CN215356592U

CN215356592U - Special reflow soldering machine of LED screen

Info

Publication number: CN215356592U
Application number: CN202121367862.XU
Authority: CN
Inventors: 孙东升
Original assignee: Dalian Yangguang Technology Co ltd
Current assignee: Dalian Yangguang Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-31
Anticipated expiration: 2031-06-18

Abstract

The utility model relates to the technical field of electric welding, in particular to a special reflow welding machine for an LED screen, which can clamp circuit boards with different sizes, can weld the upper surface and the lower surface of the circuit board simultaneously, and enables the circuit boards to be heated uniformly, thereby having good welding quality, convenient use, low limitation and high practicability; the bottom plate, the work box, two sets of heating rods, four slider of group, the lead screw, the drive shaft, the driven shaft, the telescopic link, two sets of grip block, two sets of screw rods and two sets of briquetting, work box fixed mounting is in the upper end of bottom plate, the inside of work box is provided with the heating chamber, the front end of work box is provided with gets and puts the mouth, the closing plate is installed in the outside of getting and putting the mouth through the pivot, two sets of slider of equal fixed mounting in both ends about two sets of heating rods, both ends about the work box heating chamber are all installed to four slider of group about, two sets of heating rods all are connected with external power source through the electric wire, two sets of heating rods are located the upper and lower two portions in work box heating chamber respectively.

Description

Special reflow soldering machine of LED screen

Technical Field

The utility model relates to the technical field of electric welding, in particular to a special reflow welding machine for an LED screen.

Background

The LED display screen is a flat panel display, is composed of small LED module panels, and is a device for displaying various information such as text, images, video, and the like. The LED display screen is internally provided with a large number of circuit boards, the circuit boards need to be welded with electrical elements on the circuit boards by using reflow soldering machines in the manufacturing process, the existing reflow soldering machines can only weld one side of the circuit boards at one time when the circuit boards are welded, the work efficiency is low, the circuit boards are heated unevenly everywhere, parts cannot be welded completely, the welding quality is poor, and the reliability and the practicability of the circuit boards are low due to the comprehensive effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the special reflow soldering machine for the LED screen, which can clamp circuit boards with different sizes, can simultaneously solder the upper surface and the lower surface of the circuit board, enables all parts of the circuit board to be uniformly heated, and has the advantages of good soldering quality, convenient use, low limitation and high practicability.

The utility model relates to a special reflow soldering machine for an LED screen, which comprises a bottom plate, a working box, two groups of heating rods, four groups of sliding blocks, a screw rod, a driving shaft, a driven shaft, a telescopic rod, two groups of clamping blocks, two groups of screw rods and two groups of pressing blocks, wherein the working box is fixedly arranged at the upper end of the bottom plate, the working box is internally provided with the heating cavity, the front end of the working box is provided with a taking and placing opening, a sealing plate is arranged at the outer side of the taking and placing opening through a rotating shaft, the left end and the right end of the two groups of heating rods are respectively and fixedly provided with the two groups of sliding blocks, the four groups of sliding blocks are respectively and vertically and slidably arranged at the left end and the right end of the heating cavity of the working box, the two groups of heating rods are respectively positioned at the upper part and the lower part of the heating cavity of the working box, the screw rod is rotatably arranged on the working box, the upper part and the lower part of the screw rod are respectively provided with external threads with opposite rotation directions, the two groups of the right sliding blocks are respectively and screwed with the upper part and the lower part of the screw rod, the drive shaft rotates and installs the left part at the work box, and the left end of drive shaft is connected with the output of motor, and motor fixed mounting is at the left end of work box, and the driven shaft rotates and installs the right part at the work box, and the right-hand member fixed mounting of telescopic link is at the left end of driven shaft, and two sets of grip blocks are fixed mounting respectively on drive shaft and telescopic link, and two sets of screw rods are the spiral shell dress respectively on the upper portion of two sets of grip blocks, and two sets of briquetting is fixed mounting respectively at the lower extreme of two sets of screw rods.

The special reflow soldering machine for the LED screen further comprises a plurality of groups of rolling shafts, a collecting plate, a handle and a cover plate, wherein the plurality of groups of rolling shafts are rotatably arranged at the lower part of the heating cavity of the working box, the collecting plate is arranged at the upper ends of the plurality of groups of rolling shafts, the handle is fixedly arranged at the left end of the collecting plate, a cleaning opening is formed in the left part of the working box, and the cover plate is arranged on the outer side of the cleaning opening through bolts.

The special reflow soldering machine for the LED screen further comprises a temperature sensor, a signal wire and a temperature display, wherein the temperature sensor is fixedly arranged in a heating cavity of the working box, the temperature display is fixedly arranged at the left end of the working box, and the temperature display is connected with the temperature sensor through the signal wire.

The special reflow soldering machine for the LED screen further comprises two groups of first rotating discs and second rotating discs, wherein the two groups of first rotating discs are fixedly arranged at the upper ends of the two groups of screw rods respectively, and the second rotating discs are fixedly arranged at the upper ends of the screw rods.

The special reflow soldering machine for the LED screen further comprises a suspension bracket and an air gun, wherein the suspension bracket is fixedly arranged at the right end of the working box, and the air gun is suspended on the suspension bracket.

The utility model discloses a special reflow soldering machine for an LED screen, which further comprises a lighting device, wherein the lighting device is fixedly arranged in a heating cavity of a working box.

The special reflow soldering machine for the LED screen further comprises a base, and the base is fixedly installed at the lower end of the bottom plate.

The utility model discloses a special reflow soldering machine for an LED screen, which further comprises a handle sleeve, wherein the handle sleeve is fixedly arranged on a second turntable.

Compared with the prior art, the utility model has the beneficial effects that: firstly, an electrical element coated with solder is pressed on a circuit board of an LED through a fixing device, then the circuit board pressed with the electrical element is placed on the lower part of a left clamping block, then a right clamping block is pulled, the right part of the circuit board is placed on the right clamping block, then two groups of screw rods are rotated, because the two groups of screw rods are respectively screwed with the two groups of clamping blocks, the two groups of pressing blocks can be pressed downwards by the two groups of screw rods until the two groups of pressing blocks press the circuit board on the two groups of clamping blocks, the two groups of screw rods are stopped rotating, then the screw rods are rotated, because the upper part and the lower part of the screw rods are respectively screwed with the two groups of sliding blocks on the right side, the two groups of sliding blocks are moved towards the middle by the rotating screw rods, the two groups of heating rods are moved towards the middle by the two groups of sliding blocks, when the distance between the two groups of heating rods and the circuit board is proper, the screw rods are stopped rotating, then an external power supply is turned on, the two groups of heating rods are heated by the external power supply, the two groups of heating rods heat the welding flux on the circuit board through radiation and air and enable the welding flux to be melted to bond the electric element on the circuit board, the motor is started simultaneously to drive the driving shaft and the two groups of clamping blocks to rotate, the two groups of clamping blocks drive the circuit board to rotate, the rotating circuit board enables all parts of the circuit board to be uniformly heated by the two groups of heating rods, after the electric element is completely welded on the circuit board, the sealing plate is opened, and the electric element is taken out, because the distance between the two groups of heating rods and the circuit board can be adjusted, and the distance between the two groups of clamping blocks can be adjusted, the circuit board with different sizes can be clamped, and the distance between the heating rods and the circuit board can be adjusted according to requirements, because the two groups of heating rods simultaneously heat the upper end and the lower end of the circuit board, the welding efficiency is improved, because the circuit board can rotate in the heating process, therefore, the heating is more uniform everywhere, the welding quality is good, and the reliability and the practicability are comprehensively improved.

Drawings

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

FIG. 2 is a schematic structural view of the connection of the clamping block, the telescopic rod and the driven shaft;

FIG. 3 is a schematic view showing the structure of the connection of the collecting plate, the roller, the handle and the like;

FIG. 4 is a schematic structural diagram of the connection of a screw rod, a slide block, a heating rod and the like;

in the drawings, the reference numbers: 1. a base plate; 2. a work box; 3. a heating rod; 4. a slider; 5. a screw rod; 6. a drive shaft; 7. a driven shaft; 8. a telescopic rod; 9. a clamping block; 10. a screw; 11. Briquetting; 12. a roller; 13. a collection plate; 14. a handle; 15. a cover plate; 16. a temperature sensor; 17. a signal line; 18. a temperature display instrument; 19. a first turntable; 20. a second turntable; 21. a suspension bracket; 22. an air gun; 23. an illumination device; 24. a base; 25. a handle sleeve.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the utility model relates to a reflow soldering machine special for an LED screen, which comprises a bottom plate 1, a working box 2, two groups of heating rods 3, four groups of sliding blocks 4, a screw rod 5, a driving shaft 6, a driven shaft 7, a telescopic rod 8, two groups of clamping blocks 9, two groups of screw rods 10 and two groups of pressing blocks 11, wherein the working box 2 is fixedly arranged at the upper end of the bottom plate 1, a heating cavity is arranged inside the working box 2, a taking and placing opening is arranged at the front end of the working box 2, a sealing plate is arranged outside the taking and placing opening through a rotating shaft, two groups of sliding blocks 4 are fixedly arranged at the left end and the right end of the two groups of heating rods 3, the four groups of sliding blocks 4 are respectively arranged at the left end and the right end of the heating cavity of the working box 2 in a vertical sliding manner, the two groups of heating rods 3 are respectively arranged at the upper part and the lower part of the heating cavity of the working box 2, the screw rod 5 is rotatably arranged on the working box 2, the upper end of the screw rod 5 is arranged above the working box 2, the upper part and the lower part of a screw rod 5 are respectively provided with external threads with opposite rotation directions, two groups of sliders 4 on the right side are respectively screwed with the upper part and the lower part of the screw rod 5, a driving shaft 6 is rotatably arranged at the left part of a working box 2, the left end of the driving shaft 6 is connected with the output end of a motor, the motor is fixedly arranged at the left end of the working box 2, a driven shaft 7 is rotatably arranged at the right part of the working box 2, the right end of a telescopic rod 8 is fixedly arranged at the left end of the driven shaft 7, two groups of clamping blocks 9 are respectively fixedly arranged on the driving shaft 6 and the telescopic rod 8, two groups of screws 10 are respectively screwed at the upper parts of the two groups of clamping blocks 9, and two groups of pressing blocks 11 are respectively fixedly arranged at the lower ends of the two groups of screws 10; firstly, an electrical element coated with solder is pressed on a circuit board of an LED through a fixing device, then the circuit board pressed with the electrical element is placed at the lower part of a left clamping block 9, then the right clamping block 9 is pulled, the right part of the circuit board is placed on the right clamping block 9, then two groups of screw rods 10 are rotated, as the two groups of screw rods 10 are respectively screwed with the two groups of clamping blocks 9, the two groups of pressing blocks 11 are pressed down by the rotating two groups of screw rods 10, the circuit board is pressed on the two groups of clamping blocks 9 by the two groups of pressing blocks 11, the two groups of screw rods 10 are stopped rotating, then the screw rod 5 is rotated, as the upper part and the lower part of the screw rod 5 are respectively screwed with the two groups of sliding blocks 4 at the right side, the rotating screw rod 5 enables the two groups of sliding blocks 4 to move towards the middle, the two groups of sliding blocks 4 enable the two groups of heating rods 3 to move towards the middle, and when the distance between the two groups of heating rods 3 and the circuit board is proper, the screw rod 5 is stopped rotating, then, an external power supply is turned on, the external power supply heats the two groups of heating rods 3, the two groups of heating rods 3 heat the welding flux on the circuit board through radiation and air and enable the welding flux to be melted so as to bond the electric element on the circuit board, meanwhile, a motor is turned on and drives a driving shaft 6 and two groups of clamping blocks 9 to rotate, the two groups of clamping blocks 9 drive the circuit board to rotate, the rotating circuit board enables all parts of the circuit board to be uniformly heated by the two groups of heating rods 3, after the electric element is completely welded on the circuit board, a sealing plate is opened, and the electric element is taken out, because the distance between the two groups of heating rods 3 and the circuit board can be adjusted, and the distance between the two groups of clamping blocks 9 can be adjusted, the circuit boards with different sizes can be clamped, and the distance between the heating rods 3 and the circuit board can be adjusted according to requirements, because the two groups of heating rods 3 simultaneously heat the upper end and the lower end of the circuit board, therefore, the efficiency of welding is improved, the circuit board can rotate in the heating process, so that the heating is more uniform everywhere, the welding quality is good, and the reliability and the practicability are comprehensively improved.

The utility model relates to a special reflow soldering machine for an LED screen, which further comprises a plurality of groups of rollers 12, a collecting plate 13, a handle 14 and a cover plate 15, wherein the plurality of groups of rollers 12 are rotatably arranged at the lower part of a heating cavity of a working box 2, the collecting plate 13 is arranged at the upper end of the plurality of groups of rollers 12, the handle 14 is fixedly arranged at the left end of the collecting plate 13, a cleaning opening is formed in the left part of the working box 2, and the cover plate 15 is arranged at the outer side of the cleaning opening through bolts; through the setting, make the impurity among the welding process drop on collecting plate 13, then open apron 15, drag collecting plate 13 out through handle 14, later processing collect on the collecting plate 13 impurity collect handle can, made things convenient for the collection and the processing to impurity, improved convenience and cleaning nature.

The special reflow soldering machine for the LED screen further comprises a temperature sensor 16, a signal wire 17 and a temperature display instrument 18, wherein the temperature sensor 16 is fixedly arranged in a heating cavity of the working box 2, the temperature display instrument 18 is fixedly arranged at the left end of the working box 2, and the temperature display instrument 18 is connected with the temperature sensor 16 through the signal wire 17; through the arrangement, the temperature in the heating cavity of the working box 2 can be conveniently monitored, and the convenience in the use process is improved.

The special reflow soldering machine for the LED screen further comprises two groups of first rotary discs 19 and second rotary discs 20, wherein the two groups of first rotary discs 19 are fixedly arranged at the upper ends of the two groups of screw rods 10 respectively, and the second rotary discs 20 are fixedly arranged at the upper ends of the screw rods 5; through the arrangement, the two groups of first rotating discs 19 and the screw rods 5 are convenient to rotate, and the convenience in the use process is improved.

The special reflow soldering machine for the LED screen further comprises a suspension bracket 21 and an air gun 22, wherein the suspension bracket 21 is fixedly arranged at the right end of the working box 2, and the air gun 22 is suspended on the suspension bracket 21; through the arrangement, dust and impurities on the work box 2 can be blown clean through the air gun 22, and the cleanness and the convenience in the use process are improved.

The special reflow soldering machine for the LED screen further comprises an illuminating device 23, wherein the illuminating device 23 is fixedly arranged in a heating cavity of the working box 2; through the arrangement, the heating cavity of the working box 2 is brighter, and the convenience in the use process is improved.

The special reflow soldering machine for the LED screen further comprises a base 24, wherein the base 24 is fixedly arranged at the lower end of the bottom plate 1; through the arrangement, the stability of the bottom plate 1 in the using process is improved.

The special reflow soldering machine for the LED screen further comprises a handle sleeve 25, wherein the handle sleeve 25 is fixedly arranged on the second turntable 20; through the arrangement, the second rotating disc 20 is convenient to grasp, and the convenience in the use process is improved.

The utility model relates to a special reflow soldering machine for an LED screen, which is operated by firstly pressing an electrical element coated with solder on a circuit board of an LED through a fixing device, then placing the circuit board pressed with the electrical element on the lower part of a left clamping block 9, then pulling a right clamping block 9, placing the right part of the circuit board on the right clamping block 9, then rotating two groups of screw rods 10, wherein the two groups of screw rods 10 are respectively screwed with the two groups of clamping blocks 9, so that the two groups of rotating screw rods 10 can press down two groups of pressing blocks 11, the two groups of pressing blocks 11 press the circuit board on the two groups of clamping blocks 9, stopping rotating the two groups of screw rods 10, then rotating a screw rod 5, because the upper part and the lower part of the screw rod 5 are respectively screwed with the two groups of sliding blocks 4 on the right side, the rotating screw rod 5 enables the two groups of sliding blocks 4 to move towards the middle, the two groups of sliding blocks 4 enable the two groups of heating rods 3 to move towards the middle, and when the distance between the two groups of heating rods 3 and the circuit board is proper, stop rotating lead screw 5, then open external power source, external power source makes two sets of heating rod 3 heats, two sets of heating rod 3 are through radiation and the solder on the air heating circuit board and make the solder melt and bond electrical component on the circuit board, open the motor simultaneously, the motor drives drive shaft 6 and two sets of grip block 9 rotations, two sets of grip block 9 drive circuit board are rotatory, rotatory circuit board makes each department of circuit board even by two sets of heating rod 3 heats, after electrical component welds completely on the circuit board, open the closing plate, it can to take out electrical component.

According to the special reflow soldering machine for the LED screen, the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the special reflow soldering machine can be implemented as long as the beneficial effects of the special reflow soldering machine are achieved; the heating rod 3, the telescopic rod 8, the temperature sensor 16 and the air gun 22 of the special reflow soldering machine for the LED screen are purchased from the market, and technicians in the industry only need to install and operate according to the attached operating instructions.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A special reflow soldering machine for an LED screen is characterized by comprising a bottom plate (1), a working box (2), two groups of heating rods (3), four groups of sliding blocks (4), a screw rod (5), a driving shaft (6), a driven shaft (7), a telescopic rod (8), two groups of clamping blocks (9), two groups of screw rods (10) and two groups of pressing blocks (11), wherein the working box (2) is fixedly arranged at the upper end of the bottom plate (1), a heating cavity is arranged inside the working box (2), a taking and placing opening is formed in the front end of the working box (2), a sealing plate is arranged on the outer side of the taking and placing opening through a rotating shaft, two groups of sliding blocks (4) are fixedly arranged at the left end and the right end of the two groups of heating rods (3), the four groups of sliding blocks (4) are vertically and slidably arranged at the left end and the right end of the heating cavity of the working box (2), the two groups of heating rods (3) are connected with an external power supply through electric wires, and the two groups of heating rods (3) are respectively arranged at the upper part and the lower part of the heating cavity of the working box (2), screw rod (5) are rotated and are installed on work box (2), the upper end of screw rod (5) is located the top of work box (2), the upper and lower two parts of screw rod (5) are provided with the opposite external screw thread of direction of rotation respectively, two sets of slider (4) on right side are respectively with the upper and lower two spiral shell dress of screw rod (5), drive shaft (6) are rotated and are installed the left part in work box (2), the left end of drive shaft (6) is connected with the output of motor, motor fixed mounting is at the left end of work box (2), driven shaft (7) are rotated and are installed the right part in work box (2), the right-hand member fixed mounting of telescopic link (8) is at the left end of driven shaft (7), two sets of grip block (9) are fixed mounting respectively on drive shaft (6) and telescopic link (8), two sets of screw rod (10) are spiral shell mounting respectively on the upper portion of two sets of grip block (9), two sets of press block (11) are fixed mounting respectively at the lower extreme of two sets of screw rod (10).

2. The reflow soldering machine special for the LED screen as claimed in claim 1, further comprising a plurality of sets of rollers (12), a collecting plate (13), a handle (14) and a cover plate (15), wherein the plurality of sets of rollers (12) are rotatably mounted at the lower part of the heating cavity of the work box (2), the collecting plate (13) is mounted at the upper end of the plurality of sets of rollers (12), the handle (14) is fixedly mounted at the left end of the collecting plate (13), the left part of the work box (2) is provided with a cleaning opening, and the cover plate (15) is mounted at the outer side of the cleaning opening through bolts.

3. The reflow soldering machine special for the LED screen as claimed in claim 1, further comprising a temperature sensor (16), a signal line (17) and a temperature display instrument (18), wherein the temperature sensor (16) is fixedly installed in the heating cavity of the work box (2), the temperature display instrument (18) is fixedly installed at the left end of the work box (2), and the temperature display instrument (18) and the temperature sensor (16) are connected through the signal line (17).

4. The reflow soldering machine special for the LED screen as claimed in claim 1, further comprising two sets of first rotating discs (19) and second rotating discs (20), wherein the two sets of first rotating discs (19) are respectively and fixedly installed at the upper ends of the two sets of screw rods (10), and the second rotating discs (20) are fixedly installed at the upper ends of the screw rods (5).

5. The reflow soldering machine special for the LED screen as claimed in claim 1, further comprising a suspension bracket (21) and an air gun (22), wherein the suspension bracket (21) is fixedly installed at the right end of the work box (2), and the air gun (22) is hung on the suspension bracket (21).

6. The reflow soldering machine special for the LED screen as claimed in claim 1, further comprising a lighting device (23), wherein the lighting device (23) is fixedly installed in the heating cavity of the work box (2).

7. The reflow soldering machine special for the LED screen as claimed in claim 1, further comprising a base (24), wherein the base (24) is fixedly installed at the lower end of the bottom plate (1).

8. The reflow soldering machine special for the LED screen as claimed in claim 3, further comprising a handle sleeve (25), wherein the handle sleeve (25) is fixedly installed on the second turntable (20).