Circuit board screen printing equipment

Abstract

The utility model relates to the field of circuit board processing, in particular to circuit board screen printing equipment which comprises a base, a supporting frame is fixedly installed at the top of the base, a placing table is slidably connected to the position, beside the supporting frame, of the base through a sliding rail, and an installation frame is slidably connected to the side face of the supporting frame through a driving piece. The mounting frame is located above the placing table and is provided with an ink scraping piece through a movable block; wherein the mounting frame is provided with a driving assembly used for driving the movable block to move, the top of the placing table is provided with an adjusting assembly, and the adjusting assembly is used for adjusting the angle of the ink scraping piece. In the screen printing process, the doctor blade can be automatically adjusted to conform to the sliding angle during reciprocating movement through the adjusting assembly, in this way, a silk plate can be prevented from being scratched, ink can be scraped to be flat, screen printing is facilitated, and practicability is high.

Description

Technical Field

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

[0002] Circuit board screen printing equipment is used to print logos, text, graphics and other information on circuit boards. It usually uses screen printing technology to print ink onto the surface of the circuit board through the screen to achieve the purpose of identification and decoration. These logos can include component locations, polarity marks, company logos, etc., which help production and maintenance personnel identify and operate circuit boards.

[0003] In order to facilitate the processing of circuit boards, it is necessary to use a circuit board screen printing device to mark information on them. For example, the prior art Chinese patent announcement number "CN217598085U" discloses a circuit board screen printing device, including a frame, a screen printing screen and a scraper mechanism, the frame is provided with a placement plate for placing circuit boards, the screen printing screen is arranged on the frame and located above the placement plate, the screen printing screen and the placement plate can move relative to each other vertically, the scraper mechanism is arranged on the frame and located above the screen printing screen, the scraper mechanism can move and adjust along a first horizontal direction, the scraper mechanism is provided with a scraper that can be raised and lowered and can be rotated and adjusted, the scraper extends along a second horizontal direction perpendicular to the first horizontal direction, and the rotation axis of the scraper is parallel to the second horizontal direction. According to the circuit board screen printing device of the utility model, the structure is simpler and the operation is more convenient.

[0004] Most circuit board screen printing equipment uses a scraper for screen printing. However, in actual operation, considering that the traditional scraper needs to use a driving cylinder to change the direction of the scraper blade when scraping ink back and forth, so that it will not scratch the screen when moving and can also scrape the ink flat. However, considering that operating through a driving cylinder will increase production costs on the one hand, and is inconvenient for maintenance and replacement on the other hand, it has low practicality. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art that the use of a driving cylinder increases production costs on the one hand and is inconvenient for replacement and maintenance on the other hand, and proposes a circuit board screen printing device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A circuit board screen printing device is designed, comprising a base, a support frame is fixedly installed on the top of the base, and a placing table is slidably connected to the side of the support frame through a slide rail, a mounting frame is slidably connected to the side of the support frame through a driving member, and the mounting frame is located above the placing table and is provided with an ink scraper through a movable block;

[0008] Wherein, a driving component for driving the movable block to move is disposed on the mounting frame, and an adjusting component is disposed on the top of the placing table, and the adjusting component is used to adjust the angle of the ink scraping member.

[0009] Furthermore, the driving member includes a first cylinder fixedly mounted on the top of the support frame, the axial end of the first cylinder passes through the support frame and is fixedly connected to the top of the mounting frame, a guide block is fixedly mounted on the side of the support frame, and the side of the mounting frame is slidably connected to the guide block.

[0010] Furthermore, the driving assembly includes a motor fixedly mounted on the side of the mounting frame, a round rod fixedly mounted inside the mounting frame and a screw rod rotatably connected, the shaft end of the motor passes through the mounting frame and is fixedly connected to one end of the screw rod, the movable block is slidably connected to the round rod and is threadedly connected to the screw rod.

[0011] Furthermore, a clamping plate is fixedly installed on the side of the mounting frame, a wire plate is clamped between the clamping plates, a second cylinder is fixedly installed on the side of the movable block above the wire plate, and the ink scraper is fixedly installed on the axial end of the second cylinder.

[0012] Furthermore, the ink scraper component includes a horizontal plate fixedly installed on the end of the second cylinder, the bottom of the horizontal plate is rotatably connected to the ink scraper through a rotating shaft, the outer periphery of the rotating shaft is provided with a first torsion spring, the two ends of the first torsion spring respectively abut against the side surfaces of the horizontal plate and the ink scraper, and one end of the rotating shaft passes through the horizontal plate and is fixedly installed with a resist plate.

[0013] Furthermore, the adjustment assembly includes a straight rod fixedly mounted on one side of the top of the splint, the top of the straight rod is provided with a mounting groove, a push rod is rotatably connected in the mounting groove and a limiting portion is provided on one side of the push rod, one end of the push rod can abut against the limiting portion, and the other end can abut against the push plate, a second torsion spring is sleeved on the rotating axis of the push rod, and both ends of the second torsion spring respectively abut against the side of the push rod with respect to the mounting groove.

[0014] The utility model proposes a circuit board screen printing device, which has the beneficial effect that the utility model can drive the ink scraper to move back and forth to cooperate with the screen plate to screen print the circuit board, and during the screen printing process, the ink scraper can automatically adjust to conform to the sliding angle when moving back and forth by adjusting the component, which can not only prevent the screen plate from being scratched, but also can scrape the ink flat for easy screen printing, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the ink scraper of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the adjustment component of the utility model.

[0020] In the figure: 1. base; 2. support frame; 3. slide rail; 4. placement table; 5. driving member; 51. first cylinder; 52. guide block; 6. mounting frame; 61. clamping plate; 62. wire plate; 7. movable block; 71. second cylinder; 8. scraper; 81. cross plate; 82. rotating shaft; 83. scraper; 84. first torsion spring; 85. abutment plate; 9. driving assembly; 91. motor; 92. round rod; 93. screw rod; 10. adjusting assembly; 101. straight rod; 102. mounting groove; 103. abutment rod; 104. limiting part; 105. second torsion spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 A circuit board screen printing device comprises a base 1, a support frame 2 is fixedly installed on the top of the base 1, and a placement table 4 is slidably connected to the side of the support frame 2 through a slide rail 3, and a mounting frame 6 is slidably connected to the side of the support frame 2 through a driving member 5, and the mounting frame 6 is located above the placement table 4 and is provided with an ink scraper 8 through a movable block 7. The placement table 4 is used to place circuit boards, and the circuit boards are brought to the bottom of the silk plate 62 by pushing the placement table 4 for easy silk printing. The ink scraper 8 is used to scrape the ink flat so that the ink can be screen-printed onto the circuit board through the silk plate 62.

[0023] The mounting frame 6 is provided with a driving component 9 for driving the movable block 7 to move, and the top of the placing table 4 is provided with an adjusting component 10 for adjusting the angle of the ink scraping member 8 .

[0024] In detail, ink is poured into one end of the top of the screen plate 62, and the ink is scraped flat by pushing the scraper 83 so that the ink passes through the screen plate 62 to print the circuit board. After the scraper 83 pushes the ink from one end of the screen plate 62 to the other end for screen printing, the remaining small amount of ink needs to be pushed back to its original position. This prevents the ink from contaminating the screen plate 62 and allows the screen plate 62 to be re-spread with ink. When the scraper 83 returns, the inclination angle of the scraper 83 needs to be adjusted so that the angle of the blade can conform to and fit the screen plate 62.

[0025] Furthermore, the driving member 5 includes a first cylinder 51 fixedly installed on the top of the support frame 2, the axial end of the first cylinder 51 passes through the support frame 2 and is fixedly connected to the top of the mounting frame 6, a guide block 52 is fixedly installed on the side of the support frame 2, and the side of the mounting frame 6 is slidably connected to the guide block 52. The mounting frame 6 is driven to rise and fall by the first cylinder 51, so that the screen plate 62 can follow the rise and fall, thereby freeing up space for replacing the circuit board for the next screen printing.

[0026] Furthermore, the driving assembly 9 includes a motor 91 fixedly mounted on the side of the mounting frame 6, a round rod 92 and a screw rod 93 are fixedly mounted inside the mounting frame 6, the shaft end of the motor 91 passes through the mounting frame 6 and is fixedly connected to one end of the screw rod 93, the movable block 7 is slidably connected to the round rod 92 and is threadedly connected to the screw rod 93, the motor 91 drives the screw rod 93 to cooperate with the round rod 92 to drive the movable block 7 to reciprocate, thereby driving the ink scraper 83 to move for ink scraping and silk screen printing.

[0027] In more detail, a clamping plate 61 is fixedly installed on the side of the mounting frame 6, and a wire plate 62 is clamped between the clamping plates 61. A second cylinder 71 is fixedly installed on the side of the movable block 7 above the wire plate 62, and the ink scraper 8 is fixedly installed on the axial end of the second cylinder 71. The clamping plate 61 and the wire plate 62 are detachably connected, and the second cylinder 71 is used to drive the ink scraper 83 to rise and fall, so that it is convenient to adjust the inclination angle of the ink scraper 83 through the adjustment component 10.

[0028] In general, the ink scraper 8 includes a transverse plate 81 fixedly mounted on the end of the second cylinder 71, the bottom of the transverse plate 81 is rotatably connected to a scraper blade 83 via a rotating shaft 82, a first torsion spring 84 is sleeved on the outer periphery of the rotating shaft 82, the two ends of the first torsion spring 84 respectively abut against the side surfaces of the transverse plate 81 and the scraper blade 83, and one end of the rotating shaft 82 passes through the transverse plate 81 and is fixedly mounted with a stop plate 85.

[0029] It is worth mentioning that the bottom of the scraper 83 is made of rubber or silicone material. Under the action of the first torsion spring 84, the scraper 83 is tilted at an acute angle to the wire plate 62 in a normal state, avoiding the inconvenience of scraping ink when it is vertically set to the wire plate 62.

[0030] Finally, the adjustment assembly 10 includes a straight rod 101 fixedly mounted on one side of the top of the splint 61, a mounting groove 102 being provided on the top of the straight rod 101, a push rod 103 being rotatably connected in the mounting groove 102 and a limiting portion 104 being provided on one side of the push rod 103, one end of the push rod 103 being able to abut against the limiting portion 104 and the other end being able to abut against the push plate 85, a second torsion spring 105 being sleeved on the rotating axis of the push rod 103, and both ends of the second torsion spring 105 respectively abut against the side surfaces of the push rod 103 in the mounting groove 102.

[0031] In more detail, the resisting rod 103 is rotatably connected in the mounting groove 102. Due to the limiting portion 104, it can only rotate toward the side where the scraper 83 moves forward. In addition, after being resisted and rotated under the action of the second torsion spring 105, it can also return to its original position and be resisted by the limiting portion 104.

[0032] The specific operation is that when the scraper 83 moves to scrape ink, the push plate 85 abuts against the push rod 103, and the push rod 103 is not affected by the limiting portion 104 and can rotate to avoid the push plate 85, and the scraper 83 will not rotate. After the ink scraping is completed, the second cylinder 71 drives the scraper 83 to rise, and then when the scraper 83 moves back to its original position, the push plate 85 abuts against the push rod 103 again, and this time the push rod 103 cannot rotate due to the abutment with the limiting portion 104, and then the scraper 83 will rotate when moving due to the abutment of the push plate 85. After the rotation, the second cylinder 71 descends to make the scraper 83 press against the wire plate 62 and move, thereby achieving the effect of adjusting the inclination angle.

[0033] Working method: When working, place the circuit board on the placement table 4 and push the placement table 4 under the screen plate 62, then the motor 51 drives the screen plate 62 to move downward and make the screen plate 62 fit the circuit board, then the motor 91 drives the screw rod 93 to cooperate with the round rod 92 to drive the ink scraper 83 to move back and forth for screen printing;

[0034] During the silk-screen printing process, the second cylinder 71 drives the scraper 83 to move downward so that it is in close contact with the silk plate 62, and ink is poured in to push the scraper 83. Then, when the scraper 83 returns, the second cylinder 71 drives it to rise upward. During the movement, the abutment plate 85 is affected by the abutment of the abutment rod 103, causing the scraper 83 to rotate. Then the second cylinder 71 quickly descends to make the rotated scraper 83 fit into the silk plate 62, and finally returns to its original position. The second cylinder 71 rises again, and the scraper 83 rotates back to its original position under the action of the first torsion spring 84.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board screen printing device, comprising a base (1), characterized in that: A support frame (2) is fixedly mounted on the top of the base (1), and a placement table (4) is slidably connected to the support frame (2) via a slide rail (3). A mounting frame (6) is slidably connected to the side of the support frame (2) via a driving member (5). The mounting frame (6) is located above the placement table (4) and is provided with an ink scraping member (8) via a movable block (7); Wherein, a driving component (9) for driving the movable block (7) to move is provided on the mounting frame (6), and an adjusting component (10) is provided on the top of the placement table (4), and the adjusting component (10) is used to adjust the angle of the ink scraping member (8).

2. A circuit board screen printing device according to claim 1, characterized in that: The driving member (5) comprises a first cylinder (51) fixedly mounted on the top of the support frame (2); an axial end of the first cylinder (51) passes through the support frame (2) and is fixedly connected to the top of the mounting frame (6); a guide block (52) is fixedly mounted on the side of the support frame (2); and a side of the mounting frame (6) is slidably connected to the guide block (52).

3. A circuit board screen printing device according to claim 1, characterized in that: The driving assembly (9) comprises a motor (91) fixedly mounted on a side of the mounting frame (6); a round rod (92) is fixedly mounted inside the mounting frame (6) and is rotatably connected to a screw rod (93); an axial end of the motor (91) passes through the mounting frame (6) and is fixedly connected to one end of the screw rod (93); the movable block (7) is slidably connected to the round rod (92) and is threadedly connected to the screw rod (93).

4. A circuit board screen printing device according to claim 1, characterized in that: A clamping plate (61) is fixedly mounted on the side of the mounting frame (6), a wire plate (62) is clamped between the clamping plates (61), a second cylinder (71) is fixedly mounted on the side of the movable block (7) above the wire plate (62), and the ink scraping member (8) is fixedly mounted on the shaft end of the second cylinder (71).

5. A circuit board screen printing device according to claim 4, characterized in that: The ink scraping member (8) includes a transverse plate (81) fixedly mounted on the end of the second cylinder (71); the bottom of the transverse plate (81) is rotatably connected to an ink scraper (83) via a rotating shaft (82); a first torsion spring (84) is sleeved on the outer periphery of the rotating shaft (82); the two ends of the first torsion spring (84) respectively abut against the side surfaces of the transverse plate (81) and the ink scraper (83); one end of the rotating shaft (82) passes through the transverse plate (81) and is fixedly mounted with a resist plate (85).

6. A circuit board screen printing device according to claim 5, characterized in that: The adjustment assembly (10) includes a straight rod (101) fixedly mounted on one side of the top of the clamping plate (61), a mounting groove (102) being provided on the top of the straight rod (101), a push rod (103) being rotatably connected in the mounting groove (102) and a limiting portion (104) being provided on one side of the push rod (103), one end of the push rod (103) being able to abut against the limiting portion (104) and the other end being able to abut against the push plate (85), a second torsion spring (105) being sleeved on the rotation axis of the push rod (103), the two ends of the second torsion spring (105) respectively abutting against the side of the push rod (103) on the mounting groove (102).

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