Plastic film printing device
Through the combined design of differential pressure roller and water-attached roller, combined with the tension printing box group, the problem of insufficient film tension is solved, stable tension and uniform printing ink are achieved during the printing process, and the quality of the finished printing product is improved.
Patent Information
- Application Number
- CN202422438849.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-10
AI Technical Summary
It is difficult for existing printing machines to achieve continuous and effective tension of the film during the printing process, resulting in the printing of the finished product being easily wrinkled or uneven ink printing.
The combination of differential pressure roller and water-attached roller is adopted, combined with the tension printing box group, through the coordination of the connecting sleeve plate, the connecting column and the return spring, the stable rotation of the printing sleeve roller is ensured and the uniform tension of the film is achieved.
It effectively ensures the tension of the plastic film, avoids wrinkles during the printing process, ensures uniform printing ink, and improves printing quality.
Smart Images
Figure CN223072127U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing, and particularly relates to a plastic film printing device. Background Art
[0002] A machine for printing text and images. Modern printing presses generally consist of mechanisms such as plate loading, inking, impression, and paper feeding (including folding). Its working principle is: first, the text and images to be printed are made into printing plates and installed on the printing press, and then ink is applied to the areas with text and images on the printing plate by manual or the printing press, and then directly or indirectly transferred to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby reproducing the same printed matter as the printing plate. The invention and development of printing presses have played an important role in the spread of human civilization and culture.
[0003] The invention and development of printing presses have played an important role in the spread of human civilization and culture. However, most of the current printing presses on the market are difficult to achieve a continuous and effective tensioning effect on the film during the printing process, which easily causes wrinkles or uneven ink application on the printed finished products. Therefore, technical personnel in this field have provided a plastic film printing device to solve the problems raised in the above background art. Summary of the Utility Model
[0004] To solve the above technical problems, the utility model provides a plastic film printing device, including a main tabletop. A gantry is fixedly installed at the upper end of the main tabletop. A bracket is fixedly installed in the middle of the upper end of the main tabletop. A water tank is fixedly installed at the upper end of the bracket. An attached water roller is arranged directly above the water tank. A differential pressure roller is arranged directly above the attached water roller. A tensioning and printing box group is hoisted above the gantry. An attached oil roller is arranged on the front side of the tensioning and printing box group.
[0005] The tensioning and printing box group includes a printing box body, a printing inner cavity, a fixed rod seat, fixed rods, connecting sleeve plates, connecting columns, sleeve shafts, arc grooves, printing sleeve rollers, C-shaped plates, and return springs. The interior of the printing box body is a hollow structure, and the hollow cavity of the printing box body is the printing inner cavity. A fixed rod seat is fixedly installed at the lower part of the rear wall surface of the printing inner cavity. Fixed rods are symmetrically and fixedly installed on the left and right side surfaces of the fixed rod seat. Connecting sleeve plates are sleeved on the fixed rods. A connecting column is fixedly installed in the middle between the connecting sleeve plates at the left and right ends of the fixed rod seat. The connecting column can effectively ensure that the connecting sleeve plates rotate at the same angle around the fixed rod, reducing the rotation deviation. The same sleeve shaft is sleeved between the connecting sleeve plates, and a printing sleeve roller is sleeved on the sleeve shaft. The printing sleeve roller is arranged between the connecting sleeve plates.
[0006] Preferably, a differential drive group is fixedly installed in the middle of the left side surface of the gantry. The differential pressure roller and the attached water roller are both driven and connected to the differential drive group, and a differential reverse rotation is arranged between the differential pressure roller and the attached water roller.
[0007] Preferably, a water supply tank is fixedly installed in the middle of the right side of the gantry. A continuous water pipe is connected to the lower end of the water supply tank, and the lower end port of the continuous water pipe communicates with the water tank.
[0008] Preferably, a first guide roller is rotatably installed in the middle of the front side of the gantry, and a second guide roller is rotatably installed in the middle of the rear side of the gantry.
[0009] Preferably, a plastic film is arranged in the front of the tension printing box group. The plastic film passes through the gap between the differential pressure roller and the water-attaching roller after being guided by the first guide roller inside the oil-attaching roller, and then enters the tension printing box group after being guided by the second guide roller.
[0010] Preferably, arc-shaped grooves are opened in the middle of the left and right side walls of the printing cavity. The sleeve shaft passes through the connecting sleeve plate and is arranged in the arc-shaped groove, so that the printing sleeve roller will rotate directionally around the fixed rod in the arc-shaped groove through the sleeve shaft.
[0011] The technical effects and advantages of the present utility model:
[0012] 1. When the present utility model is in use, the connecting column can effectively ensure that the connecting sleeve plate rotates at the same angle around the fixed rod, reduce the rotation deviation, and the printing sleeve roller will rotate directionally around the fixed rod in the arc-shaped groove through the sleeve shaft, so that the pressure deflection angle of the printing sleeve roller is stable.
[0013] 2. When the present utility model is in use, the plastic film applies the traction force received to the printing sleeve roller, and the printing sleeve roller drives the connecting sleeve plates on both sides of the sleeve shaft to rotate around the fixed rod. At the same time, the C-shaped plate is pushed forward by the elastic deformation of the return spring to abut against the connecting column to ensure that the printing sleeve roller is at an appropriate deflection angle, thereby ensuring the tension degree of the plastic film. Brief Description of the Drawings
[0014] Figure 1 is the structural schematic diagram provided by this application;
[0015] Figure 2 is the structural schematic diagram of the differential pressure roller provided by this application;
[0016] Figure 3 is the structural schematic diagram of the tension printing box group provided by this application;
[0017] In the figure: 1, main table top; 2, gantry; 3, differential drive group; 4, bracket; 5, water tank; 6, water supply tank; 7, continuous water pipe; 8, water-attaching roller; 9, differential pressure roller; 10, first guide roller; 11, second guide roller; 12, plastic film; 13, tension printing box group; 14, oil-attaching roller.
[0018] 131. Printing box body; 132. Printing inner cavity; 133. Fixed rod seat; 134. Fixed rod; 135. Connecting sleeve plate; 136. Connecting column; 137. Sleeve shaft; 138. Arc groove; 139. Printing sleeve roller; 1310. C-shaped plate; 1311. Return spring. Detailed implementation manner
[0019] The following further describes the present utility model in detail in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present utility model are given for the purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.
[0020] Please refer to Figures 1 to 3 , in this embodiment, a plastic film printing device is provided, including a main table 1, a gantry 2 is fixedly installed at the upper end of the main table 1, a differential drive group 3 is fixedly installed in the middle of the left side of the gantry 2, a bracket 4 is fixedly installed in the middle of the upper end of the main table 1, a water tank 5 is fixedly installed at the upper end of the bracket 4, a water supply tank 6 is fixedly installed in the middle of the right side of the gantry 2, a continuous water pipe 7 is connected to the lower end of the water supply tank 6, and the lower end port of the continuous water pipe 7 communicates with the inside of the water tank 5. An attached water roller 8 is arranged directly above the water tank 5, a differential pressure roller 9 is arranged directly above the attached water roller 8, both the differential pressure roller 9 and the attached water roller 8 are drivingly connected to the differential drive group 3, a differential reverse rotation is provided between the differential pressure roller 9 and the attached water roller 8, and a speed difference is formed by meshing between two differential gears of different sizes between the differential pressure roller 9 and the attached water roller 8. A guide roller 10 is rotatably installed in the middle of the front side of the gantry 2, a guide roller 11 is rotatably installed in the middle of the rear side of the gantry 2, a tensioning printing box group 13 is hoisted above the gantry 2, an attached oil roller 14 is arranged on the front side of the tensioning printing box group 13, a plastic film 12 is arranged on the front side of the tensioning printing box group 13, and the plastic film 12 will pass through the gap between the differential pressure roller 9 and the attached water roller 8 after being guided by the inner side of the attached oil roller 14 and passing through the guide roller 10. Then, the plastic film 12 enters the tensioning printing box group 13 after being guided by the guide roller 11;
[0021] The tensioning printing box group 13 includes a printing box body 131, a printing inner cavity 132, a fixed rod seat 133, fixed rods 134, connecting sleeve plates 135, connecting columns 136, sleeve shafts 137, arc-shaped grooves 138, a printing sleeve roller 139, a C-shaped plate 1310 and a return spring 1311. The interior of the printing box body 131 is a hollow structure, and the hollow cavity of the printing box body 131 is the printing inner cavity 132. A fixed rod seat 133 is fixedly installed at the lower part of the rear wall surface of the printing inner cavity 132. Fixed rods 134 are symmetrically and fixedly installed on the left and right side surfaces of the fixed rod seat 133. A connecting sleeve plate 135 is sleeved on the fixed rod 134. A connecting column 136 is fixedly installed in the middle between the connecting sleeve plates 135 at the left and right ends of the fixed rod seat 133. The connecting column 136 can effectively ensure that the connecting sleeve plates 135 rotate at the same angle around the fixed rod 134, reducing the rotation deviation. The same sleeve shaft 137 is sleeved between the connecting sleeve plates 135, and a printing sleeve roller 139 is sleeved on the sleeve shaft 137. The printing sleeve roller 139 is arranged between the connecting sleeve plates 135. Arc-shaped grooves 138 are opened in the middle of the left and right side walls of the printing inner cavity 132. The sleeve shaft 137 passes through the connecting sleeve plate 135 and is arranged in the arc-shaped groove 138. Thus, the printing sleeve roller 139 will rotate directionally around the fixed rod 134 in the arc-shaped groove 138 through the sleeve shaft 137.
[0022] The working principle of the present utility model is:
[0023] When the present utility model is in use, the water tank 6 is used to inject water into the water tank 5 through the continuous water pipe 7 in advance, so that the water-attaching roller 8 is wetted with water. The plastic film 12 will pass through the gap between the differential pressure roller 9 and the water-attaching roller 8 under the guidance of the guide roller one 10 inside the oil-attaching roller 14, and then enter the tensioning printing box group 13 under the guidance of the guide roller two 11. At this time, the plastic film 12 will cover the inner side of the printing sleeve roller 139 in the printing inner cavity 132. Due to the traction of the external winding device, the traction force received by the plastic film 12 is applied to the printing sleeve roller 139. The printing sleeve roller 139 drives the connecting sleeve plates 135 on both sides of the sleeve shaft 137 to rotate around the fixed rod 134. Driven by the fixed connection of the connecting column 136, the connecting column 136 can effectively ensure that the connecting sleeve plates 135 rotate at the same angle around the fixed rod 134. At the same time, the C-shaped plate 1310 is pushed forward by the elastic deformation reset of the return spring 1311 to resist the connecting column 136, thereby reducing the rotation deviation. And at this time, the printing sleeve roller 139 will rotate directionally around the fixed rod 134 in the arc-shaped groove 138 through the sleeve shaft 137 to ensure that the printing sleeve roller 139 is at an appropriate deflection angle, thereby ensuring the tension degree of the plastic film 12, so that the oil-attaching roller 14, the water-attaching roller 8 and the printing sleeve roller 139 can print the plastic film 12 stably during the oil-water separation printing process without wrinkles affecting the printing effect.
[0024] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model shall be implemented by conventional means in the art without special instructions and limitations.
Claims
1. A plastic film printing device, comprising a main tabletop (1), characterized in that, A gantry (2) is fixedly installed at the upper end of the main tabletop (1). A bracket (4) is fixedly installed in the middle of the upper end of the main tabletop (1). A water tank (5) is fixedly installed at the upper end of the bracket (4). A water-attaching roller (8) is arranged directly above the water tank (5). A differential pressure roller (9) is arranged directly above the water-attaching roller (8). A tensioning printing box group (13) is hoisted above the gantry (2). An oil-attaching roller (14) is arranged on the front side of the tensioning printing box group (13). The tensioning printing box group (13) includes a printing box body (131), a printing inner cavity (132), a fixed rod seat (133), fixed rods (134), connecting sleeve plates (135), connecting columns (136), a sleeve shaft (137), an arc-shaped groove (138), a printing sleeve roller (139), a C-shaped plate (1310), and a return spring (1311). The interior of the printing box body (131) is a hollow structure. The hollow cavity of the printing box body (131) is the printing inner cavity (132). A fixed rod seat (133) is fixedly installed at the lower part of the rear wall surface of the printing inner cavity (132). Fixed rods (134) are symmetrically and fixedly installed on the left and right side surfaces of the fixed rod seat (133). Connecting sleeve plates (135) are sleeved on the fixed rods (134). A connecting column (136) is fixedly installed in the middle between the connecting sleeve plates (135) at the left and right ends of the fixed rod seat (133). The same sleeve shaft (137) is sleeved between the connecting sleeve plates (135). A printing sleeve roller (139) is sleeved on the sleeve shaft (137). The printing sleeve roller (139) is arranged between the connecting sleeve plates (135).
2. The plastic film printing device according to claim 1, characterized in that, A differential drive group (3) is fixedly installed in the middle of the left side surface of the gantry (2). Both the differential pressure roller (9) and the water-attaching roller (8) are drivingly connected to the differential drive group (3). A differential reverse rotation is provided between the differential pressure roller (9) and the water-attaching roller (8).
3. A plastic film printing device according to claim 2, characterized in that, A water supply tank (6) is fixedly installed in the middle of the right side surface of the gantry (2). A continuous water pipe (7) is connected to the lower end of the water supply tank (6). The lower end port of the continuous water pipe (7) communicates with the inside of the water tank (5).
4. A plastic film printing device according to claim 1, characterized in that, A guide roller I (10) is rotatably installed in the middle of the front side of the gantry (2). A guide roller II (11) is rotatably installed in the middle of the rear side of the gantry (2).
5. A plastic film printing device according to claim 4, characterized in that, A plastic film (12) is arranged on the front side of the tensioning printing box group (13). The plastic film (12) passes around the inside of the oil-attaching roller (14) and is guided by the guide roller I (10) so that the plastic film (12) passes through the gap between the differential pressure roller (9) and the water-attaching roller (8). Then, the plastic film (12) enters the tensioning printing box group (13) under the guidance of the guide roller II (11).
6. A plastic film printing device according to claim 1, characterized in that, Arc-shaped grooves (138) are opened in the middle of the left and right side walls of the printing inner cavity (132). The sleeve shaft (137) passes through the connecting sleeve plates (135) and is arranged in the arc-shaped grooves (138).