A paper pressing structure for a printing press

Abstract

This invention provides a paper-pressing structure for a printing press, including a support rod with multiple paper-pressing mechanisms mounted on it. Each paper-pressing mechanism includes a movable seat slidably connected to the outside of the support rod. A fixed frame is fixedly mounted on one side of the movable seat, and a movable frame is slidably connected to one side of the fixed frame. A connecting rod is slidably connected to the bottom of the movable frame, and the bottom end of the connecting rod passes through the movable frame and is fitted with a pressure roller. A top plate is fixedly mounted on the top of the connecting rod and slidably connected to the inside of the movable frame. A pressure sensor is fixedly mounted on the top side of the inner wall of the movable frame. This invention, through the cooperation of the connecting rod and the connecting frame, allows for the stable mounting of the pressure roller on the movable frame. The cooperation of the connecting rod, the top plate, and the pressure sensor allows for continuous monitoring of the pressure applied by the pressure roller to the paperboard, facilitating quick adjustment of the pressure roller's position by the operator based on the pressure sensor's monitoring data, thus increasing adjustment efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper pressing devices, and more specifically, it relates to a paper pressing structure for printing presses. Background Technology

[0002] Currently, most printing presses on the market include a paper feeding platform and a crossbeam. In actual operation, the edges of the cardboard tend to curl upwards. During printing, the curled cardboard can cause uneven adhesion, resulting in poor printing quality. It can even scratch the print head, thus affecting the printing quality. Therefore, a paper pressing device is needed to prevent the cardboard from curling up.

[0003] When printing on cardboard of different sizes, the height of the pressure rollers on the paper pressing device needs to be adjusted to regulate the pressure exerted on the cardboard. Excessive pressure can cause indentations on the cardboard, affecting the printing quality of the main board. Insufficient pressure, on the other hand, fails to effectively compress the cardboard. However, existing adjustment methods typically rely on operator experience, making it difficult to directly monitor the pressure applied by the rollers. Repeated adjustments of the roller height are necessary to achieve the appropriate pressure, resulting in low efficiency. Therefore, this paper researches and improves upon existing structures and their shortcomings to provide a paper pressing structure for printing presses with greater practical value. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a paper pressing structure for a printing press, which is achieved by the following specific technical means: A paper-pressing structure for a printing press includes a support rod with multiple paper-pressing mechanisms mounted on it. Each paper-pressing mechanism includes a movable seat slidably connected to the outside of the support rod. A fixed frame is fixedly mounted on one side of the movable seat, and a movable frame is slidably connected to one side of the fixed frame. A connecting rod is slidably connected to the bottom side of the movable frame, and the bottom end of the connecting rod passes through the movable frame and is fitted with a pressure roller. A top plate is fixedly mounted on the top of the connecting rod and slidably connected to the inside of the movable frame. A pressure sensor is fixedly mounted on the top side of the inner wall of the movable frame, and the top side of the top plate abuts against the detection end of the pressure sensor.

[0005] Furthermore, a spring is sleeved on the outer side of the connecting rod, and the upper and lower ends of the spring abut against the bottom side of the top plate and the bottom side of the inner wall of the movable frame, respectively.

[0006] Furthermore, a connecting frame is fixedly installed on the bottom end of the connecting rod, and a fixed shaft is rotatably connected to the pressure roller on the same axis. The two ends of the fixed shaft are respectively fixedly connected to the two sides of the inner wall of the connecting frame.

[0007] Furthermore, a bolt is threaded onto the top side of the fixed frame, and the bottom end of the bolt passes through the fixed frame and is rotatably connected to the top side of the movable frame through a connector.

[0008] Furthermore, a second bolt is threaded onto the top side of the movable seat, and the bottom end of the second bolt passes through one side of the movable seat and abuts against the top side of the support rod.

[0009] Furthermore, both ends of the support rod are slidably connected to fixed seats, and each fixed seat is provided with a waist-shaped groove. A bolt three is connected to the inner side of the waist-shaped groove, and one end of the bolt three passes through the waist-shaped groove and is threadedly connected to one end of the support rod.

[0010] Furthermore, a control panel is fixedly mounted on one side of one of the mounting bases, and the control panel is connected to multiple pressure sensors via wires.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, through the cooperation of connecting rod and connecting frame, can stably install the pressure roller on the movable frame. Through the cooperation of connecting rod, top plate and pressure sensor, the pressure applied by the pressure roller to the cardboard can be continuously monitored, so that the operator can quickly adjust the position of the pressure roller according to the monitoring data of the pressure sensor, thereby increasing the adjustment efficiency.

[0012] 2. This utility model, through the cooperation of the support rod and the fixed base, can realize the flexible adjustment of the horizontal height of the support rod, so that when printing on another size of cardboard is required, multiple sets of paper pressing mechanisms can be moved at the same time, and then the pressure rollers can be adjusted individually, which increases the convenience of product adjustment. 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 support rod structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the movable seat structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the fixed frame and the movable frame of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Support rod; 2. Movable seat; 3. Fixed frame; 4. Movable frame; 5. Connecting rod; 6. Pressure roller; 7. Top plate; 8. Pressure sensor; 9. Spring; 10. Connecting frame; 11. Bolt 1; 12. Bolt 2; 13. Fixed seat; 14. Bolt 3; 15. Control panel. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example:

[0022] As attached Figure 1 To be continued Figure 4 As shown: This utility model provides a paper pressing structure for a printing press, including a support rod 1. Multiple paper pressing mechanisms are installed on the support rod 1. Each paper pressing mechanism includes a movable seat 2 slidably connected to the outside of the support rod 1. A fixed frame 3 is fixedly installed on one side of the movable seat 2. A movable frame 4 is slidably connected to one side of the fixed frame 3. A connecting rod 5 is slidably connected to the bottom side of the movable frame 4. The bottom end of the connecting rod 5 passes through the movable frame 4 and is fitted with a pressure roller 6. A top plate 7 is fixedly installed on the top of the connecting rod 5 and slidably connected to the inside of the movable frame 4. A pressure sensor 8 is fixedly installed on the top side of the inner wall of the movable frame 4. The top side of the top plate 7 abuts against the detection end of the pressure sensor 8.

[0023] The connecting rod 5 is fitted with a spring 9 on its outer side. The upper and lower ends of the spring 9 abut against the bottom side of the top plate 7 and the bottom side of the inner wall of the movable frame 4, respectively, so that the top plate 7 can always abut against the pressure sensor 8.

[0024] The connecting rod 5 is fixedly mounted with a connecting frame 10 at its bottom end. The pressure roller 6 is rotatably connected to a fixed shaft, and the two ends of the fixed shaft are fixedly connected to the inner walls of the connecting frame 10, which can stably connect the pressure roller 6.

[0025] The top side of the fixed frame 3 is threaded with a bolt 11. The bottom end of the bolt 11 passes through the fixed frame 3 and is rotatably connected to the top side of the movable frame 4 through a connector, which can realize the flexible movement of the movable frame 4 and achieve self-locking after movement.

[0026] The top side of the movable seat 2 is threaded with a bolt 12. The bottom end of the bolt 12 passes through one side of the movable seat 2 and abuts against the top side of the support rod 1, so that the position of the movable seat 2 can be fixed by static friction between the bolt 12 and the support rod 1.

[0027] The support rod 1 has a fixed seat 13 slidably connected to both outer sides of its two ends. Each fixed seat 13 has a waist-shaped groove. A bolt 3 14 is connected to the inner side of the waist-shaped groove. One end of the bolt 3 14 passes through the waist-shaped groove and is threadedly connected to one end of the support rod 1, which can make it easy to adjust the horizontal height of the support rod 1.

[0028] One of the fixed bases 13 has a control panel 15 fixedly installed on one side. The control panel 15 is connected to multiple pressure sensors 8 through wires, which can facilitate the reading of data obtained by the multiple pressure sensors 8.

[0029] The working principle of this embodiment is as follows: When it is necessary to adjust the height of the pressure roller 6, first place the cardboard to be printed on the bottom side of the pressure roller 6, rotate the bolt 11 to drive the moving frame 4 to move, the moving frame 4 drives the pressure roller 6 to move and press the cardboard, the pressure roller 6 presses against the pressure sensor 8 through the connecting rod 5 and the top plate 7, and observe the pressure measured by the pressure sensor 8 through the control panel 15. When the pressure is appropriate, stop rotating the bolt 11 to complete the adjustment of the pressure roller 6.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A paper pressing structure for a printing press, comprising a support rod (1), wherein multiple paper pressing mechanisms are mounted on the support rod (1), and the paper pressing mechanism includes a movable seat (2) slidably connected to the outside of the support rod (1), characterized in that: A fixed frame (3) is fixedly installed on one side of the movable seat (2). A movable frame (4) is slidably connected to one side of the fixed frame (3). A connecting rod (5) is slidably connected to the bottom side of the movable frame (4). The bottom end of the connecting rod (5) passes through the movable frame (4) and is fitted with a pressure roller (6). A top plate (7) is fixedly installed on the top of the connecting rod (5) and is slidably connected to the inside of the movable frame (4). A pressure sensor (8) is fixedly installed on the top side of the inner wall of the movable frame (4). The top side of the top plate (7) abuts against the detection end of the pressure sensor (8).

2. The paper pressing structure for a printing machine according to claim 1, wherein: A spring (9) is sleeved on the outside of the connecting rod (5), and the upper and lower ends of the spring (9) abut against the bottom side of the top plate (7) and the bottom side of the inner wall of the movable frame (4), respectively.

3. The paper pressing structure for a printing machine according to claim 1, wherein: A connecting frame (10) is fixedly installed on the bottom end of the connecting rod (5). The pressure roller (6) is rotatably connected to a fixed shaft, and the two ends of the fixed shaft are fixedly connected to the inner walls of the connecting frame (10) respectively.

4. The paper pressing structure for a printing machine according to claim 1, wherein: The top side of the fixed frame (3) is threaded with a bolt (11), the bottom end of which passes through the fixed frame (3) and is rotatably connected to the top side of the movable frame (4) through a connector.

5. The paper pressing structure for a printing machine according to claim 1, wherein: The top side of the movable seat (2) is threaded with a bolt two (12), the bottom end of the bolt two (12) passes through one side of the movable seat (2) and abuts against the top side of the support rod (1).

6. The paper pressing structure for a printing machine according to claim 1, wherein: Both ends of the support rod (1) are slidably connected to fixed seats (13), and each fixed seat (13) is provided with a waist-shaped groove. The inner side of the waist-shaped groove is connected to a bolt three (14). One end of the bolt three (14) passes through the waist-shaped groove and is threadedly connected to one end of the support rod (1).

7. The paper pressing structure for a printing machine according to claim 6, wherein: A control panel (15) is fixedly mounted on one side of one of the fixed bases (13), and the control panel (15) is connected to multiple pressure sensors (8) via wires.

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