Circuit board vacuum etching device

Abstract

The utility model relates to the technical field of circuit board processing, in particular to a circuit board vacuum etching device which comprises an etching box, a clamping structure is installed in the etching box and comprises a sliding plate, the sliding plate is connected to the bottom end in the etching box in a sliding mode, sliding rails are fixedly connected to the left side and the right side of the top end of the sliding plate, and clamping blocks are connected to the sliding rails in a sliding mode. The rear ends of the clamping blocks are fixedly connected with abutting rods, the other ends of the abutting rods are rotationally connected with abutting wheels, the two sides of the interior of the etching box are fixedly connected with positioning rods, the two sides of the front end of the etching box are rotationally connected with sealing doors, and torsional springs are fixedly connected between the sealing doors and the etching box. Ejector rods are fixedly connected to the left and right sides of the sliding plate, a fixing block is fixedly connected to the top end of the sliding plate, and a first spring is fixedly connected between the abutting rod and the fixing block; the circuit board can be conveniently placed, the circuit board can be rapidly clamped and fixed, and the sealing door can be rapidly closed and opened.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board processing equipment, specifically a circuit board vacuum etching device. Background Technology

[0002] As a core component of electronic products, circuit boards require a crucial step in their manufacturing process: the formation of circuit patterns. Currently, mainstream circuit fabrication processes typically include: depositing a copper layer on an insulating substrate; covering the copper layer with a photoresist dry film; curing and retaining the dry film in the areas with the desired circuit pattern through exposure and development processes, while removing the dry film in non-circuit areas; using the cured dry film as an etching resist mask, removing the exposed copper layer in the non-circuit areas with a chemical etching solution, ultimately forming the desired conductive lines. This etching process often requires the use of etching equipment.

[0003] In the prior art, vacuum etching apparatus has been used in this process. Such apparatus typically includes an etching chamber (etching box) into which the circuit board to be processed is placed for etching.

[0004] The limited space inside the etching chamber and the lack of an efficient and convenient circuit board loading mechanism make circuit board placement difficult. Existing fixing mechanisms often require the operator to manually push the circuit boards at both ends for clamping, which is cumbersome and inefficient.

[0005] To ensure a vacuum or specific atmosphere environment during the etching process, the chamber needs to be equipped with a sealing door and its fixing device. Existing fixing devices are inconvenient to operate when frequently opening and closing the sealing door to load and unload circuit boards. Furthermore, maintaining the sealing door's tightness during etching also relies on this fixing device. The process of repeatedly opening and closing the sealing door and operating the fixing device to load and unload circuit boards is extremely cumbersome, not only increasing the operational burden but also severely impacting the overall efficiency of the etching process.

[0006] Therefore, it is necessary to develop a vacuum etching device that is more convenient and efficient to operate. Utility Model Content

[0007] Based on this, this solution provides a circuit board vacuum etching device that can automatically clamp the circuit board, which not only facilitates the placement of the circuit board, but also quickly clamps and fixes the circuit board, enabling rapid closing and opening of the sealing door.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0009] A circuit board vacuum etching apparatus includes an etching chamber with a clamping structure inside. The clamping structure includes a sliding plate. The sliding plate is slidably connected to the bottom of the etching chamber. Slide rails are fixedly connected to the left and right sides of the top of the sliding plate. Clamping blocks are slidably connected to the slide rails. An abutment rod is fixedly connected to the rear end of the clamping block. An abutment wheel is rotatably connected to the other end of the abutment rod. Positioning rods are fixedly connected to both sides of the inside of the etching chamber. Sealing doors are rotatably connected to both sides of the front of the etching chamber. A torsion spring is fixedly connected between the sealing door and the etching chamber. An abutment plate is fixedly connected to the front of the sliding plate. Top rods are fixedly connected to the left and right sides of the sliding plate. A fixing block is fixedly connected to the top of the sliding plate. A first spring is fixedly connected between the abutment rod and the fixing block.

[0010] Optionally, in one embodiment of the present invention, two slide rails are provided in parallel, and the slide rails as a whole have a T-shaped structure.

[0011] Optionally, in one embodiment of the present invention, the abutting wheel and the positioning rod abut against each other, and the side end of the positioning rod has an inclined structure.

[0012] Optionally, in one embodiment of the present invention, a buffer structure is installed on the skateboard, the buffer structure includes a placement plate, and the placement plate is fixedly connected to the top of the skateboard.

[0013] Optionally, in one embodiment of the present invention, a buffer plate is slidably connected to the side ends of both clamping blocks, and a second spring is fixedly connected between the buffer plate and the clamping block.

[0014] Optionally, in one embodiment of the present invention, a guide rod is fixedly connected to the side end of the buffer plate, and the guide rod and the clamping block are slidably connected.

[0015] Optionally, in one embodiment of the present invention, a transmission structure is installed at the top of the etching box. The transmission structure includes a connecting rod. The connecting rod is fixedly connected to the slide plate. An installation rod is fixedly connected to the top of the connecting rod. A limit plate is fixedly connected to the front end of the installation rod.

[0016] Optionally, in one embodiment of the present invention, an electric telescopic rod is fixedly connected to the top of the etching box, a connecting plate is fixedly connected to the top of the limiting plate, and the output end of the electric telescopic rod is fixedly connected to the connecting plate.

[0017] Optionally, in one embodiment of the present invention, an etching structure is installed on the etching box, the etching structure includes a base, the bottom of the etching box is fixedly connected to the base, and a collection box is installed inside the base.

[0018] Optionally, in one embodiment of the present invention, an etching component is installed at the top inside the etching box, a connecting pipe is fixedly connected to the top of the etching box, the top of the connecting pipe is connected to an external etching solution supply device, and the bottom of the connecting pipe is connected to the etching component.

[0019] Compared with the prior art, the circuit board vacuum etching device provided by this utility model has the following characteristics:

[0020] When etching is required, the slide plate slides into the etching chamber. When the abutment wheel on the side of the abutment rod abuts against the inclined positioning rod, it drives the clamping block to slide on the slide rail, thereby automatically clamping the circuit board. This facilitates the placement of the circuit board and allows for quick clamping and fixing. After the slide plate slides until the top rod and the sealing door separate, it drives the two sealing doors to close automatically. The slide plate continues to slide inward, and through the abutment plate and the two sealing doors, it can seal the etching chamber and quickly close and open the sealing doors. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure between the skateboard and the placement board of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the slide rail and the clamping block of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the sealing door and the torsion spring of this utility model.

[0026] Reference numerals: Etching box 1, Clamping structure 2, Slide plate 201, Slide rail 202, Clamping block 203, Abutting rod 204, Abutting wheel 205, Positioning rod 206, Sealing door 207, Torsion spring 208, Abutting plate 209, Top rod 210, First spring 211, Fixing block 212, Buffer structure 3, Placement plate 301, Buffer plate 302, Second spring guide rod 303, Transmission structure 4, Connecting rod 401, Mounting rod 402, Limiting plate 403, Electric telescopic rod 404, Connecting plate 405, Etching structure 5, Base 501, Collection box 502, Etching assembly 503, Connecting pipe 504. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0028] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] Example 1

[0030] To improve the ease of use of existing vacuum etching equipment, a vacuum etching device that is easier to operate was designed, as follows:

[0031] like Figure 1-4 As shown, a circuit board vacuum etching apparatus includes an etching chamber 1, a clamping structure 2 installed inside the etching chamber 1, and a sliding plate 201. The sliding plate 201 is slidably connected to the bottom of the etching chamber 1. Slide rails 202 are fixedly connected to the left and right sides of the top of the sliding plate 201. Clamping blocks 203 are slidably connected to the slide rails 202. An abutment rod 204 is fixedly connected to the rear end of the clamping block 203. An abutment wheel 205 is rotatably connected to the other end of the abutment rod 204. Positioning rods 206 are fixedly connected to both sides of the inside of the etching chamber 1. Sealing doors 207 are rotatably connected to both sides of the front end of the etching chamber 1. A torsion spring 208 is fixedly connected between the sealing door 207 and the etching chamber 1. An abutment plate 209 is fixedly connected to the front end of the sliding plate 201. Top rods 210 are fixedly connected to both sides of the sliding plate 201. A fixing block 212 is fixedly connected to the top of the sliding plate 201. A first spring 211 is fixedly connected between the abutment rod 204 and the fixing block 212.

[0032] Two slide rails 202 are provided in parallel relationship. The slide rails 202 have an overall T-shaped structure, which can guide and limit the clamping block 203.

[0033] The abutting wheel 205 and the positioning rod 206 abut against each other. The side end of the positioning rod 206 has an inclined structure, which can drive the abutting rod 204 to slide.

[0034] A buffer structure 3 is installed on the skateboard 201. The buffer structure 3 includes a placement plate 301. The placement plate 301 is fixedly connected to the top of the skateboard 201, which can place the circuit board.

[0035] Both clamping blocks 203 have a buffer plate 302 slidably connected to their sides. A second spring 303 is fixedly connected between the buffer plate 302 and the clamping block 203, which can buffer the circuit board when it is placed.

[0036] A guide rod 304 is fixedly connected to the side end of the buffer plate 302. The guide rod 304 and the clamping block 203 are slidably connected, which can guide and limit the buffer plate 302.

[0037] A transmission structure 4 is installed at the top of the etching box 1. The transmission structure 4 includes a connecting rod 401. The connecting rod 401 is fixedly connected to the slide plate 201. The top of the connecting rod 401 is fixedly connected to the mounting rod 402. The front end of the mounting rod 402 is fixedly connected to the limiting plate 403. An electric telescopic rod 404 is fixedly connected to the top of the etching box 1. The top of the limiting plate 403 is fixedly connected to the connecting plate 405. The output end of the electric telescopic rod 404 is fixedly connected to the connecting plate 405, which can better fix the sealing door 207.

[0038] An etching structure 5 is installed on the etching box 1. The etching structure 5 includes a base 501. The base 501 is fixedly connected to the bottom of the etching box 1. A collection box 502 is installed inside the base 501 to collect waste liquid.

[0039] An etching component 503 is installed at the top inside the etching chamber 1. A connecting pipe 504 is fixedly connected to the top of the etching chamber 1. The top of the connecting pipe 504 is connected to an external etching solution supply device, and the bottom of the connecting pipe 504 is connected to the etching component 503, which can perform etching on the circuit board.

[0040] Working principle:

[0041] When etching is required, the circuit board is placed on the placement plate 301, and then the electric telescopic rod 404 is activated. The mounting rod 402 and the connecting rod 401 slide through the connecting plate 405 and the limiting plate 403, thus driving the slide plate 201 to slide into the etching box 1. When the abutting wheel 205 on the side of the abutting rod 204 abuts against the inclined positioning rod 206, the clamping block 203 slides on the slide rail 202, thus clamping the circuit board through the buffer plate 302. At the same time, the second spring 303 buffers the circuit board clamped by the buffer plate 302. The guide rod 304 guides and limits the buffer plate 302, which not only facilitates the placement of the circuit board, but also enables the circuit board to be clamped and fixed quickly.

[0042] After the slide plate 201 slides to the point where the top rod 210 and the sealing door 207 separate, the two sealing doors 207 are automatically closed by the torsion spring 208. Then the slide plate 201 continues to slide inward, and the two sealing doors 207 are sealed by the contact plate 209 and the limit plate 403. This allows for the rapid closing and opening of the sealing doors 207. Then the connecting pipe 504 is connected to the external etching liquid supply equipment. After the air inside the etching box 1 is evacuated, the circuit board inside the etching box 1 can be etched by the etching component 503. The waste liquid can be collected by the collection box 502 in the base 501.

[0043] After etching is completed, the electric telescopic rod 404 is activated in reverse, causing the slide plate 201 to slide outward. After the contact plate 209 and the limiting plate 403 separate from the sealing door 207, the sealing door 207 can be automatically opened by the contact of the top rod 210 and the sealing door 207. At the same time, when the contact wheel 205 and the positioning rod 206 separate, the clamping block 203 is slidably reset by the first spring 211, and the etched circuit board can be taken out.

[0044] The vacuum etching device of this solution uses an electric telescopic rod 404 to drive the slide plate 201 to slide inward as a whole. By using the cooperation of the contact wheel 205 and the tilting positioning rod 206, the clamping blocks 203 on both sides slide towards each other, so as to realize the synchronous and automatic clamping and fixing of the circuit board.

[0045] The slide rail 202 ensures the stability and precise guidance of the movement of the clamp 203, avoids cumbersome and inconvenient operation, and improves the efficiency of circuit board loading and fixing.

[0046] The buffer plate 302 provides cushioning force during automatic clamping of the circuit board to prevent damage to the circuit board.

[0047] When the top rod 210 separates from the sealing door 207, the spring force of the torsion spring drives the sealing door 207 to close automatically. The contact plate and the limit plate work together to ensure that the sealing door 207 is tightly closed and pressed, achieving a reliable seal. The contact plate and the limit plate separate first, and then the top rod 210 contacts and pushes the sealing door 207 to open automatically. This eliminates the cumbersome steps of manually operating the fixing device to open and lock the sealing door 207, realizing the fully automatic and rapid opening and closing of the sealing door 207, and shortening the auxiliary time for loading and unloading the circuit board.

[0048] It improves operational convenience and efficiency, solves the problem of low efficiency caused by manual placement, fixed clamping, switching and fixing of the sealing door 207 in the existing device, and improves the etching efficiency of the circuit board.

[0049] Example 2

[0050] In this embodiment, the structure of the vacuum etching device is basically the same as that of Embodiment 1, except that an independent electromagnetic door lock is added. The electromagnetic door lock is triggered by the position of the slide plate 201201 or the state of the electric telescopic rod 404404 to lock / unlock, serving as a supplement or backup to the abutment plate 209 to ensure absolute sealing and safety under high vacuum.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A circuit board vacuum etching apparatus, comprising an etching chamber, characterized in that: The etching chamber is equipped with a clamping structure, which includes a sliding plate. The sliding plate is slidably connected to the bottom of the etching chamber. Slide rails are fixedly connected to the top left and right sides of the sliding plate. Clamping blocks are slidably connected to the slide rails. An abutment rod is fixedly connected to the rear end of the clamping block. An abutment wheel is rotatably connected to the other end of the abutment rod. Positioning rods are fixedly connected to both sides of the etching chamber. Sealing doors are rotatably connected to both sides of the front end of the etching chamber. A torsion spring is fixedly connected between the sealing door and the etching chamber. An abutment plate is fixedly connected to the front end of the sliding plate. Top rods are fixedly connected to both sides of the sliding plate. A fixing block is fixedly connected to the top end of the sliding plate. A first spring is fixedly connected between the abutment rod and the fixing block.

2. The circuit board vacuum etching apparatus according to claim 1, characterized in that: The slide rails are arranged in two parallel positions, and the slide rails as a whole have a T-shaped structure.

3. The circuit board vacuum etching apparatus according to claim 1, characterized in that: The abutting wheel and the positioning rod are in contact, and the side end of the positioning rod has an inclined structure.

4. The circuit board vacuum etching apparatus according to claim 1, characterized in that: The skateboard is equipped with a buffer structure, which includes a placement plate, and the placement plate is fixedly connected to the top of the skateboard.

5. The circuit board vacuum etching apparatus according to claim 1, characterized in that: Both clamping blocks are slidably connected to a buffer plate on their sides, and a second spring is fixedly connected between the buffer plate and the clamping block.

6. The circuit board vacuum etching apparatus according to claim 5, characterized in that: A guide rod is fixedly connected to the side end of the buffer plate, and the guide rod and the clamping block are slidably connected.

7. The circuit board vacuum etching apparatus according to claim 1, characterized in that: The top of the etching box is equipped with a transmission structure, which includes a connecting rod. The connecting rod is fixedly connected to the slide plate, and the top of the connecting rod is fixedly connected to a mounting rod. The front end of the mounting rod is fixedly connected to a limit plate.

8. The circuit board vacuum etching apparatus according to claim 7, characterized in that: An electric telescopic rod is fixedly connected to the top of the etching box, and a connecting plate is fixedly connected to the top of the limiting plate. The output end of the electric telescopic rod is fixedly connected to the connecting plate.

9. The circuit board vacuum etching apparatus according to claim 1, characterized in that: An etching structure is installed on the etching box. The etching structure includes a base. The bottom of the etching box is fixedly connected to the base, and a collection box is installed inside the base.

10. A circuit board vacuum etching apparatus according to claim 1, characterized in that: An etching component is installed at the top inside the etching chamber. A connecting pipe is fixedly connected to the top of the etching chamber. The top of the connecting pipe is connected to an external etching solution supply device, and the bottom of the connecting pipe is connected to the etching component.

Images