Plate burning device for offset printing

Abstract

The utility model discloses a printing-down device for offset printing. The printing-down device comprises a printing-down machine, a positioning mechanism and a fixing mechanism, the positioning mechanism comprises a positioning frame, a positioning clamping plate used for clamping and fixing and an elastic blocking piece used for limiting the position, and the positioning frame is placed in the printing-down machine. The fixing mechanism comprises a fixing rod and a fixing gasket used for limiting and fixing, the fixing rod is arranged on the outer wall of the positioning frame, and the positioning frame is installed and fixed in the printing-down machine through the fixing rod. And meanwhile, the photosensitive plate frame bodies with different sizes can be accurately placed at the upper end of a plate burning area, and the photosensitive plate frame bodies placed in the positioning frame can be locked, so that the situation that the printing effect of subsequent patterns is affected due to the fact that the positions of the photosensitive plate frame bodies deviate when the photosensitive plate frame bodies placed in the positioning frame are burnt is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of exposure technology, especially relates to the exposure device for offset printing. BACKGROUND

[0002] The exposure machine is a kind of contact exposure imaging equipment for making printing plate, and the original plate is tightly attached to the photosensitive plate by pressure, so that the image on the original plate is accurately exposed on the photosensitive plate by photochemical reaction.In use, the photosensitive plate frame is placed on the upper end of the exposure area, and the appropriate position is adjusted to facilitate exposure.

[0003] In the exposure process, the photosensitive plate frame needs to be attached to the upper end of the exposure area by manual alignment and then fixed, but the manual alignment method for aligning the exposure area and the photosensitive plate has low alignment efficiency and is prone to errors, thereby affecting the subsequent printing effect of the pattern.

[0004] Therefore, how to design a kind of exposure device for conveniently aligning photosensitive plate is a technical problem to be solved by the present technical personnel. INVENTION CONTENTS

[0005] The utility model aims at providing exposure device for offset printing, has solved the problem in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme exposure device for offset printing, characterized by comprising:

[0007] Exposure machine, positioning mechanism and fixing mechanism;

[0008] The positioning mechanism includes a positioning frame, a positioning clamp plate for clamping and fixing, and an elastic stopper for limiting position, and the positioning frame is placed inside the exposure machine;

[0009] The fixing mechanism includes a fixing rod and a fixing washer for limiting and fixing, the fixing rod is arranged on the outer wall of the positioning frame, and the positioning frame is installed and fixed to the inside of the exposure machine by the fixing rod.

[0010] Preferably, the positioning frame is provided with a fixed plate inside, the fixed plate is provided with an elastic clamp plate on the top, and the positioning clamp plate is arranged at one end of the elastic clamp plate.

[0011] Preferably, the positioning clamp plate is provided with a groove inside, the inner wall of the groove is provided with an elastic stopper, and the outer wall of the elastic stopper is provided with a guide arc piece.

[0012] Preferably, the positioning clamp plate is provided with a guide arc plate at one end, the guide arc plate is C-shaped, and the positioning clamp plate and the guide arc plate are an integral structure.

[0013] Preferably, the bottom of the fixed plate is provided with an adjusting arc plate, and the inside of the positioning frame is provided with a limiting clamping groove matched with the shape of the adjusting arc plate.

[0014] Preferably, the two sides of the fixed plate are provided with limiting baffle plates, which are arc-shaped elastic curved surface structures and are in mirror image structure.

[0015] Preferably, the outer wall of the positioning frame is provided with a fixed sliding seat, and the inside of the fixed sliding seat is provided with a sliding sleeve, and the fixed rod is slidingly sleeved in the sliding sleeve.

[0016] Preferably, the outer wall of the fixed sliding seat is provided with a positioning clamping plate, and the inside of the fixed rod is provided with a plurality of positioning clamping grooves matched with the shape of the positioning clamping plate, and the positioning clamping plate is fixedly sleeved in the positioning clamping groove.

[0017] Preferably, the two ends of the fixed rod are provided with limiting plates, and the top of the limiting plate is provided with a fixed gasket.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] In this case, by setting the positioning mechanism, not only can the sensitized plate frame body be conveniently attached to the upper end of the printing plate area, but also different sizes of sensitized plate frame bodies can be accurately placed on the upper end of the printing plate area, and the sensitized plate frame body can be locked inside the positioning frame. On the one hand, the sensitized plate frame body can be conveniently attached to the upper end of the printing plate area, and the size of the positioning mechanism can be adjusted to meet the fixing requirements of sensitized plate frame bodies of different sizes, thereby improving the practicability of the device. On the other hand, the sensitized plate frame body placed in the positioning frame can be locked to avoid the position deviation of the sensitized plate frame body placed in the positioning frame during printing, which affects the printing effect of the subsequent pattern. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 is a schematic diagram of the structure of the positioning mechanism and the fixing mechanism of the present application;

[0023] Figure 3 isFigure 2 Cross-sectional view of the three-dimensional structure;

[0024] Figure 4 This is a schematic diagram of the overall structure of the positioning mechanism of this utility model.

[0025] As shown in the diagram: 1. Exposure machine; 2. Positioning mechanism; 201. Positioning frame; 202. Fixing plate; 203. Elastic clamping plate; 204. Positioning clamping plate; 205. Groove; 206. Elastic baffle; 207. Guide arc plate; 208. Limiting baffle; 209. Guide arc plate; 210. Adjusting arc plate; 211. Limiting slot; 212. Fixed slide; 213. Sliding sleeve; 214. Positioning plate; 3. Fixing mechanism; 301. Fixing rod; 302. Positioning slot; 303. Limiting plate; 304. Fixing shim. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0027] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] In the description of the utility model, it is necessary to understand that the orientation or position relation indicated by the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0030] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements or the interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] It should be understood that, although the utility model can adopt the terms "first", "second", "third" and the like to describe various components, these information should not be limited to these terms. These terms are only used to distinguish the components of the same type from each other. For example, the first component can also be called the second component without departing from the scope of the utility model, and similarly, the second component can also be called the first component. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0032] The technical scheme of the utility model embodiment is described in detail below with reference to the drawings.

[0033] Figure 1 It is the overall structure schematic view of the utility model; Figure 2 It is the structure schematic view of the positioning mechanism and the fixing mechanism of the utility model; Figure 3 It is Figure 2 It is the sectional view schematic view of the structure; Figure 4 It is the overall structure schematic view of the positioning mechanism of the utility model.

[0034] Reference Figures 1 to 4 The exposure device for offset printing comprises:

[0035] An exposure machine 1, a positioning mechanism 2 and a fixing mechanism 3, the model of the exposure machine 1 is XL900T, which is prior art;

[0036] The positioning mechanism 2 comprises a positioning frame 201, positioning clamping plates 204 for clamping fixation, and elastic stop sheets 206 for limiting position, the positioning frame 201 is placed into the inside of the exposure machine 1.

[0037] The fixing mechanism 3 comprises fixing rods 301 and fixing washers 304 for limiting fixation, the fixing rods 301 are arranged on the outer wall of the positioning frame 201, and the positioning frame 201 is fixedly installed into the inside of the exposure machine 1 through the fixing rods 301.

[0038] Specifically, the inside of the positioning frame 201 is provided with a fixed plate 202, the top of the fixed plate 202 is provided with elastic clamping plates 203, and the positioning clamping plates 204 are arranged at one end of the elastic clamping plates 203.

[0039] Specifically, the inside of the positioning clamping plate 204 is provided with a groove 205, the inner wall of the groove 205 is provided with elastic stop sheets 206, and the outer wall of the elastic stop sheets 206 is provided with guide arc sheets 207.

[0040] Specifically, one end of the positioning clamping plate 204 is provided with a guide arc plate 209, the shape of the guide arc plate 209 is C-shaped, and the positioning clamping plate 204 and the guide arc plate 209 are an integral structure.

[0041] Specifically, the bottom of the fixed plate 202 is provided with an adjusting arc plate 210, the inside of the positioning frame 201 is provided with a limiting clamping groove 211 matched with the shape of the adjusting arc plate 210, and the adjusting arc plate 210 is fixedly clamped in the inside of the limiting clamping groove 211.

[0042] Specifically, both sides of the fixed plate 202 are provided with limiting stop plates 208, the limiting stop plates 208 are arc-shaped elastic curved surface structures and are mirror image structures.

[0043] Specifically, the outer wall of the positioning frame 201 is provided with a fixed sliding seat 212, the inside of the fixed sliding seat 212 is provided with a sliding sleeve 213, the fixed rod 301 is slidingly sleeved in the inside of the sliding sleeve 213, the outer wall of the fixed sliding seat 212 is provided with a positioning clamping plate 214, the inside of the fixed rod 301 is provided with a plurality of positioning clamping grooves 302 matched with the shape of the positioning clamping plate 214, the positioning clamping plate 214 is fixedly clamped in the inside of the positioning clamping groove 302, and both ends of the fixed rod 301 are provided with limiting plates 303, and the top of the limiting plate 303 is provided with a fixing washer 304.

[0044] Embodiment one: in this embodiment, in order to solve the problem that it is inconvenient to place the sensitized plate frame body and the exposure area when manually placing the sensitized plate frame body, the technical scheme of the embodiment is as follows, for reference Figures 1 to 4, the elastic clamping plate 203 is an arc-shaped elastic curved surface structure, the limiting baffle 208 is an arc-shaped elastic curved surface structure, the limiting baffle 208 is arranged on both sides of the fixed plate 202 and is a mirror image symmetric structure, when the photosensitive plate frame body is placed in the positioning frame 201, the photosensitive plate frame body is clamped and fixed in the positioning frame 201 under the action of the elastic clamping plate 203 and the limiting baffle 208, and the photosensitive plate frame body can be accurately placed on the upper end of the printing plate area.

[0045] Further limited as the technical solution, the adjusting arc plate 210 is an arc-shaped elastic curved surface structure, the shape of the adjusting arc plate 210 is matched with the shape of the limiting clamping groove 211, the distance between the two positioning clamping plates 204 can be adjusted by adjusting the position of the adjusting arc plate 210 in the limiting clamping groove 211, the fixing demand of the photosensitive plate frame body of different sizes can be met, and the practicability of the device is improved.

[0046] In this embodiment, in order to solve the problem that the photosensitive plate frame body deviates during printing, the technical scheme of the embodiment is as follows, referring to Figures 1 to 4 , the elastic baffle 206 is an arc-shaped elastic curved surface structure, the elastic baffle 206 is arranged in the groove 205, and the guide arc piece 207 is an arc-shaped elastic curved surface structure, when the photosensitive plate frame body is placed in the positioning frame 201, the elastic baffle 206 is in contact with the outside of the photosensitive plate frame body, and at the same time, the elastic baffle 206 is attached to the outside of the photosensitive plate frame body under the action of the elastic clamping plate 203, so that the photosensitive plate frame body can be locked in the positioning frame 201, and the position deviation of the photosensitive plate frame body placed in the positioning frame 201 during printing is avoided, so that the printing effect of the subsequent pattern is affected.

[0047] In this embodiment, in order to solve the problem that the positioning frame 201 is not convenient to fix the printing machine 1, the technical scheme of the embodiment is as follows, referring to Figures 1 to 4 , the fixed rod 301 is installed in the sliding sleeve 213, the positioning clamping plate 214 is an arc-shaped elastic curved surface structure, the shape of the positioning clamping groove 302 is matched with the shape of the positioning clamping plate 214, and the fixed gasket 304 is an arc-shaped elastic curved surface structure, by sliding the fixed rod 301 into the fixed sliding seat 212, connecting the positioning clamping plate 214 with the positioning clamping groove 302, the fixed rod 301 can be installed and fixed outside the positioning mechanism 2, then by adjusting the position of the fixed rod 301 in the fixed sliding seat 212, the one end of the fixed rod 301 is in contact with the inner wall of the printing machine 1, then under the action of the fixed gasket 304, the positioning mechanism 2 is supported and fixed in the printing machine 1, and the moving direction of the photosensitive plate frame body can be guided when the photosensitive plate frame body is placed, so that the photosensitive plate frame body can be placed on the upper end of the printing plate area.

[0048] In combination with the above embodiments, it is concluded that, in use, the position of the fixing rod 301 inside the fixing slide 212 is adjusted, the fixing rod 301 is fixed inside the fixing slide 212 by the connection between the positioning clamping plate 214 and the positioning clamping groove 302, then the positioning mechanism 2 is clamped and fixed inside the exposure machine 1 by the fixing washer 304 arranged at one end of the fixing rod 301, in the exposure process, the sensitized plate frame is placed inside the positioning frame 201 through the guide arc plate 209, then is clamped and fixed inside the positioning frame 201 under the action of the elastic clamping plate 203 and the positioning clamping plate 204, and the position of the sensitized plate frame placed inside the positioning frame 201 can be selectively locked under the action of the elastic clamping plate 206, so that the position deviation of the sensitized plate frame placed inside the positioning frame 201 in the exposure process is avoided, and the printing effect of the subsequent pattern is affected.

[0049] The scheme of the present application has been described in detail above with reference to the drawings. In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments. It should be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method of the present application embodiment can be adjusted, combined and reduced in sequence according to actual needs, and the structure in the device of the present application embodiment can be combined, divided and reduced according to actual needs.

[0050] The above has described each embodiment of the present application, and the above description is exemplary, not exhaustive, and is not limited to each disclosed embodiment. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles, practical application or improvement of technology in the market of each embodiment, or to enable other ordinary skilled in the art to understand each embodiment disclosed herein.

Claims

1. A plate-making apparatus for offset printing, characterized in that, include: Exposure machine (1), positioning mechanism (2) and fixing mechanism (3); The positioning mechanism (2) includes a positioning frame (201), a positioning clamping plate (204) for clamping and fixing, and an elastic baffle (206) for limiting the position. The positioning frame (201) is placed inside the exposure machine (1). The fixing mechanism (3) includes a fixing rod (301) and a fixing pad (304) for limiting and fixing. The fixing rod (301) is set on the outer wall of the positioning frame (201). The positioning frame (201) is installed and fixed inside the plate exposure machine (1) through the fixing rod (301).

2. The plate-making apparatus for offset printing according to claim 1, characterized in that, The positioning frame (201) is provided with a fixing plate (202) inside, and an elastic clamping plate (203) is provided on the top of the fixing plate (202). The positioning clamping plate (204) is provided at one end of the elastic clamping plate (203).

3. The plate-making apparatus for offset printing according to claim 2, characterized in that, The positioning clamp (204) has a groove (205) inside, the inner wall of the groove (205) is provided with an elastic baffle (206), and the outer wall of the elastic baffle (206) is provided with a guide arc plate (207).

4. The plate-making apparatus for offset printing according to claim 3, characterized in that, The positioning clamp (204) is provided with a guide arc plate (209) at one end. The guide arc plate (209) is C-shaped. The positioning clamp (204) and the guide arc plate (209) are an integral structure.

5. The plate-making apparatus for offset printing according to claim 2, characterized in that, The bottom of the fixed plate (202) is provided with an adjusting arc plate (210), and the positioning frame (201) is provided with a limiting slot (211) that matches the shape of the adjusting arc plate (210). The adjusting arc plate (210) is fixedly sleeved inside the limiting slot (211).

6. The plate-making apparatus for offset printing according to claim 2, characterized in that, Both sides of the fixing plate (202) are provided with limiting baffles (208), which are arc-shaped elastic curved surface structures and are mirror structures.

7. The plate-making apparatus for offset printing according to claim 1, characterized in that, The positioning frame (201) has a fixed slide (212) on its outer wall, and a sliding sleeve (213) is provided inside the fixed slide (212). The fixed rod (301) is slidably sleeved inside the sliding sleeve (213).

8. The plate-making apparatus for offset printing according to claim 7, characterized in that, The outer wall of the fixed slide (212) is provided with a positioning plate (214), and the inside of the fixed rod (301) is provided with a plurality of positioning slots (302) that are adapted to the shape of the positioning plate (214). The positioning plate (214) is fixedly fitted inside the positioning slots (302).

9. The plate-making apparatus for offset printing according to claim 8, characterized in that, Both ends of the fixing rod (301) are provided with limiting plates (303), and the top of the limiting plate (303) is provided with a fixing pad (304).

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