Printing roller of novel packaging printing machine

Abstract

The utility model relates to the technical field of printing rollers, in particular to a novel printing roller of a packaging printer, which comprises a driving roller, a printing roller body is connected to the middle of the outer surface of the driving roller, a left cover plate is movably connected to the left of the outer surface of the driving roller in a penetrating manner, and a right cover plate is movably connected to the right of the outer surface of the driving roller in a penetrating manner. According to the novel printing roller of the packaging printing machine, the supporting plate, the movable ring and the limiting nut are arranged on the outer surface of the transmission roller, after the printing roller body is connected to the transmission roller in a sleeved mode, the limiting nut is rotated through an external tool, the limiting nut pushes the movable ring to move towards the supporting plate, and the printing roller body moves towards the supporting plate along with the movable ring. The angles of the three movable top plates installed on the outer surface of the movable ring are adjusted at the same time under supporting of the supporting plates, the three movable top plates can support the inner wall of the printing roller body after being unfolded, and therefore the strength of the printing roller body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing rollers, in particular to a new printing roller of a packaging printing machine. Background Art

[0002] The printing roller is a commonly used device in the printing industry, used to transfer ink from the printing plate to the printed material. Printing rollers are typically made of metal or rubber and come in various diameters, lengths, and hardnesses to suit different printing requirements. The right printing roller is crucial for improving printing quality, efficiency, and stability. Regular cleaning, maintenance, and replacement of damaged parts are also crucial to ensure proper operation and extend the life of the equipment. Existing printing rollers often have a hollow structure between the printing roller and the drive shaft. After extended printing, the hollow center of the printing roller, lacking support, can easily deform, causing the roller to become scrapped and shortening its service life. Therefore, we have introduced a new printing roller for packaging printing presses. Utility Model Content

[0003] The main purpose of the utility model is to provide a new printing roller for a packaging printing machine, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A new printing roller for a packaging printing machine includes a transmission roller, wherein the middle portion of the outer surface of the transmission roller is connected to a printing roller body, the left portion of the outer surface of the transmission roller is movably connected to a left cover plate, and the right portion of the outer surface of the transmission roller is movably connected to a right cover plate.

[0006] Preferably, two limiting grooves are provided on the left and right ends of the transmission roller, two support plates are fixedly connected to the middle of the outer surface of the transmission roller, the left and right outer surfaces of the transmission roller are both movably connected with movable rings, the left and right outer surfaces of the transmission roller are both threadedly connected with limiting nuts, the two support plates are both located between the two movable rings, and the two movable rings are both located between the two limiting nuts.

[0007] Preferably, three grooves are formed on the outer surfaces of the two movable rings, and movable top plates are movably connected to the six grooves via rotating shafts. The ends of the six movable top plates away from the two movable rings are movably connected to rollers via rotating shafts.

[0008] Preferably, the middle portions of the two movable rings are hollow structures, and the six rollers are in contact with the inner wall of the printing roller body.

[0009] Preferably, the right end of the right cover plate and the right end of the left cover plate are both provided with circular grooves, the front and rear inner walls of the two circular grooves are fixedly connected with limiting sliders, and the right end of the right cover plate and the left end of the left cover plate are both movably connected with three bolts.

[0010] Preferably, the left end and the right end of the printing roller body are fixedly connected with three connecting pieces, and threaded holes are formed in the six connecting pieces.

[0011] Preferably, the three bolts on the right end of the right cover plate are respectively threadedly connected to the three connecting pieces on the right end of the printing roller body.

[0012] Preferably, the two limiting sliding blocks are respectively slidably connected to the two limiting sliding grooves at the right end of the transmission roller.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a support plate, a movable ring and a limit nut are provided on the outer surface of the transmission roller. After the printing roller body is sleeved on the transmission roller, the limit nut is rotated by an external tool, so that the limit nut pushes the movable ring to move toward the support plate. As the movable ring moves toward the support plate, the three movable top plates installed on the outer surface of the movable ring are adjusted in angle at the same time under the support of the support plate. After the three movable top plates are extended, they support the inner wall of the printing roller body, thereby improving the strength of the printing roller body, avoiding deformation and damage of the printing roller body after long-term use, and improving the service life of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a printing roller of a new packaging printing machine of the present utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the transmission roller of the printing roller of a new packaging printing machine of the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the right cover plate of the printing roller of a new packaging printing machine of the utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of a printing roller body of a new packaging printing machine according to the utility model;

[0019] Figure 5 This is a schematic diagram of the overall structure of the movable ring of the printing roller of a new packaging printing machine of the utility model.

[0020] In the figure: 1. Drive roller; 2. Right cover; 3. Printing roller body; 4. Left cover; 11. Support plate; 12. Movable ring; 13. Limit nut; 14. Limit slide; 21. Circular groove; 22. Limit slider; 23. Bolt; 31. Threaded hole; 32. Connector; 121. Groove; 122. Movable top plate; 123. Roller. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] A new printing roller for a packaging printing machine includes a transmission roller 1, a printing roller body 3 is connected to the middle of the outer surface of the transmission roller 1, a left cover plate 4 is movably connected to the left outer surface of the transmission roller 1, and a right cover plate 2 is movably connected to the right outer surface of the transmission roller 1.

[0026] In this embodiment, two limiting sliding grooves 14 are formed on the left and right ends of the transmission roller 1. Two support plates 11 are fixedly connected to the middle of the outer surface of the transmission roller 1. The left and right outer surfaces of the transmission roller 1 are movably connected with movable rings 12. The left and right outer surfaces of the transmission roller 1 are threadedly connected to limiting nuts 13. The two support plates 11 are located between the two movable rings 12, and the two movable rings 12 are located between the two limiting nuts 13.

[0027] The outer surfaces of the two movable rings 12 are each provided with three grooves 121, and the six grooves 121 are movably connected to movable top plates 122 through rotating shafts, and the six movable top plates 122 are movably connected to rollers 123 at one end away from the two movable rings 12 through rotating shafts; the middle parts of the two movable rings 12 are hollow structures, and the six rollers 123 are in contact with the inner wall of the printing roller body 3; the right end of the right cover plate 2 and the right end of the left cover plate 4 are each provided with a circular groove 21, and the front and rear parts of the inner walls of the two circular grooves 21 are fixedly connected to the limiting sliders 22, and the right end of the right cover plate 2 and the left end of the left cover plate 4 are movably connected with three bolts 23; the left and right ends of the printing roller body 3 are fixedly connected to three connecting pieces 32, and threaded holes 31 are provided in the six connecting pieces 32; the three bolts 23 at the right end of the right cover plate 2 are respectively threadedly connected to the three connecting pieces 32 at the right end of the printing roller body 3; the two limiting sliders 22 are respectively slidably connected to the two limiting slide grooves 14 at the right end of the transmission roller 1.

[0028] Through the above solution: rotating the limit nut 13, the limit nut 13 pushes the movable ring 12 to move toward the support plate 11, and the three movable top plates 122 on the movable ring 12 are adjusted in angle at the same time to support the inner wall of the printing roller body 3, thereby improving the strength of the printing roller body 3.

[0029] It should be noted that the present invention describes a novel printing roller for a packaging printing press. By disposing a support plate 11, a movable ring 12, and a retaining nut 13 on the outer surface of a drive roller 1, the printing roller body 3 is precisely fitted onto the drive roller 1. When the operator rotates the retaining nut 13 using an external tool, this action gradually advances the retaining nut 13 along its threads, thereby pushing the movable ring 12 toward the support plate 11. As the distance between the movable ring 12 and the support plate 11 decreases, the three movable top plates 122 movably connected to the outer surface of the movable ring 12 begin to change position. With the stable support provided by the support plate 11, the three movable top plates 122 adjust their angles. This allows each movable top plate 122 to evenly and effectively expand outward when the movable ring 12 is compressed, forming close contact with the inner wall of the printing roller body 3. This expansion of the three movable top plates 122 not only increases their contact area with the inner wall of the printing roller body 3 but also significantly enhances the overall strength of the printing roller body 3 through distributed support force. This strengthening effect is crucial for resisting stress concentration and fatigue damage that may occur during long-term use, thereby effectively avoiding deformation or damage of the printing roller body 3 due to continuous stress.

[0030] 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 new printing roller for a packaging printing machine, comprising a transmission roller (1), characterized in that: The middle portion of the outer surface of the transmission roller (1) is connected to a printing roller body (3), the left portion of the outer surface of the transmission roller (1) is movably connected to a left cover plate (4), and the right portion of the outer surface of the transmission roller (1) is movably connected to a right cover plate (2). The transmission roller (1) has two limiting sliding grooves (14) at its left and right ends, and two support plates (11) are fixedly connected to the middle of the outer surface of the transmission roller (1). The left and right outer surfaces of the transmission roller (1) are both movably connected with movable rings (12). The left and right outer surfaces of the transmission roller (1) are both threadedly connected with limiting nuts (13). The two support plates (11) are both located between the two movable rings (12), and the two movable rings (12) are both located between the two limiting nuts (13). The outer surfaces of the two movable rings (12) are each provided with three grooves (121), and the six grooves (121) are each movably connected to a movable top plate (122) via a rotating shaft. The ends of the six movable top plates (122) away from the two movable rings (12) are each movably connected to a roller (123) via a rotating shaft.

2. The printing roller of the new packaging printing machine according to claim 1 is characterized in that: The middle parts of the two movable rings (12) are both hollow structures, and the six rollers (123) are all in contact with the inner wall of the printing roller body (3).

3. The printing roller of the new packaging printing machine according to claim 1 is characterized in that: The right end of the right cover plate (2) and the right end of the left cover plate (4) are both provided with a circular groove (21), and the front and rear inner wall portions of the two circular grooves (21) are both fixedly connected to a limiting slider (22), and the right end of the right cover plate (2) and the left end of the left cover plate (4) are both movably connected with three bolts (23).

4. The printing roller of a new packaging printing machine according to claim 1 is characterized in that: The left and right ends of the printing roller body (3) are fixedly connected to three connecting pieces (32), and threaded holes (31) are formed in the six connecting pieces (32).

5. The printing roller of a new packaging printing machine according to claim 1 is characterized in that: The three bolts (23) at the right end of the right cover plate (2) are respectively threadedly connected to the three connecting pieces (32) at the right end of the printing roller body (3).

6. The printing roller of the new packaging printing machine according to claim 3 is characterized in that: The two limiting slide blocks (22) are respectively slidably connected to the two limiting slide grooves (14) at the right end of the transmission roller (1).

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