping device is installed in the return hole. An oil outlet hole is provided at the bottom of the storage box 9, and the application mechanism is installed in the oil outlet hole. The toggle mechanism is located between two tensioning wheels 4 and is used to drive the application mechanism and the oil scraping mechanism to contact or separate from the connection point of the chain conveyor belt. There are two electric heating elements 10, and both electric heating elements 10 are fixedly connected to the inner wall of the arc surface of the storage box 9, and the two electric heating elements 10 are symmetrical about the oil outlet hole. Before use, the two adjusting rods 7 can be turned in sequence, so that the movable shaft 3 moves away from the drive gear 2 under the push of the adjusting rods 7. As the movable shaft 3 moves, the tensioning wheel 4 can gradually tighten the chain conveyor belt from the inside of the chain conveyor belt under the drive of the movable shaft 3 and the drive gear 2. When in use, as the drive motor 6 is started, the drive motor 6 can drive the drive gear 2 to rotate through the drive shaft 5. As the drive gear 2 rotates, the drive gear 2 can drive the entire chain conveyor belt to run in conjunction with the protrusion at the connection of the chain plate 24. During the operation, the coating mechanism and the scraping mechanism in the lubrication assembly can be kept separate from the connection of the chain plate 24, so as not to affect the operation of the chain conveyor belt. And after the chain conveyor belt runs for a period of time, the driving motor 6 can drive the driving gear 2 to rotate reversely, and with the reverse rotation of the driving gear 2, the chain conveyor belt can also be reversed, in the process, the poking mechanism can drive the smearing mechanism and the oil scraping mechanism to extend out of the oil outlet hole and the return hole and keep contact with the connecting part of the chain plate 24 under the action of the tensioning wheel 4, and then with the working of the electric heating sheet 10, the electric heating sheet 10 can heat the lubricating grease close to the inner wall of the bottom of the storage box 9 to have good fluidity, and then the melted lubricating grease can be smeared on the connecting part of the chain plate 24 under the action of the smearing mechanism, so that the operation of smearing lubricating grease on the chain conveyor belt is automatically realized, compared with the manual smearing operation of lubricating grease, the smearing efficiency of the lubricating grease is improved, and the labor amount is reduced. In addition, by arranging the oil scraping mechanism, after the oil smearing device smears the lubricating grease on the connecting part of the chain plate 24, the oil scraping mechanism can scrape the connecting part of the chain plate 24 smeared with the lubricating grease, so that the excess lubricating grease can flow back to the storage box 9 through the return hole under the scraping action of the oil scraping mechanism, avoiding the waste of lubricating grease.

[0020] As shown in Figures 4 to 8 The smearing mechanism comprises a sealing roller 11, two fixed plates 12, a rotating shaft 13, a transmission roller 14 and brush hairs 15, the sealing roller 11 is horizontally arranged in the oil outlet hole, the diameter of the sealing roller 11 matches the opening width of the oil outlet hole, the two fixed plates 12 are respectively rotationally connected at both ends of the sealing roller 11, and the two fixed plates 12 are respectively vertically slidably installed on the front and rear inner walls of the oil outlet hole, the rotating shaft 13 is horizontally and vertically rotationally inserted between the two fixed plates 12, and the rotating shaft 13 is located at the bottom of the sealing roller 11, the transmission roller 14 is fixedly sleeved at the middle position of the rotating shaft 13, and the transmission roller 14 can always be in contact with the sealing roller 11, and the brush hairs 15 are uniformly and annularly distributed on the rotating shaft 13, and the length of the brush hairs 15 is greater than the radius of the transmission roller 14; The dial mechanism comprises two rotating discs 19, a dial rod 20 and a friction roller 21. The two rotating discs 19 are respectively installed on the front and rear sides of the storage box 9 and coaxial with the tension pulley 4. The rotating discs 19 have a smaller diameter than the tension pulley 4. The dial rod 20 is vertically inserted between the front and rear sides of the arc-shaped plate 16. The front and rear sides of the storage box 9 are provided with strip-shaped limiting holes 22 opposite to the two ends of the dial rod 20. The limiting holes 22 are parallel to the limiting plate 17. The two ends of the dial rod 20 are respectively inserted into the two limiting holes 22. The rotating disc 19, the dial rod 20 and the rotating shaft 13 are respectively provided with strip-shaped guide holes 23 opposite to each other. The guide holes 23 are not parallel to the limiting holes 22. The dial rod 20 and the rotating shaft 13 are respectively inserted into the opposite guide holes 23. The rotating disc 19 is provided with a plurality of strip-shaped mounting holes arranged in a ring shape. The mounting holes are located on the diameter of the rotating disc 19. The friction roller 21 is rotatably installed in the mounting hole. The friction roller 21 is also located on the diameter of the rotating disc 19. The friction roller 21 can simultaneously adhere to the storage box 9 and the corresponding tension pulley 4. The oil scraping mechanism comprises the arc-shaped plate 16, the limiting plate 17 and the flexible scraper 18. The arc-shaped plate 16 is located inside the storage box 9 and opposite to the return flow hole. The width of the arc-shaped plate 16 is smaller than the opening width of the return flow hole. The arc-shaped plate 16 has two limiting plates 17 symmetrically arranged on the two sides of the arc-shaped plate 16. The limiting plate 17 is fixedly connected between the inner walls of the front and rear sides of the storage box 9. The flexible scraper 18 has a plurality of flexible scrapers 18 uniformly distributed on one side of the arc-shaped plate 16 close to the return flow hole. The flexible scraper 18 can extend out of the return flow hole. The storage box 9 is provided with an oil supplement pipe 26 close to the top. The oil supplement pipe 26 is provided with a sealing plug 27 at the opening. The return flow hole is provided with an annular protrusion 28 matched in size. The height of the annular protrusion 28 is smaller than the height of the flexible scraper 18. When the chain conveyor belt is used for a period of time, the chain conveyor belt can also be reversed with the reverse rotation of the driving gear 2 driven by the driving motor 6 through the driving shaft 5. With the reverse rotation of the chain conveyor belt, the tension pulley 4 can be reversely rotated under the friction force of the chain conveyor belt. With the reverse rotation of the tension pulley 4, the tension pulley 4 can drive the friction roller 21 closely attached thereto to rotate. With the rotation of the friction roller 21, the friction roller 21 can roll against the storage box 9 to drive the rotating disc 19 to rotate. With the rotation of the rotating disc 19, the guide holes 23 opposite to the dial rod 20 on the rotating disc 19 can push the dial rod 20 to drive the arc-shaped plate 16 and the flexible scraper 18 to move away from the center of the storage box 9 along the direction of the limiting hole 22. At the same time, the guide holes 23 opposite to the rotating shaft 13 on the rotating disc 19 can push the rotating shaft 13 to drive the sealing roller 11 and the bristles 15 to move away from the center of the storage box 9 under the limitation of the fixed plate 12. When the rotating shaft 13 and the push rod 20 move synchronously, when the rotating shaft 13 and the push rod 20 move to the maximum displacement along the corresponding guide holes 23 respectively, the bristles 15 on the rotating shaft 13 can be in close contact with the connection of the chain plate 24, and the flexible scraper 18 can also be in close contact with the connection of the chain plate 24, at this time, with the reverse rotation of the chain conveyor belt, the friction of the chain conveyor belt on the bristles 15 can drive the rotating shaft 13 to rotate, and with the rotation of the rotating shaft 13, the rotating shaft 13 can drive the sealing roller 11 to rotate through the transmission roller 14, and with the rotation of the sealing roller 11, the melted lubricating grease on the sealing roller 11 can be evenly wrapped on the sealing roller 11, and then with the bristles 15 brushing along the surface of the sealing roller 11, the melted lubricating grease adhering to the surface of the sealing roller 11 can be adhered to the bristles 15, so that in the process of the bristles 15 rotating along the connection of the chain plate 24, the bristles 15 can evenly apply the lubricating grease to the connection of the chain plate 24, thereby automatically realizing the operation of applying the lubricating grease to the connection of the chain plate 24, compared with the manual operation of applying the lubricating grease, the efficiency of applying the lubricating grease is improved, and the labor amount is reduced. In addition, in the process of the reverse rotation of the chain conveyor belt, the plurality of flexible scrapers 18 can scrape along the connection of the chain plate 24, so that the excess lubricating grease can be scraped off from the connection of the chain plate 24, and then the scraped lubricating grease which has not solidified can flow down along the surface of the flexible scraper 18 under the action of gravity and finally flow back into the storage box 9, so that the lubricating grease can be avoided from being wasted. When the lubricating assembly completes the operation of applying the lubricating grease to the chain conveyor belt, with the forward rotation of the driving motor 6, the chain conveyor belt can be driven by the driving gear 2 to rotate forward again, and with the forward rotation of the chain conveyor belt, the tensioning wheel 4 can drive the rotating disc 19 to rotate through the friction roller 21, so that the two guide holes 23 on the rotating disc 19 can respectively push the push rod 20 and the rotating shaft 13 to move towards the center of the storage box 9, and with the movement of the push rod 20 and the rotating shaft 13, the arc-shaped plate 16 and the rotating shaft 13 can respectively pull the flexible scraper 18 and the bristles 15 to move towards the center of the storage box 9, so as to realize the operation of separating the flexible scraper 18 and the bristles 15 from the connection of the chain plate 24, thereby ensuring that the chain conveyor belt will not be affected by the bristles 15 and the flexible scraper 18 in the normal operation process.

[0021] As shown in Figure 5 and Figure 8 The transmission roller 14 is symmetrically provided with arc-shaped baffles 25 on both sides, and the front and back sides of the baffle 25 are fixedly connected with the two fixed plates 12 respectively. By providing the baffle 25, in the process of the bristles 15 applying the lubricating grease to the connection of the chain plate 24, the baffle 25 can shield the bristles 15 from both sides, so as to avoid the lubricating grease adhering to the bristles 15 from splashing everywhere under the action of centrifugal force.

[0022] The above examples are only used to illustrate the technical solutions of the present application, but not to limit the present application.

Claims

1. A chain mechanism for conveying liquid packaged goods, comprising a mounting frame (1), characterized in that: The mounting frame (1) is equipped with a chain conveyor belt on its inner side. The chain conveyor belt is provided with a drive gear (2) that drives it to rotate and a tensioning device that tightens it. The tensioning device includes a movable shaft (3), a tensioning wheel (4), an adjustment component, and a lubrication component. The movable shaft (3) is horizontally and vertically inserted between the front and rear sides of the mounting frame (1). There are two tension wheels (4), both of which are rotatably sleeved on the movable shaft (3). There are two adjustment components, which are respectively installed at both ends of the movable shaft (3) to drive the movable shaft (3) to move horizontally along the conveying direction of the chain conveyor belt. The lubrication component is located between the two tension wheels (4) and is used to lubricate the connection point of the chain conveyor belt.

2. The chain mechanism for conveying liquid packaged goods according to claim 1, characterized in that: The adjustment assembly includes an adjustment rod (7) and a fixing block (8). The adjustment rod (7) is vertically rotatably connected to one end of the movable shaft (3), and the adjustment rod (7) is horizontally set. The fixing block (8) is threaded onto the adjustment rod (7), and the fixing block (8) is fixedly connected to the mounting bracket (1).

3. The chain mechanism for conveying liquid packaging materials according to claim 2, characterized in that: The lubrication assembly includes a storage box (9), an electric heating element (10), an application mechanism, an oil scraping mechanism, and a toggle mechanism. The storage box (9) is fixedly sleeved on the movable shaft (3) and is circular. A return hole is provided near the top of the storage box (9), and the oil scraping mechanism is installed in the return hole. An oil outlet hole is provided at the bottom of the storage box (9), and the application mechanism is installed in the oil outlet hole. The toggle mechanism is located between two tensioning wheels (4) and is used to drive the application mechanism and the oil scraping mechanism to contact or separate from the connection point of the chain conveyor belt. There are two electric heating elements (10), and both electric heating elements (10) are fixedly connected to the inner wall of the arc surface of the storage box (9), and the two electric heating elements (10) are symmetrical about the oil outlet hole.

4. The chain mechanism for conveying liquid packaged goods according to claim 3, characterized in that: The coating mechanism includes a sealing roller (11), a fixing plate (12), a rotating shaft (13), a transmission roller (14), and bristles (15). The sealing roller (11) is horizontally positioned in the oil outlet hole, and the diameter of the sealing roller (11) matches the opening width of the oil outlet hole. There are two fixing plates (12), which are rotatably connected to the two ends of the sealing roller (11) and are slidably mounted on the inner walls of the front and rear sides of the oil outlet hole in the vertical direction. The rotating shaft (13) is horizontally and vertically rotatably inserted between the two fixing plates (12) and is located at the bottom of the sealing roller (11). The transmission roller (14) is fixedly sleeved in the middle position of the rotating shaft (13) and can always keep in contact with the sealing roller (11). The bristles (15) are evenly distributed in a ring on the rotating shaft (13), and the length of the bristles (15) is greater than the radius of the transmission roller (14).

5. The chain mechanism for conveying liquid packaging materials according to claim 4, characterized in that: The oil scraping mechanism includes an arc plate (16), a limiting plate (17), and a flexible scraper (18). The arc plate (16) is located inside the storage box (9). The arc plate (16) is directly opposite the reflux hole, and the width of the arc plate (16) is smaller than the opening width of the reflux hole. There are two arc plates (16). The limiting plate (17) is symmetrically arranged on both sides of the arc plate (16) and is fixedly connected between the front and rear inner walls of the storage box (9). There are multiple flexible scrapers (18). Multiple flexible scrapers (18) are evenly distributed on the side of the arc plate (16) near the reflux hole, and the flexible scrapers (18) can extend out of the reflux hole.

6. The chain mechanism for conveying liquid packaging materials according to claim 5, characterized in that: The actuating mechanism includes a turntable (19), a lever (20), and a friction roller (21). There are two turntables (19), which are rotatably mounted on the front and rear sides of the storage box (9), respectively. The turntables (19) are coaxial with the tension wheel (4). The diameter of the turntables (19) is smaller than the diameter of the tension wheel (4). The lever (20) is vertically inserted between the front and rear sides of the arc plate (16). The front and rear sides of the storage box (9) and the positions directly opposite the two ends of the lever (20) are provided with strip-shaped limiting holes (22). The length direction of the limiting holes (22) is parallel to that of the limiting plate (17). The two ends of the lever (20) are respectively inserted through... In the two limiting holes (22), the turntable (19) and the lever (20) and the rotating shaft (13) are respectively provided with strip-shaped guide holes (23). The guide holes (23) are not parallel to the limiting holes (22), and the lever (20) and the rotating shaft (13) are respectively inserted into the opposite guide holes (23). The turntable (19) has a number of strip-shaped mounting holes distributed in a ring. The mounting holes are located on the diameter of the turntable (19). The friction roller (21) is rotatably mounted in the mounting hole. The friction roller (21) is also located on the diameter of the turntable (19), and the friction roller (21) can simultaneously keep in contact with the storage box (9) and the corresponding tensioning wheel (4).

7. The chain mechanism for conveying liquid packaging materials according to claim 6, characterized in that: The chain conveyor belt is made of multiple chain plates (24) hinged together, and the number of chain conveyor belts is not limited to one. The hinge of two adjacent chain plates (24) protrudes inward towards the chain conveyor belt. The protruding part meshes with the drive gear (2) and is located between two tensioning wheels (4).

8. The chain mechanism for conveying liquid packaging materials according to claim 7, characterized in that: The transmission roller (14) is symmetrically provided with arc-shaped baffles (25) on both sides, and the front and rear sides of the baffles (25) are fixedly connected to two fixed plates (12) respectively.

9. The chain mechanism for conveying liquid packaging materials according to claim 8, characterized in that: The storage box (9) is provided with an oil replenishment pipe (26) near the top, and a sealing plug (27) is provided at the opening of the oil replenishment pipe (26). The opening of the return hole is provided with an annular protrusion (28) that matches its size, and the height of the annular protrusion (28) is less than the height of the flexible scraper (18).

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