Winding type vacuum coating equipment for packaging film

Abstract

The utility model discloses winding type vacuum coating equipment for packaging films, which relates to the technical field of packaging film processing equipment and comprises a vacuum box, a winding component, a vacuum coating machine body and a cooling mechanism are fixedly mounted on the lower surface of an inner cavity of the vacuum box, and the vacuum coating machine body is positioned on the left side of the cooling mechanism. And a film coating assembly is fixedly mounted on the upper surface of an inner cavity of the vacuum box and located on the left side of the vacuum film coating machine body. According to the winding type vacuum coating equipment for the packaging film, the coating roller is pushed to move up and down through cooperation of the fourth motor, the gear, the toothed plate, the guide rod and the sleeve, the distance between the coating roller and the rubber roller can be adjusted, the toothed plate is pushed to move by one tooth when the gear rotates by a circle, and each tooth moves by a fixed distance; quantitative adjustment is achieved, the consistency of parameters is guaranteed, the processing requirements of packaging films with different thicknesses are met, and the universality of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging film processing equipment, in particular to a winding type vacuum coating equipment for packaging film. Background Art

[0002] Coating involves forming a material layer ranging from a few nanometers to several microns on a substrate. Vacuum coating machines typically use a spin coating method, whereby various adhesives are dripped onto the material and evenly applied to the surface, completing the coating process. Roll-to-roll vacuum coating machines, on the other hand, wind the material onto a roll, unrolling it through the rotation of the rollers, coating it during the unrolling process. This roll-to-roll vacuum coating equipment is primarily used to manufacture packaging films such as anti-counterfeiting films and hot stamping films, often used on tobacco casings to protect product quality and extend shelf life.

[0003] Chinese patent document CN220804144U discloses a roll-to-roll vacuum coating. Through the cooperation of the coating assembly, working rollers, positioning rings, working motors, and cover doors, the staff can open the cover door and place the raw materials to be coated on the three rollers, and close the cover door and start the working motor. The material will be dragged and unfolded at the same time. At this time, the coating assembly can coat the material. Through the cooperation of the auxiliary motor, active gear, rotating rod, auxiliary gear, support ring, cooperative gear, slide groove, slider, and rack, the auxiliary motor will drive the active gear to rotate when it starts, and then drive the auxiliary gear to rotate through gear meshing, so that the rotating rod rotates. Due to the existence of the support ring, the rotating rod will not fall off. The rotation of the rotating rod will drive the cooperative gear to rotate. Under the action of the rack, the slider will slide along the slide groove to achieve partial blocking of the required coating material, thereby completing the coating work of a specific shape.

[0004] The existing technology has the following problems:

[0005] Existing vacuum coating equipment cannot adapt to the coating processing of substrates of different thicknesses in actual use and has limitations. Before the substrate is rolled up and unfolded, there is no relevant mechanism to clamp the substrate, which makes the substrate easily shifted during the production process. Utility Model Content

[0006] The utility model provides a roll-to-roll vacuum coating device for packaging films, so as to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A roll-to-roll vacuum coating equipment for packaging film comprises a vacuum box, wherein a winding assembly, a vacuum coating machine body and a cooling mechanism are fixedly mounted on the lower surface of the inner cavity of the vacuum box, and the vacuum coating machine body is located on the left side of the cooling mechanism; a coating assembly is fixedly mounted on the upper surface of the inner cavity of the vacuum box, and the coating assembly is located on the left side of the vacuum coating machine body; an exhaust pump is fixedly mounted on the left side of the vacuum box, an exhaust pipe extending to the left side of the inner cavity of the vacuum box is fixedly mounted on the output end of the exhaust pump, and a box door is hinged on the front side of the vacuum box.

[0009] Preferably, the coating assembly includes a bracket three, the upper surface of the bracket three is fixedly installed with the upper surface of the inner cavity of the vacuum box, a motor four is fixedly installed on the rear side of the bracket three, the opposite side of the bracket three is rotatably connected with a gear, the output end of the motor four passes through the bracket three and is fixedly installed with the rear end of the gear, a tooth plate is meshed with the left side of the gear, a storage box is fixedly installed on the left side of the tooth plate, a coating rod is rotatably connected on the opposite side of the bottom of the storage box, a motor two is fixedly installed on the bottom of the rear side of the storage box, and the output end of the motor two passes through the storage box and is fixedly installed with the rear end of the coating rod, a filling pipe is fixedly installed on the left side of the storage box, and rubber sealing rings are fixedly installed on both sides of the discharge port at the bottom of the storage box.

[0010] Preferably, two sleeves are fixedly mounted on the upper surface of the inner cavity of the vacuum box, the inner cavity of the sleeve is slidably connected to a guide rod, and the lower surface of the guide rod is fixedly mounted to the upper surface of the storage box.

[0011] Preferably, a rotating shaft 1 is rotatably connected to the opposite side of the inner cavity of the storage box, a motor 1 is fixedly installed on the rear side of the storage box, and motor 1 is located on the upper side of motor 2, the output end of motor 1 passes through the storage box and is fixedly installed at the rear end of rotating shaft 1, and a number of agitators are fixedly installed on the outer side of rotating shaft 1.

[0012] Preferably, a scraper is fixedly installed on the left side of the lower surface of the inner cavity of the storage box.

[0013] Preferably, the winding assembly includes two brackets one, the lower surfaces of the two brackets one are fixedly installed on the left and right sides of the lower surface of the inner cavity of the vacuum box, the opposite sides of the bracket one are rotatably connected with a rotating shaft two, the rear side of the bracket one is fixedly installed with a motor three, the rear end of the rotating shaft two located on the rear side passes through the bracket one and is fixedly installed with the output end of the motor three, the outer sides of the two rotating shafts two on the left are fixedly installed with a unwinding roller by screws, and the outer sides of the two rotating shafts two on the left are fixedly installed with a winding roller by screws, an L-shaped groove is opened through the front left side of the winding roller, and a clamping assembly is fixedly installed on the right side of the groove, the clamping assembly includes a spring, the fixed end of the spring is fixedly installed on the right side of the clamping assembly, the left end of the spring is fixedly installed with a rubber pressure plate, and the lower surface of the rubber pressure plate is slidably connected to the lower surface of the bottom of the groove.

[0014] Preferably, a bracket 2 is fixedly mounted on the lower surface of the inner cavity of the vacuum box, and the bracket 2 is located directly below the storage box, and a rubber stick is rotatably connected to the opposite side of the bracket 2.

[0015] Preferably, the front and rear sides of the lower surface of the groove bottom are both provided with sliding grooves, the front and rear sides of the lower surface of the rubber pressure plate are both integrally formed with guide blocks, and the outer side of the guide block is slidably connected to the inner cavity of the sliding groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The utility model provides a roll-to-roll vacuum coating equipment for packaging film. The four motors, gears, tooth plates, guide rods and sleeves cooperate to push the coating roller up and down, and can adjust the distance between the coating roller and the rubber roller. The gear rotates one circle and pushes the tooth plate to move one tooth. Each tooth moved represents a fixed distance, which realizes quantitative adjustment and ensures parameter consistency. It meets the processing requirements of packaging films of different thicknesses and improves the versatility of the equipment. The raw materials in the storage box are evenly stirred by the motor one, the rotating shaft one and the stirrer. At the same time, the scraper is used to scrape off the excess raw materials on the coating roller to ensure the uniformity and consistency of the film layer.

[0018] 2. The utility model provides a winding vacuum coating equipment for packaging film. Through the cooperation of springs, rubber pressure plates, guide blocks and grooves, the distance between the rubber pressure plates and the grooves can be adjusted so that the rubber pressure plates can press the substrate tightly to prevent the substrate from being separated from the winding roller and offset during the winding process, thereby achieving precise winding of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom-up structure of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the film covering component of the present utility model;

[0022] Figure 4 This is an enlarged structural diagram of point A of the present utility model;

[0023] Figure 5 This is a schematic structural diagram of a rubber stick of the present utility model;

[0024] Figure 6 This is a schematic structural diagram of the unwinding roller of the present utility model;

[0025] Figure 7 This is a schematic structural diagram of the winding roller of the present utility model;

[0026] Figure 8 This is a schematic cross-sectional view of the winding roller of the present invention;

[0027] Figure 9 This is a schematic structural diagram of the compression assembly of the present utility model.

[0028] In the figure: 1. Vacuum box; 2. Box door; 3. Vacuum coating machine body; 4. Cooling mechanism; 5. Coating assembly; 51. Bracket three; 52. Storage box; 53. Coating roller; 54. Sleeve; 55. Guide rod; 56. Motor one; 57. Motor two; 58. Rotating shaft one; 59. Agitator; 510. Filling pipe; 511. Scraper; 512. Motor four; 513. Tooth plate; 514. Gear; 515. Rubber sealing ring; 6. Winding assembly; 61. Bracket one; 62. Unwinding roller; 63. Bracket two; 64. Rubber roller; 65. Motor three; 66. Rewinding roller; 67. Rotating shaft two; 68. Groove; 69. Pressing assembly; 691. Spring; 692. Rubber pressure plate; 693. Guide block; 610. Slide; 7. Vacuum pump; 8. Vacuum pipe. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figures 1-9 As shown, a roll-to-roll vacuum coating equipment for packaging film, a winding assembly 6, a vacuum coating machine body 3 and a cooling mechanism 4 are fixedly installed on the lower surface of the inner cavity of the vacuum box 1, and the vacuum coating machine body 3 is located on the left side of the cooling mechanism 4, a coating assembly 5 is fixedly installed on the upper surface of the inner cavity of the vacuum box 1, the coating assembly 5 is located on the left side of the vacuum coating machine body 3, an exhaust pump 7 is fixedly installed on the left side of the vacuum box 1, an exhaust pipe 8 extending to the left side of the inner cavity of the vacuum box 1 is fixedly installed on the output end of the exhaust pump 7, and a box door 2 is hinged on the front side of the vacuum box 1.

[0031] The coating assembly 5 includes a bracket three 51, the upper surface of the bracket three 51 is fixedly installed with the upper surface of the inner cavity of the vacuum box 1, the rear side of the bracket three 51 is fixedly installed with a motor four 512, the opposite side of the bracket three 51 is rotatably connected with a gear 514, the output end of the motor four 512 passes through the bracket three 51 and is fixedly installed with the rear end of the gear 514, the left side of the gear 514 is meshed with a tooth plate 513, the left side of the tooth plate 513 is fixedly installed with a storage box 52 for storing liquid coating, the opposite side of the bottom of the storage box 52 is rotatably connected with a coating rod 53, the bottom of the rear side of the storage box 52 is fixedly installed with a motor two 57, and the output end of the motor two 57 passes through the storage box 52 and is fixedly installed with the rear end of the coating rod 53, the left side of the storage box 52 is fixedly installed with a filling pipe 510 for convenient filling of raw materials, and rubber sealing rings 515 are fixedly installed on both sides of the discharge port at the bottom of the storage box 52 to prevent the raw materials from leaking from the connection between the storage box 52 and the coating rod 53.

[0032] The winding assembly 6 includes two brackets 1 61, the lower surfaces of the two brackets 1 61 are fixedly installed on the left and right sides of the lower surface of the inner cavity of the vacuum box 1, the opposite sides of the bracket 1 61 are rotatably connected with the rotating shaft 2 67, the rear side of the bracket 1 61 is fixedly installed with the motor 3 65, the rear end of the rotating shaft 2 67 at the rear side passes through the bracket 1 61 and is fixedly installed with the output end of the motor 3 65, the outside of the two rotating shafts 2 67 on the left side is fixedly installed with the unwinding roller 62 by screws, and the outside of the two rotating shafts 2 67 on the left side is fixedly installed with the winding roller 66 by screws, and the front left side of the winding roller 66 passes through An L-shaped groove 68 is penetrated, and a clamping assembly 69 is fixedly installed on the right side of the groove 68. The clamping assembly 69 includes a spring 691. The fixed end of the spring 691 is fixedly installed on the right side of the clamping assembly 69. A rubber pressure plate 692 is fixedly installed on the left end of the spring 691. The lower surface of the rubber pressure plate 692 is slidably connected to the lower surface of the bottom of the groove 68. The lower surface of the rubber pressure plate 692 fits with the upper surface of the groove 68, so that the rubber pressure plate 692 can pop out smoothly to press the substrate. The rubber pressure plate 692 is made of rubber and will not affect the structure and quality of the packaging film.

[0033] The vacuum coating machine body 3 includes components such as a frame and a heating tube.

[0034] The cooling mechanism 4 includes components such as a frame, a heat dissipation fan, and an exhaust pipe.

[0035] The vacuum box 1 is opened through the box door 2, and then the treated substrate to be coated is placed on the unwinding roller 62, and the substrate is passed between the coating roller 53 and the rubber roller 64, and one end of the substrate is placed in the groove 68. The rubber pressure plate 692 is pushed to move in the groove 68 by the spring 691, so that the rubber pressure plate 692 approaches the substrate and presses the substrate to prevent the substrate from being separated from the winding roller 66 and deflecting during the winding process, so as to achieve accurate winding of the substrate. Then the box door 2 is closed, and the gas in the vacuum box 1 is extracted by the vacuum pump 7 and the exhaust pipe 8 to achieve the required vacuum degree. The left motor 3 65, the rotating shaft 2 67, the unwinding roller 6 2 cooperates to unwind the substrate, and the bracket three 51 pushes the coating roller 53 up and down, and can adjust the distance between the coating roller 53 and the rubber roller 64 to adapt to the pre-coating operation of substrates of different thicknesses. The motor two 57 drives the coating roller 53 to rotate and coat the substrate to ensure the uniformity and consistency of the film layer. The substrate is driven to be wound by the right motor three 65, the rotating shaft two 67, and the winding roller 66. The substrate passes through the vacuum coating machine body 3 to form a coating layer, and then is cooled by the cooling mechanism 4, so as to realize the continuous coating processing of the plastic film in a vacuum environment, so that the packaging film can achieve a dynamic anti-counterfeiting effect.

[0036] like Figure 1-Figure 3 As shown, two sleeves 54 are fixedly installed on the upper surface of the inner cavity of the vacuum box 1, and the inner cavity of the sleeve 54 is slidably connected to a guide rod 55, and the lower surface of the guide rod 55 is fixedly installed on the upper surface of the storage box 52.

[0037] Through the action of the guide rod 55 and the sleeve 54, the supporting strength of the storage box 52 is improved to prevent the storage box 52 from tipping over during use, while ensuring that the tooth plate 513 can drive the storage box 52 to move up and down smoothly.

[0038] like Figure 3 As shown, a rotating shaft 58 is rotatably connected to the opposite side of the inner cavity of the storage box 52, and a motor 56 is fixedly installed on the rear side of the storage box 52, and the motor 56 is located on the upper side of the motor 2 57. The output end of the motor 56 passes through the storage box 52 and is fixedly installed on the rear end of the rotating shaft 58, and a number of agitators 59 are fixedly installed on the outer side of the rotating shaft 58.

[0039] The raw materials in the storage box 52 are stirred evenly by the motor 56, the rotating shaft 58 and the stirrer 59 to ensure the uniformity and consistency of the film layer.

[0040] like Figure 3 、 Figure 4 As shown, a scraper 511 is fixedly installed on the left side of the lower surface of the inner cavity of the storage box 52.

[0041] The scraper 511 can scrape off excess raw material on the coating roller 53, so that the coating roller 53 can evenly apply the raw material on the substrate, ensuring the uniformity and consistency of the coating layer.

[0042] like Figure 7-Figure 9 As shown, the front and rear sides of the lower surface of the bottom of the groove 68 are both provided with a slide groove 610 , and the front and rear sides of the lower surface of the rubber pressure plate 692 are both integrally formed with a guide block 693 , and the outer side of the guide block 693 is slidably connected with the inner cavity of the slide groove 610 .

[0043] The guide block 693 and the slide groove 610 can guide the rubber pressure plate 692 to move, thereby improving the stability of the left and right movement of the rubber pressure plate 692.

[0044] The working principle of the present invention is as follows: the vacuum box 1 is opened through the box door 2, and then the processed substrate to be coated is placed on the unwinding roller 62, and the substrate is passed between the coating roller 53 and the rubber roller 64, and one end of the substrate is placed in the groove 68, and the rubber pressure plate 692 is pushed by the spring 691 to drive the guide block 693 to slide in the slide groove 610, so that the rubber pressure plate 692 approaches the substrate and presses the substrate to prevent the substrate from being separated from the winding roller 66 and deflected during the winding process, so as to achieve accurate winding of the substrate, and then the box door 2 is closed, and the gas in the vacuum box 1 is extracted by the air pump 7 and the air extraction pipe 8 to achieve the required vacuum degree, and the substrate is unwound by the cooperation of the left motor 3 65, the rotating shaft 2 67, and the unwinding roller 62, and the raw materials in the storage box 52 are evenly stirred by the motor 1 56, the rotating shaft 1 58, and the agitator 59. The cooperation of the wheel 514, the guide rod 55 and the sleeve 54 pushes the coating roller 53 to move up and down, and can adjust the distance between the coating roller 53 and the rubber roller 64 to adapt to the pre-coating operation of substrates of different thicknesses. The gear 514 rotates one circle to push the tooth plate 513 to move one tooth. Each movement of one tooth represents a fixed distance of movement, realizing quantitative adjustment and ensuring the consistency of parameters. The motor 2 57 is used to drive the coating roller 53 to rotate, and at the same time the scraper 511 scrapes off the excess raw material on the coating roller 53 to ensure the uniformity and consistency of the film layer, so that the coating roller 53 can coat the substrate. The substrate is driven to be wound by the right motor 3 65, the rotating shaft 2 67 and the winding roller 66. The substrate forms a coating layer through the vacuum coating machine body 3, and is then cooled by the cooling mechanism 4, so that continuous coating processing of the plastic film can be realized under a vacuum environment, so that the packaging film can achieve a dynamic anti-counterfeiting effect.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A roll-to-roll vacuum coating device for packaging film, comprising a vacuum box (1), characterized in that: The lower surface of the inner cavity of the vacuum box (1) is fixedly mounted with a winding assembly (6), a vacuum coating machine body (3) and a cooling mechanism (4), and the vacuum coating machine body (3) is located on the left side of the cooling mechanism (4); the upper surface of the inner cavity of the vacuum box (1) is fixedly mounted with a coating assembly (5), and the coating assembly (5) is located on the left side of the vacuum coating machine body (3); an air pump (7) is fixedly mounted on the left side of the vacuum box (1); an air extraction pipe (8) extending to the left side of the inner cavity of the vacuum box (1) is fixedly mounted on the output end of the air extraction pump (7); and a box door (2) is hingedly connected to the front side of the vacuum box (1); The coating assembly (5) includes a bracket three (51), the upper surface of the bracket three (51) is fixedly mounted on the upper surface of the inner cavity of the vacuum box (1), a motor four (512) is fixedly mounted on the rear side of the bracket three (51), and a gear (514) is rotatably connected to the opposite side of the bracket three (51), the output end of the motor four (512) passes through the bracket three (51) and is fixedly mounted on the rear end of the gear (514), and a tooth plate (513) is meshed on the left side of the gear (514), and the tooth plate ( A material storage box (52) is fixedly installed on the left side of the material storage box (513), and a coating roller (53) is rotatably connected to the opposite side of the bottom of the material storage box (52). A second motor (57) is fixedly installed on the bottom of the rear side of the material storage box (52), and the output end of the second motor (57) passes through the material storage box (52) and is fixedly installed on the rear end of the coating roller (53). A filling pipe (510) is fixedly installed on the left side of the material storage box (52), and rubber sealing rings (515) are fixedly installed on both sides of the material outlet at the bottom of the material storage box (52); The winding assembly (6) includes two brackets (61), the lower surfaces of the two brackets (61) are fixedly installed on the left and right sides of the lower surface of the inner cavity of the vacuum box (1), and the opposite sides of the brackets (61) are rotatably connected to the rotating shaft (67). The rear side of the bracket (61) is fixedly installed with the motor (65). The rear end of the rotating shaft (67) on the rear side passes through the bracket (61) and is fixedly installed with the output end of the motor (65). The outer sides of the two rotating shafts (67) on the left are fixedly installed with the unwinding rollers (62) by screws. The two rotating shafts (67) on the left are fixedly installed with the unwinding rollers (62). The outer side of the second rotating shaft (67) is fixedly mounted with a winding rod (66) by screws, and an L-shaped groove (68) is provided through the front left side of the winding rod (66). A clamping assembly (69) is fixedly mounted on the right side of the groove (68). The clamping assembly (69) includes a spring (691), and the fixed end of the spring (691) is fixedly mounted on the right side of the clamping assembly (69). A rubber pressure plate (692) is fixedly mounted on the left end of the spring (691), and the lower surface of the rubber pressure plate (692) is slidably connected to the lower surface of the bottom of the groove (68).

2. The roll-to-roll vacuum coating equipment for packaging film according to claim 1, characterized in that: Two sleeves (54) are fixedly mounted on the upper surface of the inner cavity of the vacuum box (1), the inner cavity of the sleeve (54) is slidably connected to a guide rod (55), and the lower surface of the guide rod (55) is fixedly mounted on the upper surface of the storage box (52).

3. The roll-to-roll vacuum coating equipment for packaging film according to claim 1, characterized in that: The opposite side of the inner cavity of the material storage box (52) is rotatably connected to a rotating shaft (58), and a motor (56) is fixedly installed on the rear side of the material storage box (52), and the motor (56) is located on the upper side of the motor (57). The output end of the motor (56) passes through the material storage box (52) and is fixedly installed on the rear end of the rotating shaft (58), and a plurality of stirrers (59) are fixedly installed on the outer side of the rotating shaft (58).

4. The roll-to-roll vacuum coating equipment for packaging film according to claim 1, characterized in that: A scraper (511) is fixedly mounted on the left side of the lower surface of the inner cavity of the storage box (52).

5. The roll-to-roll vacuum coating equipment for packaging film according to claim 1, characterized in that: A second bracket (63) is fixedly mounted on the lower surface of the inner cavity of the vacuum box (1), and the second bracket (63) is located directly below the storage box (52). A rubber stick (64) is rotatably connected to the opposite side of the second bracket (63).

6. The roll-to-roll vacuum coating equipment for packaging film according to claim 1, characterized in that: The front and rear sides of the lower surface of the bottom of the groove (68) are both provided with a slide groove (610), and the front and rear sides of the lower surface of the rubber pressure plate (692) are both integrally formed with a guide block (693), and the outer side of the guide block (693) is slidably connected to the inner cavity of the slide groove (610).

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