Circuit board surface screen printing equipment

Abstract

The utility model discloses a circuit board surface screen printing device, which relates to the technical field of circuit board screen printing and comprises a circuit board screen printing device body. The turnover mechanism is arranged on the circuit board screen printing equipment body; the screen printing gun is arranged on the turnover mechanism; the lower supporting plate is arranged on the turnover mechanism and is circular; the hot drying assembly is arranged on the lower supporting plate and is used for hot drying after the surface of the circuit board is subjected to silk-screen printing; the driving mechanism is arranged on the lower supporting plate and the hot drying assembly and used for driving the hot drying assembly to operate to dry the circuit board; the disassembly and assembly mechanism is arranged on the lower supporting plate and the driving mechanism and used for disassembly and assembly of the hot drying assembly and the driving mechanism; according to the utility model, through the arrangement of the hot drying assembly, the driving mechanism and the dismounting and mounting mechanism, the circuit board can be subjected to hot drying, drying and forming of printing ink are accelerated, the situation that the printing ink on the printed circuit board cannot be quickly dried and formed after silk-screen printing, and silk-screen printing ink is damaged when the printed circuit board is taken and placed is avoided, and the hot drying assembly and the driving mechanism can be conveniently dismounted, mounted, maintained and cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board screen printing, in particular to a circuit board surface screen printing device. Background Art

[0002] In the prior art, a patent with the publication number CN219761483U discloses a circuit board surface screen printing device. The utility model provides a circuit board surface screen printing device that can automatically flip the circuit board and reduce production costs. A circuit board surface screen printing device includes a workbench, a moving component, a screen printing gun, and a flipping mechanism. The moving component is connected to the upper side of the left part of the workbench, the screen printing gun is connected to the moving component, and a flipping mechanism for automatically flipping the circuit board is provided on the workbench. By the rotation of the output shaft of the motor driving the gear set to rotate, the gear set rotation drives the placement rack to rotate, and the placement rack rotation drives the circuit board to rotate, which can achieve the effect of automatically flipping the circuit board and reducing production costs.

[0003] When the device is in use, the circuit board is flipped by the flipping mechanism, and the upper and lower surfaces of the circuit board are screen printed by the screen printing gun. After the circuit board is screen printed by the screen printing gun, the ink on the circuit board is difficult to quickly dry and form in the natural state, and it is easy to damage the ink when picking up and placing the circuit board and contacting the screen printed ink. Therefore, a circuit board surface screen printing device is needed to meet the use requirements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a circuit board surface screen printing device to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: A circuit board surface screen printing device includes a circuit board screen printing device body;

[0006] A flipping mechanism is arranged on the circuit board screen printing device body;

[0007] A screen printing gun is arranged on the flipping mechanism;

[0008] A lower support plate is arranged on the flipping mechanism and is circular;

[0009] A heat drying component is arranged on the lower support plate and is used for heat drying after the circuit board surface is screen printed;

[0010] A driving mechanism is arranged on the lower support plate and the heat drying component and is used for driving the heat drying component to operate for heat drying the circuit board;

[0011] A disassembly and assembly mechanism is arranged on the lower support plate and the driving mechanism and is used for disassembly and assembly of the heat drying component and the driving mechanism.

[0012] Furthermore, the hot air drying assembly includes a housing disposed on the lower support plate. A rotating shaft is rotatably disposed within the housing. A round sleeve is installed at the bottom end of the rotating shaft. A fan blade is installed on the round sleeve. A heating wire is installed within the housing.

[0013] Furthermore, the hot air drying assembly further includes a cover plate installed on the housing. The cover plate is sleeved on the rotating shaft. A lower limit ring is installed on the rotating shaft. The number of the lower limit rings is one group. One group of the lower limit rings are respectively distributed on the upper and lower sides of the cover plate.

[0014] Furthermore, the driving mechanism includes an upper support plate disposed above the lower support plate. A driving shaft is rotatably installed within the upper support plate. A toothed ring is installed on the driving shaft. A driven gear is installed on the rotating shaft. The driven gear meshes with the toothed ring. A driving motor is installed at the top of the upper support plate. The driving shaft is installed at the output end of the driving motor. An upper limit ring is installed on the rotating shaft. The upper limit rings are respectively distributed on the upper and lower sides of the upper support plate.

[0015] Furthermore, the disassembly and assembly mechanism includes a disassembly and assembly rod installed at the bottom of the upper support plate. A card slot is formed on the disassembly and assembly rod. A socket is installed on the lower support plate. The disassembly and assembly rod is inserted into the socket. A clamping rod is slidably installed on the socket. The clamping rod is clamped in the card slot.

[0016] Furthermore, the disassembly and assembly mechanism further includes a spring installed on the socket. The other end of the spring is installed on the clamping rod.

[0017] Furthermore, the disassembly and assembly mechanism further includes a guide rod installed at the bottom of the upper support plate. A guide seat is installed on the lower support plate. The guide rod is inserted into the guide seat.

[0018] The beneficial effects of the present utility model are as follows:

[0019] In the present utility model, through the settings of the hot air drying assembly and the driving mechanism, when the driving shaft rotates, it will drive the driven gear to rotate. When the driven gear rotates, it will drive the rotating shaft to rotate. When the rotating shaft rotates, it will drive the fan blade to rotate. When the fan blade rotates, it will blow air towards the circuit board. At the same time, the heating wire generates heat and transfers the heat to the air, so as to perform hot air drying on the circuit board, accelerate the drying and forming of the ink, avoid the ink on the circuit board not drying and forming quickly after silk screen printing, and cause damage to the silk screen ink when the circuit board is taken and placed.

[0020] In the present utility model, through the provision of the disassembly and assembly mechanism, when pulling the clamping rod outwards from the socket, the clamping rod is no longer engaged in the clamping groove on the disassembly and assembly rod, and then directly pulling out the heat drying assembly and the driving mechanism upwards can complete the disassembly of the heat drying assembly and the driving mechanism. When it is necessary to install the heat drying assembly and the driving mechanism on the lower support plate, directly insert the disassembly and assembly rod into the socket, and the spring will drive the clamping rod to engage in the clamping groove, so that the heat drying assembly and the driving mechanism can be fixed on the lower support plate, and thus the installation of the heat drying assembly and the driving mechanism on the lower support plate can be completed, which is convenient for disassembling, assembling, maintaining and cleaning the heat drying assembly and the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a three-dimensional structural schematic diagram of a circuit board surface silk-screening device proposed by the present utility model;

[0022] Figure 2 FIG. is a structural schematic diagram of an upper support plate, a rotating shaft, etc. of a circuit board surface silk-screening device proposed by the present utility model;

[0023] Figure 3 FIG. is a structural schematic diagram of a circular sleeve, a fan blade, etc. of a circuit board surface silk-screening device proposed by the present utility model;

[0024] Figure 4 FIG. is a structural schematic diagram of a cover plate, a lower limit ring, etc. of a circuit board surface silk-screening device proposed by the present utility model;

[0025] Figure 5 FIG. is a structural schematic diagram of a toothed ring, a driven gear, etc. of a circuit board surface silk-screening device proposed by the present utility model;

[0026] Figure 6 FIG. is a structural schematic diagram of a socket, a clamping rod, etc. of a circuit board surface silk-screening device proposed by the present utility model.

[0027] In the figure: 1. Circuit board silk-screening device body; 2. Flipping mechanism; 3. Silk-screening gun; 4. Lower support plate; 5. Heat drying assembly; 51. Outer shell; 52. Rotating shaft; 53. Circular sleeve; 54. Fan blade; 55. Heating wire; 56. Cover plate; 57. Lower limit ring; 6. Driving mechanism; 61. Upper support plate; 62. Driving shaft; 63. Toothed ring; 64. Driven gear; 65. Driving motor; 66. Upper limit ring; 7. Disassembly and assembly mechanism; 71. Disassembly and assembly rod; 72. Clamping groove; 73. Socket; 74. Clamping rod; 75. Spring; 76. Guide rod; 77. Guide seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0029] Embodiment:

[0030] As Figures 1-6 shown, this embodiment provides a screen printing device for the surface of a circuit board, including a circuit board screen printing device body 1; a flipping mechanism 2 arranged on the circuit board screen printing device body 1; a screen printing gun 3 arranged on the flipping mechanism 2; a lower support plate 4 arranged on the flipping mechanism 2, which is circular; a heat drying assembly 5 arranged on the lower support plate 4 for heat drying the surface of the circuit board after screen printing; a driving mechanism 6 arranged on the lower support plate 4 and the heat drying assembly 5 for driving the heat drying assembly 5 to operate and heat dry the circuit board; a disassembly and assembly mechanism 7 arranged on the lower support plate 4 and the driving mechanism 6 for the disassembly and assembly of the heat drying assembly 5 and the driving mechanism 6.

[0031] Place the circuit board to be screen printed on the flipping mechanism 2, and screen print the circuit board through the screen printing gun 3. The flipping mechanism 2 can flip the circuit board to screen print both sides of the circuit board. It should be noted that the flipping mechanism 2 and the screen printing gun 3 are existing mechanisms, and the specific working principles will not be elaborated here. During the screen printing process, the driving mechanism 6 can drive the heat drying assembly 5 to heat dry the circuit board, so that the ink screen printed on the circuit board dries quickly. After long-term use, the heat drying assembly 5 and the driving mechanism 6 can be disassembled through the disassembly and assembly mechanism 7, which is convenient for cleaning and maintaining the heat drying assembly 5 and the driving mechanism 6.

[0032] In one embodiment, specifically, the heat drying assembly 5 includes a housing 51 arranged on the lower support plate 4. A rotating shaft 52 is rotatably arranged in the housing 51. A circular sleeve 53 is installed at the bottom end of the rotating shaft 52. A fan blade 54 is installed on the circular sleeve 53. A heating wire 55 is installed in the housing 51.

[0033] In order to heat dry the ink after screen printing and make the ink dry and form quickly, when the screen printing gun 3 performs screen printing, the rotation of the circular sleeve 53 in the housing 51 will drive the fan blade 54 to rotate. The rotation of the fan blade 54 will blow air towards the circuit board. At the same time, the heating wire 55 generates heat and transfers the heat to the air, so as to heat dry the screen printed circuit board and accelerate the drying and forming of the ink. It should be noted that the heating of the heating wire 55 is regulated by electronic components such as a thermostat, which is an existing technology, and the specific principle and structure will not be elaborated here.

[0034] In one embodiment, specifically, the heat drying assembly 5 further includes a cover plate 56 installed on the housing 51. The cover plate 56 is sleeved on the rotating shaft 52. A lower limit ring 57 is installed on the rotating shaft 52, and the lower limit rings 57 are respectively distributed on the upper and lower sides of the cover plate 56.

[0035] To vertically limit the rotating shaft 52 and facilitate the cleaning of the mechanism inside the housing 51, the lower limit rings 57 are respectively distributed on the upper and lower sides of the cover plate 56, which can prevent the rotating shaft 52 from moving up and down inside the cover plate 56 and can only rotate on the cover plate 56. The operator can disassemble the cover plate 56 from the housing 51 to facilitate the cleaning of the mechanism inside the housing 51.

[0036] In one embodiment, specifically, the driving mechanism 6 includes an upper support plate 61 arranged above the lower support plate 4. A driving shaft 62 is rotatably installed inside the upper support plate 61. A toothed ring 63 is installed on the driving shaft 62. A driven gear 64 is installed on the rotating shaft 52. The driven gear 64 meshes with the toothed ring 63. A driving motor 65 is installed on the top of the upper support plate 61. The driving shaft 62 is installed at the output end of the driving motor 65. An upper limit ring 66 is installed on the rotating shaft 52. The upper limit ring 66 is respectively distributed on the upper and lower sides of the upper support plate 61.

[0037] To drive the heat drying assembly 5 to heat dry the ink on the circuit board, the rotation of the driving motor 65 on the upper support plate 61 will drive the rotation of the driving shaft 62. The rotation of the driving shaft 62 will drive the rotation of the toothed ring 63. The rotation of the toothed ring 63 will drive the rotation of the driven gear 64. The rotation of the driven gear 64 will drive the rotation of the rotating shaft 52. The rotation of the rotating shaft 52 will drive the rotation of the fan blade 54, so as to drive the heat drying assembly 5 to heat dry the ink on the circuit board. Through the setting of the upper limit ring 66, the rotating shaft 52 can be vertically limited on the upper support plate 61 to prevent the rotating shaft 52 from falling off the upper support plate 61.

[0038] In one embodiment, specifically, the disassembly and assembly mechanism 7 includes a disassembly and assembly rod 71 installed at the bottom of the upper support plate 61. A card slot 72 is formed on the disassembly and assembly rod 71. A socket 73 is installed on the lower support plate 4. The disassembly and assembly rod 71 is inserted into the socket 73. A clamping rod 74 is slidably installed on the socket 73. The clamping rod 74 is clamped in the card slot 72. The disassembly and assembly mechanism 7 further includes a spring 75 installed on the socket 73. The other end of the spring 75 is installed on the clamping rod 74.

[0039] To disassemble the heat drying assembly 5 and the driving mechanism 6 from the lower support plate 4 for maintenance and cleaning, the clamping rod 74 can be pulled outwards from the socket 73 so that the clamping rod 74 is no longer clamped in the card slot 72 on the disassembly and assembly rod 71, and then the heat drying assembly 5 and the driving mechanism 6 can be directly pulled out upwards to complete the disassembly of the heat drying assembly 5 and the driving mechanism 6, which is convenient for the maintenance and cleaning of the heat drying assembly 5 and the driving mechanism 6. When it is necessary to install the heat drying assembly 5 and the driving mechanism 6 on the lower support plate 4, the disassembly and assembly rod 71 is directly inserted into the socket 73, and the spring 75 will drive the clamping rod 74 to be clamped in the card slot 72, so that the heat drying assembly 5 and the driving mechanism 6 can be fixed on the lower support plate 4, and the installation of the heat drying assembly 5 and the driving mechanism 6 on the lower support plate 4 can be completed.

[0040] In one embodiment, specifically, the disassembly and assembly mechanism 7 further includes a guide rod 76 installed at the bottom of the upper support plate 61. A guide seat 77 is installed on the lower support plate 4, and the guide rod 76 is inserted into the guide seat 77;

[0041] Inserting the guide rod 76 into the guide seat 77 can play a guiding role for the disassembly and assembly rod 71, enabling the disassembly and assembly rod 71 to be inserted into the socket 73 and aligning the slot 72 with the clamping rod 74.

[0042] Working principle: During use, place the circuit board to be screen-printed on the flipping mechanism 2, and perform screen printing on the circuit board with the screen printing gun 3. The flipping mechanism 2 can flip the circuit board to perform screen printing on both sides of the circuit board. During the screen printing process, start the drive motor 65. The rotation of the drive motor 65 on the upper support plate 61 drives the drive shaft 62 to rotate. The rotation of the drive shaft 62 drives the gear ring 63 to rotate. The rotation of the gear ring 63 drives the driven gear 64 to rotate. The rotation of the driven gear 64 drives the rotating shaft 52 to rotate. The rotation of the rotating shaft 52 drives the round sleeve 53 to rotate. The rotation of the round sleeve 53 drives the fan blade 54 to rotate. The fan blade 54 rotates to blow air towards the circuit board. At the same time, the heating wire 55 generates heat and transfers the heat to the air, thereby thermally drying the screen-printed circuit board to accelerate the drying and forming of the ink. When it is necessary to disassemble, clean, and maintain the lower support plate 4 and the thermal drying assembly 5, the clamping rod 74 can be pulled outwards from the socket 73 so that the clamping rod 74 is no longer engaged in the slot 72 on the disassembly and assembly rod 71, and then directly pull out the thermal drying assembly 5 and the drive mechanism 6 upwards to complete the disassembly of the thermal drying assembly 5 and the drive mechanism 6. When it is necessary to install the thermal drying assembly 5 and the drive mechanism 6 on the lower support plate 4, directly insert the disassembly and assembly rod 71 into the socket 73, and the spring 75 will drive the clamping rod 74 to engage in the slot 72, fixing the thermal drying assembly 5 and the drive mechanism 6 on the lower support plate 4, thus completing the installation of the thermal drying assembly 5 and the drive mechanism 6 on the lower support plate 4, facilitating the disassembly, assembly, maintenance, and cleaning of the thermal drying assembly 5 and the drive mechanism 6.

[0043] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A circuit board surface screen printing device, comprising: Circuit board screen printing equipment body (1); A flipping mechanism (2) is arranged on the circuit board screen printing device body (1); A screen printing gun (3) is arranged on the flipping mechanism (2); A lower support plate (4) is arranged on the turning mechanism (2) and is circular; A heat drying component (5) is arranged on the lower support plate (4) and is used for heat drying the surface of the circuit board after silk screen printing; A driving mechanism (6) is arranged on the lower support plate (4) and the heat drying component (5), and is used to drive the heat drying component (5) to operate to heat the circuit board; The disassembly and assembly mechanism (7) is arranged on the lower support plate (4) and the driving mechanism (6) and is used for disassembly and assembly of the heat drying component (5) and the driving mechanism (6).

2. A circuit board surface screen printing device according to claim 1, characterized in that: The heat drying component (5) comprises a shell (51) arranged on the lower support plate (4), a rotating shaft (52) is rotatably arranged in the shell (51), a round sleeve (53) is installed at the bottom end of the rotating shaft (52), a fan blade (54) is installed on the round sleeve (53), and a heating wire (55) is installed in the shell (51).

3. A circuit board surface screen printing device according to claim 2, characterized in that: The heat drying assembly (5) further comprises a cover plate (56) mounted on the outer shell (51), wherein the cover plate (56) is sleeved on the rotating shaft (52), and a lower limit ring (57) is mounted on the rotating shaft (52), wherein the lower limit ring (57) is provided in a group, and the group of lower limit rings (57) are respectively distributed on the upper and lower sides of the cover plate (56).

4. A circuit board surface screen printing device according to claim 3, characterized in that: The driving mechanism (6) comprises an upper supporting plate (61) arranged above the lower supporting plate (4); a driving shaft (62) is rotatably mounted in the upper supporting plate (61); a gear ring (63) is mounted on the driving shaft (62); a driven gear (64) is mounted on the rotating shaft (52); the driven gear (64) and the gear ring (63) are meshed; a driving motor (65) is mounted on the top of the upper supporting plate (61); the driving shaft (62) is mounted on the output end of the driving motor (65); an upper limit ring (66) is mounted on the rotating shaft (52); and the upper limit ring (66) is respectively distributed on the upper and lower sides of the upper supporting plate (61).

5. A circuit board surface screen printing device according to claim 4, characterized in that: The disassembly mechanism (7) comprises a disassembly rod (71) mounted on the bottom of the upper support plate (61), a card slot (72) is provided on the disassembly rod (71), a socket (73) is mounted on the lower support plate (4), the disassembly rod (71) is plugged into the socket (73), a card rod (74) is slidably mounted on the socket (73), and the card rod (74) is carded into the card slot (72).

6. A circuit board surface screen printing device according to claim 5, characterized in that: The disassembly and assembly mechanism (7) further comprises a spring (75) mounted on the socket (73), and the other end of the spring (75) is mounted on the clamping rod (74).

7. A circuit board surface screen printing device according to claim 5, characterized in that: The disassembly and assembly mechanism (7) further comprises a guide rod (76) mounted on the bottom of the upper support plate (61); a guide seat (77) is mounted on the lower support plate (4); and the guide rod (76) is inserted into the guide seat (77).

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