Paper fixing mechanism for printing

Abstract

The utility model relates to the technical field of printing, and belongs to a paper fixing mechanism for printing. Comprising a base, a paper pressing roller, a supporting frame and a corner pressing assembly are sequentially arranged on the base, the paper pressing roller comprises a roller shaft, the two ends of the roller shaft are fixedly connected with the base, a paper pressing mechanism is arranged on the supporting frame, the paper pressing mechanism comprises a paper pressing assembly and an adjusting assembly, a conveying belt is arranged on the base, and paper arranging assemblies are arranged on the two sides of the conveying belt. Paper can be integrally flattened through the paper pressing mechanism, so that the paper is stably conveyed, corners at the front end of the paper in the conveying process are flattened through the paper head pressing piece, it is guaranteed that the corners at the front end of the paper cannot be bent or tilted when entering the printing mechanism, and then subsequent printing is guaranteed; friction and collision of the side edges of the paper can be reduced through the paper arranging assembly, the paper is effectively prevented from inclining in the conveying process, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, and belongs to a paper fixing mechanism for printing. Background Art

[0002] A machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate and mounted on a printing press. Then, ink is applied to the places with text and images on the printing plate manually or by a printing press, and then directly or indirectly transferred to paper or other substrates, thereby replicating a printed product identical to the printing plate.

[0003] Before the printing process, the paper needs to be placed in a paper box and then conveyed to the printing machine. However, since paper is often light, thin, and easy to bend, it is easy to warp and curl during the conveying process, which affects the printing and causes the printed content to be skewed and blurred. This kind of situation not only wastes paper, but also reduces printing efficiency. In the current related devices, the main purpose is to fix the paper as a whole so that the paper can be conveyed stably. However, when the paper enters the printing mechanism, its front corners are more likely to be bent. In addition, the paper is prone to skew due to friction and other reasons during the forward movement, which is also not conducive to printing. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a printing paper fixing mechanism.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The present application provides a printing paper fixing mechanism, including a base, on which a paper pressing roller, a support frame and an angle pressing assembly are sequentially arranged, the paper pressing roller includes a roller shaft, and both ends of the roller shaft are fixedly connected to the base, the support frame is provided with a paper pressing mechanism, the paper pressing mechanism includes a paper pressing assembly and an adjustment assembly, the base is provided with a conveyor belt, and paper straightening assemblies are provided on both sides of the conveyor belt.

[0007] Preferably, a paper pressing roller is provided on the roller shaft, a bearing is provided between the paper pressing roller and the roller shaft, and the paper pressing roller and the roller shaft are rotatably connected via the bearing.

[0008] Preferably, the angle pressing assembly includes a connecting shaft and a connecting rod, both ends of the connecting shaft are connected to the base, the connecting shaft is movably connected to the base, a plurality of paper head pressing plates are provided on the connecting shaft, both ends of the connecting rod are fixedly connected to the base, a plurality of connecting blocks are provided on the connecting rod, a connecting ring is provided at the lower end of the connecting block, a first spring is connected to the connecting ring, and the other end of the first spring is connected to the paper head pressing plate.

[0009] Preferably, the paper pressing assembly includes a placement plate and a support member, the placement plate is provided with a accommodating cavity, the support member is connected to the accommodating cavity, a limit block is provided in the accommodating cavity, a second spring is coaxially provided on the support member, a stop block is provided at the lower end of the support member, the second spring is located between the limit block and the stop block, a connecting plate is provided at the lower end of the stop block, a rotating shaft is provided on the connecting plate, and the rotating shaft is movably connected to a roller through an axis hole.

[0010] Preferably, the adjustment assembly includes a transmission screw, one end of which is connected to a drive motor via a coupling, the drive motor is fixedly connected to a support frame via a connecting frame, a movable groove is provided on the support frame, a slider is provided at the end of the mounting plate, the slider and the movable groove are movably connected, and the transmission screw and the slider are movably connected through threaded cooperation.

[0011] Preferably, the paper straightening assembly comprises a mounting shaft, wherein the mounting shaft is arranged on a base, a bearing sleeve is provided on the mounting shaft, and a paper straightening belt is connected to the bearing sleeve.

[0012] Compared with the prior art, the present invention provides a printing paper fixing mechanism, which has the following beneficial effects:

[0013] 1. The utility model is provided with a paper pressing mechanism and a corner pressing assembly. The paper pressing mechanism can flatten the paper as a whole so that the paper can be transported stably. The paper head pressing sheet can flatten the front corners of the paper during the transport process to ensure that the front corners of the paper will not bend or warp when entering the printing mechanism, thereby ensuring subsequent printing.

[0014] 2. The utility model is provided with a paper straightening assembly. During the paper feeding process, the paper straightening assembly can reduce the friction and collision of the side of the paper, effectively avoiding the paper from being skewed during the transmission process, and improving the practicality of the device.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial enlarged view of the utility model, which is a structural schematic diagram of the angle pressing component;

[0018] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0019] Figure 4 for Figure 1 Partial cross-section at point B in the middle;

[0020] Figure 5for Figure 1 A partial enlarged view of point C in the middle;

[0021] In the figure: 1, base; 2, paper pressing roller; 21, roller shaft; 22, paper pressing roller; 23, bearing; 3, support frame; 4, angle pressing assembly; 41, connecting shaft; 42, paper head pressing plate; 43, first spring; 44, connecting rod; 45, connecting block; 46, connecting ring; 5, paper pressing mechanism; 51, paper pressing assembly; 511, placement plate; 512, support member; 513, accommodating chamber; 514, limit block; 515, second spring; 516, stop block; 517, connecting plate; 518, rotating shaft; 519, roller; 52, adjustment assembly; 521, transmission screw; 522, driving motor; 523, connecting frame; 524, movable groove; 525, slider; 6, conveyor belt; 7, paper straightening assembly; 71, mounting shaft; 72, bearing sleeve; 73, paper straightening belt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present invention more clear, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of the present invention. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0023] See also Figure 1 The present invention provides a printing paper fixing mechanism, including a base 1, on which a paper pressing roller 2, a support frame 3 and a pressing angle component 4 are sequentially arranged, the paper pressing roller 2 includes a roller shaft 21, and both ends of the roller shaft 21 are fixedly connected to the base 1, the support frame 3 is provided with a paper pressing mechanism 5, and the paper pressing mechanism 5 includes a paper pressing component 51 and an adjusting component 52, the base 1 is provided with a conveyor belt 6, and paper straightening components 7 are provided on both sides of the conveyor belt 6.

[0024] See also Figure 1 Specifically, a paper pressing roller 22 is provided on the roller shaft 21, and a bearing 23 is provided between the paper pressing roller 22 and the roller shaft 21. The paper pressing roller 22 is rotatably connected to the roller shaft 21 through the bearing 23. During the transmission of printing paper, the printing paper is in contact with the paper pressing roller 22, and the paper pressing roller 22 rotates synchronously with the movement of the printing paper, so as to flatten the printing paper during the transmission process.

[0025] See also Figure 2Specifically, the angle pressing assembly 4 includes a connecting shaft 41 and a connecting rod 44, both ends of the connecting shaft 41 are connected to the base 1, the connecting shaft 41 is movably connected to the base 1, and a plurality of paper head pressing plates 42 are arranged on the connecting shaft 41. For paper of intolerant thickness, the connecting shaft 41 can drive the paper head pressing plates 42 to rotate by rotating, thereby the paper pressing gap can be adaptively adjusted according to the thickness of the paper, and the two ends of the connecting rod 44 are fixedly connected to the base 1, and a plurality of connecting blocks 45 are arranged on the connecting rod 44, and a connecting ring 46 is arranged at the lower end of the connecting block 45, and a first spring 43 is connected to the connecting ring 46, and the other end of the first spring 43 is connected to the paper head pressing plate 42, and the paper head pressing plate 42 is set with an arc, and the paper enters the printing press smoothly to prevent the front corner of the paper from bending and warping, and the first spring 43 plays a shock absorbing role to ensure stable pressure, and for thicker paper, the pressure applied by the paper head pressing plate 42 to the paper can be increased to ensure stable paper transmission.

[0026] See also Figure 3 Specifically, the paper pressing assembly 51 includes a placement plate 511 and a support member 512. A accommodating cavity 513 is provided in the placement plate 511. The support member 512 is connected to the accommodating cavity 513. A limit block 514 is provided in the accommodating cavity 513. A second spring 515 is coaxially provided on the support member 512. A stop block 516 is provided at the lower end of the support member 512. The second spring 515 is located between the limit block 514 and the stop block 516. A connecting plate 517 is provided at the lower end of the stop block 516. A rotating shaft 518 is provided on the connecting plate 517. The rotating shaft 518 is movably connected to a roller 519 through an axial hole. The roller 519 is in contact with the paper surface. When the printed paper moves, the roller 519 presses on the printed paper to ensure that the paper moves forward stably. The second spring 515 plays a buffering role, which can keep the pressure stable.

[0027] See also Figure 4 Specifically, the adjusting assembly 52 includes a transmission screw 521, one end of which is connected to a driving motor 522 through a coupling, and the driving motor 522 is fixedly connected to the support frame 3 through a connecting frame 523. A movable groove 524 is provided on the support frame 3, and a slider 525 is provided at the end of the placement plate 511. The slider 525 and the movable groove 524 are movably connected, and the transmission screw 521 and the slider 525 are movably connected through threaded cooperation. The adjusting assembly 52 is used to adjust the height of the paper pressing assembly 51 to adapt to the fixing of printing paper with large thickness differences.

[0028] See also Figure 5Specifically, the paper straightening assembly 7 includes a mounting shaft 71, and the mounting shaft 71 is arranged on the base 1. A bearing sleeve 72 is provided on the mounting shaft 71, and a paper straightening belt 73 is connected to the bearing sleeve 72. The paper straightening belt 73 can rotate with the mounting shaft 71 through the bearing sleeve 72. When the printing paper is in transmission, when its two sides contact the paper straightening belt 73, the friction force can drive the paper straightening belt 73 to rotate. In this process, it can prevent the side edge of the paper from being skewed due to friction or collision, and the paper straightening belt 73 can limit and straighten the paper.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A printing paper fixing mechanism, characterized in that: The invention comprises a base (1), wherein a paper pressing roller (2), a support frame (3) and an angle pressing assembly (4) are sequentially arranged on the base (1), wherein the paper pressing roller (2) comprises a roller shaft (21), and both ends of the roller shaft (21) are fixedly connected to the base (1), wherein a paper pressing mechanism (5) is arranged on the support frame (3), and wherein the paper pressing mechanism (5) comprises a paper pressing assembly (51) and an adjusting assembly (52), and wherein a conveyor belt (6) is arranged on the base (1), and paper straightening assemblies (7) are arranged on both sides of the conveyor belt (6).

2. A printing paper fixing mechanism as claimed in claim 1, characterized in that: A paper pressing roller (22) is provided on the roller shaft (21), a bearing (23) is provided between the paper pressing roller (22) and the roller shaft (21), and the paper pressing roller (22) and the roller shaft (21) are rotatably connected via the bearing (23).

3. A printing paper fixing mechanism as claimed in claim 1, characterized in that: The angle pressing assembly (4) comprises a connecting shaft (41) and a connecting rod (44), wherein both ends of the connecting shaft (41) are connected to the base (1), the connecting shaft (41) is movably connected to the base (1), a plurality of paper head pressing plates (42) are provided on the connecting shaft (41), both ends of the connecting rod (44) are fixedly connected to the base (1), a plurality of connecting blocks (45) are provided on the connecting rod (44), a connecting ring (46) is provided at the lower end of the connecting block (45), a first spring (43) is connected to the connecting ring (46), and the other end of the first spring (43) is connected to the paper head pressing plate (42).

4. A printing paper fixing mechanism as claimed in claim 1, characterized in that: The paper pressing assembly (51) comprises a placement plate (511) and a support member (512); a receiving cavity (513) is provided in the placement plate (511); the support member (512) is connected to the receiving cavity (513); a limit block (514) is provided in the receiving cavity (513); a second spring (515) is coaxially provided on the support member (512); a stop block (516) is provided at the lower end of the support member (512); the second spring (515) is located between the limit block (514) and the stop block (516); a connecting plate (517) is provided at the lower end of the stop block (516); a rotating shaft (518) is provided on the connecting plate (517); and the rotating shaft (518) is movably connected to a roller (519) through a shaft hole.

5. A printing paper fixing mechanism as claimed in claim 4, characterized in that: The adjustment assembly (52) comprises a transmission screw (521), one end of the transmission screw (521) is connected to a driving motor (522) via a coupling, the driving motor (522) is fixedly connected to the support frame (3) via a connecting frame (523), a movable groove (524) is provided on the support frame (3), a slider (525) is provided at the end of the placement plate (511), the slider (525) and the movable groove (524) are movably connected, and the transmission screw (521) and the slider (525) are movably connected via threaded engagement.

6. A printing paper fixing mechanism as claimed in claim 1, characterized in that: The paper straightening assembly (7) comprises a mounting shaft (71), wherein the mounting shaft (71) is arranged on a base (1), a bearing sleeve (72) is provided on the mounting shaft (71), and a paper straightening belt (73) is connected to the bearing sleeve (72).

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