A printing machine for packaging and color printing

Abstract

The utility model discloses a kind of winding devices of printing machine for packing color printing, including machine body, the side fixed connection of machine body has support, the side mounting of support away from machine body has winding roller, the both ends of support are all fixedly connected with vertical plate, the surface of vertical plate is hingedly connected with swing bar by pin shaft, the side fixed connection of swing bar away from vertical plate has support roller, the surface of two support rollers and winding roller is hung in order to the wrapping paper extending to machine body outside, the surface fixed connection of support has connecting frame, the inside of connecting frame is hingedly connected with bidirectional screw rod by bearing.The utility model forms curved paper path by two support rollers, significantly increase the distance of printing machine outlet to winding roller, gain time for ink drying, reduce printing and dyeing problem caused by not drying from source, the pin shaft hingedly connected of swing bar and vertical plate allows support roller to swing slightly, automatically buffer paper tension fluctuation, avoid paper tearing deformation or breakage.

Description

Technical Field

[0001] This utility model relates to the field of packaging color printing technology, specifically a winding device for a printing press used in packaging color printing. Background Technology

[0002] Packaging color printing refers to the process and technology of color printing on packaging materials. It is a crucial part of modern packaging design, directly affecting the product's visual appeal, brand image communication, and consumers' purchasing decisions.

[0003] For example, patent application number 202220838488.5 published on the China Patent Network, entitled "A Printing Machine for Easy Rewinding," includes a printing machine body. A second support rod is symmetrically fixedly connected to one side of the printing machine body. A servo motor is fixedly mounted on one side of one of the second support rods. The output shaft of the servo motor has a fixed hole, and a take-up roller is threaded into the fixed hole. A rotating groove is formed on the top of the other second support rod corresponding to the take-up roller. The servo motor drives the take-up roller to perform the winding operation. Rotating the fastening bolt on the fixed block disengages the fastening bolt from the movable plate, thereby pulling the movable plate outward. This causes the connecting block and the limiting rod to move, disengaging the limiting rod from the limiting hole on the take-up roller. Rotating the take-up roller disengages it from the fixed hole, facilitating its removal. The printed material is then dried by starting a dryer, increasing the drying speed and facilitating rewinding.

[0004] The existing printing press has a relatively simple structure for the winding section, which mainly relies on rotating winding rollers to wind and wind the packaging paper. However, the distance between the existing winding rollers and the printing press is relatively short. During the winding and winding process, the printed packaging paper is prone to staining due to not being dry, which affects the pass rate of the packaging paper.

[0005] Therefore, it is necessary to redesign and modify the winding device of the packaging color printing press. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a winding device for a printing press for packaging color printing, which has the advantage of improving the drying efficiency of packaging paper. It solves the problem that the structure of the winding part of the printing press is relatively simple, mainly relying on the rotating winding roller to wind and wind the packaging paper. However, the existing winding roller has a short distance between it and the printing press, and the printed packaging paper is prone to staining during the winding and winding process due to not being dried, which affects the quality rate of the packaging paper.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a winding device for a printing press for packaging color printing, comprising a machine body; A bracket is fixedly connected to one side of the machine body. A take-up roller is installed on the side of the bracket away from the machine body. Upright plates are fixedly connected to both ends of the bracket. A swing rod is movably connected to the surface of the upright plate through a pin. A support roller is fixedly connected to the side of the swing rod away from the upright plate. The packaging paper extending to the outside of the machine body is sequentially hung on the surfaces of the two support rollers and the take-up roller.

[0008] In a preferred embodiment of this invention, a connecting frame is fixedly connected to the surface of the bracket, and a bidirectional screw is movably connected to the inside of the connecting frame via a bearing. Both sides of the surface of the bidirectional screw are threaded with threaded sleeves. A sleeve plate is fixedly connected to the side of the swing rod near the bracket, and a sliding rod located inside the sleeve plate is fixedly connected to the surface of the threaded sleeve. The sliding rod is slidably connected to the sleeve plate.

[0009] As a preferred embodiment of this invention, a drive motor is fixedly connected to the surface of the bracket, and the output end of the drive motor passes through the bracket and is connected to the take-up roller through a coupling.

[0010] As a preferred embodiment of this invention, an extension plate is fixedly connected to the surface of the bracket, and fan blades are mounted on the surface of the extension plate. The fan blades are capable of rotating and guiding external airflow.

[0011] In a preferred embodiment of this invention, pulleys are fixedly connected to both the surface of the fan blades and the output end of the drive motor. A belt is fitted onto the surface of the pulleys, and the drive motor can drive the fan blades to rotate via the pulleys and the belt.

[0012] In a preferred embodiment of this invention, the top end of the bidirectional screw extends through to the top of the connecting frame, and a rotating wheel is fixedly connected to the top end of the bidirectional screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model forms a curved paper path by using two support rollers, which significantly increases the distance from the printing press exit to the take-up roller, allowing time for ink drying and reducing printing and dyeing problems caused by undried ink from the source. The pivot pin connection between the swing arm and the upright plate allows the support roller to swing slightly, automatically buffering paper tension fluctuations and preventing paper from being pulled, deformed, or broken.

[0014] 2. This utility model uses a bidirectional screw to drive the screw sleeve to move synchronously in opposite directions, and uses a slide bar to push the sleeve plate to realize the linkage angle adjustment of the two swing arms. Users can precisely control the position of the support roller and flexibly adapt to the drying path length required for different printing speeds or paper types.

[0015] 3. This utility model reduces intermediate links in the transmission chain by using a direct drive method with a coupling, thereby reducing energy loss, ensuring stable winding torque, and avoiding the slippage risk of traditional gear or chain drives.

[0016] 4. This utility model guides airflow through fan blades to directly blow on the paper surface, accelerating ink evaporation and forming a dual drying mechanism with the extended path, which greatly reduces the risk of printing and dyeing.

[0017] 5. This utility model utilizes the same drive motor to drive the winding and fan blades, eliminating the need for an additional power source, thus reducing equipment energy consumption and complexity. The fan blade speed and winding speed are automatically synchronized, airflow is enhanced during printing acceleration, and drying efficiency is dynamically matched to the production rhythm.

[0018] 6. This utility model provides a labor-saving operating fulcrum through the rotating wheel, allowing workers to quickly and manually adjust the bidirectional screw without tools, thus significantly improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a right-side view of a partial structure of the present invention; Figure 4 This is a schematic diagram of the left-side separation of a partial structure of this utility model.

[0020] In the diagram: 1. Machine body; 2. Support frame; 3. Take-up roller; 4. Vertical plate; 5. Swing rod; 6. Support roller; 7. Connecting frame; 8. Bidirectional screw; 9. Screw sleeve; 10. Sleeve plate; 11. Slide rod; 12. Drive motor; 13. Extension plate; 14. Fan blade; 15. Pulley; 16. Belt; 17. Rotary wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, the present invention provides a winding device for a printing press for color printing of packaging, comprising a machine body 1; A bracket 2 is fixedly connected to one side of the machine body 1. A take-up roller 3 is installed on the side of the bracket 2 away from the machine body 1. Vertical plates 4 are fixedly connected to both ends of the bracket 2. A swing rod 5 is movably connected to the surface of the vertical plate 4 through a pin. A support roller 6 is fixedly connected to the side of the swing rod 5 away from the vertical plate 4. The packaging paper extending to the outside of the machine body 1 is hung on the surfaces of the two support rollers 6 and the take-up roller 3 in sequence.

[0023] refer to Figure 4A connecting frame 7 is fixedly connected to the surface of the bracket 2. A bidirectional screw 8 is movably connected to the inside of the connecting frame 7 through a bearing. Both sides of the surface of the bidirectional screw 8 are threaded with a screw sleeve 9. A sleeve plate 10 is fixedly connected to the side of the swing rod 5 near the bracket 2. A sliding rod 11 located inside the sleeve plate 10 is fixedly connected to the surface of the screw sleeve 9. The sliding rod 11 is slidably connected to the sleeve plate 10.

[0024] As a technical optimization of this utility model, the screw sleeve 9 is driven to move synchronously in opposite directions by the bidirectional screw 8, and the sleeve plate 10 is pushed by the slide rod 11 to realize the linkage angle adjustment of the two swing rods 5. The user can precisely control the position of the support roller 6 and flexibly adapt to the drying path length required by different printing speeds or paper types.

[0025] refer to Figure 4 A drive motor 12 is fixedly connected to the surface of the bracket 2. The output end of the drive motor 12 passes through the bracket 2 and is connected to the take-up roller 3 through a coupling.

[0026] As a technical optimization of this utility model, the direct drive method using a coupling reduces intermediate links in the transmission chain, lowers energy loss, ensures stable winding torque, and avoids the risk of slippage associated with traditional gear or chain drives.

[0027] refer to Figure 4 An extension plate 13 is fixedly connected to the surface of the bracket 2, and a fan blade 14 is installed on the surface of the extension plate 13. The fan blade 14 can rotate and guide the external airflow.

[0028] As a technical optimization of this utility model, the airflow is guided by the fan blade 14 to directly blow on the paper surface, accelerating ink evaporation and forming a dual drying mechanism with the extended path, which greatly reduces the risk of printing and dyeing.

[0029] refer to Figure 4 Both the surface of the fan blade 14 and the output end of the drive motor 12 are fixedly connected to pulleys 15. A belt 16 is sleeved on the surface of the pulley 15, and the drive motor 12 can drive the fan blade 14 to rotate through the pulley 15 and the belt 16.

[0030] As a technical optimization of this utility model, by using the same drive motor 12 to drive the winding and fan blades 14, no additional power source is required, reducing equipment energy consumption and complexity. The rotation speed of the fan blades 14 is automatically synchronized with the winding speed, the airflow is enhanced when printing is accelerated, and the drying efficiency is dynamically matched with the production rhythm.

[0031] refer to Figure 2 The top end of the bidirectional screw 8 extends through to the top of the connecting frame 7, and a rotating wheel 17 is fixedly connected to the top end of the bidirectional screw 8.

[0032] As a technical optimization of this utility model, the rotary wheel 17 provides a labor-saving operating fulcrum, allowing workers to quickly and manually adjust the bidirectional screw 8 without tools, thus significantly improving production efficiency.

[0033] The working principle and usage process of this utility model are as follows: A bracket 2 is fixed on one side of the printing press body 1. A take-up roller 3 is installed at the far end of the bracket 2. Vertical plates 4 are fixed at both ends of the bracket 2. The vertical plates 4 are movably connected to the swing rod 5 through pins. A support roller 6 is fixed at the end of the swing rod 5. The packaging paper output from the printing press passes around the two support rollers 6 in sequence and then winds onto the take-up roller 3, significantly extending the paper path and saving time for ink drying. The drive motor 12 on the bracket 2 drives the take-up roller 3 to rotate for winding. At the same time, the fan blades 14 on the extension plate 13 are driven to rotate through the pulley 15 and belt 16. The airflow guided by 14 acts directly on the surface of the packaging paper during its movement, accelerating ink drying. In addition, the connecting frame 7 on the support 2 is equipped with a bidirectional screw 8. When the user rotates the wheel 17 at the top of the screw, the screw sleeve 9 on the screw can drive the slide bar 11 to move, thereby pushing or pulling the sleeve plate 10 fixed to the swing arm 5. This allows for flexible adjustment of the positions of the two support rollers 6, changing the length and tension of the paper's suspension path to adapt to different printing speeds and drying requirements. Through the design of extended path, active airflow drying, and adjustable path, ink staining is effectively avoided, and the finished product qualification rate of the packaging paper is improved.

[0034] In summary, the winding device of this packaging color printing press forms a curved paper path through two support rollers 6, which significantly increases the distance from the printing press exit to the winding roller 3, allowing time for ink drying and reducing printing and dyeing problems caused by undried ink from the source. The pin connection between the swing arm 5 and the vertical plate 4 allows the support roller 6 to swing slightly, automatically buffering paper tension fluctuations and preventing paper from being pulled, deformed, or broken.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding device for a printing press for packaging color printing, comprising a machine body (1); Its features are: A bracket (2) is fixedly connected to one side of the machine body (1). A take-up roller (3) is installed on the side of the bracket (2) away from the machine body (1). A vertical plate (4) is fixedly connected to both ends of the bracket (2). A swing rod (5) is movably connected to the surface of the vertical plate (4) through a pin. A support roller (6) is fixedly connected to the side of the swing rod (5) away from the vertical plate (4). The packaging paper extending to the outside of the machine body (1) is hung on the surfaces of the two support rollers (6) and the take-up roller (3) in sequence.

2. The winding device of a printing press for packaging color printing according to claim 1, characterized in that: A connecting frame (7) is fixedly connected to the surface of the bracket (2). A bidirectional screw (8) is movably connected to the inside of the connecting frame (7) through a bearing. Both sides of the surface of the bidirectional screw (8) are threaded with a screw sleeve (9). A sleeve plate (10) is fixedly connected to the side of the swing rod (5) near the bracket (2). A sliding rod (11) located inside the sleeve plate (10) is fixedly connected to the surface of the screw sleeve (9). The sliding rod (11) is slidably connected to the sleeve plate (10).

3. The winding device of a printing press for color printing of packaging according to claim 2, characterized in that: A drive motor (12) is fixedly connected to the surface of the bracket (2). The output end of the drive motor (12) passes through the bracket (2) and is connected to the take-up roller (3) through a coupling.

4. The winding device of a printing press for color printing of packaging according to claim 3, characterized in that: An extension plate (13) is fixedly connected to the surface of the bracket (2), and a fan blade (14) is installed on the surface of the extension plate (13). The fan blade (14) can rotate and guide the external airflow.

5. The winding device of a printing press for color printing of packaging according to claim 4, characterized in that: The surface of the fan blade (14) and the output end of the drive motor (12) are both fixedly connected to pulleys (15). A belt (16) is fitted on the surface of the pulley (15). The drive motor (12) can drive the fan blade (14) to rotate through the pulley (15) and the belt (16).

6. The winding device of a printing press for color printing of packaging according to claim 2, characterized in that: The top end of the bidirectional screw (8) extends through to the top of the connecting frame (7), and a rotating wheel (17) is fixedly connected to the top end of the bidirectional screw (8).

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