CN218550289U

CN218550289U - Circuit board printing device for processing LED display screen

Info

Publication number: CN218550289U
Application number: CN202222465176.7U
Authority: CN
Inventors: 王海平; 刘文竞
Original assignee: Beijing Jinzheng Energy Technology Co ltd
Current assignee: Beijing Jinzheng Energy Technology Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-02-28
Anticipated expiration: 2032-09-16

Abstract

The utility model relates to the technical field of circuit board printing, in particular to a circuit board printing device for processing an LED display screen, wherein a scraper is arranged at the output end of a printing mechanism, and a drying box is arranged at the top end of a workbench and at the discharge end of the printing box; the feed inlet and the discharge outlet of the drying box are both provided with limiting door frames, the interior of each limiting door frame is connected with a door body in a sliding manner, and the top ends of the door bodies extend to the top ends of the limiting door frames and are externally connected with electric telescopic rods; the inside of stoving case is provided with stoving mechanism, and stoving mechanism includes screw rod, electric fan and heating wire, and the screw rod passes through the actuating mechanism drive, and the below of electric fan is and be located and install a plurality of groups heating wire on the lateral wall of stoving case. The utility model discloses be convenient for dry the printing ink on the circuit board after the printing, subsequent processing of being convenient for improves work efficiency to can absorb the utilization with the waste heat that stoving mechanism produced, resources are saved further promotes the stoving effect.

Description

Circuit board printing device for processing LED display screen

Technical Field

The utility model relates to a circuit board printing technology field specifically is a circuit board printing device is used in LED display screen processing.

Background

The LED display screen is a flat panel display, which is composed of small LED module panels and is used for displaying various information such as characters, images, videos and the like, the circuit board is an important component of the LED display screen, circuit printing needs to be carried out on the circuit board in the processing process of the circuit board, the printing process of the circuit board is complex, several main processes such as cleaning, printing and the like are usually carried out, all the steps are mutually independent, and therefore the circuit board needs to be processed by various different devices. The existing printing mode of the circuit board for processing the LED display screen is generally screen printing, and comprises a screen, a printing mechanism, a conveying mechanism, a scraper plate and the like. After the circuit board is printed, the circuit board is usually taken out of the device, and the circuit board is uniformly and naturally dried and then can be sent into equipment of the next set of working procedure, so that the occupied time of natural drying is long, and the processing efficiency of the circuit board is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is to the problem that exists among the background art, provides a circuit board printing device is used in LED display screen processing.

The technical scheme of the utility model: a circuit board printing device for processing an LED display screen comprises a printing box, wherein a printing mechanism is arranged in the printing box, a scraper is installed at the output end of the printing mechanism, a workbench is connected to the bottom end of the printing box, a conveying mechanism is arranged at the top end of the workbench, and a drying box is arranged at the top end of the workbench and is positioned at the discharge end of the printing box;

the feeding port and the discharging port of the drying box are both provided with limiting door frames, the interior of each limiting door frame is connected with a door body in a sliding mode, the bottom end of each door body is infinitely close to the top end of the conveying mechanism, the top end of each door body extends to the top end of the corresponding limiting door frame, and an electric telescopic rod is connected to the exterior of the top end of the corresponding limiting door frame and installed at the top end of the side wall of the drying box;

the inside of stoving case is provided with stoving mechanism, and stoving mechanism includes screw rod, electric fan and heating wire, and the screw rod rotates the inner wall upper end of connecting the stoving case, and the screw rod passes through the actuating mechanism drive, and screw rod outer wall thread bush is equipped with the slide, and slide sliding connection stoving roof end, slide bottom connection electric fan, the below of electric fan and be located the lateral wall of stoving case and install a plurality of groups heating wire.

Preferably, the conveying mechanism can be a conveying belt mechanism, a placing table is arranged on the conveying belt mechanism, and the circuit board is placed on the placing table.

Preferably, the driving mechanism is composed of a servo motor and a belt transmission mechanism, the servo motor is arranged at the top end of the drying box, one end of the belt transmission mechanism is connected with the output end of the servo motor, and the other end of the belt transmission mechanism is connected with the screw rod.

Preferably, the top of stoving case is provided with spacing slide rail, and spacing slide rail sliding connection slide top.

Preferably, a protective net is arranged on the inner wall of the drying box and below the heating wire.

Preferably, the drying device further comprises a pre-drying mechanism, the pre-drying mechanism comprises an induced air pipe, one end of the induced air pipe is installed on the drying box, the other end of the induced air pipe is installed on the printing box, an induced draft fan is arranged on the induced air pipe and at a position close to the drying box, a heat-resistant hose is installed at an air outlet end of the induced air pipe, a nozzle is installed at the other end of the heat-resistant hose, and the nozzle is installed on a mounting seat of the scraper through a connecting piece.

Preferably, the induced air pipe is arranged at one end inside the drying box and provided with an induced air hopper.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has: the utility model can transmit the circuit board between the printed box and the drying box through the transmission mechanism; the drying mechanism is convenient for blowing hot air flow to the circuit board quickly, so that printed ink is dried quickly, and the arrangement of the electric telescopic rod, the door body and the limiting door frame avoids large heat consumption of the drying mechanism; the waste heat generated by the drying mechanism in the drying box is absorbed and utilized by the pre-drying mechanism and is transferred to the printing box to move simultaneously with the scraper on the printing mechanism, so that the printed part can be pre-dried, preparation is made for the subsequent drying mechanism, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the knot printing box of the present invention;

FIG. 3 is a schematic view of the internal structure of the drying box of the present invention;

fig. 4 is the schematic view of the connection mode between the door body and the drying box of the present invention.

Reference numerals: 1. a work table; 2. a transport mechanism; 3. a printing box; 301. a printing mechanism; 302. a squeegee; 4. a drying box; 401. limiting the doorframe; 402. a door body; 403. an electric telescopic rod; 404. a protective net; 5. an electric heating wire; 6. a screw; 601. a slide base; 602. an electric fan; 7. an induced draft pipe; 701. an induced draft fan; 702. a heat-resistant hose; 703. and (4) a nozzle.

Detailed Description

Example one

As shown in fig. 1, fig. 2 and fig. 4, the circuit board printing device for processing LED display screen provided by the present invention comprises a printing box 3, a printing mechanism 301 is disposed inside the printing box 3, and a scraper 302 is mounted at an output end of the printing mechanism 301, wherein a working table 1 is connected to a bottom end of the printing box 3, a conveying mechanism 2 is disposed at a top end of the working table 1, and a drying box 4 is disposed at a top end of the working table 1 and a discharge end of the printing box 3;

further, the conveying mechanism 2 can be a conveying belt mechanism, a placing table is arranged on the conveying belt mechanism, a circuit board is placed on the placing table, the circuit board is placed on the placing table, then the conveying belt mechanism is started to work through a controller, the placing table loaded with the circuit board can be conveyed towards the inside of the printed box 3, then the placing table moves towards the inside of the drying box 4, finally the circuit board is conveyed to the outside of the drying box 4, the circuit board can be taken down, and then the conveying belt mechanism is controlled by the controller to move reversely to convey the placing table to an initial position for new circuit board transportation;

as shown in fig. 1, 3 and 4, a limiting door frame 401 is installed at a feeding port and a discharging port of the drying box 4, a door body 402 is slidably connected inside the limiting door frame 401, the bottom end of the door body 402 is infinitely close to the top end of the conveying mechanism 2, an electric telescopic rod 403 is connected to the top end of the door body 402, which extends to the top end of the limiting door frame 401, and the electric telescopic rod 403 is installed at the top end of the side wall of the drying box 4;

as shown in fig. 3, a drying mechanism is arranged inside the drying box 4, the drying mechanism includes a screw 6, an electric fan 602 and heating wires 5, the screw 6 is rotatably connected to the upper end of the inner wall of the drying box 4, the screw 6 is driven by a driving mechanism, a sliding seat 601 is sleeved on the outer wall of the screw 6 in a threaded manner, the sliding seat 601 is slidably connected to the top end of the drying box 4, the bottom end of the sliding seat 601 is connected to the electric fan 602, and a plurality of groups of heating wires 5 are arranged below the electric fan 602 and on the side wall of the drying box 4.

Furthermore, the driving mechanism consists of a servo motor and a belt transmission mechanism, the servo motor is arranged at the top end of the drying box 4, one end of the belt transmission mechanism is connected with the output end of the servo motor, and the other end of the belt transmission mechanism is connected with the screw rod 6; the servo motor is started to work through the controller, and the screw rod 6 is driven to rotate through the belt transmission mechanism; the top end of the drying box 4 is provided with a limiting slide rail which is connected with the top end of the slide base 601 in a sliding manner, so that the slide base 601 can move in a left-right reciprocating manner stably in a balanced manner under the driving of the screw 6; a protective net 404 is arranged on the inner wall of the drying box 4 and below the heating wire 5, so that the hands of a worker are prevented from being scalded when the worker takes out the circuit board.

In this embodiment, the circuit board is placed at the start end of the conveying mechanism 2, the conveying mechanism 2 is started by the controller to convey the circuit board, the conveying mechanism 2 is suspended when the circuit board reaches the inside of the printed box 3, the controller starts the printing mechanism 301 to drive the scraper 302 to print the circuit board, after printing is completed, the conveying mechanism 2 continues to transport the circuit board towards the inside of the drying box 4, at this time, the controller starts the electric telescopic rod 403 to slide the door body 402 downwards along the limiting door frame 401 until the bottom end of the door body 402 is infinitely close to the top end of the conveying mechanism 2, the protective net 404 is started by the controller, the driving mechanism drives the screw 6 to rotate at the same time, the sliding seat 601 is driven to reciprocate left and right, the electric fan 602 reciprocates left and right and blows heat at an appropriate temperature generated by the electric heating wire 5 to the circuit board downwards uniformly and quickly, so that ink on the circuit board is dried, the limiting door frame 401 and the door body 402 are arranged to prevent a large amount of heat inside the drying box 4 from being dissipated, after drying is completed, the door body 402 is restored to the initial position, the conveying mechanism 2 is restarted to move the circuit board from the drying box 4, and the circuit board is removed from the drying box, the door frame 403, and the circuit board is closed by the residual heat of the electric telescopic rod 401.

Example two

As shown in fig. 1 to 3, the utility model provides a circuit board printing device for processing of LED display screen, compare in embodiment one, still include the stoving mechanism, the stoving mechanism includes induced duct 7, the one end of induced duct 7 is installed on stoving case 4, the other end of induced duct 7 is installed on printing case 3, induced duct 7 is last and be close to the position of stoving case 4 and be provided with draught fan 701, the air-out end of induced duct 7 is installed heat-resisting hose 702, nozzle 703 is installed to the other end of heat-resisting hose 702, nozzle 703 is installed on the mount pad of scraper blade 302 through the connecting piece;

further, an induced draft hopper is installed at one end of the induced draft pipe 7, which is located inside the drying box 4, so that hot air can be sucked into the induced draft pipe 7 through the induced draft fan 701.

In this embodiment, when the scraper 302 applies the ink in the printing mechanism to the circuit board, the induced draft fan 701 may be started by the controller, the residual heat inside the drying box 4 may be conveyed to the nozzle 703 through the induced draft pipe 7, and reaches the nozzle 703 through the heat-resistant hose 702 and is ejected, because the nozzle 703 is installed on the installation seat of the scraper 302, the nozzle 703 may move synchronously with the scraper 302, and the hot air flow is ejected through the nozzle 703 following the scraper 302, so that the printed portion may be immediately pre-dried by the hot air flow.

The working principle is as follows: the circuit board printing box 3 and the drying box 4 can be conveyed by the conveying mechanism 2; the drying mechanism is convenient for blowing hot air flow to the circuit board quickly, so that printed ink is dried quickly, and the arrangement of the electric telescopic rod 403, the door body 402 and the limit door frame 401 avoids large heat consumption of the drying mechanism; the waste heat generated by the drying mechanism in the drying box 4 is absorbed and utilized by the pre-drying mechanism and is transferred to the printing box 3 to move simultaneously with the scraper 302 on the printing mechanism 301, so that the printed part can be pre-dried, preparation is made for the subsequent drying mechanism, and the working efficiency is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A circuit board printing device for processing an LED display screen comprises a printing box (3), wherein a printing mechanism (301) is arranged inside the printing box (3), and a scraper (302) is installed at the output end of the printing mechanism (301), and is characterized in that the bottom end of the printing box (3) is connected with a workbench (1), a conveying mechanism (2) is arranged at the top end of the workbench (1), and a drying box (4) is arranged at the top end of the workbench (1) and at the discharge end of the printing box (3);

the feeding port and the discharging port of the drying box (4) are both provided with a limiting door frame (401), a door body (402) is connected inside the limiting door frame (401) in a sliding mode, the bottom end of the door body (402) is infinitely close to the top end of the conveying mechanism (2), the top end of the door body (402) extends to the top end of the limiting door frame (401), an electric telescopic rod (403) is connected to the outside of the top end of the limiting door frame (401), and the electric telescopic rod (403) is installed at the top end of the side wall of the drying box (4);

the inside of stoving case (4) is provided with drying mechanism, drying mechanism includes screw rod (6), electric fan (602) and heating wire (5), the inner wall upper end of stoving case (4) is connected in screw rod (6) rotation, screw rod (6) are through the actuating mechanism drive, screw rod (6) outer wall thread bush is equipped with slide (601), slide (601) sliding connection stoving case (4) top, electric fan (602) are connected to slide (601) bottom, the below of electric fan (602) is and be located and install a plurality of groups heating wire (5) on the lateral wall of stoving case (4).

2. The device for printing the circuit board for processing the LED display screen according to claim 1, wherein the conveying mechanism (2) is a conveyor belt mechanism, the conveyor belt mechanism is provided with a placing table, and the circuit board is placed on the placing table.

3. The printing device of the circuit board for processing the LED display screen according to claim 1, wherein the driving mechanism is composed of a servo motor and a belt transmission mechanism, the servo motor is arranged at the top end of the drying box (4), one end of the belt transmission mechanism is connected with the output end of the servo motor, and the other end of the belt transmission mechanism is connected with the screw rod (6).

4. The printing device for the circuit board for processing the LED display screen as claimed in claim 1, wherein a limiting slide rail is arranged at the top end of the drying box (4), and the limiting slide rail is slidably connected with the top end of the slide carriage (601).

5. The printing device of the circuit board for processing the LED display screen according to claim 1, wherein a protective screen (404) is arranged on the inner wall of the drying box (4) and below the heating wires (5).

6. The printing device of the circuit board for processing the LED display screen according to claim 1, further comprising a pre-drying mechanism, wherein the pre-drying mechanism comprises an induced air pipe (7), one end of the induced air pipe (7) is installed on the drying box (4), the other end of the induced air pipe (7) is installed on the printing box (3), an induced draft fan (701) is arranged on the induced air pipe (7) and at a position close to the drying box (4), a heat-resistant hose (702) is installed at an air outlet end of the induced air pipe (7), a nozzle (703) is installed at the other end of the heat-resistant hose (702), and the nozzle (703) is installed on a mounting seat of the scraper (302) through a connecting piece.

7. The printing device for the circuit board for processing the LED display screen according to claim 6, wherein an air draft hopper is installed at one end of the air draft pipe (7) positioned inside the drying box (4).