Paper feeding device for printing machine

Abstract

The utility model relates to the technical field of printing machines, and discloses a paper feeding device for a printing machine, which comprises a conveying belt, the outer walls of the two sides of the conveying belt are fixedly connected with a guide rail frame through a plurality of fixing frames, the outer wall of the bottom of the guide rail frame is provided with two deviation rectifying plates, and the outer wall of the middle section of the top of the guide rail frame is fixedly connected with a fixing plate; the outer wall of the bottom of the fixing plate is provided with an executing mechanism for driving the two deviation rectifying plates to move relatively to rectify deviation, the executing mechanism comprises a first connecting rod rotationally connected to the outer wall of the middle of the bottom of the fixing plate, and the two ends of the first connecting rod are rotationally connected with second connecting rods. The distance between the two deviation rectifying plates is adjusted, so that paper can be accurately rectified when driven by the conveying belt to be conveyed, it is ensured that the paper cannot deviate in the conveying process, the printing quality and efficiency are improved, and operation is easy, convenient and rapid.

Description

Technical Field

[0001] The present application relates to the technical field of printing presses, and in particular to a paper feeding device for a printing press. Background Art

[0002] A printing press is a machine used to print text and images. It typically consists of mechanisms such as plate loading, inking, embossing, and paper feeding. During the printing process, paper must be precisely transported to the printing position to ensure accurate printing of text and images. However, in practice, paper can easily shift during transport, preventing the printing plate from accurately placing text or images on the paper, thus affecting printing quality and efficiency. Therefore, a paper feeding device for a printing press was proposed to address this issue. Utility Model Content

[0003] In order to solve the problem that paper is easily deflected during transportation, resulting in the printing plate being unable to accurately print text or images at the predetermined position on the paper, thereby affecting printing quality and efficiency, the present application provides a paper feeding device for a printing press.

[0004] The present application provides a paper feeding device for a printing press adopting the following technical solution:

[0005] A paper feeding device for a printing press, comprising a conveyor belt, wherein the outer walls on both sides of the conveyor belt are fixedly connected to guide rail frames via a plurality of fixing frames, two deflection correction plates are mounted on the bottom outer wall of the guide rail frames, a fixing plate is fixedly connected to the top middle outer wall of the guide rail frames, and an actuator for driving the two deflection correction plates to move relative to each other for deflection correction is mounted on the bottom outer wall of the fixing plate;

[0006] The actuator includes a connecting rod 1 rotatably connected to the middle outer wall of the bottom of the fixed plate, the two ends of the connecting rod 1 are rotatably connected to the connecting rod 2, the top middle outer walls of the two correcting plates are fixedly connected to a fixed shaft, and the ends of the two connecting rods 2 away from the connecting rod 1 are rotatably connected to the fixed shaft.

[0007] Preferably, an electric push rod is fixedly mounted on the top outer wall of one of the correcting plates, the electric push rod is located above the fixed shaft and the second connecting rod, and the output end of the electric push rod is fixedly connected to the bottom outer wall of the fixed plate through a fixing piece.

[0008] Preferably, the outer wall of the guide rail frame is slidably connected to a plurality of sliders, and the plurality of sliders are respectively fixedly connected to the top outer walls of the two correcting plates.

[0009] Preferably, grooves are formed on the opposite outer walls of the two deflection-correcting plates, and a plurality of deflection-correcting rollers are rotatably connected to the inner walls of the grooves. The plurality of deflection-correcting rollers are evenly distributed in a linear array with equal spacing.

[0010] Preferably, two brackets are fixedly connected to the bottom outer wall of the conveyor belt.

[0011] In summary, this application has the following beneficial technical effects:

[0012] The actuator can drive the two deflection correction plates to move relative to each other and adjust the distance between them, so that the paper can be accurately corrected when it is transported by the conveyor belt, ensuring that the paper will not deviate during transportation, thereby improving printing quality and efficiency and making the operation simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0014] Figure 2 is a partial cross-sectional view of an embodiment of the application;

[0015] Figure 3 for Figure 2 A magnified schematic diagram of the structure in the middle.

[0016] Explanation of the accompanying reference numerals: 1. Conveyor belt; 2. Bracket; 3. Fixed frame; 4. Guide rail frame; 5. Slider; 6. Correction plate; 7. Groove; 8. Correction roller; 9. Electric push rod; 10. Fixed plate; 11. Connecting rod 1; 12. Connecting rod 2; 13. Fixed shaft; 14. Fixed part. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 This application is described in further detail.

[0018] The present application embodiment discloses a paper feeding device for a printing press. Figure 1-3 A paper feeding device for a printing press includes a conveyor belt 1, with guide rail frames 4 fixedly connected to the outer walls of both sides of the conveyor belt 1 through multiple fixing frames 3, two correcting plates 6 are installed on the bottom outer walls of the guide rail frames 4, a fixing plate 10 is fixedly connected to the outer wall of the top middle section of the guide rail frames 4, and an actuator for driving the two correcting plates 6 to move relative to each other for correcting the deviation is installed on the bottom outer wall of the fixing plate 10;

[0019] The actuator includes a connecting rod 11 rotatably connected to the middle outer wall of the bottom of the fixed plate 10, and the two ends of the connecting rod 11 are rotatably connected to the connecting rod 2 12. The top middle outer walls of the two correcting plates 6 are fixedly connected to the fixed shaft 13, and the ends of the two connecting rods 12 away from the connecting rod 11 are rotatably connected to the fixed shaft 13.

[0020] An electric push rod 9 is fixedly installed on the top outer wall of one of the correcting plates 6. The electric push rod 9 is located above the fixed shaft 13 and the second connecting rod 12. The output end of the electric push rod 9 is fixedly connected to the bottom outer wall of the fixed plate 10 through a fixing member 14.

[0021] The outer wall of the guide rail frame 4 is slidably connected to multiple sliders 5, and the multiple sliders 5 are respectively fixedly connected to the top outer walls of the two correcting plates 6. When the two correcting plates 6 move, the sliders 5 are driven to slide on the outer wall of the guide rail frame 4, which plays a guiding and limiting role on the correcting plates 6, so that the correcting plates 6 can move stably linearly.

[0022] Grooves 7 are formed on the opposite outer walls of the two deflection-correcting plates 6 , and a plurality of deflection-correcting rollers 8 are rotatably connected to the inner walls of the grooves 7 . The plurality of deflection-correcting rollers 8 are evenly distributed in a linear array with equal spacing.

[0023] Two brackets 2 are fixedly connected to the bottom outer wall of the conveyor belt 1. The two brackets 2 are respectively close to the front and rear ends of the conveyor belt 1 and are used to stably support the conveyor belt 1.

[0024] The implementation principle of a paper feeding device for a printing press in the embodiment of the present application is as follows: when in use, the conveyor belt 1 is placed at the feed port of the printing press, the paper is laid on the conveyor belt 1, the conveyor belt 1 is started, and the conveyor belt 1 drives the paper to move and transport. During the transportation process, the electric push rod 9 is started, and the output end of the electric push rod 9 contracts, pulling one correcting plate 6 to move inward. At this time, the correcting plate 6 pushes the connecting rod 1 11 to rotate through the connecting rod 2 12, and the other end of the connecting rod 1 11 pulls the other connecting rod 2 12 to move inward, and the other connecting rod 2 12 pulls the other correcting plate 6 to move inward synchronously through the fixed shaft 13, and the two correcting plates 6 move synchronously relative to each other until the two correcting plates 6 contact the edge of the paper, and then the paper is corrected to ensure that the paper will not deviate when entering the printing press, thereby improving printing quality and efficiency. During the paper transportation process, it will contact multiple correcting rollers 8, and the rotation of multiple correcting rollers 8 can convert the direct friction between the correcting plate 6 and the paper into rolling friction, thereby reducing friction and facilitating the movement and transportation of the paper.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0026] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0028] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A paper feeding device for a printing press, comprising a conveyor belt (1), characterized in that: The outer walls on both sides of the conveyor belt (1) are fixedly connected to the guide rail frame (4) through a plurality of fixing frames (3); the bottom outer wall of the guide rail frame (4) is equipped with two correcting plates (6); the top middle outer wall of the guide rail frame (4) is fixedly connected to a fixing plate (10); the bottom outer wall of the fixing plate (10) is equipped with an actuator for driving the two correcting plates (6) to move relative to each other for correcting the deviation; The actuator includes a connecting rod (11) rotatably connected to the middle outer wall of the bottom of the fixed plate (10), the two ends of the connecting rod (11) are rotatably connected to the connecting rod (12), the top middle outer walls of the two correcting plates (6) are fixedly connected to a fixed shaft (13), and the ends of the two connecting rods (12) away from the connecting rod (11) are rotatably connected to the fixed shaft (13).

2. A paper feeding device for a printing press according to claim 1, characterized in that: An electric push rod (9) is fixedly mounted on the top outer wall of one of the deflection-correcting plates (6). The electric push rod (9) is located above the fixed shaft (13) and the second connecting rod (12). The output end of the electric push rod (9) is fixedly connected to the bottom outer wall of the fixed plate (10) through a fixing member (14).

3. The paper feeding device for a printing press according to claim 1, characterized in that: The outer wall of the guide rail frame (4) is slidably connected to a plurality of sliders (5), and the plurality of sliders (5) are respectively fixedly connected to the top outer walls of the two deviation-correcting plates (6).

4. The paper feeding device for a printing press according to claim 1, characterized in that: The opposite outer walls of the two deflection-correcting plates (6) are provided with grooves (7), and the inner walls of the grooves (7) are rotatably connected to a plurality of deflection-correcting rollers (8), which are evenly distributed in a linear array with equal spacing.

5. The paper feeding device for a printing press according to claim 1, characterized in that: Two brackets (2) are fixedly connected to the bottom outer wall of the conveyor belt (1).

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