Quick material roll replacing structure for plastic flexible package photogravure press

Abstract

The utility model relates to the technical field of photogravure presses, and discloses a material roll quick replacement structure for a plastic flexible package photogravure press, which comprises a base, support columns are fixedly connected to two sides of one end of the upper surface of the base, a fixing plate is fixedly connected to the bottom ends of the outer side walls of the support columns, and a material roll frame is arranged on the inner side of the fixing plate. The bottom end of the material roll frame is rotationally connected with the fixing plate, a second servo motor is detachably arranged at the upper end of one side of the material roll frame in an embedded mode, and the power output end of the second servo motor is fixedly connected with a first limiting clamping head. The first limiting clamping head and the second limiting clamping head are matched to achieve accurate and rapid disassembly and assembly of the material roll, complex tools are not needed, the installation time and errors can be reduced, the material roll frame can be controlled to automatically ascend and descend to assist material roll replacement, manual carrying and lifting of the material roll are avoided, the material roll replacement time is effectively shortened, and the material roll replacement efficiency is improved. And the production efficiency and the equipment practicability of the plastic flexible package photogravure press are improved.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing machine technology, specifically to a quick roll change structure for a gravure printing machine for plastic flexible packaging. Background Technology

[0002] The gravure printing machine for flexible plastic packaging consists of unwinding, printing, drying, and rewinding devices, as well as a tension control system. The unwinding device stably releases the material roll and controls the tension. The printing unit uses gravure printing rollers and a color matching system to achieve multi-color and exquisite printing. The drying system uses various methods to quickly dry and cure the ink. The rewinding device neatly rewinds the finished product. The tension control system precisely adjusts the film tension throughout the entire process. It has advantages such as high precision, vibrant colors, and high speed, and plays an important role in flexible packaging printing in many industries, meeting diverse needs.

[0003] Existing material rolls for gravure printing machines used for flexible plastic packaging are generally fixed to the material roll rack with bolts, which requires disassembly tools for both installation and disassembly, making the process extremely cumbersome. Furthermore, the material rolls are usually located at the top of the rack, requiring handling and lifting during installation, which consumes a lot of manpower and time, seriously affecting the production efficiency of the printing machine. To address this, we propose a quick material roll replacement structure for gravure printing machines used for flexible plastic packaging. Utility Model Content

[0004] The main objective of this invention is to provide a quick roll change structure for a gravure printing machine for flexible plastic packaging, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick roll change structure for a plastic flexible packaging gravure printing machine, comprising a base, with support columns fixedly connected to both sides of one end of the upper surface of the base, a fixing plate fixedly connected to the bottom end of the outer wall of the support columns, a roll holder provided on the inner side of the fixing plate, the bottom end of the roll holder being rotatably connected to the fixing plate, a second servo motor detachably nested on the upper side of one side of the roll holder, a first limiting clamp fixedly connected to the power output end of the second servo motor, a second limiting clamp threadedly connected to the side of the roll holder opposite to the second limiting clamp, the second limiting clamp including a twist head, a threaded rod, a rotating connecting shaft, and a clamping head, a threaded rod vertically threadedly connected to the side of the roll holder opposite to the second limiting clamp, a rotating connecting shaft fixedly connected to the inner side of the threaded rod, a clamping head rotatably connected to the surface of the rotating connecting shaft, and an end fixedly connected to the outer end of the threaded rod.

[0006] Preferably, a winding rod is rotatably provided on the inner bottom end of the support column, and a first servo motor is detachably nested on the surface of the support column on one side of the winding rod. The power output end of the first servo motor is fixedly connected to one side of the winding rod. Traction ropes are wound on both ends of the winding rod, and the ends of the traction ropes are fixedly connected to the top of the material roll frame.

[0007] Preferably, the winding rod includes a drive rod and a winding wheel, with winding wheels fixedly connected to both sides of the drive rod, and the traction line fixedly wound around the surface of the winding wheel.

[0008] Preferably, a guide wheel is rotatably connected to the inner wall of the support column above the winding rod.

[0009] Preferably, a control panel is provided on the upper surface of one side of the support column, and both the first servo motor and the second servo motor are electrically connected to an external power source through the control panel.

[0010] Preferably, the traction rope is a steel wire traction rope, and the surface of the traction rope is coated with a wear-resistant coating.

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

[0012] When installing a material roll, this invention places the roll on a roll holder and engages one side with the first limiting clamp on the servo motor's power output end. Then, rotating the torsion head clockwise drives the threaded rod, which in turn moves the clamp inward, causing it to clamp the other side of the roll under the action of the rotating connecting shaft. Compared to traditional bolt fixing, this method requires no complex tools and offers more precise positioning, effectively reducing the time and error of roll installation. Reverse operation enables quick disassembly, significantly improving the speed of roll assembly and disassembly, saving time and effort, and increasing processing efficiency. Simultaneously, it utilizes the first servo motor... The motor, transmission rod, take-up reel, and traction rope work together. When changing the material roll, the first servo motor drives the take-up rod to rotate, causing the take-up reel to release the traction rope. Under its own weight, the material roll frame slowly descends along the connection point with the fixed plate. When the material roll frame descends to the appropriate height, the first and second limit clamps work together to achieve quick disassembly and replacement of the material roll. This avoids the heavy physical labor of manually carrying and raising the material roll, making operation convenient and greatly shortening the overall time of material roll replacement. It also improves the production efficiency and practicality of the plastic flexible packaging gravure printing machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the winding rod of this utility model;

[0015] Figure 3This is a schematic diagram of the structure of the second limiting card head of this utility model.

[0016] In the diagram: 1. Base; 2. Support column; 3. Fixing plate; 4. First servo motor; 5. Material roll frame; 6. Second servo motor; 7. First limit stop; 8. Rewinding rod; 9. Guide wheel; 10. Traction rope; 11. Second limit stop; 801. Transmission rod; 802. Rewinding wheel; 111. Twist head; 112. Threaded rod; 113. Rotary connecting shaft; 114. Connector. Detailed Implementation

[0017] 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.

[0018] Example

[0019] Please see Figure 1 - Figure 3 The diagram illustrates a quick roll change structure for a gravure printing machine for flexible plastic packaging. It includes a base 1, with support columns 2 fixedly connected to both sides of one end of the upper surface of the base 1. A fixing plate 3 is fixedly connected to the bottom of the outer wall of each support column 2. A roll holder 5 is provided inside the fixing plate 3. The bottom end of the roll holder 5 is rotatably connected to the fixing plate 3. A second servo motor 6 is detachably nested on the upper side of one side of the roll holder 5. A first limiting clamp 7 is fixedly connected to the power output end of the second servo motor 6. A second limiting clamp 7 is threadedly connected to the side of the roll holder 5 opposite to the second limiting clamp 7. The second limiting clamp 7 includes a twist head 111, a threaded rod 112, a rotating connecting shaft 113, and a clamping head 114. The roll holder 5 is positioned relative to the second limiting clamp 7. One side of the 1 is vertically threaded with a threaded rod 112. A rotating connecting shaft 113 is fixedly connected to the inner side of the threaded rod 112. A snap-fit ​​connector 114 is rotatably connected to the surface of the rotating connecting shaft 113. An end is fixedly connected to the outer end of the threaded rod 112. When installing the material roll, the material roll is placed on the material roll frame 5, and one side of it is snapped with the first limit snap-fit ​​connector 7 on the power output end of the servo motor. Then, the torsion head 111 is rotated clockwise to drive the threaded rod 112, which in turn drives the snap-fit ​​connector 114 to move inward. Under the action of the rotating connecting shaft 113, the snap-fit ​​connector 114 clamps the other side of the material roll. Compared with traditional bolt fixing, no complicated tools are required and the positioning is more accurate, effectively reducing the installation time and error of the material roll. The reverse operation can achieve quick disassembly, effectively improving the quick disassembly and assembly of the material roll.

[0020] The support column 2 has a winding rod 8 rotatably mounted on its inner bottom end. A first servo motor 4 is detachably nested on the surface of the support column 2 on one side of the winding rod 8, and the power output end of the first servo motor 4 is fixedly connected to one side of the winding rod 8. Traction ropes 10 are wound around both ends of the winding rod 8, and the ends of the traction ropes 10 are fixedly connected to the top of the material roll frame 5. The winding rod 8 includes a transmission rod 801 and a winding wheel 802. The winding wheel 802 is fixedly connected to both sides of the transmission rod 801, and the traction line is fixedly wound around the surface of the winding wheel 802. The first servo motor 4 drives the winding rod 8 to rotate, causing the winding wheel 802 to release the traction rope 10. The material roll frame 5 slowly descends along the connection point with the fixed plate 3 under its own gravity. When the material roll frame 5 descends to a suitable height, the material roll is quickly disassembled and replaced by the cooperation of the first limit clamp 7 and the second limit clamp 11. This avoids the heavy physical labor of manually carrying and raising the material roll, making the operation convenient and greatly shortening the overall time of material roll replacement.

[0021] The inner wall of the support column 2 above the winding rod 8 is rotatably connected to a guide wheel 9; the guide wheel 9 can guide the traction rope 10 to move along its fixed trajectory, ensuring accuracy during adjustment.

[0022] The support column 2 has a control panel on its upper side, and the first servo motor 4 and the second servo motor 6 are electrically connected to an external power source through the control panel. The traction rope 10 is a steel wire traction rope with a wear-resistant coating. The control panel centrally controls the first and second servo motors and the wear-resistant steel wire traction rope 10, enabling convenient and efficient roll replacement. This allows operators to accurately control the lifting and lowering of the roll frame 5 and the loosening and fixing of the roll. The characteristics of the traction rope 10 also reduce downtime due to malfunctions, improving the durability, operational stability, and continuity and efficiency of the roll replacement system.

[0023] It should be noted that this utility model is a quick roll replacement structure for a plastic flexible packaging gravure printing machine. During replacement, the first servo motor 4 is started via the control panel. The first servo motor 4 drives the take-up rod 8 to rotate, and the take-up wheel 802 releases the traction rope 10. The roll frame 5 then descends. After the roll frame 5 descends to a suitable height, the roll is placed on the roll frame 5, and one side of it is engaged with the first limit clamp 7 on the power output end of the servo motor. Then, the toggle head 111 is rotated clockwise to drive the threaded rod 112, which in turn drives the clamping head 114 to move inward. Under the action of the rotating connecting shaft 113, the clamping head 114 clamps the other side of the roll, completing the roll fixing. Subsequently, the first servo motor 4 is reversed again via the control panel, the take-up wheel 802 rewinds the traction rope 10, and the roll frame 5 rises to the working position. The structure is simple, easy to operate, and avoids the heavy physical labor of manually carrying and raising the roll. The operation is convenient, greatly shortening the overall roll replacement time and improving the production efficiency and equipment practicality of the plastic flexible packaging gravure printing machine.

[0024] 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 a process, method, article, or apparatus.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick roll change structure for a gravure printing machine for flexible plastic packaging, comprising a base (1), characterized in that: The base (1) has support columns (2) fixedly connected to both sides of one end of its upper surface. The bottom of the outer wall of the support column (2) is fixedly connected to a fixing plate (3). The inner side of the fixing plate (3) is provided with a material roll rack (5). The bottom end of the material roll rack (5) is rotatably connected to the fixing plate (3). The upper side of one side of the material roll frame (5) is detachably nested with a second servo motor (6). The power output end of the second servo motor (6) is fixedly connected to a first limiting head (7). The material roll frame (5) is threadedly connected to a second limiting head (11) on the side opposite to the second limiting head (11). The second limiting head (11) includes a twist head (111), a threaded rod (112), a rotating connecting shaft (113), and a clamping head (114). The material roll frame (5) is vertically threadedly connected to a threaded rod (112) on the side opposite to the second limiting head (11). The inner side of the threaded rod (112) is fixedly connected to a rotating connecting shaft (113). The surface of the rotating connecting shaft (113) is rotatably connected to a clamping head (114). The outer end of the threaded rod (112) is fixedly connected to an end. The inner bottom of the support column (2) is provided with a winding rod (8). The surface of the support column (2) on one side of the winding rod (8) is detachably nested with a first servo motor (4). The power output end of the first servo motor (4) is fixedly connected to one side of the winding rod (8). Both ends of the winding rod (8) are wrapped with traction ropes (10), and the end of the traction ropes (10) is fixedly connected to the top of the material roll frame (5).

2. The quick roll changing structure for a gravure printing machine for flexible plastic packaging according to claim 1, characterized in that: The winding rod (8) includes a transmission rod (801) and a winding wheel (802). The winding wheel (802) is fixedly connected to both sides of the transmission rod (801), and the traction line is fixedly wound on the surface of the winding wheel (802).

3. The quick roll changing structure for a gravure printing machine for flexible plastic packaging according to claim 1, characterized in that: The inner wall of the support column (2) above the winding rod (8) is rotatably connected to a guide wheel (9).

4. The quick roll changing structure for a gravure printing machine for flexible plastic packaging according to claim 1, characterized in that: The upper surface of one side of the support column (2) is equipped with a control panel, and the first servo motor (4) and the second servo motor (6) are electrically connected to an external power source through the control panel.

5. The quick roll changing structure for a gravure printing machine for flexible plastic packaging according to claim 1, characterized in that: The traction rope (10) is a steel wire traction rope (10), and the surface of the traction rope (10) is coated with a wear-resistant coating.

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