Auxiliary mechanism for pasting dry film on printed circuit board

Abstract

The utility model relates to the technical field of printed circuit board processing, and discloses an auxiliary mechanism for pasting a dry film on a printed circuit board, which comprises a workbench, the top end of the workbench is fixedly connected with a fixing frame, the inside of the fixing frame is rotatably connected with a dry film shaft, one side of the workbench is provided with a motor, and the other side of the workbench is provided with a rotating shaft. An output shaft of the motor penetrates into the workbench and is fixedly connected with a lead screw through a coupler, the lead screw is in threaded connection with a sliding block, and the top end of the sliding block is fixedly connected with a sliding table. According to the technical scheme, the printed circuit board can be placed through the sliding table, the output shaft of the motor can drive the lead screw to rotate, and when the lead screw rotates, the rotary motion of the sliding block can be converted into linear motion, so that the printed circuit board on the sliding table is driven to move, covering of a dry film is completed, the dry film does not need to be manually pulled, and the working efficiency is improved. Time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board processing, in particular to a dry film pasting auxiliary mechanism for a printed circuit board. Background Art

[0002] The patent document with the published announcement number CN217406813U discloses a dry film sticking auxiliary device for printed circuit boards, including a table top, legs and feet. The four corners of the table top are provided with legs, and the legs are provided with feet under them. The characteristics are as follows: a support frame is provided on one end of the table top, and a dry film shaft and a film roll shaft are provided in parallel between the support frames, and the film roll shaft is located above the dry film shaft; a film cutting groove is provided in the middle of the table top, and a scale is provided on the side of the film cutting groove away from the support frame; a data box is provided at the other end of the table top. The utility model places the dry film on the dry film shaft during operation to ensure that the dry film will not be damaged and reduce the waste of materials; the equipment is used instead of manual holding of the dry film to save labor and improve work efficiency; the utility model has a simple and reliable structure, is easy to process, and is convenient to install and maintain.

[0003] In actual use of the above application documents, it is necessary to manually pull the dry film to cover the printed circuit board. The operation is too complicated, time-consuming and laborious. Therefore, a dry film auxiliary mechanism for applying dry film to a printed circuit board is needed. Utility Model Content

[0004] The utility model aims to provide a dry film pasting auxiliary mechanism for a printed circuit board, which solves the problems raised in the background technology.

[0005] An embodiment of the present application provides a dry film auxiliary mechanism for printed circuit boards, comprising a workbench, a fixing frame fixedly connected to the top of the workbench, a dry film shaft rotatably connected to the inside of the fixing frame, a motor installed on one side of the workbench, an output shaft of the motor passing through the interior of the workbench and fixedly connected to a lead screw via a coupling, a slider threadedly connected to the lead screw, and a sliding table fixedly connected to the top of the slider.

[0006] By adopting the above technical solution, the printed circuit board can be placed on the sliding table, and the output shaft of the motor can drive the lead screw to rotate. When the lead screw rotates, the rotational motion of the slider can be converted into linear motion, thereby driving the printed circuit board on the sliding table to move, completing the coverage of the dry film without manual pulling of the dry film, saving time and effort.

[0007] Optionally, a guide rod is provided on the sliding block, the guide rod is located below the lead screw, and two sides of the guide rod are respectively fixedly connected to two side inner walls of the workbench.

[0008] By adopting the above technical solution, the guide rod can make the slider slide smoothly on the lead screw.

[0009] Optionally, a sliding groove adapted to the sliding table is provided at the top of the workbench along the length direction.

[0010] The adoption of the technical solution is conducive to the sliding of the slider.

[0011] Optionally, a film rolling shaft is rotatably connected inside the fixing frame, and the film rolling shaft is located above the dry film shaft.

[0012] By adopting the above technical solution, the film winding shaft can rewind the PET film torn off the dry film.

[0013] Optionally, reinforcement frames are fixedly connected to both sides of the motor, and screws are passed through the reinforcement frames, and the screws are threadedly connected to the workbench.

[0014] By adopting the above technical solution, the firmness of the motor installation can be improved under the action of the reinforcement frame and the screws.

[0015] Optionally, support columns are fixedly connected to the four corners of the bottom end of the workbench.

[0016] By adopting the above technical solution, the workbench can be stably supported by the support columns.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] The technical solution of the present application can place the printed circuit board through the sliding table, and the output shaft of the motor can drive the lead screw to rotate. When the lead screw rotates, the rotational motion of the slider can be converted into linear motion, thereby driving the printed circuit board on the sliding table to move, completing the coverage of the dry film without manual pulling of the dry film, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 It is a partial cross-sectional structural schematic diagram of a dry film pasting auxiliary mechanism for a printed circuit board according to the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of a dry film pasting auxiliary mechanism for a printed circuit board according to the utility model;

[0022] Figure 3 The utility model is a schematic diagram of the side structure of a fixing frame of a dry film pasting auxiliary mechanism for a printed circuit board.

[0023] In the figure: 1. dry film shaft; 2. fixed frame; 3. film winding shaft; 4. sliding table; 5. slider; 6. workbench; 7. screw; 8. motor; 9. reinforcement frame; 10. support column; 11. guide rod; 12. slide groove; 13. screw. DETAILED DESCRIPTION

[0024] See also Figure 1-3 The utility model provides a technical solution: a printed circuit board dry film pasting auxiliary mechanism, including a workbench 6, the top of the workbench 6 is fixedly connected to a fixing frame 2, the inside of the fixing frame 2 is rotatably connected to a dry film shaft 1, a motor 8 is installed on one side of the workbench 6, the output shaft of the motor 8 is passed through the inside of the workbench 6 and is fixedly connected to a lead screw 13 through a coupling, a slider 5 is threadedly connected to the lead screw 13, and the top of the slider 5 is fixedly connected to a sliding table 4.

[0025] In the technical solution of the utility model, if Figure 1 As shown, a guide rod 11 is provided on the slider 5, and the guide rod 11 is located below the screw 13. Both sides of the guide rod 11 are fixedly connected to the inner walls of both sides of the workbench 6 respectively; the guide rod 11 can make the slider 5 slide smoothly on the screw 13.

[0026] In the technical solution of the utility model, if Figure 1 As shown, a slide groove 12 adapted to the sliding platform 4 is provided at the top of the workbench 6 along the length direction, which is beneficial to the sliding of the sliding platform 4 .

[0027] In the technical solution of the utility model, if Figure 3 As shown, the interior of the fixed frame 2 is rotatably connected with a film reel 3, which is located above the dry film shaft 1; the film reel 3 can reel in the PET film torn off the dry film.

[0028] In the technical solution of the utility model, if Figure 1 As shown, both sides of the motor 8 are fixedly connected with reinforcement frames 9, and screws 7 are passed through the reinforcement frames 9, and the screws 7 are threadedly connected to the workbench 6; under the action of the reinforcement frames 9 and the screws 7, the firmness of the installation of the motor 8 can be improved.

[0029] In the technical solution of the utility model, if Figure 1 As shown, support columns 10 are fixedly connected to the four corners of the bottom end of the workbench 6; the support columns 10 can stably support the workbench 6.

[0030] When in use, first place the printed circuit board on the sliding table 4, then draw out the dry film on the dry film shaft 1 and cover it on the printed circuit board, start the motor 8 through the external power switch, the output shaft of the motor 8 can drive the lead screw 13 to rotate, and when the lead screw 13 rotates, the rotational motion of the slider 5 can be converted into linear motion, thereby driving the printed circuit board on the sliding table 4 to move slowly, and the covering of the dry film can be completed. After covering, the dry film can be manually sheared by a tool, without the need to manually pull the dry film, saving time and effort.

Claims

1. A dry film auxiliary mechanism for printed circuit boards, characterized in that: The invention comprises a workbench (6), the top of the workbench (6) is fixedly connected to a fixing frame (2), the interior of the fixing frame (2) is rotatably connected to a dry film shaft (1), a motor (8) is installed on one side of the workbench (6), the output shaft of the motor (8) is passed through the interior of the workbench (6) and is fixedly connected to a lead screw (13) via a coupling, a slider (5) is threadedly connected to the lead screw (13), and the top of the slider (5) is fixedly connected to a sliding table (4).

2. A printed circuit board dry film pasting auxiliary mechanism according to claim 1, characterized in that: A guide rod (11) is provided on the slide block (5), and the guide rod (11) is located below the lead screw (13). Both sides of the guide rod (11) are respectively fixedly connected to the inner walls of both sides of the workbench (6).

3. A printed circuit board dry film pasting auxiliary mechanism according to claim 1, characterized in that: A sliding groove (12) adapted to the sliding platform (4) is provided at the top end of the workbench (6) along the length direction.

4. A printed circuit board dry film pasting auxiliary mechanism according to claim 1, characterized in that: The interior of the fixed frame (2) is rotatably connected to a film rolling shaft (3), and the film rolling shaft (3) is located above the dry film shaft (1).

5. A printed circuit board dry film pasting auxiliary mechanism according to claim 1, characterized in that: Both sides of the motor (8) are fixedly connected with reinforcement frames (9), screws (7) are passed through the reinforcement frames (9), and the screws (7) are threadedly connected to the workbench (6).

6. A printed circuit board dry film pasting auxiliary mechanism according to claim 1, characterized in that: Support columns (10) are fixedly connected to the four corners of the bottom end of the workbench (6).

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