Shutter module of mercury lamp box

Abstract

The utility model discloses a shutter module of a mercury lamp box, which comprises an attenuation sheet, a first shutter blade, a second shutter blade, an attenuation switching driving mechanism, a first shutter driving mechanism and a second shutter driving mechanism, and the attenuation switching driving mechanism is connected with the attenuation sheet and used for driving the attenuation sheet to shield a light through hole of the mercury lamp box; and the first shutter driving mechanism and the second shutter driving mechanism are respectively connected with the first shutter blade and the second shutter blade and are respectively used for driving the first shutter blade and the second shutter blade to shield the light through hole of the mercury lamp box. According to the utility model, two shutter blades are adopted, so that the use safety is guaranteed; according to the utility model, the compatibility of the transmittance of the attenuation sheet is increased while the maintenance is convenient; the integrated modular design is adopted, so that the maintenance is convenient; the heat insulation pads are arranged between the shutter blade and the driving mechanism and between the attenuation slice and the driving mechanism, so that the service life of the motor is prolonged compared with an external lamp box.

Description

Technical Field

[0001] This utility model relates to the field of lasers, and more particularly to a shutter module for a mercury lamp lightbox. Background Technology

[0002] High-pressure mercury lamps (especially high-power ones) require a warm-up period to reach a stable light intensity. Frequent switching on and off significantly shortens lamp life (cold starts cause substantial electrode wear). Therefore, the shutter needs to open instantly, once the lamp is lit and operating stably, to allow UV light to reach the work area, or close instantly to block UV light. UV light (especially the UVC band) is highly harmful to the eyes and skin; prolonged or high-intensity exposure can lead to burns, keratitis, and even skin cancer. Therefore, the shutter needs to completely block harmful UV light from leaking outside the lamp housing when closed, preventing operators from being exposed to UV light while placing or adjusting workpieces. Existing mercury lamps have limited functionality and cannot meet user needs. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a shutter module for a mercury lamp lightbox to meet user needs.

[0004] To address the aforementioned technical problems, this utility model provides a shutter module for a mercury lamp lightbox, comprising an attenuator, a first shutter blade, a second shutter blade, an attenuation switching drive mechanism, a first shutter drive mechanism, and a second shutter drive mechanism. The attenuation switching drive mechanism is connected to the attenuator and is used to drive the attenuator to block the light-transmitting aperture of the mercury lamp lightbox. The first shutter drive mechanism and the second shutter drive mechanism are respectively connected to the first shutter blade and the second shutter blade, and are used to drive the first shutter blade and the second shutter blade to block the light-transmitting aperture of the mercury lamp lightbox.

[0005] Furthermore, the second shutter blade and the attenuation switching drive mechanism are motor-driven mechanisms, while the first shutter blade is a cylinder-driven mechanism.

[0006] Furthermore, the second shutter drive mechanism is also equipped with a synchronization baffle, and the shutter module also includes two sets of photoelectric soft limit sensors corresponding to the synchronization baffle.

[0007] Furthermore, the shutter module also includes a second limiting member for hard limiting the second shutter blade.

[0008] Furthermore, the shutter module also includes a first limiting member for limiting the first shutter blade.

[0009] Furthermore, the attenuator is provided with three light-transmitting sheets with transmittance of 25%, 50%, and 75%, respectively.

[0010] Furthermore, the shutter module also includes two sets of soft / hard limiting components corresponding to the attenuator.

[0011] Furthermore, the soft / hard limiting device consists of a photoelectric limiting sensor and a hard limiting device.

[0012] Furthermore, the shutter module also includes a mounting base plate, and the attenuation switching drive mechanism, the first shutter drive mechanism, and the second shutter drive mechanism are disposed on the mounting base plate.

[0013] Furthermore, the attenuation switching drive mechanism and the second shutter drive mechanism are located on the outside of the mounting base plate, while the attenuation plate and the second shutter blade are located on the inside of the mounting base plate. Polyimide heat insulation sleeves are provided between the attenuation switching drive mechanism, the second shutter drive mechanism and the mounting base plate for heat insulation.

[0014] The beneficial effects of this utility model are as follows: This utility model uses two shutter blades, which ensures safe use; This utility model is easy to maintain and increases the compatibility of the attenuator transmittance; This utility model integrates a modular design, which is convenient for maintenance; This utility model has heat insulation pads between the shutter blades and attenuator and the drive mechanism, which improves the service life of the motor compared to the external light box. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the shutter module of the mercury lamp lightbox according to an embodiment of the present invention, taken from one angle.

[0016] Figure 2 This is a three-dimensional structural view of the shutter module of the mercury lamp lightbox according to another embodiment of the present invention.

[0017] Figure 3 This is a partial structural diagram of the shutter module of the mercury lamp lightbox according to an embodiment of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the soft / hard limiting component according to an embodiment of the present invention.

[0019] Explanation of icon numbers

[0020] Attenuator 1, first shutter blade 2, second shutter blade 3, attenuation switching drive mechanism 4, first shutter drive mechanism 5, second shutter drive mechanism 6, mounting base plate 7, synchronization baffle 8, photoelectric soft limit sensor 9, first limit member 10, second limit member 11, light-transmitting sheet 12, hard limit member 13, protective cover 14, light-transmitting hole 15, photoelectric limit sensor 16. Detailed Implementation

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0024] Please refer to Figures 1-4 The shutter module of the mercury lamp light box in this embodiment of the present invention includes an attenuator, a first shutter blade, a second shutter blade, an attenuation switching drive mechanism, a first shutter drive mechanism, and a second shutter drive mechanism.

[0025] The attenuation switching drive mechanism connects to an attenuator and is used to drive the attenuator to block the light-transmitting aperture of the mercury lamp box. The first shutter drive mechanism and the second shutter drive mechanism are respectively connected to the first shutter blade and the second shutter blade, and are used to drive the first shutter blade and the second shutter blade to block the light-transmitting aperture of the mercury lamp box. The first shutter blade is a safety shutter, blocking harmful UV light from leaking outside the lamp box and preventing operators from being exposed to UV light when placing or adjusting workpieces (such as screen printing plates or substrates coated with UV adhesive / ink). The second shutter blade is a conventional shutter, which is quickly switched by the second shutter drive mechanism. The first shutter blade is located inside the second shutter blade (i.e., between the second shutter blade and the mounting plate). A protective cover is installed outside the first shutter drive mechanism.

[0026] In one implementation, the second shutter blade and the attenuation switching drive mechanism are motor drive mechanisms, and the first shutter blade is a cylinder drive mechanism.

[0027] In one implementation, the second shutter drive mechanism is further provided with a synchronization baffle, and the shutter module also includes two sets of photoelectric soft limit sensors corresponding to the synchronization baffle. The two sets of photoelectric soft limit sensors are respectively located at the front and rear positions of the movement stroke of the synchronization baffle, and are used for the first-level limit of the second shutter blades.

[0028] In one embodiment, the shutter module further includes a second limiting member for hard-limiting the second shutter blades. The second limiting member is used for secondary limiting of the second shutter blades.

[0029] In one embodiment, the shutter module further includes a first limiting member for limiting the first shutter blade. The first limiting member may be a U-shaped limiting member, which is installed upside down, with the first shutter blade passing through the U-shaped limiting member. The U-shaped limiting member limits the forward and backward movement of the first shutter blade and its upper surface (to prevent interference with the second shutter blade).

[0030] In one embodiment, the attenuator is provided with three detachable light-transmitting sheets with transmittances of 25%, 50%, and 75%, respectively. This invention allows for four settings, enabling the selection of four light intensity transmittance modes: 25%, 50%, 75%, and 100%. The attenuator is preferably designed to be replaceable, facilitating maintenance and increasing the compatibility of the attenuator's transmittance.

[0031] In one implementation, the shutter module further includes two sets of soft / hard limiting components corresponding to the attenuator. Each soft / hard limiting component consists of a photoelectric limiting sensor and a hard limiting component. The two sets of soft / hard limiting components are respectively positioned before and after the attenuator's movement stroke. The soft / hard limiting components of this invention achieve two levels of limiting the attenuator's movement stroke (the first level of limiting is achieved through a photoelectric limiting sensor, and the second level of limiting is achieved through a hard limiting component).

[0032] In one embodiment, the shutter module further includes a mounting base plate, on which an attenuation switching drive mechanism, a first shutter drive mechanism, and a second shutter drive mechanism are disposed. The mounting base plate has corresponding light-transmitting holes. During installation, the mounting base plate can be directly installed on the outside of the mercury lamp housing. This invention features an integrated modular design, facilitating maintenance. Compared to an externally mounted lamp housing, this invention improves the lifespan of the motor in the drive mechanism.

[0033] In one implementation, the attenuation switching drive mechanism and the second shutter drive mechanism are located on the outside of the mounting base plate, while the attenuation plate and the second shutter blade are located on the inside of the mounting base plate. A polyimide heat insulation sleeve is provided between the attenuation switching drive mechanism, the second shutter drive mechanism (and their drive shafts) and the mounting base plate for heat insulation.

[0034] This invention enables precise control of exposure time and can be applied to photolithography, precision printing, and certain curing processes, expanding the application range of mercury lamps. It achieves millisecond- to minute-level precise exposure and four light intensity transmittance modes, ensuring safety while being applicable to various exposure processes, guaranteeing process consistency and repeatability.

[0035] 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 shutter module for a mercury lamp lightbox, characterized in that, It includes an attenuator, a first shutter blade, a second shutter blade, an attenuation switching drive mechanism, a first shutter drive mechanism, and a second shutter drive mechanism. The attenuation switching drive mechanism is connected to the attenuator and is used to drive the attenuator to block the light-transmitting hole of the mercury lamp box. The first shutter drive mechanism and the second shutter drive mechanism are respectively connected to the first shutter blade and the second shutter blade, and are used to drive the first shutter blade and the second shutter blade to block the light-transmitting hole of the mercury lamp box.

2. The shutter module of the mercury lamp lightbox as described in claim 1, characterized in that, The second shutter blade and the attenuation switching drive mechanism are driven by a motor, while the first shutter blade is driven by a cylinder.

3. The shutter module of the mercury lamp lightbox as described in claim 1, characterized in that, The second shutter drive mechanism is also equipped with a synchronization baffle, and the shutter module also includes two sets of photoelectric soft limit sensors corresponding to the synchronization baffle.

4. The shutter module of the mercury lamp lightbox as described in claim 3, characterized in that, The shutter module also includes a second limiting member for hard limiting the second shutter blade.

5. The shutter module of the mercury lamp lightbox as described in claim 1, characterized in that, The shutter module also includes a first limiting member for limiting the first shutter blade.

6. The shutter module of the mercury lamp lightbox as described in claim 1, characterized in that, The attenuator is equipped with three light-transmitting sheets with transmittance of 25%, 50%, and 75%, respectively.

7. The shutter module of the mercury lamp lightbox as described in claim 1, characterized in that, The shutter module also includes two sets of soft / hard limiting components corresponding to the attenuator.

8. The shutter module of the mercury lamp lightbox as described in claim 7, characterized in that, The soft / hard limiting device consists of a photoelectric limiting sensor and a hard limiting device.

9. The shutter module of the mercury lamp lightbox as described in claim 1, characterized in that, The shutter module also includes a mounting base plate, and an attenuation switching drive mechanism, a first shutter drive mechanism, and a second shutter drive mechanism are disposed on the mounting base plate.

10. The shutter module of the mercury lamp lightbox as described in claim 9, characterized in that, The attenuation switching drive mechanism and the second shutter drive mechanism are located on the outside of the mounting base plate, while the attenuation plate and the second shutter blade are located on the inside of the mounting base plate. Polyimide heat insulation sleeves are provided between the attenuation switching drive mechanism, the second shutter drive mechanism and the mounting base plate for heat insulation.

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