Vertical printing screen distance keeping device

Abstract

The utility model discloses a vertical printing screen distance keeping device which comprises a bottom plate, the top of the bottom plate is fixedly connected with two rails, a mounting plate is arranged above the bottom plate, the bottom of the mounting plate is in sliding connection with the two rails respectively, the top of the mounting plate is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with the bottom of the mounting plate. A first motor is fixedly connected to the top of the bottom plate, an output shaft of the first motor is fixedly connected with a lead screw, one end of the back face of the lead screw is rotationally connected with the bottom plate, the bottom of the mounting plate is arranged on the lead screw in a sleeving mode and is in threaded connection with the lead screw, and lifting strips are slidably connected to the front face and the back face of the mounting frame. According to the utility model, in a vertical printing system, when two feeding frames (two PCBs) exist, the distances between the screen printing plate and the two feeding frames are ensured to be consistent, that is, the distances between the screen printing plate and the PCBs are ensured to be consistent, and the same printing ink thickness is ensured to be printed on two different PCBs.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB printing device technical field, more specifically, relate to a vertical printing net distance keeping device. BACKGROUND

[0002] PCB solder mask production adopts horizontal printing mode production, that is, the board is placed on the water platform surface, and the squeegee assembly can only print one side of the board at a time, the efficiency is low, so the vertical printing device appears on the market, which can realize vertical placement of two PCBs, and one-time double-sided printing of one PCB can be realized, and the printing efficiency is effectively improved.

[0003] Due to the different positions of the vertically clamped PCBs, the distances between the PCBs and the screen and the squeegee are different when the different PCBs enter the printing mechanism, the screen must maintain the same distance with the PCB during printing, so as to ensure the same ink thickness, in order to ensure that the PCBs in different positions can be printed to the same thickness of ink when entering the printing mechanism. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model aims to provide a vertical printing net distance keeping device, which can keep the distance between the screen and the PCB consistent, so that different two PCBs can print the same ink thickness, and solve the background technical problems.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A vertical printing net distance keeping device, comprising a bottom plate, the top of the bottom plate is fixedly connected with two tracks, the top of the bottom plate is provided with a mounting plate, the bottom of the mounting plate is slidably connected with the two tracks respectively, the top of the mounting plate is fixedly connected with a mounting frame, the top of the bottom plate is fixedly connected with a motor one, the output shaft of the motor one is fixedly connected with a lead screw, the back surface one end of the lead screw is rotatably connected with the bottom plate, the bottom of the mounting plate is sleeved on the lead screw and is threadedly connected therewith, the front surface and the back surface of the mounting frame are slidably connected with lifting strips, the top of the mounting frame is provided with a driving mechanism for driving the lifting of four lifting strips, the top of each of the two lifting strips is fixedly connected with a printing machine, and the opposite side of each of the two printing machines is provided with a screen and a squeegee.

[0007] Further description of the above technical scheme:

[0008] The driving mechanism comprises a fixed plate, the bottom of the fixed plate is fixedly connected with a mounting frame, the bottom of the fixed plate is fixedly connected with a motor two, the output shaft of the motor two penetrates through the fixed plate and is fixedly connected with a driving wheel, the top of the mounting frame is inserted with four threaded rods rotationally connected therewith, the top of each of the four threaded rods is fixedly connected with a passive wheel, the driving wheel and the four passive wheels are transmissionally connected through a toothed belt, each of the four threaded rods is sleeved with a lifting plate threadedly connected therewith, each of the four lifting plates is sleeved on the mounting frame and is slidingly connected therewith, and the opposite sides of the two lifting strips are fixedly connected with the four lifting plates respectively.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] The present scheme ensures that the distance between the screen printing plate and the two feeding frames is consistent, that is, the distance between the screen printing plate and the PCB boards is consistent, and that the same ink thickness is printed on the two different PCB boards. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a perspective view of the utility model;

[0012] Figure 2 It is a perspective view of the utility model;

[0013] Figure 3 It is a perspective view of the utility model Figure 1 It is an enlarged view of part A in the utility model;

[0014] Figure 4 It is a top view of the mounting plate in the utility model;

[0015] Figure 5 It is a partial perspective view of the mounting frame in the utility model.

[0016] REFERENCE NUMERALS IN DRAWINGS:

[0017] 1, bottom plate; 2, track; 3, mounting plate; 4, mounting frame; 5, motor one; 6, screw rod; 7, lifting strip; 8, driving mechanism; 801, fixed plate; 802, motor two; 803, driving wheel; 804, threaded rod; 805, passive wheel; 806, lifting plate; 807, toothed belt; 9, printing machine; 10, screen printing plate; 11, squeegee. DETAILED DESCRIPTION

[0018] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments;

[0019] Please refer to Figures 1-5The utility model discloses a vertical printing net distance keeping device, including the bottom plate 1, the top fixed connection of bottom plate 1 has two tracks 2, the top of bottom plate 1 is provided with mounting plate 3, and the bottom of mounting plate 3 is slidably connected with two tracks 2 respectively, and the top fixed connection of mounting plate 3 has mounting bracket 4, and the top fixed connection of bottom plate 1 has motor no. 5, and the output shaft fixed connection of motor no. 5 has lead screw 6, and the back surface one end of lead screw 6 is rotatably connected with bottom plate 1, and the bottom of mounting plate 3 is set on lead screw 6 and is connected with its thread, and the front and back of mounting bracket 4 are slidably connected with lifting bar 7.

[0020] The top of mounting bracket 4 is provided with drive mechanism 8 of driving four lifting bars 7 to lift, and the top of two lifting bars 7 is fixedly connected with printing machine 9, and the opposite side of two printing machines 9 is equipped with screen plate 10 and scraper 11 respectively;Drive mechanism 8 includes fixed plate 801, and the bottom of fixed plate 801 is fixedly connected with mounting bracket 4, and the bottom fixed connection of fixed plate 801 has motor no. 802, and the output shaft of motor no. 802 penetrates fixed plate 801 and is fixedly connected with drive wheel 803.

[0021] The top of mounting bracket 4 is inserted with four thread rods 804 rotatably connected with it, and the top of four thread rods 804 is fixedly connected with passive wheel 805, and drive wheel 803 is transmissionally connected between four passive wheels 805 through toothed belt 807, and four thread rods 804 are all equipped with lifting plate 806 threadedly connected with them, and four lifting plates 806 are all set on mounting bracket 4 and are slidably connected with it, and the opposite side of two lifting bars 7 is fixedly connected with four lifting plates 806 respectively.

[0022] In the utility model, the left side of mounting bracket 4 is provided with two PCB boards clamped by clamping mechanism, and the two PCB boards are arranged front and back, when printing one of the PCB boards, first input one PCB board to the inner side of mounting bracket 4, at this time, the PCB board is located between two adjacent screen plates 10 and scrapers 11, at this time, the distance between the front and back of the PCB board and the screen plate 10 has deviation, the user can drive lead screw 6 to rotate by starting motor no. 5, because lead screw 6 is threadedly connected with mounting plate 3, so mounting plate 3 will move along track 2, the distance between screen plate 10 and scraper 11 and the PCB board will be changed in the process of moving, thereby realizing the effect of controlling the distance between the PCB board and screen plate 10, after adjusting the distance between the front and back of the PCB board and the screen plate 10 to be consistent, start motor no. 802 to drive drive wheel 803 to rotate, drive wheel 803 will then drive four passive wheels 805 to rotate through toothed belt 807, then four thread rods 804 will be driven, because thread rod 804 is threadedly connected with lifting plate 806, so four lifting plates 806 will move up and down along mounting bracket 4 after starting motor no. 802, in the process, lifting bar 7 will drive screen plate 10 and scraper 11 to move up and down through printing machine 9, thereby realizing double-sided printing of one PCB board.

[0023] Then the printed PCB board can be removed from the mounting frame 4, and another PCB board is moved into the mounting frame 4, at this time, the distance between the screen plate 10 and the front and back surfaces of the PCB board can be adjusted to the same distance by starting the motor 5, and then another PCB board can be printed, and the two screen plates 10 on the front and back surfaces of the PCB board can keep the same distance with any one PCB board.

[0024] Furthermore, the printing equipment can print the ink with uniform thickness from any position, and the practicability of the device is improved.

[0025] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A vertical printing web distance maintaining device comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected with two rails (2), the top of the bottom plate (1) is provided with a mounting plate (3), the bottom of the mounting plate (3) is slidably connected with two rails (2) respectively, the top of the mounting plate (3) is fixedly connected with a mounting frame (4), the top of the bottom plate (1) is fixedly connected with a motor (5), the output shaft of the motor (5) is fixedly connected with a lead screw (6), the back surface of the lead screw (6) is rotatably connected with the bottom plate (1), the bottom of the mounting plate (3) is sleeved on the lead screw (6) and is threadedly connected with the same, the front surface and the back surface of the mounting frame (4) are slidably connected with lifting bars (7), the top of the mounting frame (4) is provided with a drive mechanism (8) for driving four lifting bars (7) to lift, the top of two lifting bars (7) is fixedly connected with a printing machine (9), and the opposite side of two printing machines (9) is provided with a screen plate (10) and a scraper (11).

2. A vertical print web gap maintaining device according to claim 1, characterized in that The drive mechanism (8) comprises a fixed plate (801), the bottom of the fixed plate (801) is fixedly connected with the mounting frame (4), the bottom of the fixed plate (801) is fixedly connected with a motor (802), the output shaft of the motor (802) penetrates through the fixed plate (801) and is fixedly connected with a drive wheel (803), the top of the mounting frame (4) penetrates four threaded rods (804) rotatably connected with the same, the top of four threaded rods (804) is fixedly connected with a passive wheel (805), the drive wheel (803) and four passive wheels (805) are drivingly connected through a toothed belt (807), four threaded rods (804) are all sleeved with lifting plates (806) threadedly connected with the same, four lifting plates (806) are all sleeved on the mounting frame (4) and are slidably connected with the same, and the opposite sides of two lifting bars (7) are fixedly connected with four lifting plates (806) respectively.

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