A receiving roller device for a printing press

Abstract

This utility model discloses a take-up pressure roller device for a printing press, comprising an adjustable conveying mechanism, a tensioning mechanism, a blower mechanism, an embossing mechanism, and a winding mechanism arranged sequentially. The guide assembly of the adjustable conveying mechanism can be adjusted according to the width of the printed material to ensure stable conveying; the tensioning roller assembly of the tensioning mechanism prevents the printed material from loosening and wrinkling; the blower mechanism dries the surface of the printed material to avoid blurring of the pattern; the upper and lower embossing rollers of the embossing mechanism emboss the printed material; and the winding mechanism, in conjunction with an unwinding plate, makes the winding smoother. The coordinated operation of all mechanisms in this device improves the quality and efficiency of material take-up and is suitable for processing printed materials of different specifications.

Description

Technical Field

[0001] This application relates to the field of printing equipment technology, and in particular to a receiving roller device for a printing press. Background Technology

[0002] In the printing industry, the material collection stage after printing is crucial, as its quality directly affects the final quality of the printed product and subsequent processing. Currently, existing printing press material collection roller devices suffer from numerous problems during operation.

[0003] Traditional take-up roller devices are poorly adaptable to printed materials of varying widths, and the guiding components cannot be flexibly adjusted, easily leading to misalignment of the printed materials during transport, affecting subsequent processing and rewinding quality. Simultaneously, printed materials often sag during transport, causing wrinkles and reducing flatness. Furthermore, residual moisture or incompletely dried ink on the printed surface can result in blurred patterns and smudging when directly embossed and rewound, affecting the appearance and quality of the printed material. Additionally, the lack of effective flattening measures during the rewinding process after embossing makes the rewound printed materials prone to curling and unevenness. Utility Model Content

[0004] This utility model mainly addresses the problems of poor adaptability of existing printing press take-up roller devices to printed materials of different widths, easy loosening and wrinkling of printed materials, insufficient surface drying affecting quality, and uneven winding, and provides a new take-up roller device for printing presses.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A take-up pressure roller device for a printing press includes an adjustable conveying mechanism, a tensioning mechanism, a blower mechanism, an embossing mechanism, and a winding mechanism arranged in sequence.

[0007] The adjustable conveying mechanism includes a conveyor frame on which a conveyor roller assembly and a guide assembly are mounted. The printed material passes through the guide assembly, and the guide assembly can be adjusted according to the width of the printed material.

[0008] The tensioning mechanism includes a tensioning frame, on which a tensioning roller assembly is mounted;

[0009] The blower mechanism includes a blower with its outlet facing upwards and a guide shroud installed at the outlet of the blower.

[0010] The embossing mechanism includes an embossing frame, and the embossing machine is equipped with an upper embossing roller and a lower embossing roller, which are arranged vertically and vertically respectively.

[0011] The winding mechanism includes a winding frame, on which a winding roller is rotatably connected, and the winding roller is driven by a winding motor.

[0012] Preferably, the conveyor roller assembly includes two first support frames mounted on the conveyor frame, one at the front and one at the rear. A first conveyor roller, a second conveyor roller, and a third conveyor roller are rotatably connected to the first support frame along the conveying direction of the printed matter. A support plate is provided between the second conveyor roller and the third conveyor roller.

[0013] Preferably, the guide assembly includes two longitudinally arranged slide rails, the front and rear ends of which are fixedly mounted on the first support frame. Two sliders are slidably connected to the slide rails, and a fixing plate is mounted on each slider. Guide wheels are rotatably connected to the upper opposite sides of the two fixing plates via U-shaped brackets. A threaded sleeve is installed in the middle of the bottom of the fixing plate, and a bidirectional screw is threadedly connected to the two threaded sleeves. One end of the bidirectional screw is rotatably connected to the first support frame, and the other end extends to the outside of the first support frame and is connected to an adjusting handwheel.

[0014] Preferably, a support rod is provided between the middle of the two slide rails, and a bearing seat is provided on the support rod. The bidirectional screw passes through the bearing seat and is rotatably connected to it.

[0015] Preferably, the tensioning roller assembly includes a first tensioning roller, a second tensioning roller, and a third tensioning roller arranged sequentially along the conveying direction of the printed matter. The first tensioning roller is rotatably connected to the upper part of the tensioning frame on the side near the conveyor frame, and the second and third tensioning rollers are rotatably connected to the top two sides of the tensioning frame, respectively.

[0016] Preferably, the embossing frame is installed on the side of the tensioning frame away from the conveyor frame. The embossing frame has an L-shaped structure. The lower embossing roller is rotatably connected to the side of the embossing frame close to the tensioning frame. A fixing rod is installed on the top of the embossing frame. A second support frame is connected to the fixing rod through a sliding sleeve. An upper embossing roller is rotatably connected to the second support frame. The sliding sleeve is fixedly connected to the fixing rod through a locking bolt threaded to the side wall. An embossing motor that is drivenly connected to the upper embossing roller is provided on one side of the second support frame.

[0017] Preferably, a spreading plate is installed at the bottom of the second support frame, and the printed material passes between the upper embossing roller and the lower embossing roller and then reaches the take-up roller through one side of the spreading plate.

[0018] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0019] (1) The present invention has an adjustable conveying mechanism, the guide component of which can be adjusted according to the width of the printed matter. By rotating the adjustment handwheel, the bidirectional screw is driven to rotate, so that the two threaded sleeves drive the fixed plate and the guide wheel to slide on the slide rail, thereby adapting to the conveying of printed matter of different widths, effectively preventing the printed matter from shifting during the conveying process, and improving the stability of the conveying.

[0020] (2) The tensioning roller group in the tensioning mechanism of this utility model can tension the printed matter, avoid the printing matter from becoming loose and wrinkled during the conveying process, ensure the flatness of the printed matter, and provide a good foundation for subsequent embossing and winding.

[0021] (3) In this utility model, the blower mechanism blows air upward through the blower and the air guide hood, which can dry the surface of the printed matter, speed up the drying speed of the ink or water on the surface of the printed matter, prevent problems such as blurry patterns and staining during embossing and rewinding, and improve the quality of the printed matter.

[0022] (4) During the winding process, the flat plate of this utility model can flatten the printed matter, making the printed matter flatter after winding, reducing curling and improving winding quality.

[0023] (5) The present invention has a compact structure and coordinated mechanisms, which can realize a series of operations such as stable conveying, tensioning, air drying, embossing and rewinding of printed materials, thereby improving the working efficiency and product quality of the printing press receiving process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a receiving roller device for a printing machine according to the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the adjustable conveying mechanism in the receiving roller device of a printing machine according to this utility model.

[0026] Figure 3 This is a top view of the adjustable conveying mechanism in the receiving roller device of a printing machine according to this utility model;

[0027] Figure 4 This is an exploded view of the adjustable conveying mechanism in the receiving roller device of a printing machine according to this utility model.

[0028] Figure 5 This is a schematic diagram of the tensioning mechanism, embossing mechanism and winding mechanism in the take-up pressure roller device of a printing machine according to this utility model;

[0029] Figure 6 This is a schematic diagram of the embossing mechanism in the receiving roller device of a printing machine according to this utility model.

[0030] Reference numerals: 1-Conveyor frame, 2-Printed material, 3-Tensioning frame, 4-Blower, 5-Guide hood, 6-Embossing frame, 7-Upper embossing roller, 8-Lower embossing roller, 9-Rewinding frame, 10-Rewinding roller, 11-Rewinding motor, 12-First support frame, 13-First conveyor roller, 14-Second conveyor roller, 15-Third conveyor roller, 16-Support plate, 17-Slide rail, 18-Slider, 19-Fixing plate, 20-U-shaped bracket, 21-Guide wheel, 22-Threaded sleeve, 23-Double-acting screw, 24-Adjusting handwheel, 25-Support rod, 26-Bearing seat, 27-First tensioning roller, 28-Second tensioning roller, 29-Third tensioning roller, 30-Fixing rod, 31-Sliding sleeve, 32-Second support frame, 33-Locking bolt, 34-Embossing motor, 35-Unfolding plate. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0032] like Figure 1 As shown, this utility model discloses a technical solution: a receiving pressure roller device for a printing machine, comprising an adjustable conveying mechanism, a tensioning mechanism, a blower mechanism, an embossing mechanism, and a winding mechanism arranged in sequence.

[0033] like Figure 2 , 3 As shown, the adjustable conveying mechanism includes a conveyor frame 1, on which a conveyor roller assembly and a guide assembly are mounted. The conveyor roller assembly includes two first support frames 12, welded or bolted to the side walls of the conveyor frame 1. A first conveyor roller 13, a second conveyor roller 14, and a third conveyor roller 15 are sequentially rotatably connected to the first support frame 12 along the conveying direction of the printed material 2. A support plate 16 is provided between the second conveyor roller 14 and the third conveyor roller 15. The front and rear ends of the support plate 16 are bolted to the first support frame 12. The support plate 16 provides support for the printed material 2, preventing it from sagging during conveying. Figure 4As shown, the guide assembly includes two longitudinally arranged slide rails 17. The front and rear ends of the slide rails 17 are fixedly installed on the front and rear first support frames 12 by bolts. Two sliders 18 are slidably connected to the slide rails 17. Each slider 18 is fixedly installed with a fixing plate 19 by bolts. The upper opposite sides of the two fixing plates 19 are rotatably connected to guide wheels 21 by U-shaped brackets 20. The guide wheels 21 are connected to the U-shaped brackets 20 by vertically arranged rotating shafts. In this embodiment, each fixing plate 19 is fixedly installed with a U-shaped bracket 20 on both the left and right sides by bolts. A threaded sleeve 22 is installed in the middle of the bottom of the fixing plate 19 by bolts. Two threaded sleeves 22 are threadedly connected to a bidirectional screw 23, that is, the thread directions on both sides of the bidirectional screw 23 are opposite. The rear end of the bidirectional screw 23 is rotatably connected to the first support frame 12 by a bearing. The other end extends to the outside of the first support frame 12 and is fixedly connected to an adjusting handwheel 24. A support rod 25 is welded or bolted between the middle of the two slide rails 17. A bearing seat 26 is fixedly installed on the support rod 25 by bolts. A bidirectional screw 23 passes through the bearing seat 26 and is rotatably connected to it. The bearing seat 26 can support and stabilize the bidirectional screw 23. When it is necessary to adjust the guide assembly according to the width of the printed matter 2, the adjusting handwheel 24 is turned to drive the bidirectional screw 23 to rotate, so that the two threaded sleeves 22 move towards or away from each other on the bidirectional screw 23, thereby driving the fixed plate 19 and the guide wheel 21 to slide on the slide rail 17, realizing the adjustment of the distance between the guide wheels 21. In this embodiment, the slide rail 17 adopts a slide rail with a T-shaped protrusion at the top, and the bottom of the slider 18 is provided with a matching groove, but it is not limited to the above structure, as long as the slider 18 can move back and forth along the slide rail 17.

[0034] like Figure 5 As shown, the tensioning mechanism includes a tensioning frame 3, on which a tensioning roller assembly is mounted. The tensioning roller assembly includes a first tensioning roller 27, a second tensioning roller 28, and a third tensioning roller 29 arranged sequentially along the conveying direction of the printed material 2. The two ends of the first tensioning roller 27 are rotatably connected to the upper part of the tensioning frame 3 near the conveyor frame 1. The second tensioning roller 28 and the third tensioning roller 29 are rotatably connected to the top two sides of the tensioning frame 3, respectively. The printed material 2 passes sequentially over the first tensioning roller 27, the second tensioning roller 28, and the third tensioning roller 29. Through the arrangement of the tensioning roller assembly, a certain tension can be applied to the printed material 2, achieving a tensioning effect.

[0035] Specifically, the blowing mechanism includes a blower 4, the bottom of which is bolted to the bottom of the tensioning frame 3. The outlet of the blower 4 faces upward, and a guide shroud 5 is fixedly installed at the outlet of the blower 4 via a flange. The two sides of the guide shroud 5 correspond to the second tensioning roller 28 and the third tensioning roller 29. The guide shroud 5 can concentrate the air blown out by the blower 4 and direct it to the surface of the printed matter 2, thereby accelerating the drying speed of the surface of the printed matter 2.

[0036] like Figure 5 , 6 As shown, the embossing mechanism includes an embossing frame 6, which is bolted to the side of the tensioning frame 3 away from the conveying frame 1. The embossing frame 6 has an L-shaped structure. The embossing frame 6 is provided with an upper embossing roller 7 and a lower embossing roller 8. The length of the upper embossing roller 7 is greater than the length of the lower embossing roller 8. The lower embossing roller 8 is rotatably connected to the side of the embossing frame 6 near the tensioning frame 3. A longitudinally arranged fixing rod 30 is fixedly installed on the top of the embossing frame 6 by bolts. A second support frame 32 is connected to the fixing rod 30 by a sliding sleeve 31. The upper embossing roller 7 is rotatably connected to the second support frame 32 by a bearing. The sliding sleeve 31 is fixedly connected to the fixing rod 30 by a locking bolt 33 threaded to the side wall. In this embodiment, there are two sliding sleeves 31, one at the front and one at the back. The bottom of the sliding sleeve 31 is fixedly connected to the side wall of the second support frame 32 by bolts. Each sliding sleeve 31 has a locking bolt 33 threadedly connected to its side wall and top. An embossing motor 34, which is connected to the upper embossing roller 7, is fixedly installed on one side of the second support frame 32 by bolts. When the position of the upper embossing roller 7 needs to be adjusted, loosen the locking bolt 33, move the sliding sleeve 31 to the position on the fixed rod 30, and drive the second support frame 32 and the upper embossing roller 7 to move back and forth. After adjusting to the appropriate position, tighten the locking bolt 33 to fix the position of the upper embossing roller 7. The embossing motor 34 drives the upper embossing roller 7 to rotate, and cooperates with the lower embossing roller 8 to emboss the printed matter 2. A horizontal spreading plate 35 is fixedly installed at the bottom of the second support frame 32 by bolts. The printed matter 2 passes between the upper embossing roller 7 and the lower embossing roller 8 and reaches the take-up roller 10 through one side of the spreading plate 35. The spreading plate 35 can flatten the embossed printed matter 2. The side of the spreading plate 35 facing the upper embossing roller 7 has an arc part.

[0037] Specifically, the winding mechanism includes a winding frame 9, on which a longitudinally arranged winding roller 10 is rotatably connected via bearings. The winding roller 10 is connected to a winding motor 11, which drives the winding roller 10 to rotate and wind up the processed printed matter 2.

[0038] This utility model provides a take-up pressure roller device for a printing press, the working process of which is as follows: After the printed material 2 is output from the printing press, it enters the adjustable conveying mechanism and is conveyed by the conveying roller group, while moving forward stably under the guidance of the guiding component. Then, the printed material 2 enters the tensioning mechanism, and after being tensioned by the tensioning roller group, it is conveyed to the top of the blower mechanism, where the surface is air-dried under the action of the blower 4 and the guide air hood 5. Next, the printed material 2 enters the embossing mechanism, where the embossing operation is completed with the cooperation of the upper embossing roller 7 and the lower embossing roller 8. After embossing, the printed material 2 is flattened by the unfolding plate 35 and conveyed to the winding mechanism, where the winding motor 11 drives the winding roller 10 to rotate for winding.

[0039] It should be noted that the blower 4, winding motor 11, and embossing motor 34 in this application are all existing technologies and can be purchased from the market. Their specific structures and working principles will not be described in detail here.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A receiving roller device for a printing press, characterized in that: It includes an adjustable conveying mechanism, a tensioning mechanism, a blower mechanism, an embossing mechanism, and a winding mechanism arranged in sequence; The adjustable conveying mechanism includes a conveyor frame (1), on which a conveyor roller assembly and a guide assembly are mounted. The printed matter (2) passes through the guide assembly, and the guide assembly can be adjusted according to the width of the printed matter (2). The tensioning mechanism includes a tensioning frame (3), on which a tensioning roller assembly is mounted; The blower mechanism includes a blower (4), the outlet of the blower (4) is arranged facing upward, and a guide hood (5) is installed at the outlet of the blower (4); The embossing mechanism includes an embossing frame (6), and the embossing machine is provided with an upper embossing roller (7) and a lower embossing roller (8), which are arranged vertically and vertically respectively; the winding mechanism includes a winding frame (9), and a winding roller (10) is rotatably connected to the winding frame (9), and the winding roller (10) is drivenly connected to the winding motor (11).

2. The receiving roller device for a printing press according to claim 1, characterized in that: The conveying roller assembly includes two first support frames (12) mounted on the conveying frame (1) at the front and rear. The first support frame (12) is rotatably connected with a first conveying roller (13), a second conveying roller (14) and a third conveying roller (15) in sequence along the conveying direction of the printed matter (2). A support plate (16) is provided between the second conveying roller (14) and the third conveying roller (15).

3. The receiving roller device for a printing press according to claim 2, characterized in that: The guide assembly includes two longitudinally arranged slide rails (17). The front and rear ends of the slide rails (17) are fixedly installed on the first support frame (12). Two sliders (18) are slidably connected on the slide rails (17). Each slider (18) is equipped with a fixing plate (19). The upper opposite sides of the two fixing plates (19) are rotatably connected to guide wheels (21) through U-shaped brackets (20). A threaded sleeve (22) is installed in the middle of the bottom of the fixing plate (19). Two double screws (23) are threadedly connected to the two threaded sleeves (22). One end of the double screw (23) is rotatably connected to the first support frame (12), and the other end extends to the outside of the first support frame (12) and is connected to an adjusting handwheel (24).

4. The receiving roller device for a printing press according to claim 3, characterized in that: A support rod (25) is provided between the middle of the two slide rails (17), and a bearing seat (26) is provided on the support rod (25). The bidirectional screw (23) passes through the bearing seat (26) and is rotatably connected to it.

5. The receiving roller device for a printing press according to claim 1, characterized in that: The tensioning roller assembly includes a first tensioning roller (27), a second tensioning roller (28), and a third tensioning roller (29) arranged sequentially along the conveying direction of the printed matter (2). The first tensioning roller (27) is rotatably connected to the upper part of the tensioning frame (3) near the conveying frame (1), and the second tensioning roller (28) and the third tensioning roller (29) are rotatably connected to the top two sides of the tensioning frame (3), respectively.

6. The receiving roller device for a printing press according to claim 1, characterized in that: The embossing frame (6) is installed on the side of the tensioning frame (3) away from the conveying frame (1). The embossing frame (6) has an L-shaped structure. The lower embossing roller (8) is rotatably connected to the side of the embossing frame (6) close to the tensioning frame (3). A fixing rod (30) is installed on the top of the embossing frame (6). A second support frame (32) is connected to the fixing rod (30) through a sliding sleeve (31). An upper embossing roller (7) is rotatably connected to the second support frame (32). The sliding sleeve (31) is fixedly connected to the fixing rod (30) through a locking bolt (33) threaded to the side wall. An embossing motor (34) is provided on one side of the second support frame (32) and is drivenly connected to the upper embossing roller (7).

7. The receiving roller device for a printing press according to claim 6, characterized in that: The bottom of the second support frame (32) is equipped with a spreading plate (35). The printed material (2) passes between the upper embossing roller (7) and the lower embossing roller (8) and then reaches the take-up roller (10) through one side of the spreading plate (35).

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