Printing machine film smoothing device

Abstract

The utility model belongs to the technical field of printing machines, and particularly relates to a printing machine film smoothing device which comprises a base. A support is fixedly mounted on the upper portion of the base, a smoothing platform is arranged below the support and fixedly mounted on the base, a fixing frame is slidably mounted in the support, a fixing plate is fixedly mounted at the bottom of the fixing frame, one side of the fixing plate is trapezoidal, and roller seats are fixedly mounted on two slopes of the fixing plate. Flattening rollers are rotatably mounted in the roller seats, sliding rails are fixedly mounted on the upper portions of the roller seats, sliding blocks are slidably mounted in the sliding rails, connecting frames are fixedly mounted at the tops of the sliding blocks, and one ends of the bottoms of the connecting frames are slidably arranged in the sliding rails. A limiting block is mounted at one end of the bottom of the connecting frame in a sliding manner; by adjusting the height of the fixing frame, the position of the connecting frame and matching of the limiting block and the spring, the problems that an existing flattening device is prone to uneven flattening, thin film wrinkles and damage and the like in the using process are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a film smoothing device for a printing machine. Background Art

[0002] Printing press film smoothing devices are widely used in various printing equipment, especially in printing processes that require the use of thin films, such as packaging printing and advertising printing. By using this device, the quality and production efficiency of printed products can be greatly improved, and production costs and scrap rates can be reduced.

[0003] The working principle of the film smoothing device on a printing press: When the device is started, the film is released from the winding roller, passed over the guide roller, and then introduced into the smoothing mechanism. At this time, the hydraulic telescopic cylinder pushes the smoothing plate downward, making it fit tightly against the film, and the smoothing plate squeezes and smoothes the film.

[0004] Existing smoothing devices often lack sufficient adjustment space and flexibility, resulting in an inability to adapt to films of different thicknesses and materials during the smoothing process, thereby causing uneven smoothing. Therefore, a printing press film smoothing device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the existing smoothing devices often lack sufficient adjustment space and flexibility, resulting in the inability to adapt to films of different thicknesses and materials during the smoothing process, thereby causing uneven smoothing. The utility model proposes a printing machine film smoothing device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a printing machine film smoothing device described in the present invention comprises a base; a bracket is fixedly installed on the upper part of the base, a smoothing platform is provided under the bracket and fixedly installed on the base, a fixed frame is slidably installed in the bracket, a fixed plate is fixedly installed on the bottom of the fixed frame, one side of the fixed plate is set to be trapezoidal, and roller seats are fixedly installed on both inclined surfaces, smoothing rollers are rotatably installed inside the roller seats, slide rails are fixedly installed on the top of the roller seats, sliders are slidably installed inside the slide rails, and the tops of the sliders are fixedly installed on the connecting frame, one end of the bottom of the connecting frame is slidably set in the slide rail, and the other end is set on the outside of the roller seat, a control panel is provided on the top of the slide rail, and a hole is opened in the control panel Material toggling mechanism, its both ends are mounted on the bearings of the base, and the bearings are convenient to use and can be used as the support frame of the present invention. The said bearing frame has a simple structure and is easily adjustable, and its upper end is connected with a plurality of connecting rods to form a plurality of connecting rods with corresponding connecting rods. The connecting rods are connected by a plurality of connecting rods at a plurality of adjustment positions.

[0007] Preferably, vertical plates are provided between both ends of the unwinding mechanism and both sides of the smoothing platform and are fixedly installed on the base, a No. 2 cylinder is fixedly installed on the top of the vertical plates, and a mounting hole is opened on one side of the upper end thereof, a movable block is slidably installed inside the mounting hole, the piston rod of the No. 2 cylinder is fixedly installed on the top of the movable block, a tensioning roller is provided between the movable blocks, both ends of the tensioning roller are rotatably installed inside the movable block through bearings, and the movable block and the tensioning roller are used to realize flexible adjustment of the film tension and solve the problem of uneven smoothing.

[0008] Preferably, a sliding hole is provided on the top of the support plate, a sliding rod is slidably installed in the sliding hole, the lower end of the sliding rod is fixedly installed on the top of the mounting block, and a No. 1 spring is provided on the upper part of the mounting block and is sleeved on the sliding rod. By setting the sliding hole of the support plate, the sliding rod and the No. 1 spring, stable support and buffering of the pressure roller are provided, thereby reducing damage to the film.

[0009] Preferably, a No. 1 cylinder is fixedly installed on the top of the bracket, and the piston rod of the No. 1 cylinder is fixedly installed in the center of the top of the fixing frame. By setting the No. 1 cylinder to drive the fixing frame to rise and fall, the adjustment space of the smoothing device is increased to adapt to films of different thicknesses.

[0010] Preferably, a two-way cylinder is fixedly installed on one side of the upper part of the fixed plate, and connecting rods are rotatably installed on the piston rods at both ends of the two-way cylinder. The other ends of the connecting rods are rotatably installed on the same side of the two ends of the control plate. The two-way cylinder on the fixed plate cooperates with the connecting rod and the control plate to achieve fine adjustment of the smoothing roller angle and improve the smoothing accuracy.

[0011] Preferably, a motor is fixedly installed on the top of the outer end of the roller seat, and a bevel gear is fixedly installed on the end of the motor rotating shaft adjacent to the smoothing roller. The bevel gears are perpendicular to each other and meshed with each other. By setting the motor outside the roller seat and the bevel gear transmission, the smoothing roller is driven to rotate, thereby ensuring the continuity and efficiency of the smoothing operation.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model starts the No. 1 cylinder to push the fixed frame to slide in the bracket during the process of using the printing machine to print the film, and at the same time drives the fixed plate to move, thereby adjusting the distance between the smoothing roller and the smoothing platform, and at the same time starts the two-way cylinder, and the piston rods at both ends of the two-way cylinder push the connecting rod to drive the control plate to move, and the control plate pushes the connecting frame to move along the slide rail, and at the same time drives the slider to slide in the slide rail, and the connecting frame drives the limit block to move so that the distance between the limit blocks is equal to the width of the film, starts the motor to drive the bevel gear to rotate, and the bevel gear drives the smoothing roller to rotate, and the structural design for smoothing the film realizes the function of enhancing adjustment space and flexibility, and solves the problem that the existing smoothing device often lacks sufficient adjustment space and flexibility, resulting in the inability to adapt to films of different thicknesses and materials during the smoothing process, thereby causing uneven smoothing, thereby improving the smoothing effect and product quality, and reducing production cost and time cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of the smoothing device;

[0016] Figure 2 It is a structural diagram of a film conveying device;

[0017] Figure 3 It is a schematic diagram of the structure of the smoothing mechanism;

[0018] Figure 4 Schematic diagram of the driving device structure;

[0019] Figure 5 Schematic diagram of the limit device structure.

[0020] In the figure: 1. Base; 2. Smoothing platform; 3. Support plate; 4. Mounting block; 5. Slide rod; 6. Pressure roller; 7. Spring No. 1; 8. Bracket; 9. Cylinder No. 1; 10. Fixed frame; 11. Fixed plate; 12. Roller seat; 13. Two-way cylinder; 14. Connecting rod; 15. Control panel; 16. Slide rail; 17. Slider; 18. Connecting frame; 19. Limit block; 20. Spring No. 2; 21. Smoothing roller; 22. Motor; 23. Bevel gear; 24. Unwinding mechanism; 25. Vertical plate; 26. Cylinder No. 2; 27. Movable block; 28. Tensioning roller. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5As shown, a film smoothing device for a printing press includes a base 1; a bracket 8 is fixedly installed on the upper part of the base 1, a smoothing platform 2 is provided below the bracket 8 and is fixedly installed on the base 1, a fixing frame 10 is slidably installed in the bracket 8, a fixing plate 11 is fixedly installed at the bottom of the fixing frame 10, one side of the fixing plate 11 is set in a trapezoidal shape, and roller seats 12 are fixedly installed on both inclined surfaces, smoothing rollers 21 are rotatably installed inside the roller seats 12, a slide rail 16 is fixedly installed on the upper part of the roller seats 12, a slider 17 is slidably installed inside the slide rail 16, and the top of the slider 17 is fixedly mounted on the connecting frame 18 , one end of the bottom of the connecting frame 18 is slidably set in the slide rail 16, and the other end is set on the outside of the roller seat 12. A control plate 15 is provided on the upper part of the slide rail 16, and a hole is opened in the control plate 15. One end of the bottom of the connecting frame 18 is slidably set in the hole of the control plate 15, and a limit block 19 is slidably installed on the other end. A second spring 20 is provided on the top of the limit block 19 and is sleeved on the lower end of the connecting frame 18. Support plates 3 are provided on both sides of both ends of the bracket 8 and are fixedly installed on the base 1. A through hole is opened on one side of the upper end of the support plate 3, and a mounting block 4 is slidably installed in the through hole. A pressure roller is provided between the upper ends of the support plates 3 6. Both ends of the pressure roller 6 are rotatably mounted in the mounting block 4 through bearings, and a reeling mechanism 24 is fixedly mounted on the upper part of one end of the base 1. During operation, when the printing press is used to print the film, the film is reeled off by the reeling mechanism 24, and the film is placed on the caressing platform 2. The pressure roller 6 presses the film on both ends of the caressing platform 2 under the action of the No. 1 spring 7, the slide bar 5 and the mounting block 4. At the same time, the No. 1 cylinder 9 is started to push the fixed frame 10 to slide down in the bracket 8. The fixed frame 10 drives the fixed plate 11 to move downward, and the fixed plate 11 drives the smoothing roller 21 to move downward through the roller seat 12. The smoothing roller 2 is adjusted according to the thickness of the film. 1 and the distance between the upper surface of the smoothing platform 2. At this time, the bottom of the limit block 19 is always in contact with the surface of the smoothing platform 2 under the action of the No. 2 spring 20. At the same time, the two-way cylinder 13 is started. The piston rods at both ends of the two-way cylinder 13 push one end of the connecting rod 14 to move. At the same time, the other end of the connecting rod 14 pushes the control board 15 to move. The control board 15 drives the slider 17 to slide in the slide rail 16 through one end of the connecting frame 18. The other end of the connecting frame 18 drives the limit block 19 to move along the edge of the roller seat 12, so that the distance between the two limit blocks 19 is equal to the width of the film. The starting motor 22 drives the smoothing roller 21 to rotate through the bevel gear 23 to smooth the film.

[0023] Vertical plates 25 are provided between both ends of the unwinding mechanism 24 and both sides of the caressing platform 2 and are fixedly installed on the base 1. A No. 2 cylinder 26 is fixedly installed on the top of the vertical plate 25, and a mounting hole is provided on one side of the upper end thereof. A movable block 27 is slidably installed inside the mounting hole. The piston rod of the No. 2 cylinder 26 is fixedly installed on the top of the movable block 27. A tensioning roller 28 is provided between the movable blocks 27, and both ends of the tensioning roller 28 are rotatably installed inside the movable block 27 through bearings; during operation, when the printing press is used to print the film, the No. 2 cylinder 26 is started, and the piston rod of the No. 2 cylinder 26 drives the movable block 27 to slide in the mounting hole at the top of the vertical plate 25, and the film is tensioned by the tensioning roller 28, the pressure roller 6 and the unwinding mechanism 24.

[0024] The top of each support plate 3 is provided with a sliding hole, in which a sliding rod 5 is slidably installed. The lower end of the sliding rod 5 is fixedly installed on the top of the mounting block 4, and a No. 1 spring 7 is provided on the upper part of the mounting block 4 and is sleeved on the sliding rod 5; during operation, when the printing press is used to print the film, when the film passes between the pressure roller 6 and the caressing platform 2, the No. 1 spring 7 is compressed, and the No. 1 spring 7 applies pressure to the mounting block 4 through the sliding rod 5 and the support plate 3, and the mounting block 4 drives the pressure roller 6 to apply pressure to the upper part of the film.

[0025] A No. 1 cylinder 9 is fixedly installed on the top of the bracket 8, and the piston rod of the No. 1 cylinder 9 is fixedly installed in the top center of the fixing frame 10; during operation, when the printing press is used to print the film, the No. 1 cylinder 9 is started to push the fixing frame 10 to slide inside the bracket 8, and the fixing frame 10 drives the fixing plate 11 to move, and the fixing plate 11 drives the smoothing roller 21 to move, and the distance between the smoothing roller 21 and the upper part of the smoothing platform 2 is adjusted to adapt to the smoothing of films of different thicknesses.

[0026] A two-way cylinder 13 is fixedly installed on one side of the upper part of the fixed plate 11, and connecting rods 14 are rotatably installed on the piston rods at both ends of the two-way cylinder 13, and the other ends of the connecting rods 14 are rotatably installed on the same side of the two ends of the control plate 15; during operation, when the printing press is used to print the film, the two-way cylinder 13 is started, and the piston rods at both ends of the two-way cylinder 13 simultaneously push one end of the connecting rod 14 to move, and the other end of the connecting rod 14 pushes the control plate 15 to move, driving the slider 17 and the connecting frame 18 to slide in the slide rail 16, and the limit block 19 is driven to move by the connecting frame 18, so that the distance between the limit blocks 19 is equal to the width of the film.

[0027] A motor 22 is fixedly installed on the top of the outer end of the roller seat 12, and a bevel gear 23 is fixedly installed on the end adjacent to the smoothing roller 21 of the motor 22 rotating shaft. The bevel gears 23 are perpendicular to each other and meshed. During operation, when the printing press is used to print the film, the motor 22 is started, and the rotating shaft of the motor 22 drives the bevel gear 23 to rotate. The bevel gear 23 drives the smoothing roller 21 to rotate through another bevel gear 23 to smooth the film on the smoothing platform 2.

[0028] Working principle: during the process of printing the film using a printing press, the film is unwound through the unwinding mechanism 24, and the film is placed on the caressing platform 2. The pressure roller 6 presses the film on both ends of the caressing platform 2 under the action of the No. 1 spring 7, the slide bar 5 and the mounting block 4. The No. 2 cylinder 26 is started, and the piston rod of the No. 2 cylinder 26 drives the movable block 27 to slide in the mounting hole at the top of the vertical plate 25. The film is tensioned by the tensioning roller 28, the pressure roller 6 and the unwinding mechanism 24. At the same time, the No. 1 cylinder 9 is started to push the fixed frame 10 to slide down in the bracket 8. The fixed frame 10 drives the fixed plate 11 to move downward. The fixed plate 11 drives the smoothing roller 21 to move downward through the roller seat 12. The distance between the smoothing roller 21 and the upper surface of the smoothing platform 2 is adjusted according to the thickness of the film. At this time, the bottom of the limit block 19 is always in contact with the surface of the smoothing platform 2 under the action of the No. 2 spring 20, and the two-way cylinder 13 is started at the same time. The piston rods at both ends of the two-way cylinder 13 push one end of the connecting rod 14 to move, and at the same time, the other end of the connecting rod 14 pushes the control board 15 to move. The control board 15 drives the slider 17 to slide in the slide rail 16 through one end of the connecting frame 18, and the other end of the connecting frame 18 drives the limit block 19 to move along the edge of the roller seat 12, so that the distance between the two limit blocks 19 is equal to the width of the film. The motor 22 is started to drive the smoothing roller 21 to rotate through the bevel gear 23 to smooth the film.

[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[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, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A film smoothing device for a printing press, characterized by: The invention comprises a base (1); a bracket (8) is fixedly installed on the upper part of the base (1); a smoothing platform (2) is provided below the bracket (8) and is fixedly installed on the base (1); a fixed frame (10) is slidably installed in the bracket (8); a fixed plate (11) is fixedly installed at the bottom of the fixed frame (10); one side of the fixed plate (11) is set to be trapezoidal, and a roller seat (12) is fixedly installed on both inclined surfaces; a smoothing roller (21) is rotatably installed inside the roller seat (12); a slide rail (16) is fixedly installed on the upper part of the roller seat (12); a slider (17) is slidably installed inside the slider (16); the top of the slider (17) is fixedly installed on the connecting frame (18); one end of the bottom of the connecting frame (18) is slidably set in the slide rail (16), and the other end is set on the roller seat (12). The outer side of the seat (12), the upper part of the slide rail (16) is provided with a control plate (15), a hole is provided in the control plate (15), one end of the bottom of the connecting frame (18) is slidably provided in the hole of the control plate (15), and the other end is slidably installed with a limit block (19), the top of the limit block (19) is provided with a No. 2 spring (20) sleeved on the lower end of the connecting frame (18), both sides of the two ends of the bracket (8) are provided with support plates (3) fixedly installed on the base (1), one side of the upper end of the support plate (3) is provided with a through hole, and a mounting block (4) is slidably installed in the through hole, a pressure roller (6) is provided between the upper ends of the support plates (3), and both ends of the pressure roller (6) are rotatably installed in the mounting block (4) through bearings, and a reeling mechanism (24) is fixedly installed on the upper part of one end of the base (1).

2. The printing press film smoothing device according to claim 1, characterized in that: A vertical plate (25) is provided between both ends of the unwinding mechanism (24) and both sides of the caressing platform (2) and is fixedly mounted on the base (1). A No. 2 air cylinder (26) is fixedly mounted on the top of the vertical plate (25), and a mounting hole is provided on one side of the upper end thereof. A movable block (27) is slidably mounted inside the mounting hole. The piston rod of the No. 2 air cylinder (26) is fixedly mounted on the top of the movable block (27). A tensioning roller (28) is provided between the movable blocks (27). Both ends of the tensioning roller (28) are rotatably mounted inside the movable block (27) through bearings.

3. The printing press film smoothing device according to claim 1, characterized in that: The top of each support plate (3) is provided with a sliding hole, in which a sliding rod (5) is slidably installed. The lower end of the sliding rod (5) is fixedly installed on the top of the mounting block (4). The upper part of the mounting block (4) is provided with a No. 1 spring (7) which is sleeved on the sliding rod (5).

4. The printing press film smoothing device according to claim 1, characterized in that: A No. 1 air cylinder (9) is fixedly mounted on the top of the bracket (8), and a piston rod of the No. 1 air cylinder (9) is fixedly mounted on the top center of the fixing frame (10).

5. The printing press film smoothing device according to claim 1, characterized in that: A bidirectional cylinder (13) is fixedly mounted on one side of the upper portion of the fixed plate (11), connecting rods (14) are rotatably mounted on piston rods at both ends of the bidirectional cylinder (13), and the other ends of the connecting rods (14) are rotatably mounted on the same side of both ends of the control plate (15).

6. The printing press film smoothing device according to claim 1, characterized in that: A motor (22) is fixedly mounted on the top of the outer end of the roller seat (12), and a bevel gear (23) is fixedly mounted on the end adjacent to the rotating shaft of the motor (22) and the smoothing roller (21), and the bevel gears (23) are perpendicular to each other and meshed.

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