Circuit board screen printing resistance welding device

Abstract

The utility model relates to a circuit board screen printing resistance welding device which comprises a supporting seat, a placing plate is arranged above the supporting seat, a positioning groove is formed above the placing plate, a first clamping plate is arranged on one side in the positioning groove, a first threaded block is fixedly connected to the bottom of the first clamping plate, a first bidirectional reverse tooth screw rod is connected to the interior of the first threaded block, and a second bidirectional reverse tooth screw rod is connected to the interior of the second threaded block. One end of the first bidirectional left-hand thread screw extends to the outside of the placing plate and is connected with a first motor, and a second clamping plate is arranged on the adjacent side of the first clamping plate. The positioning grooves are formed in the containing plates, the first clamping plate and the second clamping plate can clamp and fix a circuit board, and therefore the stability of the circuit board in the silk-screen process is improved, and due to the fact that the two containing plates, the supporting frame capable of moving left and right, the scraper and the screen printing plate are arranged, when the scraper and the screen printing plate conduct silk-screen on one containing plate, the stability of the circuit board in the silk-screen process is improved. And a worker can carry out feeding on the placing plate on the other side, so that the working time can be saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a circuit board silk screen solder resist device, belonging to the technical field of circuit board processing. Background Art

[0002] Circuit board is also called circuit board, PCB board. The types of circuit board also include aluminum substrate, FR4 board, CEM-1 board. According to the technical process, it can be divided into printed circuit board (copper etching circuit board), rosin circuit board, lead, lead-free tin-spraying circuit board, OSP process, gold process, etc. Screen printing refers to using silk screen as the base and making a silk screen printing plate with pictures and texts through photosensitive plate making method.

[0003] For example, CN218536007U discloses a silk screen solder resist device for single-sided circuit boards. Through the irradiation of UV lamps, the ink on the surface of the circuit board placed on the placement table can be solidified, avoiding the direct use of hot air to blow in the ink on the circuit board, which causes the ink on the circuit board to be blown and offset, resulting in the production of defective circuit boards, and facilitating the collection and feeding of circuit boards. The heat conducting plate at the bottom can preheat the inner cavity of the first connecting groove, and the heat conducting plate at the top can transfer heat to the silk screen plate installed between the U-shaped groove plates, avoiding the ink on the silk screen plate from solidifying due to standing still during the drying process, and can keep the oiliness of the ink on the silk screen plate. However, during the silk screen printing process of the circuit board, since there is no positioning structure on the placement plate, the circuit board placed on the placement plate cannot be effectively fixed and positioned, and a certain amount of time needs to be waited during the silk screen printing process of the circuit board on the placement plate, and other operations cannot be performed during the waiting process, affecting work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit board screen printing solder mask device, by arranging a positioning groove on the placement plate, and the positioning groove is provided with a clamping plate one and a clamping plate two, the clamping plate one and the clamping plate two can clamp and fix the circuit board, thereby improving the stability of the circuit board during screen printing, and by arranging two placement plates and a support frame, a scraper and a screen that can be moved left and right, when the scraper and the screen are screen printing on one placement plate, the staff can load the material on the placement plate on the other side, thereby saving working time and improving work efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circuit board silk screen solder mask device comprises a support seat, a placing plate is provided above the support seat, a positioning groove is provided above the placing plate, a clamping plate is provided on one side inside the positioning groove, a threaded block is fixedly connected to the bottom of the clamping plate, a two-way reverse screw rod is connected inside the threaded block, one end of the two-way reverse screw rod extends to the outside of the placing plate and is connected to the first motor, a clamping plate is provided on the adjacent side of the clamping plate, a threaded block is provided at the bottom of the clamping plate, the threaded block is provided, a two-way reverse screw rod is connected inside the threaded block, and one end of the two-way reverse screw rod is connected to the second motor, a guide seat is provided on one side below the support seat, a support frame is connected inside the guide seat, a cylinder is provided on one side above the support frame, an output end of the cylinder is connected to a pressing plate, a scraper is provided below the pressing plate, and a screen is provided below the scraper.

[0007] Furthermore, the placement plate is provided with two and is symmetrically arranged on both sides of the center line above the support seat, the positioning groove is provided with a sliding groove for accommodating the passage of the threaded block 1, the threaded block 1 is slidably connected inside the positioning groove, the positioning groove is provided with a sliding groove for accommodating the passage of the threaded block 2, and the threaded block 2 is slidably connected inside the positioning groove.

[0008] Furthermore, the screw rod 1 and the screw rod 2 are arranged horizontally and vertically alternately on the placement plate, the bidirectional reverse screw rod 1 is arranged above the bidirectional reverse screw rod 2, and the clamping plate 1 and the clamping plate 2 are slidably connected inside the positioning groove.

[0009] Furthermore, a screw rod is connected through the bottom of the support frame, one end of the screw rod extends to the outside of the guide seat and is connected to the output end of the third motor, and the support frame and the screw rod are connected by threads.

[0010] Furthermore, a slide groove for accommodating the support frame to pass through is provided inside the guide seat, and the support frame is slidably connected inside the guide seat.

[0011] Furthermore, the outside of the screw rod is provided with limit blocks on both sides of the inside of the guide seat, and when the two sides of the support frame respectively contact with the limit blocks, the screen is located directly above the placement plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. By setting a positioning groove on the placement plate, and setting a clamping plate 1 and a clamping plate 2 in the positioning groove, the clamping plate 1 can be moved under the drive of the first motor and the two-way reverse screw rod 1, and the clamping plate 2 can be moved under the drive of the second motor and the two-way reverse screw rod 2, so that the clamping plate 1 and the clamping plate 2 can be clamped on the circuit board. At the same time, since the clamping plate 1 and the clamping plate 2 can be moved flexibly, circuit boards of different sizes can be positioned, which is convenient for the installation and positioning of positioning plates of various sizes, and improves the practicability of fixing the circuit board by the placement plate.

[0014] 2. By setting up two placement plates, and providing a guide seat and a support frame on one side of the support seat, when the third motor on the support frame is running, the third motor can drive the screw to rotate, thereby driving the support frame to move on the guide seat, so that when the scraper and the screen are screen-printing the circuit board on the placement plate on one side, the staff can place and install the circuit board on the placement plate on the other side in advance. When the scraper and the screen are screen-printed, the circuit board on the placement plate on the other side can be quickly screen-printed, thereby improving the utilization rate of working time, saving working time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a circuit board silk screen solder resist device of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the support frame and the screw rod of a circuit board silk screen solder resist device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a placement plate of a circuit board silk screen solder resist device of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure of a two-way reverse threaded screw rod 2 and a threaded block 2 of a circuit board silk screen solder resist device of the utility model;

[0020] Numbers in the figure: 1. Support seat; 2. Placement plate; 3. Positioning groove; 4. Clamp one; 5. Thread block one; 6. Two-way reverse thread screw one; 7. First motor; 8. Clamp two; 9. Thread block two; 10. Two-way reverse thread screw two; 11. Second motor; 12. Guide seat; 13. Support frame; 14. Cylinder; 15. Press plate; 16. Scraper; 17. Screen; 18. Screw; 19. Third motor; 20. Limit block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A circuit board silk screen solder mask device comprises a support seat 1, a placement plate 2 is provided above the support seat 1, a positioning groove 3 is provided above the placement plate 2, a clamping plate 4 is provided on one side inside the positioning groove 3, a threaded block 5 is fixedly connected to the bottom of the clamping plate 4, a bidirectional reverse threaded screw rod 6 is connected inside the threaded block 5, one end of the bidirectional reverse threaded screw rod 6 extends to the outside of the placement plate 2 and is connected to a first motor 7, a clamping plate 2 is provided on the adjacent side of the clamping plate 4, a threaded block 2 9 is provided at the bottom of the clamping plate 2 8, the threaded block 2 9, a bidirectional reverse threaded screw rod 2 10 is connected inside the threaded block 2 9, one end of the bidirectional reverse threaded screw rod 2 10 is connected to a second motor 11, a guide seat 12 is provided on one side below the support seat 1, a support frame 13 is connected inside the guide seat 12, a cylinder 14 is provided on one side above the support frame 13, an output end of the cylinder 14 is connected to a pressing plate 15, a scraper 16 is provided below the pressing plate 15, and a screen 17 is provided below the scraper 16.

[0024] Specifically, the placement plate 2 is provided with two and symmetrically arranged on both sides of the center line above the support seat 1, the positioning groove 3 is provided with a sliding groove for accommodating the threaded block 5 to pass through, the threaded block 5 is slidably connected inside the positioning groove 3, the positioning groove 3 is provided with a sliding groove for accommodating the threaded block 2 9 to pass through, the threaded block 2 9 is slidably connected inside the positioning groove 3, the two-way reverse threaded screw rod 1 6 and the two-way reverse threaded screw rod 2 10 are arranged horizontally and vertically alternately on the placement plate 2, the two-way reverse threaded screw rod 1 6 is arranged above the two-way reverse threaded screw rod 2 10, the clamping plate 1 4 and the clamping plate 2 8 are slidably connected inside the positioning groove 3, the two-way reverse threaded screw rod 1 6 can drive the clamping plate 1 4 on both sides of the positioning groove 3 to move, and the two-way reverse threaded screw rod 2 10 can drive the clamping plate 2 8 on both sides of the positioning groove 3 to move, so that the clamping plate 1 4 and the clamping plate 2 8 can clamp and fix the circuit board.

[0025] Specifically, a screw rod 18 is connected through the bottom of the support frame 13, one end of the screw rod 18 extends to the outside of the guide seat 12 and is connected to the output end of the third motor 19, the support frame 13 and the screw rod 18 are connected by threads, and a slide groove for accommodating the support frame 13 is opened inside the guide seat 12, and the support frame 13 is slidably connected inside the guide seat 12. When the screw rod 18 rotates, it can drive the support frame 13 to move inside the guide seat 12, thereby driving the scraper 16 and the screen 17 to move their positions, so that the scraper 16 and the screen 17 are conveniently moved to the placement plates 2 on both sides above the support seat 1 for silk screen printing.

[0026] Example 2: Please refer to Figure 2 The difference between this embodiment and embodiment 1 is that: the outside of the screw rod 18 is located inside the guide seat 12 and limit blocks 20 are provided on both sides. When the two sides of the support frame 13 respectively contact the limit blocks 20, the screen 17 is directly above the placement plate 2. The limit blocks 20 can locate the moving position of the support frame 13 in the guide seat 12, so that the position of the silk screen 17 after the scraper 16 and the screen 17 move is more accurate, preventing the screen 17 from being offset from the placement plate 2.

[0027] The working principle of the utility model is as follows: when in use, the circuit board is first placed in the positioning groove 3 in one of the placement plates 2, and then the first motor 7 and the second motor 11 are started respectively. When the first motor 7 is running, it can drive the two-way reverse threaded screw rod 6 to rotate, thereby driving the thread block 5 and the clamping plate 4 to move and clamp the circuit board. When the second motor 11 is running, it can drive the two-way reverse threaded screw rod 10 to rotate, thereby driving the thread block 2 9 and the clamping plate 2 8 to move and clamp the circuit board. Then the third motor 19 is started. When the third motor 19 is running, it can drive the screw rod 18 When the screw rod 18 rotates, it can drive the support frame 13 to move on the guide seat 12. When the support frame 13 conflicts with the limit block 20, the screen 17 is directly above the placement plate 2. Then the cylinder 14 is started to drive the scraper 16 and the screen 17 to move downward for screen printing. When the scraper 16 and the screen 17 are screen-printing the circuit board, the worker places and fixes another circuit board on the placement plate 2 on the other side. When the scraper 16 and the screen 17 are screen-printed, the circuit board on the placement plate on the other side can be quickly screen-printed, thereby saving working time and improving work efficiency.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit board screen printing solder mask device, comprising a support seat (1), characterized in that: A placement plate (2) is provided above the support seat (1), a positioning groove (3) is provided above the placement plate (2), a clamping plate (4) is provided on one side of the positioning groove (3), a thread block (5) is fixedly connected to the bottom of the clamping plate (4), a bidirectional reverse threaded rod (6) is connected to the inside of the thread block (5), one end of the bidirectional reverse threaded rod (6) extends to the outside of the placement plate (2) and is connected to the first motor (7), a clamping plate (8) is provided on the adjacent side of the clamping plate (4), and a thread block (9) is provided at the bottom of the clamping plate (8), The thread block 2 (9) is internally connected with a bidirectional reverse threaded rod 2 (10), one end of the bidirectional reverse threaded rod 2 (10) is connected to a second motor (11), a guide seat (12) is provided on one side below the support seat (1), a support frame (13) is internally connected to the guide seat (12), a cylinder (14) is provided on one side above the support frame (13), an output end of the cylinder (14) is connected to a pressure plate (15), a scraper (16) is provided below the pressure plate (15), and a screen (17) is provided below the scraper (16).

2. A circuit board screen printing solder resist device according to claim 1, characterized in that: The placement plate (2) is provided with two symmetrically arranged on both sides of the center line above the support seat (1); the positioning groove (3) is provided with a sliding groove for accommodating the passage of the threaded block 1 (5); the threaded block 1 (5) is slidably connected inside the positioning groove (3); the positioning groove (3) is provided with a sliding groove for accommodating the passage of the threaded block 2 (9); the threaded block 2 (9) is slidably connected inside the positioning groove (3).

3. A circuit board screen printing solder resist device according to claim 1, characterized in that: The bidirectional reverse threaded screw rod 1 (6) and the bidirectional reverse threaded screw rod 2 (10) are arranged horizontally and vertically alternately on the placement plate (2), the bidirectional reverse threaded screw rod 1 (6) is arranged above the bidirectional reverse threaded screw rod 2 (10), and the clamping plate 1 (4) and the clamping plate 2 (8) are slidably connected inside the positioning groove (3).

4. A circuit board screen printing solder resist device according to claim 1, characterized in that: A screw rod (18) is connected through the bottom of the support frame (13), one end of the screw rod (18) extends to the outside of the guide seat (12) and is connected to the output end of the third motor (19), and the support frame (13) and the screw rod (18) are connected by threads.

5. A circuit board screen printing solder resist device according to claim 1, characterized in that: A sliding groove for accommodating the support frame (13) to pass through is provided inside the guide seat (12), and the support frame (13) is slidably connected inside the guide seat (12).

6. A circuit board screen printing solder resist device according to claim 4, characterized in that: The outside of the screw rod (18) is provided with limit blocks (20) on both sides of the inside of the guide seat (12); when the two sides of the support frame (13) respectively contact the limit blocks (20), the screen (17) is located directly above the placement plate (2).

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