CN211580329U

CN211580329U - Exposure apparatus

Info

Publication number: CN211580329U
Application number: CN201921877880.5U
Authority: CN
Inventors: 方少平; 樊群森; 王欢; 许志件
Original assignee: Huizhou Sanlicheng Technology Co ltd
Current assignee: Huizhou Sanlicheng Technology Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-09-25
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses an exposure equipment is through setting up stage body external member and pan feeding external member. The film and the PCB can be accurately aligned by arranging the L-shaped positioning bulges, arranging the right-angle positioning parts on the L-shaped positioning bulges, aligning and contacting four corners of the film with the right-angle positioning parts in a one-to-one correspondence manner, and aligning and contacting the four corners of the PCB with the right-angle positioning parts in a one-to-one correspondence manner, namely, the L-shaped positioning bulges play a positioning role, so that errors caused by misalignment are greatly reduced; in addition, because the L-shaped positioning bulges are provided with the round corners at the positions far away from the glass sliding plate, when the sealing cover is closed, the sealing cover can be in close contact with the L-shaped positioning bulges, namely, the space formed between the sealing cover and the glass sliding plate is small, the vacuum rate of the internal space of the exposure equipment is easily ensured, and the film is more tightly attached to the PCB; moreover, the heat dissipation performance of the exposure equipment can be enhanced by the arrangement of the plurality of heat dissipation grooves.

Description

Exposure apparatus

Technical Field

The utility model relates to a PCB board production technical field especially relates to an exposure equipment.

Background

At present, a PCB, which is also called a Printed Circuit Board (PCB) in chinese name, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing. After the electronic equipment adopts the printed board, because of the consistency of the printed boards of the same type, the error of manual wiring is avoided, the automatic insertion or mounting, the automatic tin soldering and the automatic detection of electronic components can be realized, the quality of the electronic equipment is ensured, the labor productivity is improved, the cost is reduced, and the maintenance is convenient. The printed boards have evolved from single-layer to double-sided, multi-layer and flexible, and still remain the trend for each. Due to the continuous development towards high precision, high density and high reliability, the volume is continuously reduced, the cost is reduced, and the performance is improved, so that the printed board still keeps strong vitality in the development engineering of future electronic equipment.

For the production process of the PCB, the exposure process of the PCB is involved, the exposure process is to transfer the circuit on the film to the PCB, and the circuit can be etched on the PCB according to the circuit subsequently. In order to expose the process, if realize the exposure, just need utilize exposure equipment, exposure equipment embeds has the ultraviolet lamp, and specific process is, at first scribbles the one deck photosensitive liquid on the surface of PCB board, dries the PCB board under the high temperature condition again, pastes the film on the PCB board again, tears the film off at last after the exposure of ultraviolet lamp, just can shift the circuit to on the PCB board. However, in the above process, it is necessary to ensure that the film and the PCB are aligned accurately, otherwise, the circuit may deviate from the predetermined position in the transfer process, thereby causing a mis-process, most of the existing alignment operations are manual alignment methods, and the four corners of the PCB are aligned with the film, but the above methods are still very easy to generate alignment errors, i.e. the PCB and the film cannot be aligned accurately; in addition, in the exposure process, the vacuum degree of the conventional exposure space is insufficient, so that the bonding force between the film and the PCB is insufficient, and the exposure success rate of the PCB is easy to cause; furthermore, since the ultraviolet lamp is required to irradiate during the exposure process, a large amount of heat is accumulated in the exposure apparatus, and if the heat is not processed in time, the inside of the exposure apparatus may not work normally due to the excessive heat.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing one kind and can letting film and PCB board accurate counterpoint, be difficult to produce the counterpoint error and lead to the mistake processing, can guarantee the vacuum rate, let the film stabilize laminating and the exposure equipment of heat dispersion preferred on the PCB board.

The purpose of the utility model is realized through the following technical scheme:

an exposure apparatus comprising:

the table body suite comprises a shell, a sealing cover, a shading film and a plurality of ultraviolet lamps, wherein an exposure cavity is formed in the shell, a plurality of radiating grooves are formed in the shell, the sealing cover is hinged with the shell, the shading film is arranged on the sealing cover, each ultraviolet lamp is arranged in the shell, and each ultraviolet lamp is located in the exposure cavity; and

a feeding set, the feeding set comprises a slide rail, a glass slide plate, a feeding driver and a plurality of L-shaped positioning bulges, the slide rail is arranged in the shell, the end part of the slide rail extends into the exposure cavity, the glass slide plate is arranged on the slide rail, the glass slide plate can slide relative to the slide rail, the feeding driver is arranged in the shell, and the drive shaft of the feeding driver is connected with the glass slide plate, the feeding driver is used for driving the glass slide plate to move towards the direction close to or away from the exposure cavity, each L-shaped positioning bulge is arranged on the glass slide plate and is axially and symmetrically distributed along the central axis of the glass slide plate, each L-shaped positioning bulge is provided with a right-angle positioning part, and the L-shaped positioning bulges are provided with round corners at the positions far away from the glass slide plate.

In one embodiment, the shell is provided with 4 to 6 heat dissipation groove bodies, and a space is arranged between every two adjacent heat dissipation groove bodies.

In one embodiment, a heat conductive adhesive layer is disposed in each heat dissipation groove.

In one embodiment, the table kit further comprises a carrying rack disposed on the cover.

In one embodiment, the table body kit further comprises a heat insulation sleeve, the heat insulation sleeve is sleeved on the hand-held frame, a plurality of anti-skid grains are arranged on the heat insulation sleeve, and an interval is arranged between every two adjacent anti-skid grains.

In one embodiment, the table kit further comprises a cushion pad disposed on the housing at a location away from the cover.

In one embodiment, the table kit further comprises an explosion-proof plate, and the explosion-proof plate is arranged on the sealing cover.

In one embodiment, the cover has a receiving groove, and the explosion-proof sheet is disposed in the receiving groove.

In one embodiment, the feeding driver comprises an air cylinder and a pull rod, the air cylinder is arranged in the shell, one end of the pull rod is connected with a driving shaft of the air cylinder, and the other end of the pull rod is connected with the glass sliding plate.

In one embodiment, a chamfered portion is provided on the cover.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model discloses an exposure equipment is through setting up stage body external member and pan feeding external member. In the practical application process, the plurality of L-shaped positioning bulges are arranged, and each L-shaped positioning bulge is provided with the right-angle positioning part, four corners of the film are in one-to-one correspondence to be in alignment contact with each right-angle positioning part, and then four corners of the PCB are in one-to-one correspondence to be in alignment contact with each right-angle positioning part, so that the accurate alignment of the film and the PCB can be completed, namely, each L-shaped positioning bulge plays a positioning role, and the error caused by the misalignment is greatly reduced; in addition, because the L-shaped positioning bulges are provided with the round corners at the positions far away from the glass sliding plate, when the sealing cover is closed, the sealing cover can be in close contact with the L-shaped positioning bulges, namely, the space formed between the sealing cover and the glass sliding plate is small, the vacuum rate of the internal space of the exposure equipment is easily ensured, and the film is more tightly attached to the PCB; moreover, the heat dissipation performance of the exposure equipment can be enhanced due to the arrangement of the plurality of heat dissipation grooves, and the damage caused by the excessive heat accumulated in the exposure equipment is prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an exposure apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an exposure apparatus at another viewing angle according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of an exposure apparatus according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view at a of fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an exposure apparatus 10 includes a stage assembly 100 and a feeding assembly 200.

Thus, it should be noted that the stage assembly 100 is used for performing an exposure operation on a PCB; the feeding set 200 feeds the film and the PCB for exposure.

Referring to fig. 1, 2 and 3, the table kit 100 includes a housing 110, a cover 120, a light shielding film 130 and a plurality of ultraviolet lamps 140, wherein an exposure cavity 111 is formed in the housing 110, a plurality of heat sink bodies 112 are formed on the housing 110, the cover 120 is hinged to the housing 110, the light shielding film 130 is disposed on the cover 120, each ultraviolet lamp 140 is disposed in the housing 110, and each ultraviolet lamp 140 is disposed in the exposure cavity 111.

Thus, it should be noted that both the housing 110 and the cover 120 play a role of protection; the light shielding film 130 plays a role of shielding light; each ultraviolet lamp 140 is located in the exposure cavity 111, and when the feeding kit 200 transmits the film and the PCB, each ultraviolet lamp 140 performs an exposure operation on the PCB, so that a circuit located on the film is transferred to the PCB; the arrangement of the plurality of heat dissipation grooves 112 can enhance the heat dissipation performance of the exposure apparatus 10, and prevent the exposure apparatus 10 from being damaged due to excessive heat accumulated inside.

Referring to fig. 1, 3 and 4, the feeding assembly 200 includes a slide rail 210, a glass slide 220, a feeding driver and a plurality of L-shaped positioning protrusions 230, the slide rail 210 is disposed in the housing 110, and the end of the slide rail 210 extends into the exposure cavity 111, the glass slide 220 is disposed on the slide rail 210, and the glass slide 220 can slide relative to the slide rail 210, the feeding driver is disposed in the housing 110, and the driving shaft of the feeding driver is connected with the glass slide plate 220, the feeding driver is used for driving the glass slide plate 220 to move towards the direction close to or away from the exposure cavity 111, each L-shaped positioning protrusion 230 is arranged on the glass slide plate 220, each L-shaped positioning protrusion 230 is axially and symmetrically distributed with the central axis of the glass slide plate 220, each L-shaped positioning protrusion 230 is provided with a right-angle positioning part 231, and each L-shaped positioning protrusion 230 is provided with a rounded portion 232 at a position away from the glass slide plate 220.

Thus, it should be noted that, the plurality of L-shaped positioning protrusions 230 are arranged, and each L-shaped positioning protrusion 230 is provided with a right-angle positioning portion 231, four corners of the film are in one-to-one correspondence with each right-angle positioning portion, and then four corners of the PCB are in one-to-one correspondence with each right-angle positioning portion, so that accurate alignment of the film and the PCB can be completed, that is, each L-shaped positioning protrusion 230 plays a positioning role, and errors caused by misalignment are greatly reduced; in addition, since each L-shaped positioning protrusion 230 is provided with a rounded corner 232 at a position far away from the glass slide plate, when the cover 120 is closed, the cover 120 can be in close contact with each L-shaped positioning protrusion 230, that is, the space formed between the cover 120 and the glass slide plate 220 is small, so that the vacuum rate of the internal space of the exposure apparatus 10 is easily ensured, and the film and the PCB are attached more tightly.

Further, in one embodiment, the housing 110 is provided with 4 to 6 heat dissipation grooves 112, and a space is provided between each two adjacent heat dissipation grooves 112.

Therefore, it should be noted that, an interval is provided between two adjacent heat dissipation groove bodies 112, which can improve the overall heat dissipation performance of the exposure apparatus 10, and the specific number of the heat dissipation groove bodies 112 can be flexibly set according to the actual situation, and is preferably 4 to 6. Specifically, each heat dissipation groove 112 is provided therein with a heat conductive adhesive layer. As such, it should be noted that the provision of the thermal conductive adhesive layer can further enhance the overall heat dissipation performance of the exposure apparatus 10.

Further, referring to fig. 1 again, in one embodiment, the table set 100 further includes a portable rack 150, and the portable rack 150 is disposed on the cover 120.

Thus, it should be noted that the hand-held frame 150 is provided to facilitate the operator opening or closing the cover 120.

Further, in an embodiment, the table body set 100 further includes a heat insulation sleeve, the heat insulation sleeve is sleeved on the hand-held frame 150, and a plurality of anti-slip stripes are disposed on the heat insulation sleeve, and a gap is disposed between two adjacent anti-slip stripes.

Therefore, the heat insulation sleeve plays a role in heat insulation and protects hands; the friction between the heat insulation sleeve and the hand can be increased by the aid of the anti-slip grains, and the heat insulation sleeve can be conveniently grabbed by an operator.

Further, referring to fig. 2 again, in one embodiment, the table kit 100 further includes a cushion 160, and the cushion 160 is disposed on the housing 110 at a position away from the cover 120.

As such, it should be noted that the cushion pad 160 functions as a cushion.

Further, referring to fig. 1 again, in one embodiment, the table set 100 further includes an explosion-proof sheet 170, and the explosion-proof sheet 170 is disposed on the cover 120.

In this way, it should be noted that the explosion-proof sheet 170 plays an explosion-proof role, protects the life safety of the operator, and improves the safety performance of the exposure apparatus 10.

Further, in one embodiment, the cover 120 has a receiving groove, and the explosion-proof sheet 170 is disposed in the receiving groove.

As such, it should be noted that the provision of the accommodating groove can make the overall structure of the exposure apparatus 10 more compact.

Further, in one embodiment, the feeding driver includes an air cylinder and a pull rod, the air cylinder is disposed in the housing 110, one end of the pull rod is connected to the driving shaft of the air cylinder, and the other end of the pull rod is connected to the glass slide 220.

Therefore, it should be noted that, when the glass slide 220 needs to be moved, the cylinder outputs power to pull the pull rod to move, so as to drive the glass slide 220 to move toward the exposure chamber 111.

Further, referring to fig. 1 again, in one embodiment, a chamfered portion 121 is disposed on the cover 120.

As described above, the chamfered portion 121 can prevent the operator from being injured by an excessive contact force when the cap 120 collides with the operator.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An exposure apparatus characterized by comprising:

2. The exposure apparatus according to claim 1, wherein the housing is provided with 4 to 6 heat dissipation grooves, and a space is provided between each two adjacent heat dissipation grooves.

3. The exposure apparatus according to claim 2, wherein a thermal conductive adhesive layer is provided in each of the heat dissipation grooves.

4. The exposure apparatus according to claim 1, wherein the stage kit further comprises a hand-held frame provided on the cover.

5. The exposure apparatus according to claim 4, wherein the stage kit further comprises a heat insulation sleeve, the heat insulation sleeve is sleeved on the hand-held frame, a plurality of anti-slip stripes are arranged on the heat insulation sleeve, and a space is arranged between every two adjacent anti-slip stripes.

6. The exposure apparatus according to claim 1, wherein the stage kit further comprises a cushion pad provided on the housing at a position away from the cover.

7. The exposure apparatus according to claim 1, wherein the stage kit further comprises an explosion-proof sheet provided on the cover.

8. The exposure apparatus according to claim 7, wherein the cover has a receiving groove, and the explosion-proof plate is disposed in the receiving groove.

9. The exposure apparatus according to claim 1, wherein the feed driver comprises an air cylinder and a pull rod, the air cylinder is disposed in the housing, one end of the pull rod is connected to a drive shaft of the air cylinder, and the other end of the pull rod is connected to the glass slide plate.

10. The exposure apparatus according to claim 1, wherein a chamfered portion is provided on the cover.