Coating apparatus for a raw, sterile liquid packaging carton

Abstract

The utility model belongs to paperboard coating technical field especially relates to a kind of coating equipment of natural color sterile liquid packaging paperboard, it includes: transport platform, the top of the transport platform is fixedly connected with coating box, the inner chamber lower end of the coating box is fixedly connected with comma type roller, the inner chamber top of the transport platform is provided with the coating roller matched with comma type roller, the inner chamber one end of the coating box is fixedly connected with the guide plate for guiding coating material, gap is arranged between the guide plate and comma type roller, the inner chamber of the coating box is provided with the spraying assembly for spraying coating material to guide plate;Compared with prior art, the utility model can inhibit the up and down flexural deformation of comma type roller, ensure that the matching gap between comma type roller and coating roller always remains stable, reduce coating thickness deviation, improve coating processing precision, reduce the local accumulation or uneven distribution phenomenon when coating material contacts comma type roller, improve the uniformity of substrate coating.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard coating technology, and in particular relates to a coating device for natural-colored sterile liquid packaging cardboard. Background Technology

[0002] Natural aseptic liquid refers to liquid products that have not added pigments, are produced in a sterile environment, and meet the requirements for microbiological indicators. Natural aseptic liquid packaging cardboard is a six-layer structure material with cardboard as the base material and composite polyethylene, aluminum foil, etc. The coating process is crucial in the production of this packaging cardboard, forming a dense barrier layer on the outside of the cardboard to prevent microbial invasion and light oxidation, and optimizing the surface properties of the cardboard to ensure printing clarity and filling sealing. At the same time, the coating layer can also enhance the mechanical strength of the cardboard, avoid packaging damage caused by compression during transportation, and ultimately ensure the long-term storage safety of liquid products in a sterile environment.

[0003] Chinese Patent Publication No. 202111033214.5 discloses a coating equipment, relating to the field of LED screen manufacturing technology. This coating equipment includes a machine base and a coating mechanism. The coating mechanism is mounted on the machine base and includes a coating assembly. The coating assembly includes two coating blades and a gap adjusting component. The gap adjusting component has a through groove, and one side of the through groove has a glue outlet extending to the outside of the gap adjusting component. The gap adjusting component is clamped between the two coating blades. Each coating blade has a glue supply hole, one end of which communicates with the through groove. This coating equipment can ensure uniform glue thickness, high glue coating efficiency, and prevent air bubbles from being mixed into the glue surface.

[0004] However, existing technologies have the following problems when used: 1. Current coating equipment typically uses comma rollers to coat cardboard. However, during operation, comma rollers are susceptible to the effects of coating pressure, substrate conveying resistance, and their own weight, causing vertical bending deformation. This results in fluctuations in the fit clearance between the comma roller and the coating roller, leading to coating thickness deviations and reduced coating accuracy. 2. Spraying equipment usually sprays paint directly onto the cardboard. When the paint comes into contact with the curved surface of the comma-shaped roller, it causes local areas of paint accumulation or sparse distribution, resulting in uneven coating thickness on the substrate and affecting the product's appearance and performance. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a coating device for natural-colored aseptic liquid packaging cardboard, comprising: A transport platform is provided, with a coating box fixedly connected to its top. A comma-shaped roller is fixedly connected to the lower end of the inner cavity of the coating box. A coating roller that mates with the comma-shaped roller is provided at the top of the inner cavity of the transport platform. A guide plate for guiding the coating is fixedly connected to one end of the inner cavity of the coating box. A gap is provided between the guide plate and the comma-shaped roller. A spraying assembly for spraying coating onto the guide plate is provided in the inner cavity of the coating box. A threaded seat is fixedly connected to the top of the coating box. A screw is threadedly connected to the inner cavity of the threaded seat. The bottom end of the screw penetrates the top of the coating box and is provided with a connecting part. A fixing part is rotatably connected to the outside of the connecting part. An extension part for preventing the comma-shaped roller from deflecting up and down is fixedly connected to the bottom end of the fixing part. The bottom end of the extension part is fixedly connected to the middle of the outer side wall of the comma-shaped roller.

[0006] Furthermore, the top of the transport platform is rotatably equipped with multiple sets of conveying rollers.

[0007] Furthermore, the guide plate is C-shaped and adapted to the shape of the comma-shaped roller.

[0008] Furthermore, the spraying assembly includes a spray head, which is fixedly disposed above the inner cavity of the coating box and located on the upper side of the guide plate.

[0009] Furthermore, a pump body is fixedly connected to the top of the inner cavity of the coating box, and the pump body is connected to the nozzle through a connecting pipe. A paint tank connected to the pump body is fixedly connected to the top of the coating box.

[0010] Furthermore, a first mounting part and a second mounting part are fixedly connected to the top and bottom of the connecting part, respectively, and the first mounting part is fixedly connected to the bottom end of the screw.

[0011] Furthermore, the first mounting part is located at the upper end of the fixing part, and the second mounting part is located at the lower end of the fixing part.

[0012] Furthermore, a rotating head is fixedly connected to the top of the screw.

[0013] Furthermore, the fixing part and the extension part are integrally formed from aluminum metal.

[0014] Compared with existing technologies, the coating equipment for natural-colored aseptic liquid packaging cardboard described in this utility model has the following advantages: 1. The support and adjustment mechanism, consisting of a threaded seat, screw, fixing part, and extension part, uses the extension part to be fixedly connected to the middle of the outer wall of the comma-shaped roller. With the lifting and lowering adjustment of the screw, a stable support force can be applied to the comma-shaped roller, which suppresses the up-and-down bending deformation caused by coating pressure, substrate conveying resistance, and its own weight. This ensures that the fit gap between the comma-shaped roller and the coating roller remains stable, reduces coating thickness deviation, and improves coating processing accuracy.

[0015] 2. By setting a C-shaped guide plate that matches the shape of the comma-shaped roller, the paint sprayed by the spraying assembly first falls on the guide plate, and after being guided by the guide plate, it is evenly distributed along the arc surface of the comma-shaped roller. This reduces the local accumulation or uneven distribution of paint when it comes into contact with the comma-shaped roller, and improves the uniformity of the substrate coating. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural diagram of the comma-shaped roller of this utility model; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a cross-sectional view of the screw of this utility model; Figure 5 This is a structural diagram of the nozzle of this utility model.

[0017] The markings in the diagram are as follows: 100. Transport platform; 110. Coating roller; 111. Conveying roller; 120. Coating box; 130. Comma-shaped roller; 140. Guide plate; 141. Gap; 200. Pump body; 210. Paint box; 220. Connecting pipe; 230. Nozzle; 300. Threaded seat; 310. Screw; 320. Rotating head; 330. First mounting part; 331. Connecting part; 332. Second mounting part; 340. Fixing part; 341. Extension part. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] like Figures 1-5 As shown, a coating apparatus for natural-colored aseptic liquid packaging cardboard includes: A transport platform 100 is provided, with a coating box 120 fixedly connected to the top of the transport platform 100. A comma-shaped roller 130 is fixedly connected to the lower end of the inner cavity of the coating box 120. A coating roller 110 that cooperates with the comma-shaped roller 130 is provided at the top of the inner cavity of the transport platform 100. A guide plate 140 for guiding the coating is fixedly connected to one end of the inner cavity of the coating box 120. A gap 141 is provided between the guide plate 140 and the comma-shaped roller 130. A spraying assembly for spraying coating onto the guide plate 140 is provided in the inner cavity of the coating box 120. A threaded seat 300 is fixedly connected to the top of the coating box 120. A screw 310 is threadedly connected to the inner cavity of the threaded seat 300. The bottom end of the screw 310 passes through the top of the coating box 120 and is provided with a connecting part 331. A fixing part 340 is rotatably connected to the outer side of the connecting part 331. An extension part 341 for preventing the comma-shaped roller 130 from deflecting up and down is fixedly connected to the bottom end of the fixing part 340. The bottom end of the extension part 341 is fixedly connected to the middle of the outer side wall of the comma-shaped roller 130.

[0023] As a preferred example of this utility model, the coating box 120 fixed to the top of the transport table 100 forms a closed space for coating operations; the comma-shaped roller 130 at the lower end of the inner cavity of the coating box 120 cooperates with the coating roller 110 at the top of the inner cavity of the transport table 100 to realize the coating operation on the paper; the guide plate 140 at one end of the inner cavity of the coating box 120 is used to guide the flow of paint to ensure that the paint adheres to the surface of the comma-shaped roller 130; the spraying assembly sprays paint onto the guide plate 140, and the threaded seat 300 at the top of the coating box 120 and... The screw 310 is threaded, and the bottom end of the screw 310 is rotatably connected to the fixing part 340 through the connecting part 331. The extension part 341 at the bottom end of the fixing part 340 is fixed in the middle of the outer wall of the comma-shaped roller 130. By adjusting the screw 310, the extension part 341 can be driven to apply a supporting force to the comma-shaped roller 130, preventing the comma-shaped roller 130 from bending up and down during operation, ensuring coating stability, and improving coating uniformity. The cutting edge of the comma roller is sharp and comma-shaped, which can scrape off excess coating from the surface of the substrate.

[0024] In the example of this application, the top of the transport table 100 is rotatably equipped with multiple sets of transport rollers 111.

[0025] As a preferred example of this utility model, multiple sets of conveying rollers 111 rotatably mounted on the top of the conveyor table 100 can provide support during the paper transport process.

[0026] In the example of this application, the guide plate 140 is C-shaped and is adapted to the shape of the comma-shaped roller 130.

[0027] As a preferred example of this utility model, the guide plate 140 is designed as a C-shape that matches the shape of the comma-shaped roller 130, so that its inner sidewall fits the curved surface of the comma-shaped roller 130. When the paint is guided by the guide plate 140, it can be distributed along the arc of the comma-shaped roller 130, reducing the situation of paint accumulation or uneven distribution in some areas.

[0028] In the example of this application, the spraying assembly includes a nozzle 230, which is fixedly disposed above the inner cavity of the coating box 120 and located on the upper side of the guide plate 140.

[0029] As a preferred example of this utility model, the nozzle 230 of the spraying assembly is fixed above the inner cavity of the coating box 120 and located on the upper side of the guide plate 140, so that the paint sprayed by the nozzle 230 falls on the guide plate 140.

[0030] In the example of this application, a pump body 200 is fixedly connected to the top of the inner cavity of the coating box 120, the pump body 200 is connected to the nozzle 230 through a connecting pipe 220, and a paint tank 210 connected to the top of the coating box 120 is fixedly connected to the pump body 200.

[0031] As a preferred example of this utility model, the pump body 200 at the top of the inner cavity of the coating box 120 is connected to the nozzle 230 via a connecting pipe 220, and the paint box 210 at the top provides the paint source for the pump body 200.

[0032] In the example of this application, the top and bottom of the connecting part 331 are respectively fixedly connected to the first mounting part 330 and the second mounting part 332, and the first mounting part 330 is fixedly connected to the bottom end of the screw 310.

[0033] As a preferred example of this utility model, the first mounting portion 330 at the top of the connecting portion 331 is fixed to the bottom end of the screw 310, and the second mounting portion 332 at the bottom strengthens the connection between the connecting portion 331 and the fixing portion 340, thereby enhancing the stability of the connection between the screw 310 and the fixing portion 340.

[0034] In the example of this application, the first mounting part 330 is located at the upper end of the fixing part 340, and the second mounting part 332 is located at the lower end of the fixing part 340.

[0035] As a preferred example of this utility model, the arrangement of the first mounting part 330 located at the upper end of the fixing part 340 and the second mounting part 332 located at the lower end of the fixing part 340 ensures that both the upper and lower ends of the fixing part 340 are longitudinally constrained by the connecting part 331, allowing the connecting part 331 to rotate inside the fixing part 340.

[0036] In the example of this application, a rotating head 320 is fixedly connected to the top of the screw 310.

[0037] As a preferred example of this utility model, the rotating head 320 at the top of the screw 310 provides the operator with a convenient point of force application, and the screw 310 can be driven to rise and fall within the threaded seat 300 by rotating the rotating head 320.

[0038] In the example of this application, the fixing part 340 and the extension part 341 are integrally formed of aluminum.

[0039] As a preferred example of this utility model, the fixing part 340 and the extension part 341 are integrally formed of aluminum metal. Aluminum metal has the characteristics of being lightweight, which can reduce the extra load on the comma-shaped roller 130 and provide sufficient rigidity to resist the bending force of the comma-shaped roller 130.

[0040] In practical use, the comma-shaped roller 130 at the lower end of the coating box 120's inner cavity cooperates with the coating roller 110 at the top of the conveyor table 100's inner cavity to achieve the coating operation on the cardboard. The guide plate 140 at one end of the coating box 120's inner cavity is used to guide the flow of the coating material, ensuring that the coating material adheres to the surface of the comma-shaped roller 130. The spraying assembly sprays the coating material onto the guide plate 140. The threaded seat 300 at the top of the coating box 120 is threadedly connected to the screw 310, and the bottom end of the screw 310 is rotatably connected to the fixing part 340 through the connecting part 331. The extension 341 at the bottom of the fixing part 340 is fixed to the middle of the outer wall of the comma-shaped roller 130. By adjusting the screw 310, the extension 341 can be driven to apply a supporting force to the comma-shaped roller 130, preventing the comma-shaped roller 130 from deflecting up and down during operation, ensuring coating stability, and improving coating uniformity. The cutting edge of the comma roller is sharp and comma-shaped, which can scrape off excess coating from the substrate surface. Multiple sets of conveying rollers 111 rotatably mounted on the top of the conveyor table 100 drive the paper jam forward. During the conveying process, the paper jam enters... Inside the coating box 120, which is fixedly connected to the top of the transport table 100, the pump body 200 at the top of the coating box 120 draws paint from the paint box 210 fixed at the top and transports the paint through the connecting pipe 220 to the nozzle 230 fixed above the coating box 120 and located on the upper side of the guide plate 140. The nozzle 230 sprays the paint onto the C-shaped guide plate 140 fixed at one end of the coating box 120. Because the guide plate 140 is compatible with the shape of the comma-shaped roller 130, the paint is guided by the guide plate 140. The material flows through the gap 141 between the two to the surface of the comma-shaped roller 130 at the lower end of the inner cavity of the coating box 120. Then, the comma-shaped roller 130 cooperates with the coating roller 110 at the top of the inner cavity of the transport table 100 to perform coating operation on the passing cardboard. At the same time, the screw 310, which is internally threaded to the threaded seat 300 fixed at the top of the coating box 120, has a rotating head 320 at its top that can be rotated to drive the screw 310 to rise and fall. The support state of the extension 341 on the comma-shaped roller 130 can be adjusted by the rise and fall of the screw 310.

[0041] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A coating device for natural-colored aseptic liquid packaging cardboard, characterized in that, include: A transport platform (100) is provided with a coating box (120) fixedly connected to its top. A comma-shaped roller (130) is fixedly connected to the lower end of the inner cavity of the coating box (120). A coating roller (110) that cooperates with the comma-shaped roller (130) is provided at the top of the inner cavity of the transport platform (100). A guide plate (140) for guiding the coating is fixedly connected to one end of the inner cavity of the coating box (120). A gap (141) is provided between the guide plate (140) and the comma-shaped roller (130). A spraying assembly for spraying coating on the guide plate (140) is provided in the inner cavity of the coating box (120). A threaded seat (300) is fixedly connected to the top of the coating box (120). The inner cavity of the threaded seat (300) is threadedly connected to a screw (310). The bottom end of the screw (310) penetrates the top of the coating box (120) and is provided with a connecting part (331). A fixing part (340) is rotatably connected to the outside of the connecting part (331). An extension part (341) for preventing the comma-shaped roller (130) from bending up and down is fixedly connected to the bottom end of the fixing part (340). The bottom end of the extension part (341) is fixedly connected to the middle of the outer side wall of the comma-shaped roller (130).

2. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 1, characterized in that, The top of the transport platform (100) is rotatably equipped with multiple sets of conveyor rollers (111).

3. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 1, characterized in that, The guide plate (140) is C-shaped and is adapted to the shape of the comma-shaped roller (130).

4. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 1, characterized in that, The spraying assembly includes a nozzle (230) which is fixedly disposed above the inner cavity of the coating box (120) and located on the upper side of the guide plate (140).

5. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 4, characterized in that, A pump body (200) is fixedly connected to the top of the inner cavity of the coating box (120). The pump body (200) is connected to the nozzle (230) through a connecting pipe (220). A paint tank (210) connected to the pump body (200) is fixedly connected to the top of the coating box (120).

6. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 1, characterized in that, The top and bottom of the connecting part (331) are respectively fixedly connected to a first mounting part (330) and a second mounting part (332), and the first mounting part (330) is fixedly connected to the bottom end of the screw (310).

7. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 6, characterized in that, The first mounting part (330) is located at the upper end of the fixing part (340), and the second mounting part (332) is located at the lower end of the fixing part (340).

8. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 1, characterized in that, A rotating head (320) is fixedly connected to the top of the screw (310).

9. The coating equipment for natural-colored aseptic liquid packaging cardboard according to claim 1, characterized in that, The fixing part (340) and the extension part (341) are integrally formed of aluminum metal.

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