CN213338322U - Screen exposure driving device and plate-making machine - Google Patents

Abstract

The utility model discloses a half tone exposure drive arrangement and platemaking machine, drive arrangement includes first fixed axle, second fixed axle, removes the axle, and first fixed axle and second fixed axle all extend the setting along the first direction, and the half tone of treating the exposure is fixed in between first fixed axle and the second fixed axle, remove the axle along extending the setting with first direction looks vertically second direction, and its one end and first fixed axle sliding connection, the other end and second fixed axle sliding connection remove epaxial exposure head that is provided with, remove the axle and remove along the first direction, drive exposure head on it and expose the half tone. The utility model discloses under the prerequisite that does not increase the whole size of platemaking machine, be applicable to the preparation of the half tone of great size.

Description

Screen exposure driving device and plate-making machine

Technical Field

The utility model belongs to the technical field of half tone preparation technique and specifically relates to a half tone exposure drive arrangement and platemaking machine are related to.

Background

The quality of the screen used for screen printing directly affects the quality of the printed product. The principle of the traditional plate making machine for making the screen printing plate is as follows: a film is pasted on a silk screen printing plate, and the pattern on the film is displayed on the silk screen by exposure of an iodine gallium lamp exposure machine, but the accuracy of the pattern of the manufactured screen printing plate is not high due to the problem of low accuracy of the film manufacturing.

In order to solve the problem, a DMD (digital mirror device) direct imaging technology is adopted at present, a film is omitted, a pattern is directly imaged on a silk screen, and a screen with higher pattern precision is manufactured.

Referring to fig. 1, the scheme for driving the screen exposure on the conventional direct imaging plate making machine is to drive the screen exposure by using a single drive mode of an X-axis and a Y-axis, a laser head for exposure is fixed on a beam frame 70 (i.e., a Y-axis), a screen 90 is fixed on an X-axis linear motor 80, and the screen can move back and forth along with the X-axis to perform exposure. For the screen plate with larger size, because the span of the screen plate is larger, if the driving scheme is adopted, the whole size of the plate making machine is required to be larger, namely the screen plate driving scheme of the existing direct imaging plate making machine is not suitable for manufacturing large-size (such as 2000mm multiplied by 3000 mm) screen plates, and if the manufacturing of large-size screen plates such as automobile glass, lamp strip plates and the like cannot be met, the existing large-size screen plates still need to be manufactured through a film exposure scheme, so that the problem of low precision exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a half tone exposure drive arrangement and platemaking machine suitable for jumbo size half tone preparation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a half tone exposure drive arrangement, includes first fixed axle, second fixed axle, removes the axle, first fixed axle and second fixed axle all extend along the first direction and set up, and the half tone of treating the exposure is fixed in between first fixed axle and the second fixed axle, remove the axle and extend the setting along the second direction with first direction looks vertically, and its one end and first fixed axle sliding connection, the other end and second fixed axle sliding connection, it is provided with the exposure head on the axle to remove, the exposure head is located the top of half tone, it moves along the first direction to remove the axle, drives the exposure head on it and exposes the half tone.

Preferably, the device includes a driving assembly, the driving assembly includes a first driving assembly and a second driving assembly, the first driving assembly includes a first driving motor, the second driving assembly includes a second driving motor, the first driving motor is disposed on the first fixing shaft, the second driving motor is disposed on the second fixing shaft, the first driving motor and the second driving motor are respectively connected with two ends of the moving shaft, and the moving shaft is driven to move in the first direction synchronously.

Preferably, the first driving assembly further comprises a first displacement sensor, the second driving assembly further comprises a second displacement sensor, and the first displacement sensor and the second displacement sensor are respectively used for sensing the positions of two ends of the moving shaft.

Preferably, the driving assembly further comprises a driver, and the first driving assembly and the second driving assembly are both connected with the driver.

Preferably, an adjusting component for adjusting the orthogonality between the moving shaft and the fixed shaft is respectively arranged between the two ends of the moving shaft and the corresponding fixed shaft.

Preferably, the adjusting assembly comprises an adjusting block, a limiting groove is formed in the end face, opposite to the moving shaft, of the adjusting block, and the end portion of the moving shaft is limited in the limiting groove.

Preferably, an adjusting gap is arranged between the inner side wall of the limiting groove and the outer side wall of the end part of the corresponding moving shaft.

Preferably, the adjusting assembly further comprises a fixing member, and the end of the moving shaft is fixed in the limiting groove of the adjusting block through the fixing member.

Preferably, the fixing piece extends from the outer side wall of the adjusting block into the limiting groove to fix the end part of the movable shaft.

The utility model discloses still announced another technical scheme: a plate-making machine comprises the screen exposure driving device.

The utility model has the advantages that:

1. the utility model discloses an adopt the half tone fixed, the roof beam structure at exposure head place exposes the half tone through the drive mode that its removal of biax drive, under the prerequisite that does not increase the plate-making machine overall dimension for the preparation that current direct imaging plate-making machine also is applicable to the half tone of great size has saved the area of half tone preparation equipment.

2. The utility model discloses add the adjusting block between the tip of removing the axle and the fixed axle that corresponds separately, and fixed with the jackscrew cooperation, be convenient for adjust the orthogonality of removing axle and fixed axle.

3. The utility model discloses the platemaking machine is when can making jumbo size half tone, because of not using the film, and uses the direct imaging technique of DMD, so reduced the problem that half tone preparation precision is lost.

Drawings

Fig. 1 is a schematic structural diagram of a conventional screen driving apparatus;

fig. 2 is a schematic structural view of the screen driving device of the present invention;

FIG. 3 is a schematic perspective view of the plate-making machine of the present invention;

FIG. 4 is a schematic perspective view of FIG. 3 at another angle;

FIG. 5 is a schematic left side view of the structure of FIG. 4;

fig. 6 is an enlarged schematic view of a portion a of fig. 5.

Reference numerals:

100. the plate making machine comprises a plate making machine 101, a workbench surface 102, an exposure head 10, a first fixed shaft 20, a second fixed shaft 30, a moving shaft 40, an adjusting assembly 41, an adjusting block 42, a fixing piece 43, a limiting groove 44, an adjusting gap 50, a sliding block 60, a guide rail 70, a beam frame 80, an X-axis linear motor 90 and a screen printing plate.

Detailed Description

The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The utility model discloses a half tone exposes drive arrangement and platemaking machine, it is fixed through adopting the half tone, the biax drive mode that the roof beam structure at exposure head place removed exposes the half tone, under the prerequisite that does not increase the plate-making machine overall dimension for current direct imaging platemaking machine also is applicable to the preparation of the half tone of great size.

Referring to fig. 2 to 5, the present invention discloses a screen exposure driving device, which includes a first fixing shaft 10, a second fixing shaft 20, a movable shaft 30, a driving assembly (not shown) and an adjusting assembly 40, wherein the first fixing shaft 10 and the second fixing shaft 20 are fixed on a working platform 101 of a plate making machine 100, and both extend and distribute along a first direction, and a screen 90 to be exposed is fixed between the first fixing shaft 10 and the second fixing shaft 20. The movable shaft 30 is located above the two fixed shafts and extends in a second direction perpendicular to the first direction, two ends of the movable shaft 30 are connected with the first fixed shaft 10 and the second fixed shaft 20 in a sliding mode through the driving assembly respectively, the exposure head 102 is installed on the movable shaft 30, the movable shaft 30 moves in the first direction along the first fixed shaft 10 and the second fixed shaft 20 under the driving of the driving assembly, and the exposure head 102 is driven to expose the screen printing plate on the working table top 101 while moving, so that the movable shaft 30 is suitable for manufacturing the screen printing plate with the larger size.

Specifically, if the first direction is defined as the X-axis direction, the first fixed shaft 10 and the second fixed shaft 20 are two X-axes, and both of them are used to provide the moving shaft 30 with a guiding function in the X-axis direction, so that the moving shaft 30 moves in the X-axis direction.

Correspondingly, when the second direction is defined as the Y-axis direction perpendicular to the X-axis direction, the moving shaft 30 is the Y-axis, the moving shaft 30 is a beam frame on the plate making machine 100 for mounting an exposure head 102 (such as a laser head, not shown) for exposure, and the exposure head 102 is generally disposed along the Z-axis direction perpendicular to both the X-axis and the Y-axis and above the screen plate.

One end of the movable shaft 30 is slidably connected to the first fixed shaft 10, and the other end is slidably connected to the second fixed shaft 20. in practice, the movable shaft 30 can be slidably connected to the corresponding fixed shaft by a sliding structure of the sliding block 50 and the guide rail 60, for example, the guide rail 60 can be disposed on the first fixed shaft 10 and the second fixed shaft 20, and the sliding block 50 matched with the guide rail 60 is disposed at the end of the movable shaft 30. The utility model discloses do not injecing to this, as long as can realize removing axle 30 and fixed axle looks sliding connection's sliding construction all is applicable to the utility model discloses.

The driving assembly comprises two groups of driving assemblies and drivers, and the two groups of driving assemblies are defined as a first driving assembly and a second driving assembly respectively, wherein the first driving assembly is arranged on the first fixed shaft 10, is connected with one end of the moving shaft 30 and is used for driving the end of the moving shaft 30 to move; the second driving assembly is disposed on the second fixed shaft 20, and is connected to the other end of the moving shaft 30 for driving the movement of the end of the moving shaft 30. The two sets of driving components are connected with the driver and driven by the same driver, so that the two sets of driving components can synchronously drive the two ends of the moving shaft 30.

The first driving assembly and the second driving assembly both comprise a driving motor and a displacement sensor, specifically, the first driving assembly comprises a first driving motor and a first displacement sensor, the first driving motor is arranged on the first fixing shaft 10 and connected with one end of the moving shaft 30, and the first displacement sensor is used for sensing the position of one end of the moving shaft 30 on the first fixing shaft 10. The second driving assembly includes a second driving motor disposed on the second fixing shaft 20 and connected to the other end of the moving shaft 30, and a second displacement sensor for sensing a position of the other end of the moving shaft 30 on the second fixing shaft 20. The two ends of the moving shaft 30 move synchronously along the respective fixed shafts under the driving of the corresponding driving components, and the corresponding positions of the moving shaft 30 can be known by the corresponding displacement sensors. In practice, the first driving motor and the second driving motor may be linear motors. The first displacement sensor and the second displacement sensor can adopt a grating ruler displacement sensor.

As shown in fig. 6, preferably, an adjusting member 40 for adjusting the orthogonality between the moving shaft 30 and the fixed shaft is disposed between each of the two ends of the moving shaft 30 and the corresponding fixed shaft. The adjusting assembly 40 includes an adjusting block 41 and a fixing member 42, a limiting groove 43 is disposed on an end surface (i.e., an upper end surface) of the adjusting block 41 opposite to the moving shaft 30, the limiting groove 43 is formed by downward recessing the upper end surface of the first fixing shaft 10 or the second fixing shaft 20, and an end portion of the moving shaft 30 is limited in the limiting groove 43.

In order to facilitate the adjustment and remove the orthogonality between axle 30 and the fixed axle, be provided with adjustment clearance 44 between the lateral wall of the inside wall of spacing recess 43 and the removal axle 30 tip that corresponds, the utility model discloses do not limit to this adjustment clearance 44's size, generally set up to about 2 mm.

The fixing member 42 serves to fix the position of the end of the moving shaft 30 after the end of the moving shaft 30 is adjusted in position in the corresponding stopper groove 43. In this embodiment, the fixing member 42 is a jack screw which extends from the outer side wall of the adjusting block 41 into the limiting groove 43 to fix the end of the movable shaft 30.

The utility model discloses a platemaking machine 100, including above-mentioned half tone exposure drive arrangement and exposure head 102, half tone exposure drive arrangement's specific structure refers to the above-mentioned description, does not do here and describe repeatedly.

The screen to be exposed is fixed on a working table 101 of the plate making machine and located between the first fixed shaft 10 and the second fixed shaft 20, and the exposure head 102 is mounted on the movable shaft 30 and located above the screen. The movable shaft 30 is driven by the corresponding end driving assembly to move along the first fixed shaft 10 and the second fixed shaft 20 in a first direction, and the movable shaft drives the exposure head 102 to expose the screen on the worktable 101. The utility model discloses platemaking machine 100 is for adopting DMD to carry out the platemaking machine of direct formation of image to the half tone, is applicable to the preparation of the great half tone of size, like the preparation of the large-size half tone of 2000X 3000mm, and the half tone of preparation can be used to elevator decoration, glass decoration etc..

The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.

Claims (10)

1. The utility model provides a half tone exposure drive arrangement, its characterized in that, the device includes first fixed axle, second fixed axle, removes the axle, first fixed axle and second fixed axle all extend along the first direction and set up, and the half tone of treating the exposure is fixed in between first fixed axle and the second fixed axle, remove the axle and extend along the second direction of direction relative vertically and set up, and its one end and first fixed axle sliding connection, the other end and second fixed axle sliding connection, it is provided with the exposure head on the axle to remove, the exposure head is located the top of half tone, it moves along the first direction to remove the axle, drives the exposure head on it and exposes the half tone to.

2. The apparatus of claim 1, wherein the apparatus comprises a driving assembly, the driving assembly comprises a first driving assembly and a second driving assembly, the first driving assembly comprises a first driving motor, the second driving assembly comprises a second driving motor, the first driving motor is disposed on a first fixed shaft, the second driving motor is disposed on a second fixed shaft, the first driving motor and the second driving motor are respectively connected to two ends of the movable shaft, and the movable shaft is driven to move in the first direction synchronously.

3. The screen exposure driving apparatus of claim 2, wherein the first driving module further comprises a first displacement sensor, the second driving module further comprises a second displacement sensor, and the first displacement sensor and the second displacement sensor are respectively used for sensing positions of two ends of the moving shaft.

4. The screen exposure driving apparatus of claim 2, wherein the driving assembly further comprises a driver, and the first driving assembly and the second driving assembly are connected to the driver.

5. The screen exposure driving apparatus according to claim 1, wherein an adjusting member for adjusting orthogonality between the movable shaft and the fixed shaft is provided between each of both end portions of the movable shaft and the corresponding fixed shaft.

6. The screen exposure driving device according to claim 5, wherein the adjusting assembly includes an adjusting block, a limiting groove is disposed on an end surface of the adjusting block opposite to the moving shaft, and an end of the moving shaft is limited in the limiting groove.

7. The screen exposure driving device according to claim 6, wherein an adjustment gap is provided between an inner sidewall of the limit groove and an outer sidewall of the end portion of the corresponding moving shaft.

8. The screen exposure driving apparatus of claim 6 or 7, wherein the adjusting assembly further comprises a fixing member, and an end of the movable shaft is fixed in the limiting groove of the adjusting block through the fixing member.

9. The screen exposure driving apparatus of claim 8, wherein the fixing member extends from an outer sidewall of the adjustment block into the limiting recess to fix an end of the movable shaft.

10. A plate-making machine comprising the screen exposure driving device according to any one of claims 1 to 9.

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