An adsorptive lithographic printer pull-off gauge assembly

Abstract

The utility model discloses a kind of adsorption type lithographic press pull gauge components, including pull gauge seat, the upper surface middle position sliding connection of pull gauge seat has moving seat, and the upper surface fixed mounting of moving seat has lower pull paperboard, the upper surface of lower pull paperboard is provided with recess, recess is internally fixedly installed with suction disc, the upper of suction disc is provided with several evenly distributed suction holes, and the lower surface fixedly connected of suction disc has air pipe joint, the upper surface one end of pull gauge seat is fixedly installed with paper-pressing fixed seat, the upper surface fixed mounting of paper-pressing fixed seat has fixed plate, and the one end fixed mounting of fixed plate away from paper-pressing fixed seat has paper-pressing fixed block, and the outer surface of paper-pressing fixed block is fixedly installed with upper paper-pressing board by bolt, the utility model can effectively paper is adsorbed on lower pull paperboard, so that paper can be closely attached with lower pull paperboard, guarantee the complete paving effect of paper, paper can effectively avoid bulging phenomenon due to airflow.

Description

Technical Field

[0001] This utility model relates to the field of offset printing machine technology, specifically to an adsorption type offset printing machine pull gauge assembly. Background Technology

[0002] A offset printing press is a printing equipment used to produce high-quality flat printed materials. It is a traditional and efficient printing technology, mainly used for printing high-end commercial products, packaging products, and some special printing fields.

[0003] The basic principle of lithography is to apply ink to a flat printing plate (usually metal or lithography) and then transfer the printed image onto a printing medium (usually paper or other flat material). Compared to other printing technologies, lithography is characterized by direct contact between the printing plate and the printing medium, which helps achieve high-quality image transfer.

[0004] "Paper pull gauge" is a professional term in the printing industry. A printing paper pull gauge is a mechanical component in a offset printing press that controls the left and right positioning of the paper. It is also called a side gauge or push gauge and is used to ensure the consistency of the position of the printed pattern.

[0005] However, in the traditional pull gauge structure, the paper is prone to bulging due to airflow when in use. The bulging paper cannot be tightly and flattened with the pull gauge, resulting in a large gap between the paper edge and the stop plate. In actual operation, the bulging paper is prone to positional errors of the pull gauge, affecting the pull gauge accuracy of the printing press. Therefore, this utility model proposes an adsorption type flatbed printing press pull gauge component. Utility Model Content

[0006] The purpose of this invention is to provide an adsorption-type lithographic printing press pull gauge assembly to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adsorption-type offset printing press pull gauge assembly, including a pull gauge base, a movable seat slidably connected to the middle position of the upper surface of the pull gauge base, a pull-down cardboard fixedly installed on the upper surface of the movable seat, a groove provided on the upper surface of the pull-down cardboard, a suction plate fixedly installed inside the groove, a plurality of evenly distributed adsorption holes opened on the suction plate, an air pipe connector fixedly connected to the lower surface of the suction plate, a paper pressing fixing seat fixedly installed at one end of the upper surface of the pull gauge base, a fixing plate fixedly installed on the upper surface of the paper pressing fixing seat, a paper pressing fixing block fixedly installed at the end of the fixing plate away from the paper pressing fixing seat, and an upper pressing cardboard fixedly installed on the outer surface of the paper pressing fixing block by bolts.

[0008] Preferably, the front end of the upper pressing paperboard has an upward-curving edge design.

[0009] Preferably, the upper pressure cardboard is positioned above the lower pressure cardboard.

[0010] Preferably, a rotating seat is fixedly installed on one side of the upper surface of the pull gauge seat.

[0011] Preferably, the rotating seat side is rotatably mounted with an upward-pulling cardboard via a rotating pin.

[0012] Preferably, a guide plate is provided on the side of the pull-down cardboard away from the rotating seat, and the guide plate is fixedly installed on the upper surface of the pull gauge seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a negative pressure suction plate to effectively adsorb paper from the pull-down cardboard. In practical use, this negative pressure adsorption method effectively adheres the paper to the pull-down cardboard, ensuring a tight fit and a completely flat surface. This effectively prevents the paper from bulging due to airflow. The distance between the edge of the flattened paper and the retaining plate is within a normal range, thus avoiding the technical problem of large gaps between the bulging paper and the retaining plate. By using negative pressure adsorption to adhere the paper, this invention effectively reduces paper pulling error, improves pulling accuracy, and enhances practicality.

[0015] The upper pressure plate can press the upper surface of the paper, and when used in conjunction with the suction plate, it can effectively improve the pressing effect on the paper, allowing the paper to adhere more tightly to the lower plate. It has a better auxiliary pressing effect, making the structure more convenient to use. It provides a secondary limiting condition for the paper to be laid flat and tightly, and has a double guarantee effect to ensure the paper is tightly attached, resulting in higher structural stability. Attached Figure Description

[0016] Figure 1 This is a right-side perspective three-dimensional structural diagram of the pull gauge assembly according to an embodiment of the present utility model;

[0017] Figure 2 This is a left-side perspective three-dimensional structural diagram of the pull gauge assembly according to an embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the upper surface of the movable seat according to an embodiment of the present invention;

[0019] Figure 4 This is a bottom view of the structure of the movable seat according to an embodiment of the present invention.

[0020] In the diagram: 1. Pull-up seat; 2. Movable seat; 3. Pull-down cardboard; 4. Suction plate; 5. Suction hole; 6. Air pipe connector; 7. Paper pressing fixing seat; 8. Fixing plate; 9. Paper pressing fixing block; 10. Upper pressing cardboard; 11. Rotating seat; 12. Pull-up cardboard; 13. Passing cardboard. 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] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 One embodiment of this utility model is an adsorption-type lithographic printing press pull gauge assembly, including a pull gauge seat 1;

[0025] Please refer to the instruction manual for details. Figure 3 as well as Figure 4 As shown, a movable seat 2 is slidably connected to the middle position of the upper surface of the pull gauge seat 1. A pull-down cardboard 3 is fixedly installed on the upper surface of the movable seat 2. A groove is provided on the upper surface of the pull-down cardboard 3. A suction plate 4 is fixedly installed inside the groove. Several evenly distributed suction holes 5 are opened on the upper surface of the suction plate 4. An air pipe connector 6 is fixedly connected to the lower surface of the suction plate 4.

[0026] In this structural design, the air pipe connector 6 below the movable seat 2 of the pull gauge assembly of this utility model can be connected to an external negative pressure adsorption pump through a pipe. The negative pressure adsorption pump can generate adsorption negative pressure. In actual use, air is drawn in through the adsorption hole 5 of the suction plate 4. When paper enters the upper surface of the pull cardboard 3, the suction plate 4 can effectively adsorb the paper on the pull cardboard 3 through negative pressure adsorption. In actual use, this negative pressure adsorption method can effectively adsorb the paper onto the pull cardboard 3, so that the paper can be tightly attached to the pull cardboard, ensuring the paper is completely flat. It can effectively prevent the paper from bulging due to airflow. The distance between the edge of the flattened paper and the baffle is within the normal range, thus avoiding the technical problem of large gaps between the paper bulging and the baffle. By using negative pressure adsorption to attach the paper, the paper pull gauge error can be effectively reduced, the pull gauge accuracy can be improved, and the practicality can be enhanced.

[0027] In order to further improve the paper pressing effect, a paper pressing fixing seat 7 is fixedly installed on one end of the upper surface of the pull gauge seat 1. A fixing plate 8 is fixedly installed on the upper surface of the paper pressing fixing seat 7. A paper pressing fixing block 9 is fixedly installed on the end of the fixing plate 8 away from the paper pressing fixing seat 7. An upper pressing plate 10 is fixedly installed on the outer surface of the paper pressing fixing block 9 by bolts.

[0028] The upper pressure plate 10 can press the upper surface of the paper. In conjunction with the suction plate 4, the pressing effect on the paper can be effectively improved, allowing the paper to be further pressed tightly against the lower plate 3. It has a better auxiliary pressing effect, making the structure more convenient to use. It provides a secondary limiting condition for the paper to be laid flat and tightly, and has a double guarantee effect to ensure the paper is tightly pressed. The structure has higher stability.

[0029] In this embodiment, to facilitate the paper entering above the upper pressure plate 10, please refer to the appendix of the instruction manual for details. Figure 1 As shown, the front end of the upper pressure platen 10 has an upward-curved edge structure design, which can serve as a guide structure for the paper to enter, thus preventing the lower pressure platen 10 from being blocked at the end.

[0030] The upper pressure plate 10 is positioned above the lower plate 3, and the incoming paper can be placed between the upper pressure plate 10 and the lower plate 3.

[0031] In this embodiment, a rotating seat 11 is fixedly installed on one side of the upper surface of the pull gauge seat 1. An upper pull plate 12 is rotatably installed on the side of the rotating seat 11 via a rotating pin, so that the upper pull plate 12 can rotate on the rotating seat 1 to ensure normal use.

[0032] In this embodiment, a paperboard 13 is provided on the side of the pull-down paperboard 3 away from the rotating seat 11, and the paperboard 13 is fixedly installed on the upper surface of the pull gauge seat 1.

[0033] Working principle: Those skilled in the art can use the pull gauge assembly of this utility model through conventional methods. The working principle of the printing pull gauge is to make precise adjustments to the left and right positions of the paper through mechanical or pneumatic devices to ensure the registration accuracy.

[0034] The pull gauge applies pressure to both sides of the paper through a telescopic device or pneumatic component. The positive pull gauge is located on the operator's side and pushes the paper inward; the negative pull gauge is located on the other side and pulls the paper outward. This bidirectional adjustment ensures that the paper edge is aligned with the preset pull gauge line, and the deviation is controlled within the specified accuracy range.

[0035] The pull gauge assembly is a well-known and publicly disclosed technology product in the art, and it is a mature existing technology. This specification will not go into too much detail about its working principle. The following is a detailed explanation of the solution to the technical problem proposed by this utility model:

[0036] The pull gauge assembly of this utility model has an air pipe connector 6 below the movable seat 2 that can be connected to an external negative pressure adsorption pump through a pipe. The negative pressure adsorption pump can generate adsorption negative pressure. In actual use, air is drawn in through the adsorption hole 5 of the suction plate 4. When paper enters the upper surface of the pull cardboard 3, the suction plate 4 can effectively adsorb the paper on the pull cardboard 3 through negative pressure adsorption. In actual use, this negative pressure adsorption method can effectively adsorb the paper onto the pull cardboard 3, so that the paper can be tightly attached to the pull cardboard, ensuring a completely flat paper effect. It can effectively prevent the paper from bulging due to airflow. The distance between the edge of the flattened paper and the baffle is within the normal range, thus avoiding the technical problem of large gaps between the paper bulging and the baffle. By adsorbing the paper with negative pressure, the paper pull gauge error can be effectively reduced, the pull gauge accuracy can be improved, and the practicality can be enhanced.

[0037] The upper pressure plate 10 can press the upper surface of the paper. In conjunction with the suction plate 4, this can effectively improve the pressing effect on the paper, allowing the paper to adhere more tightly to the lower plate 3. It has a better auxiliary pressing effect, making the structure more convenient to use. It provides a secondary limiting condition for the paper to be laid flat and tightly, and has a double guarantee effect to ensure the paper is tightly attached. The structure is more stable in use.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adsorption-type offset printing press pull gauge assembly, comprising a pull gauge seat (1), characterized in that, A movable seat (2) is slidably connected to the middle position of the upper surface of the pull gauge seat (1). A pull-down cardboard (3) is fixedly installed on the upper surface of the movable seat (2). A groove is provided on the upper surface of the pull-down cardboard (3). A suction plate (4) is fixedly installed inside the groove. Several evenly distributed suction holes (5) are opened on the upper surface of the suction plate (4). An air pipe connector (6) is fixedly connected to the lower surface of the suction plate (4). A paper pressing seat (7) is fixedly installed at one end of the upper surface of the pull gauge seat (1). A fixing plate (8) is fixedly installed on the upper surface of the paper pressing seat (7). A paper pressing block (9) is fixedly installed at the end of the fixing plate (8) away from the paper pressing seat (7). An upper pressing cardboard (10) is fixedly installed on the outer surface of the paper pressing block (9) by bolts.

2. The pull gauge assembly for an adsorption-type offset printing machine according to claim 1, characterized in that: The front end of the upper pressing cardboard (10) has an upward-curving edge design.

3. The pull gauge assembly for an adsorption-type offset printing machine according to claim 1, characterized in that: The upper pressure cardboard (10) is positioned above the lower pressure cardboard (3).

4. The pull gauge assembly for an adsorption-type offset printing machine according to claim 1, characterized in that: A rotating seat (11) is fixedly installed on one side of the upper surface of the pull gauge seat (1).

5. The pull gauge assembly for an adsorption-type offset printing machine according to claim 4, characterized in that: The rotating seat (11) is rotatably mounted with an upward-pulling cardboard (12) via a rotating pin.

6. The pull gauge assembly for an adsorption-type offset printing machine according to claim 1, characterized in that: The pull-down cardboard (3) has a pass-through cardboard (13) on the side away from the rotating seat (11), and the pass-through cardboard (13) is fixedly installed on the upper surface of the pull gauge seat (1).

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