Double-arm winding structure of printing machine

Abstract

The utility model discloses a double-arm winding structure of a printing machine, which comprises a rack, a driving device, a winding roller and a pair of support arm components rotatably mounted on the rack, each support arm component is formed by assembling a support, a support arm and a pair of rollers, and the support is connected with the rack; a positioning plate is movably installed on the portion, below the pair of supporting arm assemblies, of the rack through a first air cylinder, limiting plates are movably installed on the two sides of the rack through second air cylinders respectively, and the limiting plates are connected with the supporting arms. According to the utility model, the bracket, the support arm and the roller are assembled to form the corbel assembly, so that the corbel assembly plays a role in supporting the winding roller in the winding process and is used for sharing partial weight of the winding roller and materials on the winding roller and reducing the load of parts such as a winding roller bearing and the like. And after winding is completed, the supporting arm assembly is matched with the multiple pneumatic execution elements through the T-shaped rod to rotate and be folded, interference and collision between the winding roller and the supporting arm assembly during winding station switching are avoided, the printing machine can continuously run, and then the printing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of printing machines, and particularly to a double-arm rewinding structure of a printing machine. Background Technique

[0002] In the printing industry, the rewinding device of a printing machine plays a key role in the efficiency and quality of the entire printing process.

[0003] During the rewinding process, as the printing material on the rewinding roller continuously increases, the weight of the rewinding roller significantly increases, which causes huge loads on components such as the rewinding roller bearings. Being in this high-load state for a long time not only accelerates the wear rate of components such as the rewinding roller bearings, significantly shortens the service life of these components, but also increases the equipment maintenance cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double-arm rewinding structure of a printing machine to solve the problem of large load on the rewinding roller existing in the rewinding device of a conventional printing machine as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A double-arm rewinding structure of a printing machine, including a frame, a driving device, a rewinding roller, and a pair of support arm assemblies rotatably installed on the frame. The support arm assembly is assembled by a bracket, a support arm, and a pair of rollers. The bracket is connected to the frame. The frame is movably installed with a positioning plate by a first cylinder below a pair of the support arm assemblies. The two sides of the frame are respectively movably installed with limit plates by second cylinders. The limit plates are connected to the support arms.

[0006] Preferably, the bracket is rotatably installed on one side of the frame through a rotating shaft. One end of the support arm is rotatably connected to the bracket, and the other end is provided with a U-shaped structure for accommodating the roller. A sliding sleeve is rotatably sleeved at the bottom of the bracket. A pair of sliding holes are provided on the positioning plate, and the sliding sleeve is slidably installed in the sliding holes.

[0007] Preferably, the output end of the second cylinder is fixedly installed with a limit plate. An arc-shaped hole centered on the rotating shaft is provided on the limit plate. A T-shaped rod is slidably installed in the arc-shaped hole. A pair of extension wings are integrally formed at one end of the support arm. Guide holes are provided on the extension wings, and the end parts of the T-shaped rod respectively penetrate through the guide holes of the pair of extension wings.

[0008] Preferably, a positioning pin is provided on the side wall of the frame below a pair of the support arm assemblies. A guide hole for accommodating the positioning pin is provided at the central position of the positioning plate.

[0009] Preferably, the sliding holes are inclined.

[0010] Preferably, the corners of the bracket and the support arm are smoothly transitioned with rounded corners.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The present utility model forms a support arm assembly by assembling a bracket, a support arm and a roller, which plays a supporting role for the winding roller during the winding process, is used to share part of the weight of the winding roller and the material thereon, and reduces the load on components such as the bearings of the winding roller. After winding, the support arm assembly rotates and folds through the cooperation of the T-shaped rod and multiple pneumatic actuators, avoiding interference and collision between the winding roller and the support arm assembly during the switching of the winding station, enabling the printing machine to operate continuously, and thus improving the printing efficiency. Description of the Drawings

[0013] Figure 1 is a schematic three-dimensional structure diagram of the first state of the present utility model;

[0014] Figure 2 is of the present utility model Figure 1 amplified structure diagram at A

[0015] Figure 3 is a schematic three-dimensional structure diagram of the second state of the present utility model;

[0016] Figure 4 is of the present utility model Figure 2 amplified partial three-dimensional structure diagram;

[0017] Figure 5 is a schematic sectional plane structure diagram of the present utility model;

[0018] Figure 6 is a schematic three-dimensional structure diagram of the support arm assembly of the present utility model;

[0019] Figure 7 is a disassembled schematic three-dimensional structure diagram of the support arm assembly of the present utility model.

[0020] In the figure: 1, frame; 2, driving device; 3, winding roller; 4, bracket; 5, support arm; 6, roller; 7, T-shaped rod; 8, first cylinder; 9, positioning plate; 10, second cylinder; 11, limiting plate; 12, sliding sleeve; 13, extension wing. Detailed Embodiments

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a double-arm winding structure of a printing press, which includes a frame 1, a driving device 2, a winding roller 3 and a pair of support arm assemblies rotatably installed on the frame 1. The driving device 2 is equipped with an accurate tension control system to keep the material under appropriate tension during the winding process, ensuring the winding quality. During the printing process, the driving device 2 cooperates with the winding roller 3 to continuously wind up the printed materials such as paper and film. The support arm assembly is assembled by a bracket 4, a support arm 5 and a pair of rollers 6. The corners of the bracket 4 and the support arm 5 are smoothly transitioned with rounded corners. The advantage of this setting is to avoid sharp corners from scratching the skin. The bracket 4 is connected to the frame 1. A positioning plate 9 is movably installed under the frame 1 at the position of a pair of support arm assemblies through a first cylinder 8. The positioning plate 9 is an L-shaped structure. A positioning pin is provided on the side wall of the frame 1 under the position of a pair of support arm assemblies. A guiding hole for accommodating the positioning pin is provided at the central position of the positioning plate 9. The purpose of this setting is to avoid the positioning plate 9 from tilting during the lifting process. A limiting plate 11 is movably installed on both sides of the frame 1 through a second cylinder 10 respectively. The limiting plate 11 is connected to the support arm 5. During the process of winding the printing material, the weight of the winding roller 3 will continuously increase. By contacting the winding roller 3 with the rollers 6 on the support arm 5, part of the weight of the winding roller 3 and the material thereon can be shared, reducing the load on components such as the bearings of the winding roller 3, helping to extend the service life of these components, reducing the maintenance cost of the equipment, and at the same time helping the winding roller 3 to maintain a better balance state during rotation, thereby ensuring the winding quality.

[0023] Please refer to Figures 3 - 7, the bracket 4 is rotatably mounted on one side of the frame 1 through a rotating shaft. One end of the support arm 5 is rotatably connected to the bracket 4, and the other end is provided with a U-shaped structure for accommodating the roller 6. A sliding sleeve 12 is rotatably sleeved at the bottom of the bracket 4. A pair of sliding holes are provided on the positioning plate 9, and the sliding sleeve 12 is slidably mounted in the sliding holes. The setting of the sliding sleeve 12 can reduce the friction with the positioning plate 9. The sliding holes are inclined, and the pair of sliding holes are arranged in an eight-shaped manner. The purpose of this setting is to facilitate the relative rotation of the pair of brackets 4 when the positioning plate 9 is lifted or lowered. The output end of the second cylinder 10 is fixedly installed with a limiting plate 11. An arc-shaped hole centered on the rotating shaft is provided on the limiting plate 11, and a T-shaped rod 7 is slidably mounted in the arc-shaped hole. One end of the support arm 5 is integrally formed with a pair of extension wings 13. Guide holes are provided on the extension wings 13, and the end portions of the T-shaped rod 7 respectively penetrate through the guide holes of the pair of extension wings 13. After the winding roller 3 finishes winding, control the output end of the first cylinder 8 to drive the positioning plate 9 to move downward. The positioning plate 9 cooperates with the sliding sleeve 12 to drive the pair of brackets 4 to rotate downward around the axis respectively. When rotating, the T-shaped rod 7 slides in the arc-shaped hole of the limiting plate 11. Then control the output ends of the two second cylinders 10 to drive the limiting plate 11 to extend out. The limiting plate 11 drives the pair of support arms 5 to rotate and fold around the bracket 4 through the T-shaped rod 7, reserving space for the driving device 2 to drive the winding roller 3 to flip, so that the winding roller 3 can smoothly flip from one working station to another working station, realizing the switching of double working stations, ensuring the continuity of the winding work of the printing machine, and improving the production efficiency.

[0024] In this application, the bracket 4, the support arm 5 and the roller 6 are assembled to form a support arm assembly, which plays a supporting role for the winding roller during the winding process, is used to share part of the weight of the winding roller 3 and the materials thereon, and reduces the load on components such as the bearings of the winding roller 3. After winding is completed, the support arm assembly rotates and folds through the cooperation of the T-shaped rod 7 and multiple pneumatic actuators, avoiding interference and collision between the winding roller 3 and the support arm assembly during the switching of the winding working stations, enabling the printing machine to operate continuously, and thus improving the printing efficiency.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A double-arm winding structure for a printing press, characterized in that: The invention comprises a frame (1), a driving device (2), a winding roller (3) and a pair of supporting arm assemblies rotatably mounted on the frame (1); the supporting arm assembly is composed of a bracket (4), a supporting arm (5) and a pair of rollers (6); the bracket (4) is connected to the frame (1); a positioning plate (9) is movably mounted on the frame (1) below the pair of supporting arm assemblies via a first cylinder (8); limiting plates (11) are movably mounted on both sides of the frame (1) via a second cylinder (10); and the limiting plates (11) are connected to the supporting arm (5).

2. A printing press double-arm winding structure according to claim 1, characterized in that: The bracket (4) is rotatably mounted on one side of the frame (1) via a rotating shaft; one end of the support arm (5) is rotatably connected to the bracket (4); the other end is provided with a U-shaped structure for accommodating the roller (6); a sliding sleeve (12) is rotatably sleeved at the bottom of the bracket (4); a pair of sliding holes are provided on the positioning plate (9), and the sliding sleeve (12) is slidably mounted in the sliding holes.

3. A printing press double-arm winding structure according to claim 2, characterized in that: A limit plate (11) is fixedly mounted on the output end of the second cylinder (10), the limit plate (11) being provided with an arc-shaped hole with the rotating shaft as the center, a T-shaped rod (7) being slidably mounted in the arc-shaped hole, a pair of extension wings (13) being integrally formed at one end of the support arm (5), the extension wings (13) being provided with guide holes, and the ends of the T-shaped rod (7) respectively pass through the guide holes of the pair of extension wings (13).

4. The double-arm winding structure of a printing press according to claim 1, characterized in that: A locating pin is provided on the side wall of the frame (1) below the pair of support arm assemblies, and a guide hole for accommodating the locating pin is provided at the central position of the locating plate (9).

5. The double-arm winding structure of a printing press according to claim 2, characterized in that: The sliding hole is arranged obliquely.

6. The double-arm winding structure of a printing press according to claim 1, characterized in that: The corner connections between the support (4) and the support arm (5) are all chamfered to provide a smooth transition.

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