Plate table flattening structure for printing piece production

Abstract

The utility model discloses a plate table flattening structure for printing piece production, and belongs to the technical field of printing material processing. A plurality of adsorption holes are formed in the surface of the vacuum suction plate, an air cavity communicated with the adsorption holes is formed in the vacuum suction plate, the air cavity is connected into a negative pressure air source through a pipeline, and a pressure regulating valve is arranged on the pipeline; the vacuum suction plate is detachably connected to the printing equipment through a plurality of sets of first supporting arms and second supporting arms, and the first supporting arms are provided with material carrying rollers which can be in lap joint and carry printing materials. According to the plate table flattening structure for printing piece production, printing materials are flattened in a vacuum adsorption mode, the tensioning force of thin film materials is accurately controlled by adjusting the pressure of an air source, and the problem that in the prior art, the tensioning force is difficult to accurately control is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing material processing, and particularly relates to a flat structure of a plate table for printing production. Background Art

[0002] With the continuous development of printing technology and the increasing requirements for the quality of printed products in the market, the flatness of printing materials has become one of the key factors affecting printing quality. In the prior art, a mechanical tensioning device is usually used to stretch the material to make it flat. However, for materials of different thicknesses, it is often difficult to accurately control the tensioning force by using this method. When the material is over-tensioned, it may directly cause the material to deform or even break, and when the material is insufficiently tensioned, the bending of the material cannot be effectively eliminated.

[0003] Therefore, there is an urgent need for a flat structure of a plate table for printing production that can accurately control the tensioning force of the material. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a flat structure of a plate table for printing production. The printing material is flattened by a vacuum adsorption method, and the tensioning force of the film material is accurately controlled by adjusting the air source pressure, solving the problem of difficult accurate control of the tensioning force in the prior art.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a flat structure of a plate table for printing production, including a vacuum suction plate with a plurality of adsorption holes on its surface. An air chamber communicated with the adsorption holes is arranged inside the vacuum suction plate, and the air chamber is connected to a negative pressure air source through a pipeline. A pressure regulating valve is arranged on the pipeline;

[0006] The vacuum suction plate is detachably connected to the printing equipment through a plurality of groups of first support arms and second support arms. A loading roller capable of lapping and carrying the printing material is arranged on the first support arm.

[0007] Optionally, the plurality of adsorption holes are uniformly arranged, and a cushion film capable of being laid flat on the vacuum suction plate is arranged between the loading rollers. The cushion film is provided with dense air holes.

[0008] Optionally, a group of limiting blocks capable of clamping both sides of the printing material along the conveying direction are slidably connected to the loading roller.

[0009] Optionally, one ends of the first support arm and the second support arm far from the vacuum suction plate are hinged to the printing equipment, and a section of the second support arm is slidably connected to the vacuum suction plate.

[0010] Optionally, a return groove is arranged on the second support arm, and a wing bolt capable of being threadedly connected to the vacuum suction plate is arranged in the return groove.

[0011] Optionally, a pneumatic pressure display meter is provided on the pipeline between the pressure regulating valve and the vacuum suction plate.

[0012] Optionally, at least two of the loading rollers are penetrated through each of the limiting blocks.

[0013] Optionally, the limiting block can be fixed at any position on the loading roller.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: The vacuum suction plate connected to the negative pressure air source can generate negative pressure through the uniformly distributed adsorption holes, and can apply a uniform adsorption force to the film material laid on the vacuum suction plate from all directions, thereby prompting the film material to be quickly flattened. The pressure regulating valve can accurately control the adsorption force applied to the film material through the gas pressure. For film materials of different specifications and different thicknesses, the tension of the film material can be accurately controlled by adjusting the air pressure through the pressure regulating valve. Description of the Drawings

[0015] The present utility model will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 FIG. is a schematic structural diagram of a flat structure of a printing plate table for printing production in a preferred embodiment of the present utility model;

[0017] Wherein, 1, vacuum suction plate; 101, adsorption hole; 2, pipeline; 3, first support arm; 4, second support arm; 401, return groove; 5, loading roller; 6, cushion film; 7, limiting block; 8, wing bolt; 9, pneumatic pressure display meter. Detailed Description of the Specific Embodiment

[0018] The present utility model will now be further described in detail with reference to the drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, and therefore only showing the components related to the present utility model.

[0019] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Unless otherwise clearly stipulated and defined, the terms "set", "connected", and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] As Figure 1 shown, a flat structure of a plate platform for printing production includes a vacuum suction plate 1 with a number of adsorption holes 101 on its surface. An air cavity communicated with the adsorption holes 101 is arranged inside the vacuum suction plate 1, and the air cavity is connected to a negative pressure air source through a pipeline 2. A pressure regulating valve is arranged on the pipeline 2. The vacuum suction plate 1 connected to the negative pressure air source can generate negative pressure through the uniformly distributed adsorption holes 101, and can apply a uniform adsorption force to the film material laid on the vacuum suction plate 1 from all directions, so that the film material is closely attached to the vacuum suction plate 1. No matter what the initial state of the film material is, it can be quickly flattened, and the surface flatness is extremely high. The pressure regulating valve can accurately control the adsorption force applied to the film material through the gas pressure. For film materials of different specifications and different thicknesses, the air pressure can be adjusted through the pressure regulating valve to accurately control the tension of the film material.

[0021] As described above, the vacuum suction plate 1 is detachably connected to the printing equipment through several groups of first support arms 3 and second support arms 4. Specifically, as structural members, the first support arms 3 and the second support arms 4 can install structures such as the vacuum suction plate 1 on the printing equipment through fasteners such as bolts. At the same time, a loading roller 5 capable of lapping and carrying printing materials is arranged on the first support arm 3. The surface of the loading roller 5 is smooth and traceless. When carrying the film material, it serves as a support point, enabling the film material to be laid flat on the vacuum suction plate 1 and preventing creases, scratches, etc. from appearing at the edges of the film material.

[0022] Furthermore, as Figure 1As shown in the figure, a number of adsorption holes 101 are evenly arranged, and a cushion film 6 that can be laid flat on the vacuum suction plate 1 is arranged between the material loading rollers 5. The cushion film 6 is provided with dense air holes. The cushion film 6 can be made of one or more of the materials such as polytetrafluoroethylene porous material, microporous rubber, aerogel, foam silicone rubber, etc. in the prior art. When the thin film material is laid on the cushion film 6 and the vacuum suction plate 1 is connected to the negative pressure air source, the dense air holes on the cushion film 6 can generate negative pressure through the adsorption holes 101, and can further apply uniform tensile force to the thin film material at multiple positions, so that the thin film material is flattened more fully.

[0023] Furthermore, in this technical solution, when the printing material moves relative to the vacuum suction plate 1, in order to prevent the thin film material from shifting out of the area where the cushion film 6 is located, as Figure 1 shown, a set of limit blocks 7 that can be clamped on both sides of the printing material along the conveying direction are slidably connected to the material loading rollers 5. At the same time, the limit blocks 7 can be fixed at any position on the material loading rollers 5, so as to adjust the distance between the limit blocks 7 according to the specifications of the thin film material. Specifically, the limit blocks 7 can be slidably sleeved on the material loading rollers 5, and fasteners such as bolts are inserted or screwed on the limit blocks 7, and then the limit blocks 7 are locked to fix them on the material loading rollers 5. At the same time, in order to prevent the limit blocks 7 from flipping relative to the material loading rollers 5 due to loosening, at least two material loading rollers 5 are inserted through each limit block 7.

[0024] Furthermore, in this technical solution, for the layout of the printing equipment and production line, it is necessary to adjust the inclination angle of the vacuum suction plate 1 so that the thin film material can be laid flat on the vacuum suction plate 1. As Figure 1 shown, one ends of the first support arm 3 and the second support arm 4 far from the vacuum suction plate 1 are hinged to the printing equipment, and a section of the second support arm 4 is slidably connected to the vacuum suction plate 1. Specifically, a return groove 401 is provided on the second support arm 4, and a butterfly bolt 8 that can be threadedly connected to the vacuum suction plate 1 is inserted through the return groove 401. The bolt head on the butterfly bolt 8 can press down on the second support arm 4. By screwing and fastening the butterfly bolt 8 to the vacuum suction plate 1, the second support arm 4 and the vacuum suction plate 1 can be firmly fixed together, and the relative position between the two is kept stable, so as to ensure that the vacuum suction plate 1 is stable at a certain fixed inclination angle.

[0025] In this embodiment, in order to facilitate viewing the operation of the vacuum suction plate 1, a pressure gauge 9 is provided on the pipeline 2 between the pressure regulating valve and the vacuum suction plate 1. The pressure gauge 9 is a prior art. When it is connected to the pipeline 2 and the negative pressure air source is introduced, it can feedback the pressure state in real time.

[0026] Working principle: First, one end of the first arm 3 and the second arm 4 is hinged at the position where the thin film material passes through the printing equipment. Subsequently, by adjusting the relative position between the second arm 4 and the vacuum suction plate 1, the thin film material can be laid flat on the surface of the cushion film 6 on the vacuum suction plate 1 along the conveying path. Then, when the printing equipment and the production line are started, after connecting the negative pressure air source, the adsorption holes 101 evenly distributed on the vacuum suction plate 1 and the dense air holes on the cushion film 6 can generate negative pressure, so as to apply a uniform adsorption force to the thin film material laid on the cushion film 6 in all directions, so that the thin film material is closely attached to the cushion film 6 and the thin film material is flattened more fully. The pressure regulating valve can accurately control the adsorption force applied to the thin film material through the gas pressure. For thin film materials of different specifications and different thicknesses, the tension of the thin film material can be accurately controlled by adjusting the air pressure through the pressure regulating valve.

[0027] Based on the ideal embodiments of the present invention as the inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A flat structure for a printing plate platform in print production, characterized in that: It includes a vacuum suction plate (1) with a number of suction holes (101) provided on its surface. An air cavity communicating with the suction holes (101) is built inside the vacuum suction plate (1). The air cavity is connected to a negative pressure air source through a pipeline (2), and a pressure regulating valve is provided on the pipeline (2). The vacuum suction plate (1) is detachably connected to a printing device through a number of groups of first arms (3) and second arms (4). A loading roller (5) capable of lapping and carrying printing materials is provided on the first arm (3).

2. The flat structure of the printing plate table for printing production according to claim 1, characterized in that: A number of the suction holes (101) are evenly arranged, and a cushion film (6) capable of being laid flat on the vacuum suction plate (1) is provided between the loading rollers (5). The cushion film (6) is provided with dense air holes.

3. The flat structure of the printing plate table for printing production according to claim 1, characterized in that: A set of limit blocks (7) capable of being clamped on both sides of the printing material along the conveying direction are slidably connected to the loading roller (5).

4. The flat structure of the printing plate table for printing production according to claim 3, characterized in that: One ends of the first arm (3) and the second arm (4) far from the vacuum suction plate (1) are hinged to the printing device, and a section of the second arm (4) is slidably connected to the vacuum suction plate (1).

5. The flat structure of the printing plate table for printing production according to claim 4, characterized in that: A return groove (401) is provided on the second arm (4), and a butterfly bolt (8) capable of being threadedly connected to the vacuum suction plate (1) is inserted into the return groove (401).

6. The flat structure of the printing plate table for printing production according to claim 1, wherein: A pressure display meter (9) is provided on the pipeline (2) between the pressure regulating valve and the vacuum suction plate (1).

7. The flat structure of the printing plate table for printing production according to claim 3, characterized in that: At least two of the loading rollers (5) are penetrated by each of the limit blocks (7).

8. The flat structure of the printing plate table for printing production according to claim 3, characterized in that: The limit block (7) can be fixed at any position on the loading roller (5).

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