Resistance welding wire printing device for circuit board processing

Abstract

The invention relates to the technical field of circuit board processing, in particular to a solder mask screen printing device for circuit board processing, which comprises a scraper assembly, a screen printing assembly, a clamping assembly and a workbench, the clamping assembly comprises a supporting plate, a first motor, a first sliding block, a positive and negative tooth screw rod, a clamping plate and a height adjusting assembly, the supporting plate is arranged on the workbench, and the first motor is arranged on the supporting plate; a sliding groove is formed in the center of the supporting plate, a positive and negative tooth screw rod and two sets of symmetrically-arranged first sliding blocks are arranged in the sliding groove, and the first sliding blocks are in threaded connection with the positive and negative tooth screw rod. The material is supported and clamped, a circuit board is conveniently and stably supported and fixed through cooperation with the height adjusting assembly, smearing operation is conveniently and stably completed through cooperation with the scraper assembly and the silk-screen assembly detachably connected with the scraper assembly, and the silk-screen assembly is convenient to detach, clean and replace and convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board processing, in particular to a solder resist screen printing device for circuit board processing. Background Art

[0002] Solder mask printing is a very important step in the circuit board manufacturing process. It involves applying a layer of special material on the circuit board to form an insulating protective layer, thereby exposing the copper layer only in the areas where soldering is required;

[0003] The existing solder mask screen printing device for circuit board processing is not convenient for clamping and limiting the material, nor is it convenient to adjust the fixed height of the plate according to needs to ensure the stability of its contact with the screen printing plate. Its structure is often integrated, and when local damage occurs, it is not convenient to disassemble, repair, clean and replace, and it is inconvenient to use. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a solder resist screen printing device for circuit board processing.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a solder mask screen printing device for circuit board processing, comprising a scraper assembly, a screen printing assembly, a clamping assembly and a workbench, the clamping assembly comprising a support plate, a first motor, a first slider, a positive and negative thread screw, a clamping plate and a height adjustment assembly, the support plate is arranged on the workbench, a slide groove is arranged at the center of the support plate, positive and negative thread screws and two groups of symmetrically arranged first sliders are arranged in the slide groove, the first slider is threadedly connected to the positive and negative thread screws, a clamping plate is further arranged above the first slider, a clamping groove is arranged at one end of the clamping plate close to the center of the support plate, and the clamping plate A height adjustment component is arranged on it, and the scraper assembly includes an inverted L-shaped bracket, a second lifter, a sliding frame, a second motor, a second slider, a threaded rod and a scraper body. The bracket is arranged on a workbench, the second lifter passes through the top wall of the bracket and is connected to the center of the top wall of the sliding frame, a threaded rod and a second slider are arranged below the sliding frame, the threaded rod is threadedly connected to the second slider, the output end of the second motor passes through the sliding frame and is connected to the threaded rod, the scraper body is arranged below the second slider, and the silk-screen assembly includes a connecting piece and a silk-screen plate, and the left and right sides of the silk-screen plate are connected to the sliding frame through connecting pieces.

[0008] In order to facilitate the adjustment of the height of the material, the present invention has been improved in that the height adjustment component includes a first lifter, a first guide rod and a lifting plate, the first slider is embedded with the first lifter at one end close to the center of the support plate, the first lifter passes through the bottom wall of the clamping plate and is connected to the center of the bottom wall of the lifting plate, a guide groove is also provided on the support plate, a first guide rod passing through the clamping plate is provided under the lifting plate, the first guide rod is adapted to the guide groove, and an auxiliary positioning component is also provided on the clamping plate.

[0009] In order to ensure the stability of the movement of the sliding frame, the present invention is improved in that a second guide rod penetrating the bracket is further arranged above the sliding frame.

[0010] In order to facilitate the stable limiting of materials of a certain width, the present invention has been improved in that the auxiliary positioning assembly includes an insert block, a baffle, a first elastic member and an arc block, the insert block is T-shaped, a slot is provided at one end of the clamping plate away from the clamping groove, the insert block is plugged into the slot, the insert block protrudes from the slot and is connected to the baffle, a lifting groove matched with the baffle is also provided on the lifting plate, a first movable groove is provided at one end of the insert block away from the baffle, two ends of the first elastic member are respectively connected to the inner wall of the first movable groove and the arc block, and an arc groove matched with the arc block is provided in the slot.

[0011] In order to facilitate the disassembly and assembly of the silk screen printing board, the present invention is improved in that the connecting member includes an insert plate, a second elastic member and a clamping block, the insert plates are symmetrically arranged on the left and right sides of the silk screen printing board, and the second movable groove is also arranged on the front and back sides of the insert plate, the two ends of the second elastic member are respectively connected to the inner wall of the second movable groove and the clamping block, a connecting groove adapted to the insert plate is arranged under the sliding frame, and a clamping hole adapted to the clamping block is arranged on the side wall of the connecting groove.

[0012] Preferably, both the first motor and the second motor are servo motors.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a solder resist screen printing device for circuit board processing, which has the following beneficial effects:

[0015] The solder resist screen printing device for processing circuit boards uses a first motor to drive positive and negative threaded screws, and a first slider drives clamping plates to move toward each other to support and clamp materials. A height adjustment component is used to stably support and fix the circuit board. A scraper component and a screen printing component detachably connected to the scraper component are used to stably complete the coating operation. The screen printing component is easy to disassemble, clean and replace, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first front view schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a second front view schematic diagram of the structure of the present invention;

[0018] Figure 3 It is a partial top view schematic diagram of the structure of the present invention;

[0019] Figure 4 This is an exploded schematic diagram of the silk-screen component of the structure of the present invention;

[0020] Figure 5 It is a partial explosion schematic diagram of the structure of the present invention.

[0021] In the figure: 1. workbench; 2. support plate; 3. first motor; 4. first slider; 5. positive and negative thread screws; 6. clamping plate; 7. first lifter; 8. first guide rod; 9. lifting plate; 10. bracket; 11. second lifter; 12. slide frame; 13. second motor; 14. second slider; 15. threaded rod; 16. scraper body; 17. screen printing plate; 18. second guide rod; 19. plug-in block; 20. baffle; 21. first elastic member; 22. arc block; 23. plug-in plate; 24. second elastic member; 25. clamping block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5, a solder mask screen printing device for circuit board processing, comprising a scraper assembly, a screen printing assembly, a clamping assembly and a workbench 1, the clamping assembly comprising a support plate 2, a first motor 3, a first slider 4, a positive and negative thread screw 5, a clamping plate 6 and a height adjustment assembly, the support plate 2 is arranged on the workbench 1, a slide groove is arranged at the center of the support plate 2, the positive and negative thread screw 5 and two groups of symmetrically arranged first sliders 4 are arranged in the slide groove, the first slider 4 is threadedly connected with the positive and negative thread screw 5, a clamping plate 6 is further arranged above the first slider 4, a clamping groove is arranged at one end of the clamping plate 6 near the center of the support plate 2, a height adjustment assembly is arranged on the clamping plate 6, the scraper assembly comprises an inverted L-shaped support The bracket 10, the second lifter 11, the slide frame 12, the second motor 13, the second slider 14, the threaded rod 15 and the scraper body 16, the bracket 10 is set on the workbench 1, the second lifter 11 passes through the top wall of the bracket 10 and is connected to the center of the top wall of the slide frame 12, the threaded rod 15 and the second slider 14 are arranged below the slide frame 12, the threaded rod 15 is threadedly connected to the second slider 14, the output end of the second motor 13 passes through the slide frame 12 and is connected to the threaded rod 15, the scraper body 16 is arranged below the second slider 14, and the silk screen assembly includes a connecting piece and a silk screen plate 17, and the left and right sides of the silk screen plate 17 are connected to the slide frame 12 through connecting pieces.

[0024] During actual use, the workbench 1 provides stable support for the support plate 2. At first, the distance between the two groups of first sliders 4 is large. According to demand, the first motor 3 is started, and the first motor 3 drives the positive and negative threaded screws 5 to rotate. The two groups of first sliders 4 move toward each other, and the clamping plate 6 stably supports the material. Then, the height adjustment component is started to adjust the height of the material. It should be noted that at this time, the bottom wall of the material is located in the clamping groove. Further, the first motor 3 drives the positive and negative threaded screws 5 to rotate, and the clamping plate 6 stably clamps the material. The bracket 10 provides stable support for the second lifter 11, and the second lifter 11 drives the slide frame 12 to descend to a suitable height. At this time, the screen printing plate 17 is connected to the slide frame 12 through a connecting piece, and the screen printing plate 17 contacts the scraper and the circuit board. Then the second motor 13 is started, and the second motor 13 drives the threaded rod 15 to rotate, and the second slider 14 drives the scraper body 16 to move to complete the coating operation. The first motor 3 and the second motor 13 both use stable servo motors.

[0025] In this embodiment, the height adjustment assembly includes a first lifter 7, a first guide rod 8 and a lifting plate 9. The first lifter 7 is embedded in one end of the first slider 4 close to the center of the support plate 2. The first lifter 7 passes through the bottom wall of the clamping plate 6 and is connected to the center of the bottom wall of the lifting plate 9. A guide groove is also provided on the support plate 2. A first guide rod 8 passing through the clamping plate 6 is provided below the lifting plate 9. The first guide rod 8 is adapted to the guide groove. An auxiliary positioning assembly is also provided on the clamping plate 6. When the first lifter 7 is started, the first lifter 7 drives the lifting plate 9 to adjust to a suitable height so as to lift the circuit board. The first guide rod 8 ensures its stability in use.

[0026] In this embodiment, a second guide rod 18 penetrating the bracket 10 is further provided above the slide frame 12 to ensure the stability of the slide frame 12 during lifting and lowering.

[0027] In actual use, the auxiliary positioning assembly includes an insert block 19, a baffle 20, a first elastic member 21 and an arc block 22. The insert block 19 is T-shaped, and a slot is provided at one end of the clamping plate 6 away from the clamping groove. The insert block 19 is plugged into the slot. The insert block 19 protrudes from the slot and is connected to the baffle 20. A lifting groove adapted to the baffle 20 is also provided on the lifting plate 9. A first movable groove is provided at one end of the insert block 19 away from the baffle 20. The two ends of the first elastic member 21 are respectively connected to the inner wall of the first movable groove and the arc block 22. An arc groove adapted to the arc block 22 is provided in the slot. The insert block 19 with the baffle 20 is stably plugged into the slot. According to needs, a corresponding number of auxiliary positioning assemblies can be plugged in to limit the circuit board. When the first movable groove is aligned with the arc groove, the first elastic member 21 pushes the arc block 22, and the arc block 22 is plugged into the arc groove.

[0028] In actual use, the connecting member includes an insert plate 23, a second elastic member 24 and a clamping block 25. The insert plates 23 are symmetrically arranged on the left and right sides of the screen printing plate 17. The insert plates 23 are also arranged on the front and rear sides. The two ends of the second elastic member 24 are respectively connected to the inner wall of the second movable groove and the clamping block 25. A connecting groove adapted to the insert plate 23 is arranged under the slide frame 12. A clamping hole adapted to the clamping block 25 is arranged on the side wall of the connecting groove. The insert plate 23 is inserted into the connecting groove. When the second movable groove is aligned with the clamping hole, the second elastic member 24 pushes the clamping block 25 so that the clamping block 25 is partially inserted into the clamping hole to complete the assembly.

[0029] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0030] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0031] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solder mask screen printing device for circuit board processing, comprising a scraper assembly, a screen printing assembly, a clamping assembly and a workbench (1), characterized in that: The clamping assembly comprises a support plate (2), a first motor (3), a first slider (4), a positive and negative threaded screw (5), a clamping plate (6) and a height adjustment assembly. The support plate (2) is arranged on the workbench (1). A slide groove is arranged at the center of the support plate (2). The positive and negative threaded screw (5) and two groups of symmetrically arranged first sliders (4) are arranged in the slide groove. The first slider (4) is threadedly connected to the positive and negative threaded screw (5). A clamping plate (6) is also arranged above the first slider (4). A clamping groove is arranged at one end of the clamping plate (6) close to the center of the support plate (2). A height adjustment assembly is arranged on the clamping plate (6). The scraper assembly comprises an inverted L-shaped bracket (10), a second lifter (11), a slide frame (12), a second motor (13), a second slider (14), a threaded rod (15) and a scraper body (16), the bracket (10) is arranged on a workbench (1), the second lifter (11) passes through the top wall of the bracket (10) and is connected to the center of the top wall of the slide frame (12), a threaded rod (15) and a second slider (14) are arranged below the slide frame (12), the threaded rod (15) is threadedly connected to the second slider (14), the output end of the second motor (13) passes through the slide frame (12) and is connected to the threaded rod (15), the scraper body (16) is arranged below the second slider (14), and the silk screen assembly includes a connecting piece and a silk screen plate (17), and the left and right sides of the silk screen plate (17) are connected to the slide frame (12) through connecting pieces.

2. A solder resist screen printing device for circuit board processing according to claim 1, characterized in that: The height adjustment assembly comprises a first lifter (7), a first guide rod (8) and a lifting plate (9); the first lifter (7) is embedded in one end of the first slider (4) close to the center of the support plate (2); the first lifter (7) passes through the bottom wall of the clamping plate (6) and is connected to the center of the bottom wall of the lifting plate (9); a guide groove is also provided on the support plate (2); a first guide rod (8) passing through the clamping plate (6) is provided below the lifting plate (9); the first guide rod (8) is matched with the guide groove; an auxiliary positioning assembly is also provided on the clamping plate (6).

3. A solder resist screen printing device for circuit board processing according to claim 2, characterized in that: A second guide rod (18) penetrating the bracket (10) is also provided above the sliding frame (12).

4. A solder resist screen printing device for circuit board processing according to claim 3, characterized in that: The auxiliary positioning assembly comprises an insert block (19), a baffle (20), a first elastic member (21) and an arc block (22); the insert block (19) is T-shaped; a slot is provided at one end of the clamping plate (6) away from the clamping slot; the insert block (19) is plugged into the slot; the insert block (19) protrudes from the slot and is connected to the baffle (20); a lifting slot matched with the baffle (20) is also provided on the lifting plate (9); a first movable slot is provided at one end of the insert block (19) away from the baffle (20); two ends of the first elastic member (21) are respectively connected to the inner wall of the first movable slot and the arc block (22); an arc slot matched with the arc block (22) is provided in the slot.

5. A solder resist screen printing device for circuit board processing according to claim 4, characterized in that: The connecting member comprises an insert plate (23), a second elastic member (24) and a clamping block (25); the insert plates (23) are symmetrically arranged on the left and right sides of the screen printing plate (17); the insert plates (23) are also arranged on the front and rear sides of the insert plates (23); the two ends of the second elastic member (24) are respectively connected to the inner wall of the second movable groove and the clamping block (25); a connecting groove matched with the insert plate (23) is arranged below the slide frame (12); and a clamping hole matched with the clamping block (25) is arranged on the side wall of the connecting groove.

6. A solder resist screen printing device for circuit board processing according to claim 5, characterized in that: The first motor (3) and the second motor (13) are both servo motors.

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