A paper feeding mechanism for a printing machine

Abstract

The utility model relates to printing machine technical field discloses a printing machine paper feeding mechanism, including machine body, the top rotation of machine body is installed with the press hold wheel of paper pressing effect and the press bar of paper feeding effect, and the press hold wheel is located in the side of press bar, and the press bar is slidably connected with the sucking disc for paper adsorption, and the press bar upper side edge rotation is installed with the adjusting rod, and the adjusting rod surface is equipped with a plurality of adjusting grooves that are distributed in the shape of sector, one press bar passes through the sliding block and is located in the side of another press bar and slides upward, so that the sucking disc does not contact with the workbench surface when pressing paper, on the contrary, if the paper size is longer, the single press bar can be moved downward and is flush with other sucking disc, and the distribution length of press bar and sucking disc is extended, the sucking disc can be adjusted according to the size of paper, the phenomenon of paper deformation is avoided, and the phenomenon of resistance or shorter paper size paper is lifted and the both ends will be drooping and bending to cause paper deformation.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, specifically to a paper feeding mechanism for a printing press. Background Technology

[0002] A printing press is an automated industrial device that uses a pre-set graphic carrier to precisely transfer ink and other printing materials onto the surface of a substrate. The paper needs to be held in place by pressure rollers during the transmission process. The core is to resolve the contradiction between the physical properties of the paper itself and the requirements for transmission accuracy, so as to realize the batch reproduction of graphics and text.

[0003] When conveying paper, suction cups are used to move the paper to the conveyor table. Since the paper sizes vary, for paper that is too short, the length of the suction cups is longer than the length of the paper, making it easy to miss the paper when pressing down to pick it up. When the paper stack is relatively thin, the suction cups will stick to the worktable when pressing down, creating resistance when lifting the paper. Conversely, if the paper is too long, the suction cups cannot get close to the edges of the paper to pick it up, causing the sides of the paper to bend and droop when lifting the paper, which will cause the paper to deform. If the paper is placed on the conveyor table in this way, the sides of the paper are easily folded and wrinkled.

[0004] In view of this, the present invention solves the above-mentioned technical problems by proposing a paper feeding mechanism for a printing press. Utility Model Content

[0005] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a paper feeding mechanism for a printing press, which solves the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a paper feeding mechanism for a printing press, comprising a body, a pressure roller for pressing paper and a pressing rod for feeding paper are rotatably mounted on the top of the body, the pressure roller is located on the side of the pressing rod, a suction cup for adsorbing paper is slidably connected to the pressing rod, an adjusting rod is rotatably mounted on the upper side of the pressing rod, the surface of the adjusting rod has a plurality of fan-shaped adjusting grooves, the top of the suction cup can be inserted into the adjusting groove on the surface of the adjusting rod through a sliding shaft, and the distance between two adjacent suction cups can be adjusted by rotating the adjusting rod;

[0007] The pressing rod is a single spliced ​​configuration. One side of the single pressing rod has a groove and the other side has a slider fixed thereon. The slider slides vertically inside the groove.

[0008] As a preferred embodiment of this utility model, the slide groove has a cross-shaped structure, the top of the suction cup is fixed with an L-shaped limiting block, the slide shaft is slidably disposed on the upper surface of the limiting block, and the top of the limiting block is set with an inclined surface.

[0009] As a preferred embodiment of this utility model, the sliding shaft has symmetrically formed grooves on its surface. A spring I is embedded inside the groove, and the end of the spring I is connected to the upper surface of the limiting block. A hinge rod is hinged to the outer wall of the sliding shaft at the end of the groove. A rotating wheel I is rotatably connected to the end of the hinge rod. When the sliding shaft is moved by pressing the hinge rod, the rotating wheel I contacts and rotates with the inclined surface at the top of the limiting block, avoiding obstruction and wear. Furthermore, pressing down the hinge rod causes the rotating wheel I to press against the surface of the limiting block to fix the sliding shaft in its movement, preventing it from dangling on the surface of the limiting block during operation and moving back and forth due to vibration, thus affecting the performance.

[0010] As a preferred technical solution of this utility model, both ends of the slider are cross-shaped structures that engage and slide inside the groove. Slots are provided on the upper surfaces of both sides inside the groove. Rotary wheels II are rotatably connected to both ends of the slider. Connecting seats are rotatably connected to the surface of the rotary wheels II. The connecting seats are elastically slidably connected to the inside of the slider by spring II. When the slider moves up to the slot position inside the groove, the rotary wheels II are pushed into the slot by the deformation expansion generated by the spring II to fix the upward movement of the single pressing rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] One of the pressing rods slides upwards next to the other pressing rod via a slider, preventing the suction cup from contacting the worktable surface when pressing the paper. Conversely, if the paper size is long, a single pressing rod can be moved down to be flush with the other suction cups, extending the distribution length of the pressing rods and suction cups. This allows the suction cups to be adjusted according to the paper size, preventing suction cups from missing any paper, causing resistance when lifting, or causing the paper to droop and bend at both ends when lifted if the paper is shorter than the paper size, resulting in paper deformation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention;

[0015] Figure 3 This utility model Figure 2 Schematic diagram of the middle pressing rod;

[0016] Figure 4 This utility model Figure 3 A partial structural diagram of the central pressing rod;

[0017] Figure 5 This utility model Figure 4 Structural diagram of the middle slider;

[0018] Figure 6 This utility model Figure 4 A cross-sectional view of the middle pressing rod;

[0019] Figure 7 This is a state diagram of the interior of the 209 insertion 2 in this utility model.

[0020] In the diagram: 1. Body; 2. Pressing rod; 201. Suction cup; 202. Adjusting rod; 204. Limiting block; 205. Slide groove; 206. Slide shaft; 207. Hinge rod; 208. Rotating wheel I; 209. Slider; 2091. Rotating wheel II; 210. Slot; 3. Holding wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-7 As shown, a paper feeding mechanism for a printing press includes a body 1. A pressure roller 3 for pressing paper and a pressing rod 2 for feeding paper are rotatably mounted on the top of the body 1. The pressure roller 3 is located on the side of the pressing rod 2. A suction cup 201 for adsorbing paper is slidably connected to the pressing rod 2. An adjusting rod 202 is rotatably mounted on the upper side of the pressing rod 2. The surface of the adjusting rod 202 has multiple adjusting grooves distributed in a fan shape. The top of the suction cup 201 can be inserted into the adjusting groove on the surface of the adjusting rod 202 through a sliding shaft 206. The distance between two adjacent suction cups 201 can be adjusted by rotating the adjusting rod 202.

[0023] The pressing rod 2 is a single spliced ​​configuration. One side of the single pressing rod 2 has a groove 205 and the other side has a slider 209 fixed. The slider 209 slides vertically inside the groove 205.

[0024] In one specific embodiment of this utility model, the slide groove 205 has a cross-shaped structure, the suction cup 201 has an L-shaped limiting block 204 fixed on the top, the slide shaft 206 is slidably disposed on the upper surface of the limiting block 204, and the top of the limiting block 204 is set with an inclined surface.

[0025] In one specific embodiment of this utility model, the sliding shaft 206 has symmetrically formed grooves on its surface. A spring I is embedded inside the groove, and the end of the spring I is connected to the upper surface of the limiting block 204. A hinge rod 207 is hinged to the outer wall of the sliding shaft 206 at the end of the groove. A rotating wheel I 208 is rotatably connected to the end of the hinge rod 207. When the sliding shaft 206 is moved by pressing the hinge rod 207, the rotating wheel I 208 contacts and rotates with the inclined surface at the top of the limiting block 204, avoiding obstruction and wear. Furthermore, the downward pressing of the hinge rod 207 causes the rotating wheel I 208 to press against the surface of the limiting block 204 to fix the sliding shaft 206 in its moving state, preventing it from dangling on the surface of the limiting block 204 during operation and moving back and forth due to vibration, thus affecting the performance.

[0026] In one specific embodiment of this utility model, both ends of the slider 209 are cross-shaped structures that engage and slide inside the groove 205. Slots 210 are provided on the upper surfaces of both sides inside the groove 205. Rotary wheels II 2091 are rotatably connected to both ends of the slider 209. Connecting seats are rotatably connected to the surface of the rotating wheels II 2091. The connecting seats are elastically slidably connected to the inside of the slider 209 by spring II. When the slider 209 moves upward inside the groove 205 to the position of the slot 210, the rotating wheels II 2091 are pushed into the slot 210 by the deformation expansion generated by the spring II to fix the upward movement of the single pressing rod 2.

[0027] During operation, the paper is attracted by the suction cup 201 and pulled to the conveyor table. The pressure roller 3 then helps to stabilize the paper, restricting its freedom of movement and preventing deformation and deviation. Pressing or pulling the hinge rod 207 moves the sliding shaft 206 onto the limiting block 204. To reduce the number of pressing rods 2, the rotating wheel Ⅰ 208 is pressed, causing the portion of the sliding shaft 206 inside the adjusting rod 202 to retract outwards. Rotating the adjusting rod 202 then moves the spacing between adjacent suction cups 201, allowing adjustment based on the paper size. If the paper is long... When the paper length is short, the number of suction cups 201 can be reduced. Start by adjusting from both ends of the pressing rod 2. One pressing rod 2 slides upwards on the side of the other pressing rod 2 via the slider 209 so that the suction cup 201 does not contact the worktable surface when pressing the paper. Conversely, if the paper size is long, a single pressing rod 2 can be moved down to be flush with the other suction cups 201 to extend the distribution length of the pressing rod 2 and the suction cup 201. The suction cup 201 can be adjusted according to the size of the paper to avoid the suction cup 201 missing the paper, causing resistance when lifting, or the paper being shorter than the paper size causing the ends to droop and bend when lifted, resulting in paper deformation.

[0028] With the arrangement of the rotating wheel II 2091, slot 210 and slider 209, a single pressing rod 2 slides inside another pressing rod 2 via the slider 209. When the single pressing rod 2 slides to the top, it is inserted into the corresponding slot 210 via the rotating wheel II 2091 to fix it, so as to prevent the device from falling due to vibration during operation.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper feeding mechanism for a printing press, comprising a body (1), wherein a pressure roller (3) for pressing paper and a pressing rod (2) for feeding paper are rotatably mounted on the top of the body (1), the pressure roller (3) being located on the side of the pressing rod (2), characterized in that: A suction cup (201) for paper adsorption is slidably connected to the pressing rod (2). An adjusting rod (202) is rotatably installed on the upper side of the pressing rod (2). The surface of the adjusting rod (202) has multiple fan-shaped adjusting grooves. The top of the suction cup (201) can be inserted into the adjusting groove on the surface of the adjusting rod (202) through a sliding shaft (206). The distance between two adjacent suction cups (201) can be adjusted by rotating the adjusting rod (202). The pressing rod (2) is a single spliced ​​arrangement. One side of the single pressing rod (2) is provided with a groove (205) and the other side is fixed with a slider (209). The slider (209) slides vertically inside the groove (205).

2. The paper feeding mechanism for a printing press according to claim 1, characterized in that: The slide groove (205) has a cross-shaped structure, and the suction cup (201) has an L-shaped limiting block (204) fixed on its top. The slide shaft (206) is slidably disposed on the upper surface of the limiting block (204), and the top of the limiting block (204) is set as an inclined surface.

3. The paper feeding mechanism for a printing press according to claim 2, characterized in that: The sliding shaft (206) has symmetrical grooves on its surface. A spring I is embedded inside the groove and the end of the spring I is connected to the upper surface of the limiting block (204). A hinge rod (207) is hinged to the outer wall of the sliding shaft (206) at the end of the groove. A rotating wheel I (208) is rotatably connected to the end of the hinge rod (207).

4. The paper feeding mechanism for a printing press according to claim 3, characterized in that: Both ends of the slider (209) are cross-shaped structures that engage and slide inside the groove (205). Slots (210) are provided on the upper surfaces of both sides inside the groove (205). Rotary wheels II (2091) are rotatably connected to both ends of the slider (209).

5. The paper feeding mechanism for a printing press according to claim 4, characterized in that: The rotating wheel II (2091) is rotatably connected to a connecting seat, which is elastically slidably connected to the inside of the slider (209) by a spring II.

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