A paperboard printing device with automatic plate loading structure

Abstract

The utility model discloses a cardboard printing device with an automatic plate loading structure in the field of paper printing technology, aiming to solve the problem of inconvenient operation of manually replacing printing screens in the prior art. It includes: a printing platform, used to provide a printing support for receiving the cardboard; a conveying mechanism, used to convey the cardboard to the printing platform or to send the cardboard out from the printing platform; a screen feeding mechanism, the screen feeding mechanism includes a screen storage box and a transfer mechanism, the screen storage box is used to store printing screens of different categories, and the transfer mechanism is used to place the corresponding printing screen on the cardboard of the printing platform; a scraper mechanism, which is arranged above the printing platform and is used to print the printing coating on the surface of the cardboard through the printing screen; the utility model is used to automatically replace the printing screen according to actual use needs during the cardboard printing process, which can simplify manual operation and improve printing efficiency.

Description

Technical Field

[0001] The utility model relates to a paperboard printing device with an automatic plate loading structure, belonging to the technical field of paper plate printing. Background Art

[0002] In the field of cardboard printing technology, screen printing is often used to print corresponding patterns on cardboard. However, for complex graphics, different printing screens may need to be switched to make the printing types and colors richer. In order to print a variety of patterns, the screens need to be switched during the printing process. Traditionally, the printing screens are usually replaced and installed manually, which is not only troublesome to operate but also greatly affects the printing efficiency. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a cardboard printing device with an automatic plate loading structure, which is used to automatically replace the printing screen according to actual use needs during the cardboard printing process, thereby simplifying manual operations and improving printing efficiency.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] The utility model provides a paperboard printing device with an automatic plate loading structure, comprising:

[0006] Printing platform, used to provide printing support for receiving paperboard;

[0007] A conveying mechanism, used for conveying the cardboard onto the printing platform or conveying the cardboard off the printing platform;

[0008] A screen feeding mechanism, the screen feeding mechanism comprising a screen storage box and a transfer mechanism, the screen storage box is used to store printing screens of different categories, and the transfer mechanism is used to place the corresponding printing screen on the cardboard of the printing platform or place the printing screen on the cardboard into the screen storage box;

[0009] The scraper mechanism is arranged above the printing platform and is used to print the printing coating on the surface of the paperboard through the printing screen.

[0010] Specifically, a lifting mechanism is provided on one side of the printing platform, the screen storage box is provided at the output end of the lifting mechanism, a plurality of hollow placement layers are provided on the screen storage box, each hollow placement layer is used to place a printing screen, and the transfer mechanism can place the printing screen in the corresponding placement layer on the printing platform.

[0011] Specifically, the transfer mechanism includes a cylinder and a push rod arranged at the end of the cylinder, and the push rod can act on the hollow layer inside the screen storage box to push out the printing screen in the hollow layer. The transfer mechanism also includes a driving rod rotatably arranged above the printing platform, and the outer ring of the driving rod is provided with a driving wheel, and the driving wheel is used to act on the surface of the printing screen so that the printing screen can move relative to the printing platform.

[0012] Specifically, the push rod is U-shaped, and the action ends on both sides of the push rod are respectively installed with clamping claw cylinders, and the two clamping claw cylinders are used to clamp the printing screen to put the printing screen back into the hollow layer of the screen storage box.

[0013] Specifically, material storage platforms are provided on both sides of the printing platform. The material storage platform is a block with an opening on one side. The bottom surface of the opening is a material storage plane. The bottom surfaces of the two material storage platforms are close to the top surface of the printing platform, and the opening side of the material storage platform is directed toward the printing platform.

[0014] Specifically, both sides of each material storage platform are installed with limit plates, the limit plates extend toward the side close to the printing platform, and the height of the limit plates is higher than the upper surface of the printing platform.

[0015] Specifically, sink grooves are provided on both sides of the printing platform near the material storage platform, and a number of roller assemblies are installed in the two sink grooves on both sides. Each of the roller assemblies is elastically installed on the printing platform and can float elastically in the vertical direction. The rolling direction of the roller assembly is parallel to the conveying direction of the printing screen, and the highest position rolling surface of each roller assembly in a free state is higher than the upper surface of the printing platform.

[0016] Specifically, a plurality of square grooves are opened on the trough along the extension direction of the trough, and the roller assembly is embedded in the square grooves. The roller assembly includes a first plate body and a second plate body. The first plate body is in a block shape and embedded in the square groove. The second plate body is elastically connected to the first plate body, and a roller is rotatably arranged on the second plate body.

[0017] Specifically, the printing platform is block-shaped as a whole, and concave surfaces are arranged on both sides of the printing platform. Pulleys are rotatably arranged at the concave positions on both sides of the printing platform, and belts are mounted on the pulleys for passing through the concave positions of the printing platform.

[0018] Specifically, the scraper mechanism includes a driving mechanism, a scraper body and a connecting member. The scraper body and the connecting member are elastically connected. The driving mechanism is used to drive the connecting member to move back and forth so that the scraper body can apply the printing paint on the printing screen.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model provides a screen feeding mechanism on one side of the printing platform for providing a variety of different types of printing screens, and realizes the switching of the screens on the printing platform and in the screen storage box through the transfer mechanism. The corresponding printing screens can be efficiently and automatically switched during the printing process, thereby simplifying the workers' operation while improving the exquisiteness of printing. The screen is installed in a movable manner, and the replacement operation is convenient, which is conducive to improving printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the paperboard printing device provided by the embodiment of the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of a paperboard printing device provided by an embodiment of the utility model;

[0023] Figure 3 It is a side view of the paperboard printing device provided by the embodiment of the utility model;

[0024] Figure 4 This utility model Figure 3 A cross-sectional view of the cardboard printing device provided in the embodiment in the AA direction;

[0025] Figure 5 This is another structural schematic diagram of the paperboard printing device provided by the embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the roller assembly provided by the utility model;

[0027] Figure numerals: 1. printing platform; 2. conveying mechanism; 3. screen feeding mechanism; 301. screen storage box; 302. transfer mechanism; 3021. cylinder; 3022. push rod; 3023. driving rod; 3024. driving wheel; 3025. clamping cylinder; 4. scraper mechanism; 401. scraper body; 402. connecting piece; 5. material storage platform; 501. block; 502. limit plate; 6. roller assembly; 601. first plate body; 602. second plate body; 603. roller; 7. pulley. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0031] The utility model provides a cardboard printing device with an automatic plate loading structure, which is used to automatically replace the printing screen according to actual use needs during the cardboard printing process, which can simplify manual operation and improve printing efficiency. In order to realize the structural function of the device, the device is provided here including: a printing platform 1, which is used to provide a printing support for receiving the cardboard; a conveying mechanism 2, which is used to convey the cardboard to the printing platform 1 or to convey the cardboard from the printing platform 1, which can be achieved by belt conveying. As a further preference, vacuum adsorption holes can also be opened on the belt surface to stabilize the position of the cardboard to prevent the cardboard from being deflected. When the cardboard is conveyed by a belt, its related structure can refer to Figure 2 As shown, the specific implementation method is not limited here; the screen feeding mechanism 3, the screen feeding mechanism 3 includes a screen storage box 301 and a transfer mechanism 302, wherein the screen storage box 301 is used to store and store different types of printing screens, and its structure can refer to Figure 1As shown, there are multiple hollow layers inside, each of which can be used to place a printing screen. It should be noted that the area of ​​the printing screen is large, so it is preferred to set several protrusions in the hollow layer to support the printing screen. The transfer mechanism 302 is used to place the corresponding printing screen on the cardboard of the printing platform 1 or to place the printing screen on the cardboard in the screen storage box 301. It can be achieved by a transporter or other mechanism, and there is no specific restriction here; the scraper mechanism 4 is set above the printing platform 1, and is used to print the printing paint on the surface of the cardboard through the printing screen. When the above device is working, the cardboard is first transported to the printing platform 1, and then the printing screen is laid on the printing platform 1. After the printing screen is laid, printing is carried out. After printing, the screen is taken away, the screen is replaced and printed again, or the cardboard is directly sent out of the printing platform 1 to complete the printing work.

[0032] The present invention provides a cardboard printing device with an automatic plate loading structure, which specifically provides a structure for automatically replacing a printing screen. Specifically, a lifting mechanism is provided on one side of the printing platform 1, wherein a screen storage box 301 is provided at the output end of the lifting mechanism, and a plurality of hollow placement layers are provided on the screen storage box 301, each of which is used to place a printing screen. When the lifting mechanism is working, the position of the corresponding hollow layer can be lifted to a position close to the surface of the printing platform 1, and the transfer mechanism 302 can place the printing screen in the corresponding placement layer on the printing platform 1. By designing in this way, the transfer mechanism 302 no longer needs to move in the vertical direction, that is, the setting method of the transfer mechanism 302 can be simplified. Specifically, the transfer mechanism 302 can include a cylinder 302. 1 and a push rod 3022 arranged at the end of the cylinder 3021, the push rod 3022 can act on the hollow layer inside the screen storage box 301 to push out the printing screen in the hollow layer, the transfer mechanism 302 also includes a driving rod 3023 rotatably arranged above the printing platform 1, the outer ring of the driving rod 3023 is provided with a driving wheel 3024, the driving wheel 3024 is used to act on the surface of the printing screen so that the printing screen can be moved relative to the printing platform 1, through the above-mentioned setting, when the printing screen needs to be replaced, the driving wheel 3024 can be used to move the old printing screen from the printing platform 1, and at the same time, the push rod 3022 is used to push the printing screen to be replaced in the corresponding hollow layer onto the printing platform 1, and it is moved to a position matching the printing platform 1 via the driving wheel 3024.

[0033] The present invention provides a paperboard printing device with an automatic plate loading structure. Considering that if the old printing screen is discharged from the other side of the printing platform 1, the setting of the mechanism will be more complicated. In order to simplify the structure, the following is referred to here: Figure 1As shown, the push rod 3022 is preferably U-shaped, and the action ends on both sides of the push rod 3022 are respectively installed with clamping cylinders 3025. The two clamping cylinders 3025 are used to clamp the printing screen to put the printing screen back into the hollow layer of the screen storage box 301. Through this arrangement, the printing screen can be recovered to the corresponding hollow layer through the clamping action, avoiding the insufficient action length of the driving wheel 3024 resulting in the printing screen being unable to be fully recovered into the screen storage box 301.

[0034] The present invention provides a paperboard printing device with an automatic plate loading structure. Considering that the coating to be printed on the printing screen needs to be cleaned to a certain extent when the printing screen is replaced, in some embodiments, the paste printing coating can be accumulated in a non-printing position. Specifically, a material storage platform 5 is provided on both sides of the printing platform 1. Figure 5 As shown in the figure, the material storage platform 5 is a block 501 with an opening on one side, and the bottom surface of the opening is the material storage plane. The bottom surfaces of the two material storage platforms 5 are close to the top surface of the printing platform 1, and the opening side of the material storage platform 5 is directed to the printing platform 1. Through the arrangement of the above-mentioned mechanism, the scraper mechanism 4 can further scrape the paint to the opening area of ​​the material storage platform 5 after printing the paint on the printing screen, and realize that there is no waste of excess paint on the printing screen. After replacing the printing screen, the scraper mechanism 4 prints the paint in the opening area on the new printing screen again, so as to realize the printing of various complex patterns and there is no need to consider the problem of paint placement.

[0035] The embodiment of the utility model provides a cardboard printing device with an automatic plate loading structure. In order to prevent the uneven warping of the sides of the printing screen, limit plates 502 are installed on both sides of each material storage platform 5, and the limit plates 502 extend in the direction close to the side of the printing platform 1, wherein the height of the limit plates 502 is higher than the upper surface of the printing platform 1 so as to limit the height of the printing screen passing therethrough.

[0036] The embodiment of the utility model provides a cardboard printing device with an automatic plate loading structure. In order to improve the smoothness of the conveyance of the printing screen on the surface of the printing platform 1, sink grooves are provided on both sides of the printing platform 1 near the storage platform 5. Figure 5 Figure 6As shown, a number of roller assemblies 6 are installed in the two sinks on both sides, each roller assembly 6 is elastically installed on the printing platform 1 and can float elastically in the vertical direction, the rolling direction of the roller assembly 6 is parallel to the conveying direction of the printing screen, and the highest position rolling surface of each roller assembly 6 in the free state is higher than the upper surface of the printing platform 1. During the conveying and moving process of the printing screen, it will be smoothly conveyed through the upper surface of the roller assembly 6, which can prevent jamming during the conveying process. When the scraper mechanism 4 presses the printing screen to print the paint, the roller assembly 6 can automatically retract into the sink, so as to achieve good fitting contact between the plane of the printing screen and the plane of the printing platform 1.

[0037] The present invention provides a paperboard printing device with an automatic plate loading structure, specifically providing a roller assembly 6 with an elastic installation method. Specifically, a plurality of square grooves are provided on the sink groove along the extending direction of the sink groove, and the roller assembly 6 is embedded in the square groove to achieve its fixation. Specifically, the roller assembly 6 includes a first plate body 601 and a second plate body 602, such as Figure 6 As shown, the first plate body 601 is in a block shape and embedded in the interior of the square groove, the second plate body 602 is elastically connected to the first plate body 601, and a roller 603 is rotatably provided on the second plate body 602.

[0038] The utility model provides a cardboard printing device with an automatic plate loading structure, which specifically provides a mechanism for conveying the cardboard to be printed by a belt. Specifically, a printing platform 1 is provided here in a block shape as a whole, and concave surfaces are provided on both sides of the printing platform 1. The positions of the concave surfaces on both sides of the printing platform 1 are rotatably provided with pulleys 7, such as Figure 2 and Figure 4 As shown, the pulley 7 is equipped with a belt for passing through the concave position of the printing platform 1. The belt can be slightly higher than the upper surface of the printing platform 1 in the normal position, but due to its elasticity, it can make the cardboard fit and contact with the surface of the printing platform 1 when the scraper mechanism 4 is printing.

[0039] The embodiment of the utility model provides a cardboard printing device with an automatic plate loading structure. In order to ensure the effect of scraping paint on the printing screen and prevent the scraper mechanism 4 from getting stuck due to matching errors, the scraper mechanism 4 is provided here including a driving mechanism, a scraper body 401 and a connecting member 402, wherein the scraper body 401 is elastically connected to the connecting member 402, and the driving mechanism is used to drive the connecting member 402 to move back and forth so that the scraper body 401 can apply the printing paint on the printing screen. The elastic connection is set to avoid blockage of the matching contact between the front end of the scraper body 401 and the printing screen, which is conducive to realizing the normal printing process. As a refinement and optimization of the first step, no excessive restrictions are made here.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cardboard printing device with an automatic plate loading structure, characterized in that: include: A printing platform (1) for providing a printing support for receiving paperboard; A conveying mechanism (2) for conveying paperboard onto the printing platform (1) or conveying paperboard off the printing platform (1); A screen feeding mechanism (3), the screen feeding mechanism (3) comprising a screen storage box (301) and a transfer mechanism (302), the screen storage box (301) being used to store printing screens of different categories, and the transfer mechanism (302) being used to place a corresponding printing screen on a cardboard of a printing platform (1) or to place a printing screen on a cardboard into the screen storage box (301); The scraper mechanism (4) is arranged above the printing platform (1) and is used to print the printing coating onto the surface of the paperboard through the printing screen.

2. A cardboard printing device with an automatic plate loading structure according to claim 1, characterized in that: A lifting mechanism is provided on one side of the printing platform (1); the screen storage box (301) is provided at the output end of the lifting mechanism; a plurality of hollow placement layers are provided on the screen storage box (301); each hollow placement layer is used to place a printing screen; and the transfer mechanism (302) is capable of placing the printing screen in the corresponding placement layer on the printing platform (1).

3. A cardboard printing device with an automatic plate loading structure according to claim 2, characterized in that: The transfer mechanism (302) comprises a cylinder (3021) and a push rod (3022) arranged at the end of the cylinder (3021), wherein the push rod (3022) can act on the hollow layer inside the screen storage box (301) to push out the printing screen in the hollow layer, and the transfer mechanism (302) further comprises a driving rod (3023) rotatably arranged above the printing platform (1), wherein the outer ring of the driving rod (3023) is provided with a driving wheel (3024), and the driving wheel (3024) is used to act on the surface of the printing screen so that the printing screen can move relative to the printing platform (1).

4. A cardboard printing device with an automatic plate loading structure according to claim 3, characterized in that: The push rod (3022) is U-shaped, and claw cylinders (3025) are respectively installed at the action ends on both sides of the push rod (3022). The two claw cylinders (3025) are used to clamp the printing screen to put the printing screen back into the hollow layer of the screen storage box (301).

5. A cardboard printing device with an automatic plate loading structure according to claim 4, characterized in that: Material storage platforms (5) are provided on both sides of the printing platform (1); the material storage platform (5) is a block (501) with an opening on one side, the bottom surface of the opening being a material storage plane, the bottom surfaces of the two material storage platforms (5) are close to the top surface of the printing platform (1), and the opening side of the material storage platform (5) is arranged to point towards the printing platform (1).

6. A cardboard printing device with an automatic plate loading structure according to claim 5, characterized in that: Limiting plates (502) are installed on both sides of each material storage platform (5), the limiting plates (502) extending in a direction close to a side of the printing platform (1), and the height of the limiting plates (502) is higher than the upper surface of the printing platform (1).

7. A cardboard printing device with an automatic plate loading structure according to claim 6, characterized in that: Both sides of the printing platform (1) are provided with a trough near the material storage platform (5), and a plurality of roller assemblies (6) are installed in the two troughs on both sides. Each of the roller assemblies (6) is elastically installed on the printing platform (1) and can elastically float in the vertical direction. The rolling direction of the roller assembly (6) is parallel to the conveying direction of the printing screen. The highest rolling surface of each roller assembly (6) in a free state is higher than the upper surface of the printing platform (1).

8. A cardboard printing device with an automatic plate loading structure according to claim 7, characterized in that: The sink trough is provided with a plurality of square grooves along the extension direction of the sink trough, the roller assembly (6) is embedded in the square grooves, and the roller assembly (6) comprises a first plate body (601) and a second plate body (602), the first plate body (601) is in a block shape and embedded in the square groove, the second plate body (602) is elastically connected to the first plate body (601), and a roller (603) is rotatably provided on the second plate body (602).

9. A cardboard printing device with an automatic plate loading structure according to claim 8, characterized in that: The printing platform (1) is block-shaped as a whole, and concave surfaces are arranged on both sides of the printing platform (1). Belt pulleys (7) are rotatably arranged at the positions of the concave surfaces on both sides of the printing platform (1), and belts are mounted on the belt pulleys (7) for passing through the concave positions of the printing platform (1).

10. A cardboard printing device with an automatic plate loading structure according to claim 9, characterized in that: The scraper mechanism (4) comprises a driving mechanism, a scraper body (401) and a connecting member (402); the scraper body (401) and the connecting member (402) are elastically connected, and the driving mechanism is used to drive the connecting member (402) to move back and forth so that the scraper body (401) applies printing paint on the printing screen.

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