Plastic woven bag film coating machine
By introducing a balancing mechanism and a horizontal movement component into the plastic woven bag coating machine, the problem of uneven coating on uneven ground was solved, achieving uniform coating and stable equipment operation, thus improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU KUNTAI PACKAGING CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-31
AI Technical Summary
When existing plastic woven bag coating machines are used on uneven ground, the coating surface is uneven, which leads to a decrease in coating quality and increases the instability of equipment operation and safety risks.
Employing a balancing mechanism and horizontal movement components, including a lifting assembly, a shock-absorbing assembly, a scraper assembly, and a paint placement assembly, the machine's balance is adjusted via threaded rods and limit blocks. Vibration is reduced by combining shock-absorbing cylinders and springs. Precise linear motion is achieved using a gear and rack mechanism. The multi-discharge port design and drying assembly ensure coating uniformity and efficiency.
Achieving uniform coating on uneven surfaces improves coating quality, reduces material waste, extends equipment life, lowers safety risks, and enhances work efficiency and operational safety.
Smart Images
Figure CN224574025U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of woven bag production equipment technology, and in particular to a plastic woven bag coating machine. Background Technology
[0002] A plastic woven bag coating machine is a mechanical device specifically designed to coat the surface of plastic woven bags with one or more layers of film. This machine is typically used to improve the strength, water resistance, abrasion resistance, and appearance of woven bags. Materials that can be coated by the coating machine include polyethylene, polypropylene, and ethylene-vinyl acetate copolymer. The working principle of a plastic woven bag coating machine generally includes five steps: feeding, preheating, coating, cooling, and winding. This machine can improve production efficiency, ensure product quality, and adjust the coating thickness and material according to different needs.
[0003] Currently, a Chinese utility model patent application published on January 16, 2024, with publication number CN 220387000U, discloses a coating machine, including a coating table and an adjustment assembly. A C-shaped adjustment frame is fixed to the center of the top side of the coating table. An installation plate is slidably mounted on the inner wall of the adjustment frame, and a scraper roller is provided at the bottom of the installation plate. The adjustment assembly includes an extension plate fixed to the top of the installation plate. At least two T-shaped installation shafts are fixed to the center of both sides of the outer wall of the extension plate. An adjustment plate is rotatably mounted on the outer wall of the installation shafts. The adjustment plate is inclined, with one end penetrating the top of the adjustment frame. A rectangular moving block is fixed to the outer wall of the end of the adjustment plate penetrating the adjustment frame. A rotating shaft is rotatably mounted on the top of the adjustment frame. By adjusting the height of the scraper roller, the thickness that the scraper roller can scrape can be better adapted to the required thickness of the object being coated, resulting in higher coating quality and facilitating coating processes of different thicknesses.
[0004] In related technologies, plastic woven bag coating machines cannot guarantee the flatness of the entire machine due to uneven terrain in different coating sites. This may lead to uneven film coverage during the coating process, reducing the coating quality of the coated objects. At the same time, machine imbalance may cause unstable equipment operation and increase the safety risks to operators.
[0005] Therefore, it is necessary to provide a plastic woven bag coating machine to solve the above problems. Utility Model Content
[0006] This application provides a plastic woven bag coating machine to improve the technical problem in related technologies where uneven terrain leads to uneven overall coating machine and thus uneven coating surface.
[0007] This application provides a plastic woven bag coating machine, including a coating machine platform, a balancing mechanism, a horizontal moving component, a paint placement component, and a scraper assembly. The horizontal moving component is disposed on the coating machine platform, the scraper assembly is disposed on the horizontal moving component, and the paint placement component is disposed on the scraper assembly. The balancing mechanism includes a lifting component, which includes a limiting block, a threaded rod, a fixing block, and a connecting seat. The fixing block is disposed on the coating machine platform, the threaded rod is disposed on the fixing block, and the connecting seat has a threaded hole. The connecting seat is threadedly connected to the threaded rod through the threaded hole. A limiting hole is provided in the connecting seat, and the limiting block is disposed on the end of the threaded rod away from the fixing block through the limiting hole.
[0008] The technical solutions described above in this application embodiment have at least the following technical effects: When using the plastic woven bag coating machine on relatively uneven ground, the user places the connecting seat on the ground and adjusts the length of the threaded rod inside the connecting seat according to different ground heights. The limiting block can restrict the threaded rod from being pulled out of the connecting seat, thereby improving the work efficiency of the workers, improving the machine's balance, maintaining stable equipment operation, and reducing the safety risks to the operators.
[0009] The plastic woven bag coating machine provided in this application embodiment can easily coat plastic woven bags evenly on uneven ground by using the lifting component in the balancing mechanism, thereby improving the coating quality of the coated objects and ensuring the overall flatness of the plastic woven bag coating machine.
[0010] In some embodiments, the balancing mechanism further includes a shock-absorbing assembly, which includes a shock-absorbing spring and a shock-absorbing cylinder. The shock-absorbing cylinder is disposed in a limiting hole, one end of the shock-absorbing cylinder abuts against a connecting seat, and the other end of the shock-absorbing cylinder abuts against a limiting block. The shock-absorbing spring is sleeved on the shock-absorbing cylinder, one end of the shock-absorbing spring abuts against a connecting seat, and the other end of the shock-absorbing spring abuts against a limiting block.
[0011] In some embodiments, the horizontal moving assembly includes a first gear, a rack, a slide rail, a sliding block, a first motor, and a gantry frame. The slide rail and the rack are both mounted on the coating machine platform. The sliding block is slidably connected to the slide rail. The gantry frame is mounted on the sliding block. The first motor is mounted on the sliding block. The first gear is keyed to the output shaft of the first motor. The first gear meshes with the rack for transmission.
[0012] In some embodiments, the scraper assembly includes a connecting plate, a lifting cylinder, and a scraper. The connecting plate is mounted on a gantry frame and has a connecting hole. The lifting cylinder is mounted on the connecting plate through the connecting hole, and the scraper is mounted on the output shaft of the lifting cylinder.
[0013] In some embodiments, the paint placement assembly includes a paint placement box, an observation window, a discharge port, and a feed cover. A square through hole is provided on the connecting plate, and the paint placement box is disposed on the connecting plate through the square through hole. The observation window is disposed on the paint placement box, the discharge port is disposed on the paint placement box, the paint placement box has a feed port, and the feed cover is disposed on the paint placement box through the feed port.
[0014] In some embodiments, the connecting plate is further provided with a drying assembly, which includes a second motor, a second gear, a third gear, a transmission rod, and a drying lamp. The second motor is disposed on the connecting plate, the second gear is disposed on the output shaft of the second motor, the third gear is disposed on the connecting plate, and the second gear and the third gear mesh and transmit power. The third gear has a threaded hole, and the transmission rod is threadedly connected to the third gear through the threaded hole. The drying lamp is disposed on the end of the transmission rod away from the third gear.
[0015] In some embodiments, a liquid level gauge is provided on the coating machine platform. Attached Figure Description
[0016] Figure 1 A three-dimensional structural diagram of the plastic woven bag coating machine provided in the embodiments of this application. Figure 1 ; Figure 2 A three-dimensional structural diagram of the plastic woven bag coating machine provided in the embodiments of this application. Figure 2 ; Figure 3 A three-dimensional structural diagram of the plastic woven bag coating machine provided in the embodiments of this application. Figure 3 ; Figure 4 A cross-sectional structural schematic diagram of the balancing mechanism provided in the embodiments of this application; The following are the labeling elements in the figure: 1. Coating machine; 2. Liquid level indicator; 3. Balancing mechanism; 31. Lifting assembly; 311. Limit block; 312. Threaded rod; 313. Fixing block; 314. Connecting seat; 32. Shock absorption assembly; 321. Shock absorption spring; 322. Shock absorption cylinder; 4. Paint placement assembly; 41. Paint placement box; 42. Observation window; 43. Discharge port; 44. Feed cover; 5. Scraper assembly; 51. Connecting plate; 52. Lifting cylinder; 53. Scraper; 6. Horizontal movement assembly; 61. First gear; 62. Rack; 63. Slide rail; 64. Sliding block; 65. First motor; 66. Gantry frame; 7. Drying assembly; 71. Second motor; 72. Second gear; 73. Third gear; 74. Transmission rod; 75. Drying lamp. Detailed Implementation
[0017] Based on this, in order to improve the technical problem in the related technology that the uneven terrain causes the overall coating machine to be uneven, resulting in an uneven coating surface, the embodiments of this application provide the following solution.
[0018] Please refer to the following: Figures 1 to 4 This application provides a plastic woven bag coating machine, which includes a coating machine platform 1, a balancing mechanism 3, a horizontal moving component 6, a paint placement component 4, and a scraper component 5. The horizontal moving component 6 is disposed on the coating machine platform 1, the scraper component 5 is disposed on the horizontal moving component 6, the paint placement component 4 is disposed on the scraper component 5, and the balancing mechanism 3 is disposed on the coating machine platform 1.
[0019] In some embodiments, please refer to the following: Figures 1 to 4 The balancing mechanism 3 includes a lifting assembly 31, which includes a limiting block 311, a threaded rod 312, a fixing block 313, and a connecting seat 314. The fixing block 313 is mounted on the coating machine 1, the threaded rod 312 is mounted on the fixing block 313, and the connecting seat 314 has a threaded hole. The connecting seat 314 is threadedly connected to the threaded rod 312 through the threaded hole. A limiting hole is provided inside the connecting seat 314, and the limiting block 311 is mounted on the end of the threaded rod 312 away from the fixing block 313 through the limiting hole. Mechanism 3 also includes a shock-absorbing component 32, which includes a shock-absorbing spring 321 and a shock-absorbing cylinder 322. The shock-absorbing cylinder 322 is disposed in a limiting hole. One end of the shock-absorbing cylinder 322 abuts against the connecting seat 314, and the other end of the shock-absorbing cylinder 322 abuts against the limiting block 311. The shock-absorbing spring 321 is sleeved on the shock-absorbing cylinder 322. One end of the shock-absorbing spring 321 abuts against the connecting seat 314, and the other end of the shock-absorbing spring 321 abuts against the limiting block 311. A liquid level gauge 2 is provided on the coating machine 1.
[0020] With this setup, when using the plastic woven bag coating machine on relatively uneven ground, the user places the connecting seat 314 on the ground and adjusts the length of the threaded rod 312 within the connecting seat 314 according to different ground heights. The limiting block 311 can prevent the threaded rod 312 from being pulled out of the connecting seat 314. Simultaneously, when the coating machine starts working, vibrations may occur. The damping spring 321 within the connecting seat 314 reduces these vibrations, while the damping cylinder 322 reduces the probability of deformation of the damping spring 321. By maintaining the coating machine level, this ensures... Uniform coating thickness avoids uneven coating caused by equipment tilting, thus improving coating quality. Uniform coating reduces material waste caused by uneven coating, improving material utilization. Reduced vibration reduces wear on equipment components, extends equipment life, and reduces the frequency of maintenance and component replacement. Balanced equipment is more stable during operation, reducing the risk of accidents caused by equipment vibration or tilting, improving operational safety. A stable working environment improves operator comfort, reduces time wasted on equipment adjustments, and thus improves overall work efficiency.
[0021] In some embodiments, please refer to the following: Figures 1 to 3 The horizontal moving assembly 6 includes a first gear 61, a rack 62, a slide rail 63, a sliding block 64, a first motor 65, and a gantry frame 66. The slide rail 63 and rack 62 are both mounted on the coating machine base 1. The sliding block 64 is slidably connected to the slide rail 63. The gantry frame 66 is mounted on the sliding block 64. The first motor 65 is mounted on the sliding block 64. The first gear 61 is keyed to the output shaft of the first motor 65, and the first gear 61 meshes with the rack 62 for transmission. The scraper assembly 5 includes a connecting plate 51, a lifting cylinder 52, and a scraper 53. The connecting plate 51 is mounted on the gantry frame 66 and has a connecting hole. The lifting cylinder 52 is mounted on the connecting plate 51 through the connecting hole, and the scraper 53 is mounted on the output shaft of the lifting cylinder 52.
[0022] In this configuration, the first motor 65 drives the sliding block 64 to move along the length of the slide rail 63 via the meshing of the first gear 61 and rack 62. The sliding block 64 drives the gantry 66 to move along the length of the slide rail 63, thereby driving the connecting plate 51 to move along the length of the slide rail 63. The lifting cylinder 52 drives the scraper 53 to move up and down in the vertical direction, facilitating the scraper 53 to coat the material. The gear and rack mechanism 62 can provide precise linear motion, which is crucial for coating applications that require precise control of the scraper 53's position. The gear and rack mechanism 62 can withstand large loads, which is especially important when handling viscous or thick coating materials. The gear and rack mechanism 62 can provide smooth motion, reducing vibration and jump of the scraper 53 during movement, which helps to achieve a uniform coating effect. The gear and rack mechanism 62 can efficiently convert rotary motion into linear motion with relatively low energy loss. The gear and rack 62 are standardized mechanical parts, easy to purchase and maintain. If there is wear or damage, the gear or rack 62 can be replaced individually without replacing the entire mechanism.
[0023] In some embodiments, please refer to the following: Figures 2 to 3 The paint placement assembly 4 includes a paint placement box 41, an observation window 42, a discharge port 43, and a feed cover 44. A square through hole is provided on the connecting plate 51. The paint placement box 41 is mounted on the connecting plate 51 through the square through hole. The observation window 42 is mounted on the paint placement box 41. The discharge port 43 is mounted on the paint placement box 41. A feed port is provided on the paint placement box 41. The feed cover 44 is mounted on the paint placement box 41 through the feed port.
[0024] With this setup, when the user needs to add paint, they simply open the feed cover 44 on the paint placement box 41, add paint, and observe the feeding progress through the observation window 42. When the paint placement box 41 starts working via the connecting plate 51, the discharge port 43 opens, discharging paint evenly. Multiple discharge ports 43 can simultaneously supply paint to different coating areas, reducing the waiting time for single discharge port 43 supply, thereby improving overall coating efficiency. Even dispensing ensures a more uniform distribution of paint on the workpiece surface, avoiding coating quality problems such as color difference and uneven thickness caused by uneven paint distribution. By precisely controlling the paint flow rate of each discharge port 43, waste caused by over-coating can be reduced, as well as rework required due to uneven paint distribution. The design of multiple discharge ports 43 increases the flexibility of the coating system, enabling the system to quickly adapt to changes in production plans, such as changing product lines or adjusting production batches. By rationally allocating paint to each discharge port 43, paint resources can be utilized more efficiently, reducing resource waste caused by uneven paint mixing or expired paint.
[0025] In some embodiments, please refer to the following: Figure 3 The connecting plate 51 is also provided with a drying assembly 7, which includes a second motor 71, a second gear 72, a third gear 73, a transmission rod 74, and a drying lamp 75. The second motor 71 is mounted on the connecting plate 51, the second gear 72 is mounted on the output shaft of the second motor 71, and the third gear 73 is mounted on the connecting plate 51. The second gear 72 and the third gear 73 mesh and transmit power. The third gear 73 has a threaded hole, and the transmission rod 74 is threadedly connected to the third gear 73 through the threaded hole. The drying lamp 75 is mounted on the end of the transmission rod 74 away from the third gear 73.
[0026] With this configuration, the second motor 71 drives the second gear 72 to rotate, and the second gear 72 meshes with the third gear 73 for transmission. The rotation of the third gear 73 drives the transmission rod 74 to move up or down through the screw thread, thereby driving the drying lamp 75 to move up or down. The drying equipment can provide the necessary heat to accelerate the drying process of the coating, shorten the coating cycle, and improve production efficiency. By controlling the drying temperature and drying time, it can ensure that the coating dries evenly and avoid defects caused by uneven drying, such as blistering, cracking, or peeling. Proper drying can enhance the physical and chemical properties of the coating, such as hardness, abrasion resistance, chemical resistance, and weather resistance. The drying equipment can effectively remove solvents and other volatile substances from the coating, reducing pollution and coating defects, such as sagging or orange peel. The drying equipment can adjust the drying parameters to adapt to different types and thicknesses of coating materials, meeting diverse production needs.
[0027] The implementation principle of a plastic woven bag coating machine according to this application embodiment is as follows: When using the plastic woven bag coating machine on a relatively uneven surface, the user places the connecting seat 314 on the ground and adjusts the length of the threaded rod 312 within the connecting seat 314 according to different ground heights. The limiting block 311 can restrict the threaded rod 312 from being pulled out of the connecting seat 314. When the user needs to add paint, they open the feed cover 44 on the paint placement box 41, add paint, and observe the feeding progress through the observation window 42. The first motor 65 drives the sliding block 64 to move along the length direction of the slide rail 63 through the meshing of the first gear 61 and the rack 62. 64 drives the gantry frame 66 to move along the length of the slide rail 63, thereby driving the connecting plate 51 to move along the length of the slide rail 63. The lifting cylinder 52 drives the scraper 53 to move up and down in the vertical direction. When the paint placement box 41 starts working through the connecting plate 51, the discharge port 43 opens and the paint is evenly released, making it easier for the scraper 53 to coat the material. At the same time, the second motor 71 drives the second gear 72 to rotate. The second gear 72 meshes with the third gear 73. The rotation of the third gear 73 drives the transmission rod 74 to move up or down through the screw rotation. Thus, the transmission rod 74 drives the drying lamp 75 to move up or down to dry the coated surface.
[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A plastic woven bag film coating machine characterized by: The system includes a coating machine (1), a balancing mechanism (3), a horizontal moving assembly (6), a paint placement assembly (4), and a scraper assembly (5). The horizontal moving assembly (6) is mounted on the coating machine (1), the scraper assembly (5) is mounted on the horizontal moving assembly (6), and the paint placement assembly (4) is mounted on the scraper assembly (5). The balancing mechanism (3) includes a lifting assembly (31), which includes a limit block (311), a threaded rod (312), and a fixing element. The fixed block (313) and the connecting seat (314) are provided. The fixed block (313) is set on the coating machine (1). The threaded rod (312) is set on the fixed block (313). The connecting seat (314) has a threaded hole. The connecting seat (314) is threadedly connected to the threaded rod (312) through the threaded hole. The connecting seat (314) has a limit hole. The limit block (311) is set on the end of the threaded rod (312) away from the fixed block (313) through the limit hole.
2. The plastic woven bag coating machine according to claim 1, characterized in that: The balancing mechanism (3) further includes a shock-absorbing component (32), which includes a shock-absorbing spring (321) and a shock-absorbing cylinder (322). The shock-absorbing cylinder (322) is disposed in a limiting hole. One end of the shock-absorbing cylinder (322) abuts against the connecting seat (314), and the other end of the shock-absorbing cylinder (322) abuts against the limiting block (311). The shock-absorbing spring (321) is sleeved on the shock-absorbing cylinder (322). One end of the shock-absorbing spring (321) abuts against the connecting seat (314), and the other end of the shock-absorbing spring (321) abuts against the limiting block (311).
3. A plastic woven bag coating machine according to claim 2, characterized in that: The horizontal moving component (6) includes a first gear (61), a rack (62), a slide rail (63), a sliding block (64), a first motor (65), and a gantry (66). The slide rail (63) and the rack (62) are both mounted on the coating machine (1). The sliding block (64) is slidably connected to the slide rail (63). The gantry (66) is mounted on the sliding block (64). The first motor (65) is mounted on the sliding block (64). The first gear (61) is keyed to the output shaft of the first motor (65). The first gear (61) meshes with the rack (62) for transmission.
4. A plastic woven bag coating machine according to claim 3, characterized in that: The scraper assembly (5) includes a connecting plate (51), a lifting cylinder (52), and a scraper (53). The connecting plate (51) is mounted on the gantry frame (66) and has a connecting hole. The lifting cylinder (52) is mounted on the connecting plate (51) through the connecting hole, and the scraper (53) is mounted on the output shaft of the lifting cylinder (52).
5. A plastic woven bag coating machine according to claim 4, characterized in that: The paint placement assembly (4) includes a paint placement box (41), an observation window (42), a discharge port (43), and a feed cover (44). A square through hole is provided on the connecting plate (51). The paint placement box (41) is set on the connecting plate (51) through the square through hole. The observation window (42) is set on the paint placement box (41). The discharge port (43) is set on the paint placement box (41). A feed port is provided on the paint placement box (41). The feed cover (44) is set on the paint placement box (41) through the feed port.
6. A plastic woven bag coating machine according to claim 5, characterized in that: The connecting plate (51) is also provided with a drying assembly (7), which includes a second motor (71), a second gear (72), a third gear (73), a transmission rod (74), and a drying lamp (75). The second motor (71) is provided on the connecting plate (51), the second gear (72) is provided on the output shaft of the second motor (71), the third gear (73) is provided on the connecting plate (51), the second gear (72) and the third gear (73) mesh and drive each other, the third gear (73) has a threaded hole, the transmission rod (74) is threadedly connected to the third gear (73) through the threaded hole, and the drying lamp (75) is provided on the end of the transmission rod (74) away from the third gear (73).
7. A plastic woven bag coating machine according to claim 6, characterized in that: The coating machine (1) is equipped with a liquid level gauge (2).