Film coating treatment device for plastic packaging

Abstract

The invention relates to the technical field of film coating treatment equipment, and discloses a film coating treatment device for plastic packaging, which comprises a processing table as a basic component of the whole device, and a top seat is arranged in the middle of the top end of the processing table and is used for assembling and bearing all treatment mechanisms and subordinate structural parts thereof; and the conveying belt is arranged on the middle front portion of the inner side of the top base and used for conveying and moving the plastic hollow plate in the treatment process. By adding and arranging the removing and shaping mechanism, when the removing and shaping mechanism is used, redundant glue extruded by negative pressure between the surface of a plate and a covering film can be removed and cleaned, so that the negative influence of residual redundant glue on the surface attaching effect of the plate is avoided, and tight and flat attaching between the covering film and the plate is ensured; and moreover, the covering film on the surface of the plate and the plate can be shaped in a drying and shaping manner, so that the combination of the covering film and the plate is more stable and durable, and the durability and the stability of the product are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of film coating processing equipment, in particular to a film coating processing device for plastic packaging. Background Art

[0002] Plastic hollow board is a new type of board made of modern chemical materials such as HDPE and HDPP. It is light, non-toxic, pollution-free, waterproof, shockproof, anti-aging, corrosion-resistant, and rich in color. The main application areas of plastic hollow board include packaging, logistics, construction and other industries. Due to its unique physical and chemical properties, plastic hollow board performs well in various application scenarios.

[0003] Plastic hollow board has the significant advantage of being relatively light in weight due to its unique hollow structure. This feature makes it easier to carry, greatly reducing labor costs and handling difficulties. It is also easy to store and can effectively save storage space. Based on these advantages, plastic hollow board is widely used in many fields, such as packaging boxes, transfer boxes, and product linings. In particular, it has been widely used in the field of electronic product packaging with high anti-static requirements.

[0004] However, in the actual use of plastic hollow boards, there are also some problems. The surface is often scratched or damaged due to various frictions. In order to protect the surface of the plastic hollow board, it is usually coated when it is used. However, since the surface of the plastic hollow board is not completely flat and there are some concave parts, it is difficult to achieve a good fitting effect in these concave areas during the coating treatment, and it is easy to have problems such as loose coating and bubbling, which in turn affects the actual effect of the coating protection and the appearance and quality of the product. Therefore, technical personnel in this field have proposed a coating treatment device for plastic packaging to solve the above-mentioned technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a film coating processing device for plastic packaging, which solves the problem that the film coating is not tight and bubbles may easily occur due to depressions on the surface of the plastic hollow plate.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a film coating processing device for plastic packaging, comprising The processing table, as the basic component of the whole device, has a top seat in the middle of the top, which is used to assemble and carry various processing mechanisms and their subordinate lower structural parts; The conveyor belt is arranged at the middle front part of the inner side of the top seat, and is used for conveying and moving the plastic hollow plate in the process; Two plate inlet and outlet ports are respectively opened on one side of the middle part of both ends of the top seat, and are used to feed the plastic hollow plates to be coated and discharge the plastic hollow plates after the coating process; A cleaning and drying mechanism is arranged near the edge of one side of the top seat, and is used for cleaning and drying the surface of the plastic hollow plate to be coated before coating; The glue spraying and film coating mechanism is arranged on one side of the top seat and is used for spraying glue and coating the surface of the plastic hollow plate after being processed by the cleaning and drying mechanism; The film plate laminating mechanism is arranged at the other side of the top seat and is used to perform laminating treatment on the plastic hollow plate after being treated by the glue spraying and laminating mechanism; The removing and shaping mechanism is arranged at the edge of one side of the top seat away from the cleaning and drying mechanism, and is used to remove excess glue on the surface of the plastic hollow board after the film board bonding mechanism has completed the processing and to perform film coating and shaping treatment on the surface of the board.

[0007] Preferably, the cleaning and drying mechanism includes a driving roller, which is rotatably connected to the middle front portion of one side of the top of the processing table near the edge, and the top of the driving roller is connected to the corresponding position of the inner wall of the top seat, a sponge cleaning roller is provided in the middle of the outer wall of the driving roller, and a driving motor is provided on one side of the middle front portion of the top of the top seat, the output end of the driving motor passes through the top seat and is connected to the top of the driving roller, two mounting seats are equidistantly fixedly connected to the middle front portions of both sides of the top seat, and a guide roller is rotatably connected to the middle of one adjacent side of the mounting seat.

[0008] Preferably, the cleaning and drying mechanism also includes a liquid storage tank, which is arranged on one side of the middle rear part of the top of the top seat, and a liquid injection nozzle is arranged on one side of the middle part of the top of the liquid storage tank, and the interior of the liquid injection nozzle is connected to the interior of the liquid storage tank, and a sealing cover is threadedly connected to the top of the liquid injection nozzle, and an absorbent cotton bottom plate is arranged on one side of the middle part of the bottom end of the interior of the liquid storage tank, and a plurality of absorbent cotton rods are equidistantly arranged in the middle part of the top of the absorbent cotton bottom plate, and a water guide rope is arranged in the middle part of the inner side of the absorbent cotton rod, and the bottom end of the water guide rope passes through the liquid storage tank and the top seat in sequence and contacts with one side of the top end of the sponge cleaning roller.

[0009] Preferably, the cleaning and drying mechanism also includes an installation box, which is arranged on one side of the middle part of the top end of the processing table, and a plurality of partitions are arranged equidistantly and staggered from back to front inside the installation box, and the plurality of partitions constitute a curved flow chamber, and a plurality of arc rods are arranged equidistantly inside the curved flow chamber, and heating wires are arranged on the arc rods, and the frontmost partition and the inner wall of the installation box constitute a temporary storage chamber, and a plurality of air outlet slots are equidistantly opened in the middle of the front side of the installation box, and the interior of the air outlet slots is connected with the interior of the temporary storage chamber, and a fan is arranged on one side of the middle and lower part of the rear end of the top seat, and the air outlet of the fan is connected with the interior of the curved flow chamber through a connecting pipe.

[0010] Preferably, the glue spraying and coating mechanism includes a glue sprayer, a glue sprayer is arranged at the middle front part of the top end of the processing table, a glue box is arranged at the middle rear part of the top end of the processing table, a feed pump is arranged at the middle part of the top end of the top seat, the feed inlet of the feed pump is connected with the inner bottom of the glue box through a connecting pipe, the feed outlet of the feed pump is connected with the feed inlet of the glue sprayer through a connecting pipe, a liquid level visual window is arranged on one side of the middle part of the rear end of the glue box, a feeding pipe is arranged at the middle upper part of the rear end of the glue box, and the end of the feeding pipe away from the glue box passes through the top seat and extends outward.

[0011] Preferably, the glue spray coating mechanism also includes a coating inlet, a coating inlet is opened in the middle front part of the top of the top seat, a triangular guide seat is fixedly connected to the inside of the coating inlet, a center mark is provided near the edge in the middle front part of the top of the top seat, both sides of the front end of the glue sprayer are fixedly connected to the mounting seat 2, the middle part of the front end of the mounting seat 2 is provided with a guide wheel, and the front end bottom of the glue sprayer is fixedly connected to an abutment seat.

[0012] Preferably, the film sheet laminating mechanism comprises an arc-shaped mounting rod, and the middle parts of both sides of the glue sprayer are fixedly connected with an arc-shaped mounting rod, two sponge cleaning rollers are arranged on the arc-shaped mounting rod on one side, and an elastic pressing roller is arranged on the arc-shaped mounting rod on the other side.

[0013] Preferably, the membrane bonding mechanism also includes a closing cover, a closing cover is slidably connected to one side of the middle part of the top end of the processing table, an annular sealing strip is arranged at the front end edge of the closing cover, a plurality of electric cylinders are equidistantly arranged on one side of the rear end of the top seat, and the rod bodies of the electric cylinders are respectively connected to the four corners of the closing cover, a negative pressure vacuum pump is arranged in the middle part of the rear side of the closing cover, and the negative pressure port of the negative pressure vacuum pump is connected with the interior of the closing cover through a connecting pipe, an electromagnetic pressure relief valve is arranged in the middle part of the top end of the closing cover, a sub-controller is arranged on one side of the middle part of the rear side of the top end of the top seat, and the sub-controller is electrically connected to the electric cylinder and the electromagnetic pressure relief valve.

[0014] Preferably, the removing and shaping mechanism includes a vertical mounting rod, which is rotatably connected to one side of the front middle portion of the top end of the processing table, and the top end of the vertical mounting rod is rotatably connected to a position corresponding to the inner wall of the top seat, a sponge absorption roller is provided in the middle of the outer wall of the vertical mounting rod, and a plate dryer is provided in the front middle portion of the side of the top end of the processing table away from the driving roller.

[0015] Preferably, electric control boxes are provided on both sides of the middle of the front end of the processing table, a plurality of mounting strip seats are equidistantly provided on the outer wall surface of the conveyor belt, and a plurality of vacuum suction cups are equidistantly provided in the middle of the mounting strip seats.

[0016] Working principle: When laminating the surface of the plastic hollow board, the staff will first insert the plastic hollow board to be laminated from the board inlet near the driving motor to the inside of the top seat. When the plastic hollow board is inserted from the board inlet, the surface of the plastic hollow board contacts the guide roller on the mounting seat. As the plastic hollow board is inserted, the guide roller also rotates synchronously to guide the plastic hollow board from the board inlet to the top seat. At the same time, one side of the plastic hollow board also contacts the vacuum suction cup on the mounting seat. At this time, the plastic hollow board is adsorbed and fixed by the vacuum suction cup, and the conveyor belt in the top seat is started. When the belt is started, it drives the plastic hollow plate on the vacuum suction cup to move synchronously; first, the cleaning and drying mechanism is started, and when the plastic hollow plate moves to the position of the sponge cleaning roller one, the plastic hollow plate contacts the surface of the sponge cleaning roller one, and the sponge cleaning roller one is subjected to the pressure of the plastic hollow plate to produce a deformation corresponding to the shape of the plate surface, at this time, the driving motor on the top seat is started, and the rotating shaft of the driving motor drives the driving roller on the processing table to rotate while rotating, and the driving roller drives the sponge cleaning roller one thereon to rotate synchronously while rotating, and the sponge cleaning roller one removes dust and impurities on the surface of the plastic hollow plate and the depressions on the surface while rotating. The cleaning process is carried out, and at the same time, the water in the liquid storage tank is absorbed by the absorbent cotton bottom plate and the absorbent cotton rod inside it, and then the water in the absorbent cotton bottom plate and the absorbent cotton rod that have absorbed the water drips onto the sponge cleaning roller one after slowly penetrating and guiding through the water guide rope at the bottom of the liquid storage tank, and is absorbed by the sponge cleaning roller one, thereby ensuring the continuous wettability of the sponge cleaning roller one during the rotation process, and also ensuring the continuous cleaning and adsorption effect of the sponge cleaning roller one during the cleaning process, and then the cleaned plastic hollow plate is transported by the conveyor belt to the position of the installation box, at which time the fan on the top seat is started, and the fan injects air into the interior of the installation box through the connecting pipe, The air entering the installation box slows down its moving speed and prolongs its residence time when it flows into the curved flow cavity, so that the air can be fully heated by the heating wire on the arc rod during the flow in the curved flow cavity, and then the heated high-temperature air flows into the temporary storage cavity in the installation box, and then as the high-temperature air continues to enter the temporary storage cavity, the high-temperature air in the temporary storage cavity is sprayed onto the surface of the cleaned plate through the air outlet slot on the installation box, so that the surface of the cleaned plate is dried by the high-temperature air, thereby completing the cleaning and drying of the surface of the plastic hollow plate;Then the glue spraying and coating mechanism is started. After the plastic hollow board is processed by the cleaning and drying mechanism, the conveyor belt drives the dried plastic hollow board thereon to the position of the glue sprayer during rotation. The plastic hollow board on the conveyor belt contacts the sponge cleaning roller 2 on the right arc-shaped mounting rod during movement, and as the plastic hollow board is conveyed and moved, the sponge cleaning roller 2 is also driven to rotate by friction. While frictionally rotating, the residual moisture on the surface of the dried plastic hollow board is cleaned before gluing, thereby ensuring the adhesion effect of the glue. Then the feeding pump on the top seat is started. The feeding pump transports the glue in the glue box through the connecting pipe and injects it into the glue sprayer, and then the glue is evenly sprayed on the cleaned and dried surface of the plastic hollow board through the glue sprayer, thereby completing the plastic Glue spraying treatment on the surface of the hollow board: after the surface of the plastic hollow board is sprayed with glue, the staff inserts the coating material to be used through the coating inlet on the top seat, and adjusts the position of the coating material through the center mark on the top seat. After the coating material enters the coating inlet, it is guided to the position where it fits the plastic hollow board through the triangular guide seat inside it. Then, as the staff moves the coating material downward, the two sides of the coating material are guided and rolled by the guide wheels in the two mounting seats on both sides of the glue sprayer. After the coating material moves down to abut against the abutment seat on the glue sprayer, the coating material stops moving. At this time, the coating material on the surface of the plastic hollow board has completed the preliminary bonding through the glue sprayed thereon, thereby completing the glue spraying and coating treatment of the plastic hollow board;After that, the film board bonding mechanism is started, and the plastic hollow board after the glue spraying and laminating treatment is moved to the position of the closed cover through the conveyor belt in the top seat, and in the process of the movement of the plastic hollow board, when the coating on the surface of the plastic hollow board moves through the elastic coating roller on the left arc-shaped mounting rod, the elastic coating roller contacts its surface and produces corresponding deformation, and as the plastic hollow board continues to move, the elastic coating roller also rotates synchronously, and at the same time, through the rolling of the elastic coating roller, the coating material on the plastic hollow board is completely bonded to the surface of the board, and at the same time, the excess glue between the surface of the board and the coating material is squeezed out at the edge of the coating material, and then when the plastic hollow board after the rolling treatment reaches the position of the closed cover, the staff sends a control instruction to the sub-controller on the top seat through the control device, and then the sub-controller controls the electric cylinder rod body in the top seat after receiving the control signal. The rod on the electric cylinder is pushed out, and at the same time, the closing cover on the processing table is driven to slide toward the surface of the plate for bonding. Then, the negative pressure vacuum pump on the closing cover is started and the inside of the closing cover is pumped into a vacuum negative pressure state through the cooperation of the annular sealing strip on the closing cover. When the inside of the closing cover forms a vacuum negative pressure, the external atmospheric pressure is greater than the pressure inside the closing cover. Under the action of this pressure difference, the coating on the surface of the plate will be subjected to a force of squeezing toward the surface of the plastic hollow plate, so that the coating material that is poorly bonded due to the depression on the surface of the plate is squeezed and filled into the depression on the surface of the plate by this force, which can not only reduce the residual air between the surface of the plate and the coating material, thereby improving the bonding degree between the coating material and the concave part of the plate, but also can alleviate the problems of loose coating or blistering caused by excessive glue, so as to complete the bonding process of the plastic hollow plate and the coating material;Finally, the shaping mechanism is started. After the plastic hollow board has been processed by the film-sheet laminating mechanism, the conveyor belt drives the processed plastic hollow board to move. During the movement of the plastic hollow board, the surface of the plastic hollow board after the film coating contacts and rubs with the sponge absorption roller on the vertical mounting rod to drive it to rotate synchronously. In the process of friction between the sponge absorption roller and the film coating material on the surface of the plastic hollow board, the sponge absorption roller can not only clean up the excess glue squeezed out of the board surface due to negative pressure, but also roll the film on the board surface again through the sponge absorption roller, so that The surface of the plate is completely in contact with the coating material, and then the plastic hollow plate after being treated by the sponge absorption roller is moved to the position of the plate dryer again as the sponge absorption roller rotates, and then the plastic hollow plate after coating is dried and shaped by the plate dryer, so as to complete the removal of excess glue on the surface of the plastic hollow plate and the drying and shaping after coating. Finally, after drying and shaping by the plate dryer, the plastic hollow plate after coating is discharged through the plate inlet and outlet with the conveyor belt, and collected by the staff, so as to complete the coating processing of the plastic hollow plate. ;

[0017] The present invention provides a film coating processing device for plastic packaging, which has the following beneficial effects: 1. The present invention cleans and dries the surface of the plastic hollow board before coating it by adding and setting a cleaning and drying mechanism. On the one hand, dust, oil stains, impurities, etc. on the surface of the hollow board can be removed by cleaning, thereby preventing impurities from forming an isolation layer between the coating and the surface of the board, resulting in a decrease in the adhesion between the coating and the board, and the occurrence of the coating falling off. On the other hand, drying can remove moisture on the surface, preventing residual moisture from affecting the laminating effect of the coating, so that the coating can adhere tightly to the surface of the plastic hollow board, thereby improving the adhesion and stability of the coating.

[0018] 2. The present invention adds and sets a cleaning and drying mechanism, and cleans the surface of the plate, which can not only avoid the problems of bubbles, wrinkles and the like during the coating process, thereby affecting the flatness and aesthetics of the coating, but also avoids the chemical reaction between moisture and certain impurities on the surface of the plastic hollow plate, thereby preventing the surface of the plate from corroding or aging, thereby affecting its service life, by drying the surface of the cleaned plastic hollow plate.

[0019] 3. The present invention adds and sets a glue spraying and coating mechanism. When in use, the mechanism can not only cooperate closely with the triangular guide seat through the center mark to provide precise guidance for the staff, greatly improve the accuracy of inserting the coating material, and effectively avoid material waste and time loss due to operational errors, but also through the cooperation of the guide wheel, the direction of the coating material can be precisely controlled, so that it can be evenly and accurately adhered to the surface of the plastic hollow board, ensuring the high quality of the coating, greatly improving the appearance and durability of the product, and providing a strong guarantee for the efficient coating operation of the plastic hollow board.

[0020] 4. The present invention promotes the bonding of the plate surface and the coating material by means of negative pressure and rolling in turn by adding and setting a film-plate bonding mechanism. On the one hand, the mechanism uses negative pressure and pressure difference to make the coating tightly fit on the surface of the plastic hollow plate, especially for the depressions or unevenness on the plate surface, which can be effectively filled to reduce air residue, avoid problems such as bubbles and hollows, and greatly improve the tightness of the bonding. Moreover, the negative pressure environment can make the coating material better conform to the complex shape of the plate to ensure good bonding in every corner. On the other hand, the bonding effect between the plate surface and the coating can be further enhanced by rolling, and the tiny gap that may exist between the coating and the plastic hollow plate can be eliminated, so that the distance between the molecules of the two is closer, the intermolecular force is enhanced, and the adhesion firmness is improved. At the same time, rolling can make the coating smoother, improve the appearance, and make the tension of the coating evenly distributed on the entire plate surface, thereby improving the stability and durability of the product.

[0021] 5. The present invention adds and sets a removing shaping mechanism. When the mechanism is used, it can not only remove and clean the excess glue squeezed out between the surface of the plate and the coating due to negative pressure, thereby avoiding the negative impact of excess glue residue on the surface bonding effect of the plate, ensuring the tight and smooth bonding between the coating and the plate, and greatly improving the appearance quality of the product, but also can shape the coating on the surface of the plate and the plate by drying and shaping, so that the combination of the two is more stable and lasting, enhancing the durability and stability of the product, and providing a more complete quality assurance for the coating process of the plastic hollow plate.

[0022] 6. When coating the plastic hollow board, the present invention, with its sophisticated automated design, greatly reduces the dependence on manpower and significantly cuts the manpower investment cost. At the same time, the invention introduces an automatic and continuous coating processing mode, so that the plastic hollow board can be coated uninterruptedly, avoiding the time waste caused by frequent pauses and switches in traditional processing. In this way, the processing efficiency of the coating on the surface of the plastic hollow board is significantly improved, providing a solid guarantee for large-scale production, helping enterprises to reduce production costs while increasing production capacity and enhancing market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 It is a schematic diagram of the rear structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the internal structure of the top seat of the present invention; Figure 4 It is a schematic diagram of the internal structure of the top seat of the present invention; Figure 5 It is a cross-sectional schematic diagram of the internal structure of the liquid storage tank of the present invention; Figure 6 It is a schematic cross-sectional view of the internal structure of the installation box of the present invention; Figure 7 It is a schematic diagram of the local structure of the glue sprayer of the present invention; Figure 8 It is a schematic diagram of the local structure of the sealing cover of the present invention.

[0024] Among them, 1. Processing table; 2. Top seat; 3. Sub-controller; 4. Laminating inlet; 5. Feeding pump; 6. Liquid storage tank; 7. Driving motor; 8. Mounting seat 1; 9. Guide roller; 10. Plate inlet and outlet; 11. Electric control box; 12. Center mark; 13. Triangular guide seat; 14. Liquid level viewing window; 15. Feeding pipe; 16. Fan; 17. Plate dryer; 18. Vertical mounting rod; 19. Closing cover; 20. Arc mounting rod; 21. Glue sprayer; 22. Mounting box; 23. Driving roller; 24. Sponge cleaning roller 1; 25. Transmission Conveyor belt; 26. Mounting bar seat; 27. Vacuum suction cup; 28. Sponge absorption roller; 29. ​​Annular sealing strip; 30. Elastic pressure roller; 31. Mounting seat 2; 32. Sponge cleaning roller 2; 33. Air outlet slot; 34. Rubber box; 35. Liquid injection nozzle; 36. Water-absorbing cotton bottom plate; 37. Water guide rope; 38. Water-absorbing cotton rod; 39. Heating wire; 40. Arc rod; 41. Partition; 42. Temporary storage chamber; 43. Curved flow chamber; 44. Abutment seat; 45. Guide wheel; 46. Negative pressure vacuum pump; 47. Electric cylinder; 48. Electromagnetic pressure relief valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Please refer to the attached Figure 1 - Attachment Figure 2The embodiment of the present invention provides a film coating processing device for plastic packaging, including a processing table 1 as a basic component of the overall device, a top seat 2 is arranged in the middle of the top, which is used to assemble and carry various processing mechanisms and their lower structural parts; a conveyor belt 25 is arranged in the middle front part of the inner side of the top seat 2, which is used to transport and move the plastic hollow plates in the processing process; two plate inlet and outlet ports 10 are respectively opened on one side of the middle part of the two ends of the top seat 2, which are used to feed the plastic hollow plates to be coated and discharge the plastic hollow plates after the coating process; Electric control boxes 11 are arranged on both sides of the middle of the front end of the processing table 1, a plurality of mounting seats 26 are arranged equidistantly on the outer wall surface of the conveyor belt 25, and a plurality of vacuum suction cups 27 are arranged equidistantly in the middle of the mounting seats 26.

[0027] When the plastic hollow board is inserted from the board inlet and outlet 10, the surface of the plastic hollow board contacts the guide roller 9 on the mounting seat 8, and as the plastic hollow board is inserted, the guide roller 9 also rotates synchronously to guide and drive the plastic hollow board from the board inlet and outlet 10 into the top seat 2, and at the same time, one side of the plastic hollow board also contacts the vacuum suction cup 27 on the mounting seat 26. At this time, the plastic hollow board is adsorbed and fixed by the vacuum suction cup 27, and at the same time, the conveyor belt 25 in the top seat 2 is started, and the conveyor belt 25 drives the plastic hollow board on the vacuum suction cup 27 to move synchronously while starting.

[0028] Please refer to the attached Figure 3 - Attachment Figure 5 , a cleaning and drying mechanism, which is arranged near the edge of one side of the top seat 2, and is used for cleaning and drying the surface of the plastic hollow plate to be coated before coating; The cleaning and drying mechanism includes a driving roller 23, which is rotatably connected to the middle front part of one side of the top of the processing table 1 near the edge, and the top of the driving roller 23 is connected to the corresponding position of the inner wall of the top seat 2, and a sponge cleaning roller 24 is arranged in the middle of the outer wall of the driving roller 23, and a driving motor 7 is arranged on one side of the middle front part of the top of the top seat 2. The output end of the driving motor 7 passes through the top seat 2 and is connected to the top of the driving roller 23. Two mounting seats 8 are equidistantly fixedly connected to the middle front parts of both sides of the top seat 2, and guide rollers 9 are rotatably connected to the middle of the adjacent side of the mounting seat 8.

[0029] When the cleaning and drying mechanism is started, when the plastic hollow plate moves to the position of the sponge cleaning roller 24, the plastic hollow plate contacts the surface of the sponge cleaning roller 24, and the sponge cleaning roller 24 is subjected to the pressure of the plastic hollow plate to produce a deformation corresponding to the shape of the plate surface. At this time, the driving motor 7 on the top seat 2 is started, and the rotating shaft of the driving motor 7 drives the driving roller 23 on the processing table 1 to rotate while rotating. The driving roller 23 drives the sponge cleaning roller 24 thereon to rotate synchronously while rotating. The sponge cleaning roller 24 removes dust and impurities on the surface of the plastic hollow plate and the depressions on its surface while rotating.

[0030] Please refer to the attached Figure 5 The cleaning and drying mechanism also includes a liquid storage tank 6, a liquid storage tank 6 is arranged on one side of the middle and rear part of the top of the top seat 2, a liquid injection nozzle 35 is arranged on one side of the middle part of the top of the liquid storage tank 6, and the interior of the liquid injection nozzle 35 is connected to the interior of the liquid storage tank 6, and a sealing cover is threadedly connected to the top of the liquid injection nozzle 35, and an absorbent cotton bottom plate 36 is arranged on one side of the middle part of the bottom end of the interior of the liquid storage tank 6, and a plurality of absorbent cotton rods 38 are equidistantly arranged in the middle part of the top of the absorbent cotton bottom plate 36, and a water guide rope 37 is arranged in the middle part of the inner side of the absorbent cotton rod 38, and the bottom end of the water guide rope 37 passes through the liquid storage tank 6 and the top seat 2 in sequence and contacts with one side of the top end of the sponge cleaning roller 24.

[0031] At the same time, the water in the liquid storage tank 6 is absorbed by the absorbent cotton bottom plate 36 and the absorbent cotton rod 38 therein, and then the water in the absorbent cotton bottom plate 36 and the absorbent cotton rod 38 that have absorbed the water drips onto the sponge cleaning roller 24 after slow penetration and guidance by the water guide rope 37 at the bottom of the liquid storage tank 6, and is absorbed by the sponge cleaning roller 24, thereby ensuring the continuous wettability of the sponge cleaning roller 24 during the rotation process, and also ensuring the continuous cleaning and adsorption effect of the sponge cleaning roller 24 during the cleaning process.

[0032] Please refer to the attached Figure 6 The cleaning and drying mechanism also includes an installation box 22. The installation box 22 is arranged on one side of the middle part of the top of the processing table 1. A plurality of partitions 41 are arranged equidistantly from back to front inside the installation box 22. The plurality of partitions 41 constitute a curved flow chamber 43. A plurality of arc rods 40 are arranged equidistantly inside the curved flow chamber 43. A heating wire 39 is arranged on each of the arc rods 40. The frontmost partition 41 and the inner wall of the installation box 22 constitute a temporary storage chamber 42. A plurality of air outlet slots 33 are equidistantly opened in the middle of the front side of the installation box 22, and the interior of the air outlet slots 33 is connected with the interior of the temporary storage chamber 42. A fan 16 is arranged on one side of the middle and lower part of the rear end of the top seat 2, and the air outlet of the fan 16 is connected with the interior of the curved flow chamber 43 through a connecting pipe.

[0033] Then, the cleaned plastic hollow board is transported by the conveyor belt 25 to the position of the installation box 22. At this time, the fan 16 on the top seat 2 is started, and the fan 16 injects air into the interior of the installation box 22 through the connecting pipe. When the air enters the installation box 22 and flows into the curved flow cavity 43, the movement speed is slowed down and the residence time therein is prolonged, so that the air can be fully heated by the heating wire 39 on the arc rod 40 during the flow in the curved flow cavity 43.

[0034] After that, the high-temperature air after being heated flows into the temporary storage chamber 42 in the installation box 22. Then, as the high-temperature air continues to enter the temporary storage chamber 42, the high-temperature air in the temporary storage chamber 42 is sprayed onto the surface of the cleaned plate through the air outlet slots 33 on the installation box 22, thereby drying the surface of the cleaned plate by the high-temperature air, thereby completing the cleaning and drying process of the surface of the plastic hollow plate.

[0035] Please refer to the attached Figure 3 - Attachment Figure 4 and attached Figure 7 , a glue spraying and film coating mechanism, which is arranged on one side of the top seat 2, and is used for spraying glue and coating the surface of the plastic hollow plate after being processed by the cleaning and drying mechanism; The glue spraying and coating mechanism includes a glue sprayer 21, a glue sprayer 21 is arranged at the middle front part of the top of the processing table 1, a glue box 34 is arranged at the middle rear part of the top of the processing table 1, a feed pump 5 is arranged at the middle part of the top of the top seat 2, the feed inlet of the feed pump 5 is connected with the inner bottom of the glue box 34 through a connecting pipe, the feed outlet of the feed pump 5 is connected with the feed inlet of the glue sprayer 21 through a connecting pipe, a liquid level visual window 14 is arranged on one side of the middle part of the rear end of the glue box 34, a feeding pipe 15 is arranged at the middle upper part of the rear end of the glue box 34, and the end of the feeding pipe 15 away from the glue box 34 passes through the top seat 2 and extends outward.

[0036] When the glue spraying and coating mechanism is started, after the plastic hollow board is processed by the cleaning and drying mechanism, the conveyor belt 25 drives the dried plastic hollow board thereon to move to the position of the glue sprayer 21 during rotation. The plastic hollow board on the conveyor belt 25 contacts the sponge cleaning roller 23 on the right arc-shaped mounting rod 20 during movement, and as the plastic hollow board is conveyed and moved, the sponge cleaning roller 23 is also driven to rotate by friction. While frictionally rotating, the sponge cleaning roller 23 cleans the residual moisture on the surface of the dried plastic hollow board before gluing, thereby ensuring the adhesion effect of the glue, and then the feeding pump 5 on the top seat 2 is started, and the feeding pump 5 conveys the glue in the glue box 34 through the connecting pipe and injects it into the glue sprayer 21, and then the glue is evenly sprayed on the surface of the cleaned and dried plastic hollow board through the glue sprayer 21, thereby completing the glue spraying treatment on the surface of the plastic hollow board.

[0037] The glue spray coating mechanism also includes a coating inlet 4, a coating inlet 4 is opened in the middle front part of the top of the top seat 2, a triangular guide seat 13 is fixedly connected inside the coating inlet 4, a center mark 12 is provided near the edge of the middle front part of the top of the top seat 2, both sides of the front end of the glue sprayer 21 are fixedly connected with a mounting seat 2 31, a guide wheel 45 is provided in the middle part of the front end of the mounting seat 2 31, and an abutment seat 44 is fixedly connected to the bottom of the front end of the glue sprayer 21.

[0038] After the surface of the plastic hollow board is sprayed with glue, the staff inserts the coating material to be used through the coating inlet 4 on the top seat 2, and adjusts the position of the coating material through the center mark 12 on the top seat 2. Then, after the coating material enters the coating inlet 4, it is guided to the position where it fits the plastic hollow board through the triangular guide seat 13 therein. Then, as the staff moves the coating material downward, the two sides of the coating material are guided and rolled by the guide wheels 45 in the mounting seats 31 on both sides of the glue sprayer 21. After the coating material moves down to abut against the abutment seat 44 on the glue sprayer 21, the coating material stops moving. At this time, the coating material on the surface of the plastic hollow board has completed the preliminary bonding through the glue sprayed thereon, thereby completing the glue spraying and coating treatment of the plastic hollow board.

[0039] Please refer to the attached Figure 3 - Attachment Figure 4 and attached Figure 8 , a film-plate laminating mechanism, which is arranged at the other side of the top seat 2, and is used for laminating the plastic hollow plate after being processed by the glue spraying and laminating mechanism; The film sheet laminating mechanism includes an arc-shaped mounting rod 20, and the middle parts of both sides of the glue sprayer 21 are fixedly connected with the arc-shaped mounting rod 20. A sponge cleaning roller 22 is arranged on one arc-shaped mounting rod 20, and an elastic pressing roller 30 is arranged on the other arc-shaped mounting rod 20.

[0040] When the film-sheet laminating mechanism is started, the plastic hollow sheet after the glue spraying and laminating treatment is moved to the position of the closing cover 19 through the conveyor belt 25 in the top seat 2, and in the process of the movement of the plastic hollow sheet, when the laminating film on the surface of the plastic hollow sheet moves through the elastic pressing roller 30 on the left arc-shaped mounting rod 20, the elastic pressing roller 30 contacts its surface and produces corresponding deformation, and as the plastic hollow sheet continues to move, the elastic pressing roller 30 also rotates synchronously, and at the same time, through the rolling pressure of the elastic pressing roller 30, the laminating material on the plastic hollow sheet is completely laminated to the surface of the sheet, and at the same time, the excess glue between the surface of the sheet and the laminating material is squeezed out at the edge of the laminating material.

[0041] The membrane bonding mechanism also includes a closing cover 19, which is slidably connected to the middle side of the top of the processing table 1, and an annular sealing strip 29 is arranged at the front end edge of the closing cover 19. A plurality of electric cylinders 47 are equidistantly arranged on one side of the rear end of the top seat 2, and the rods of the electric cylinders 47 are respectively connected to the four corners of the closing cover 19, and a negative pressure vacuum pump 46 is arranged in the middle of the rear side of the closing cover 19, and the negative pressure port of the negative pressure vacuum pump 46 is connected to the interior of the closing cover 19 through a connecting pipe, and an electromagnetic pressure relief valve 48 is arranged in the middle of the top of the closing cover 19, and a sub-controller 3 is arranged on one side of the middle of the rear side of the top of the top seat 2, and the sub-controller 3 is electrically connected to the electric cylinder 47 and the electromagnetic pressure relief valve 48.

[0042] Then, when the plastic hollow board after roller pressing reaches the position of the closing cover 19, the staff sends a control instruction to the sub-controller 3 on the top seat 2 through the control device, and then the sub-controller 3 controls the rod body of the electric cylinder 47 in the top seat 2 to push out after receiving the control signal. While the rod body on the electric cylinder 47 is pushed out, it drives the closing cover 19 on the processing table 1 to slide toward the surface of the plate for fitting. After that, the negative pressure vacuum pump 46 on the closing cover 19 is started and the interior of the closing cover 19 is evacuated into a vacuum negative pressure state through the cooperation of the annular sealing strip 29 on the closing cover 19.

[0043] After vacuum negative pressure is formed inside the sealing cover 19, the external atmospheric pressure is greater than the pressure inside the sealing cover 19. Under the action of this pressure difference, the coating on the surface of the plate will be subjected to a force squeezing toward the surface of the plastic hollow plate. Through this force, the coating material that does not fit well on the plate surface due to the depression is squeezed and filled into the depression on the plate surface. This can not only reduce the residual air between the plate surface and the coating material, thereby improving the degree of fit between the coating material and the depressed part of the plate, but also alleviate the problems of loose coating or blistering caused by excessive glue. After the negative pressure treatment of the coating on the plate surface is completed, the staff controls the electromagnetic pressure relief valve 48 to relieve pressure through the control device, thereby releasing the negative pressure adsorption state avoided by the sealing cover 19 and the plate, thereby facilitating the subsequent processing of the plate, thereby completing the bonding treatment of the plastic hollow plate and the coating material.

[0044] Please refer to the attached Figure 3 - Attachment Figure 4 , removing and shaping mechanism, which is arranged at the edge of one side of the top seat 2 away from the cleaning and drying mechanism, is used to remove excess glue on the surface of the plastic hollow board after the film board bonding mechanism is completed and to perform film coating and shaping treatment on the surface of the board.

[0045] The removing and shaping mechanism includes a vertical mounting rod 18, and the vertical mounting rod 18 is rotatably connected to one side of the middle front part of the top end of the processing table 1, and the top end of the vertical mounting rod 18 is rotatably connected to the position corresponding to the inner wall of the top seat 2, and a sponge absorption roller 28 is arranged in the middle of the outer wall of the vertical mounting rod 18, and a plate dryer 17 is arranged in the middle front part of one side of the top end of the processing table 1 away from the driving roller 23.

[0046] When the shaping removal mechanism is started, after the plastic hollow board has been processed by the film-board laminating mechanism, the conveyor belt 25 drives the processed plastic hollow board to move. During the movement of the plastic hollow board, the surface of the plastic hollow board after the film coating comes into contact with the sponge absorption roller 28 on the vertical mounting rod 18 during the movement and drives it to rotate synchronously by friction. In the process of friction between the sponge absorption roller 28 and the film coating material on the surface of the plastic hollow board, not only can the sponge absorption roller 28 clean up the excess glue squeezed out of the board surface due to negative pressure, but also the sponge absorption roller 28 can roll the film on the board surface again, so that the board surface and the film coating material are completely bonded.

[0047] Then, the plastic hollow board treated by the sponge absorption roller 28 is moved again to the position of the plate dryer 17 as the sponge absorption roller 28 rotates, and then the plastic hollow board after the coating treatment is dried and shaped by the plate dryer 17, thereby completing the removal of excess glue on the surface of the plastic hollow board and the drying and shaping treatment after coating.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film coating processing device for plastic packaging, characterized in that: include The processing table (1) is a basic component of the overall device, and a top seat (2) is arranged in the middle of the top end thereof, which is used to assemble and carry various processing mechanisms and their subordinate structural parts; A conveyor belt (25) is arranged at the middle front portion of the inner side of the top seat (2) and is used for conveying and moving the plastic hollow plate during processing; Two plate inlet and outlet ports (10) are respectively provided on one side of the middle part of both ends of the top seat (2) and are used for feeding in the plastic hollow plates to be coated and for discharging the plastic hollow plates after the coating process; A cleaning and drying mechanism, which is arranged near the edge of one side of the interior of the top seat (2) and is used for cleaning and drying the surface of the plastic hollow plate to be coated before coating; A glue spraying and film coating mechanism, which is arranged on one side of the interior of the top seat (2) and is used to spray glue and film coat the surface of the plastic hollow plate after being processed by the cleaning and drying mechanism; A film-plate laminating mechanism, which is arranged on the other side of the interior of the top seat (2) and is used to perform laminating processing on the plastic hollow plate after being processed by the glue spraying and laminating mechanism; The removing and shaping mechanism is arranged at an edge of one side of the top seat (2) away from the cleaning and drying mechanism, and is used to remove excess glue from the surface of the plastic hollow plate after the film plate laminating mechanism has finished processing, and to perform film laminating and shaping processing on the surface of the plate.

2. A film coating processing device for plastic packaging according to claim 1, characterized in that: The cleaning and drying mechanism comprises a driving roller (23), the driving roller (23) is rotatably connected to the middle front part of one side of the top end of the processing table (1) near the edge, and the top end of the driving roller (23) is connected to the corresponding position of the inner wall of the top seat (2), a sponge cleaning roller (24) is arranged in the middle part of the outer wall of the driving roller (23), a driving motor (7) is arranged on one side of the middle front part of the top end of the top seat (2), the output end of the driving motor (7) passes through the top seat (2) and is connected to the top end of the driving roller (23), two mounting seats (8) are equidistantly fixedly connected to the middle front parts of both sides of the top seat (2), and the middle part of the adjacent side of the mounting seat (8) is rotatably connected to a guide roller (9).

3. A film coating processing device for plastic packaging according to claim 2, characterized in that: The cleaning and drying mechanism also includes a liquid storage tank (6), a liquid storage tank (6) is arranged on one side of the middle rear part of the top of the top seat (2), a liquid injection nozzle (35) is arranged on one side of the middle part of the top of the liquid storage tank (6), and the interior of the liquid injection nozzle (35) is connected to the interior of the liquid storage tank (6), and the top of the liquid injection nozzle (35) is threadedly connected to a sealing cover, and an absorbent cotton bottom plate (36) is arranged on one side of the middle part of the bottom of the interior of the liquid storage tank (6), and a plurality of absorbent cotton rods (38) are equidistantly arranged in the middle of the top of the absorbent cotton bottom plate (36), and a water guide rope (37) is arranged in the middle of the inner side of each absorbent cotton rod (38), and the bottom end of the water guide rope (37) passes through the liquid storage tank (6) and the top seat (2) in sequence and contacts with one side of the top end of the sponge cleaning roller (24).

4. A film coating processing device for plastic packaging according to claim 3, characterized in that: The cleaning and drying mechanism further comprises an installation box (22), wherein the installation box (22) is arranged on one side of the middle portion of the top end of the processing table (1), wherein a plurality of partitions (41) are arranged equidistantly from the back to the front inside the installation box (22), wherein the plurality of partitions (41) form a curved flow chamber (43), wherein a plurality of arc-shaped rods (40) are arranged equidistantly inside the curved flow chamber (43), wherein each of the arc-shaped rods (40) is provided with a heating wire (39), wherein the frontmost partition (41) and the inner wall of the installation box (22) form a temporary storage chamber (42), wherein a plurality of air outlet slots (33) are arranged equidistantly in the middle portion of the front side of the installation box (22), wherein the interior of the air outlet slots (33) is connected to the interior of the temporary storage chamber (42), and a fan (16) is arranged on one side of the middle and lower portion of the rear end of the top seat (2), wherein the air outlet of the fan (16) is connected to the interior of the curved flow chamber (43) via a connecting pipe.

5. The film coating processing device for plastic packaging according to claim 1, characterized in that: The glue spraying and coating mechanism comprises a glue sprayer (21), a glue sprayer (21) is arranged at the middle front part of the top of the processing table (1), a glue box (34) is arranged at the middle rear part of the top of the processing table (1), a feed pump (5) is arranged at the middle part of the top of the top seat (2), an inlet of the feed pump (5) is connected to the inner bottom of the glue box (34) through a connecting pipe, and an outlet of the feed pump (5) is connected to the inlet of the glue sprayer (21) through a connecting pipe, a liquid level visual window (14) is arranged on one side of the middle part of the rear end of the glue box (34), and a feeding pipe (15) is arranged at the middle upper part of the rear end of the glue box (34), and the end of the feeding pipe (15) away from the glue box (34) passes through the top seat (2) and extends outward.

6. A film coating processing device for plastic packaging according to claim 5, characterized in that: The glue spray coating mechanism further comprises a coating inlet (4), a coating inlet (4) is provided at the middle front portion of the top end of the top seat (2), a triangular guide seat (13) is fixedly connected to the inside of the coating inlet (4), a center mark (12) is provided at the middle front portion of the top end of the top seat (2) near the edge, both sides of the front end of the glue sprayer (21) are fixedly connected to the second mounting seat (31), the middle portion of the front end of the second mounting seat (31) is provided with a guide wheel (45), and the bottom of the front end of the glue sprayer (21) is fixedly connected to an abutment seat (44).

7. A film coating processing device for plastic packaging according to claim 6, characterized in that: The film sheet laminating mechanism comprises an arc-shaped mounting rod (20), the middle parts of both sides of the glue sprayer (21) are fixedly connected to the arc-shaped mounting rod (20), one side of the arc-shaped mounting rod (20) is provided with a second sponge cleaning roller (32), and the other side of the arc-shaped mounting rod (20) is provided with an elastic pressing roller (30).

8. The film coating processing device for plastic packaging according to claim 7, characterized in that: The membrane laminating mechanism also includes a closed cover (19), the closed cover (19) is slidably connected to one side of the middle part of the top of the processing table (1), and an annular sealing strip (29) is arranged at the front edge of the closed cover (19). A plurality of electric cylinders (47) are equidistantly arranged on one side of the rear end of the top seat (2), and the rods of the electric cylinders (47) are respectively connected to the four corners of the closed cover (19). A negative pressure vacuum pump (46) is arranged in the middle of the rear side of the closed cover (19), and the negative pressure port of the negative pressure vacuum pump (46) is connected to the inside of the closed cover (19) through a connecting pipe. An electromagnetic pressure relief valve (48) is arranged in the middle of the top of the closed cover (19), and a sub-controller (3) is arranged on one side of the middle part of the rear side of the top of the top seat (2), and the sub-controller (3) is electrically connected to the electric cylinder (47) and the electromagnetic pressure relief valve (48).

9. The film coating processing device for plastic packaging according to claim 1, characterized in that: The removing and shaping mechanism comprises a vertical mounting rod (18), one side of the middle front portion of the top end of the processing table (1) is rotatably connected to the vertical mounting rod (18), and the top end of the vertical mounting rod (18) is rotatably connected to a position corresponding to the inner wall of the top seat (2), a sponge absorption roller (28) is arranged in the middle of the outer wall of the vertical mounting rod (18), and a plate-type dryer (17) is arranged in the middle front portion of a side of the top end of the processing table (1) away from the driving roller (23).

10. The film coating processing device for plastic packaging according to claim 1, characterized in that: Electric control boxes (11) are arranged on both sides of the middle of the front end of the processing table (1), a plurality of mounting strip seats (26) are arranged at equal intervals on the outer wall surface of the conveyor belt (25), and a plurality of vacuum suction cups (27) are arranged at equal intervals in the middle of the mounting strip seats (26).

Images