Solder paste printing jig facilitating solder paste adding

Abstract

The utility model discloses a solder paste printing jig convenient to add solder paste, which belongs to the technical field of solder paste printing jigs, and comprises a printing box and a mounting plate, the bottom of the printing box is provided with a printing plate, the bottom of the mounting plate is provided with a scraping mechanism, the outer side of the printing box is sleeved with a clamping seat, and the outer side of the clamping seat is provided with a clamping groove. And the top surface of the clamping seat is fixedly connected with a supporting seat. The multi-stage electric push rod is used for driving the conveying cylinder and the paste outlet pipe to move, the second motor is used for driving the spiral conveying rod to rotate, the spiral conveying rod rotates to enable solder paste in the storage cylinder to move from the conveying cylinder, the paste outlet pipe is used for injecting the solder paste to a printing plate, and the first motor is used for driving the reciprocating lead screw to rotate. And the paste outlet pipe is driven to move front and back through cooperation between the reciprocating lead screw and the moving seat, so that solder paste is evenly added to the middle of the top face of the printing plate, the solder paste is automatically added, and the practicability of the solder paste printing jig facilitating solder paste adding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solder paste printing jigs, and more specifically to a solder paste printing jig which is convenient for adding solder paste. Background Art

[0002] Solder paste is a new type of welding material that came into being with SMT. It is a paste-like mixture formed by mixing solder powder, flux and other surfactants, thixotropic agents, etc. It is mainly used for welding electronic components such as resistors, capacitors, and ICs on the surface of PCBs in the SMT industry. Solder paste printing is to release the solder paste through the holes in the steel plate and contact the solder paste and print it on the tin pad (PCB board pad) of the substrate.

[0003] With the development of automation in circuit board production, the movement of circuit boards and the contact between circuit boards and printing jigs are generally automated, and the scraping of solder paste is also automated. However, the process of adding solder paste to the printing jig is mostly done manually, which is not convenient; and solder paste is easily accumulated on the scraping surface of the scraper, affecting the quality of printing. For this reason, we proposed a solder paste printing jig that is easy to add solder paste. Utility Model Content

[0004] In view of the problems mentioned in the above background technology, the purpose of the present invention is to provide a solder paste printing jig that is convenient for adding solder paste.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A solder paste printing jig for adding solder paste, comprising a printing box and a mounting plate, wherein a printing plate is arranged at the bottom of the printing box, a scraping mechanism is arranged at the bottom of the mounting plate, a card seat is sleeved on the outer side of the printing box, a support seat is fixedly connected to the top surface of the card seat, a slide groove is provided on the top of the support seat, a reciprocating screw rod is rotatably connected to the inner cavity of the slide groove, a first motor is fixedly installed on the end of the support seat, an output shaft of the first motor is connected to the end of the reciprocating screw rod, a moving seat is threadedly sleeved on the outer side of the reciprocating screw rod, and the moving seat is threadedly sleeved on the outer side of the reciprocating screw rod. An L-shaped bracket is fixedly connected to the top of the moving seat, and a multi-stage electric push rod is fixedly installed on the L-shaped bracket. The output end of the multi-stage electric push rod is fixedly connected to a mounting shell, and the end of the mounting shell is fixedly connected to a conveying cylinder, and the top of one end of the conveying cylinder is fixedly connected to a storage cylinder, and the bottom of the other end of the conveying cylinder is provided with a paste outlet pipe, and the inner cavity of the conveying cylinder is rotatably connected to a spiral feed rod, and a second motor is fixedly installed at the end of the conveying cylinder and located outside the mounting shell, and the output shaft of the second motor is connected to one end of the rotating shaft of the spiral feed rod.

[0007] As a preferred solution of the utility model, the scraper mechanism includes an electric telescopic rod fixedly mounted on the bottom surface of the mounting plate, a lifting plate is fixedly sleeved on the outer side of the electric telescopic rod, the bottom surface of the lifting plate is fixedly connected to two suspension rods, the bottom ends of the two suspension rods are fixedly connected to a scraper seat, the bottom surface of the scraper seat is fixedly connected to two scrapers, the top surface of the scraper seat is fixedly mounted with a blowing fan, the output end of the blowing fan extends to the bottom of the scraper seat and is fixedly sleeved with a blow box, and blowing grooves are respectively provided on both sides of the bottom surface of the blow box.

[0008] As a preferred solution of the utility model, a heating ring is fixedly sleeved on the outer side of the storage barrel, and a barrel cover is threadedly mounted on the top end of the storage barrel.

[0009] As a preferred solution of the utility model, a butterfly screw is sleeved on the outer thread of the holder, and the end of the butterfly screw is in contact with the outer side surface of the printing box.

[0010] As a preferred solution of the utility model, the inner wall of the slide groove and the outer side surface of the movable seat are in contact with each other.

[0011] As a preferred solution of the utility model, the side surface of the spiral feeding rod is in contact with the inner wall of the conveying cylinder.

[0012] As a preferred solution of the utility model, a plurality of mounting holes are provided on the top surface of the mounting plate.

[0013] The advantages of the utility model are:

[0014] (1) In the present invention, a multi-stage electric push rod is used to drive the conveying cylinder and the paste outlet tube to move, and a second motor is used to drive the spiral feed rod to rotate, so that the rotation of the spiral feed rod causes the solder paste in the storage cylinder to move from the conveying cylinder, and the solder paste is injected into the printing plate by the paste outlet tube; and the reciprocating screw rod is driven to rotate by the first motor, and the paste outlet tube is driven to move back and forth by the cooperation between the reciprocating screw rod and the moving seat, so that the solder paste is evenly added to the middle of the top surface of the printing plate, thereby realizing automatic addition of solder paste.

[0015] (2) In the utility model, a scraper is used to scrape the solder paste on the printing plate for printing. In addition, a fan is used to make the blowing slot at the bottom of the blowing box blow air downward, and the wind force is used to clean the solder paste attached to the bottom of the scraper to avoid the solder paste from accumulating on the inner wall of the scraper. It is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the card holder of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the conveying tube of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the blowing box of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Printing box; 2. Mounting plate; 3. Scraping mechanism; 4. Printing plate; 5. Card seat; 6. Support seat; 7. Slide; 8. Reciprocating screw; 9. Moving seat; 10. L-shaped bracket; 11. Multi-stage electric push rod; 12. First motor; 13. Mounting shell; 14. Conveying cylinder; 15. Paste discharge pipe; 16. Screw feeding rod; 17. Second motor; 18. Storage cylinder; 19. Cylinder cover; 20. Heating ring; 21. Butterfly screw; 22. Electric telescopic rod; 23. Lifting plate; 24. Hanging rod; 25. Scraper seat; 26. Scraper; 27. Blowing box; 28. Blowing slot; 29. ​​Blowing fan; 30. Mounting hole. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 A solder paste printing jig for adding solder paste conveniently comprises a printing box 1 and a mounting plate 2, a printing plate 4 is arranged at the bottom of the printing box 1, a scraping mechanism 3 is arranged at the bottom of the mounting plate 2, a card seat 5 is sleeved on the outer side of the printing box 1, a support seat 6 is fixedly connected to the top surface of the card seat 5, a slide groove 7 is opened at the top of the support seat 6, a reciprocating screw rod 8 is rotatably connected to the inner cavity of the slide groove 7, a first motor 12 is fixedly installed at the end of the support seat 6, an output shaft of the first motor 12 is connected to the end of the reciprocating screw rod 8, a moving seat 9 is threadedly sleeved on the outer side of the reciprocating screw rod 8, and the top of the moving seat 9 is fixedly connected to An L-shaped bracket 10 is connected, and a multi-stage electric push rod 11 is fixedly installed on the L-shaped bracket 10. The output end of the multi-stage electric push rod 11 is fixedly connected to a mounting shell 13, and the end of the mounting shell 13 is fixedly connected to a conveying cylinder 14, and the top of one end of the conveying cylinder 14 is fixedly connected to a storage cylinder 18, and the bottom of the other end of the conveying cylinder 14 is provided with a paste outlet pipe 15. The inner cavity of the conveying cylinder 14 is rotatably connected to a spiral feed rod 16, and a second motor 17 is fixedly installed at the end of the conveying cylinder 14 and located outside the mounting shell 13, and the output shaft of the second motor 17 is connected to one end of the rotating shaft of the spiral feed rod 16.

[0027] For details, please refer to Figure 1 and Figure 4 The scraper mechanism 3 includes an electric telescopic rod 22 fixedly mounted on the bottom surface of the mounting plate 2, a lifting plate 23 is fixedly sleeved on the outer side of the electric telescopic rod 22, two suspension rods 24 are fixedly connected to the bottom surface of the lifting plate 23, a scraper seat 25 is fixedly connected to the bottom ends of the two suspension rods 24, two scrapers 26 are fixedly connected to the bottom surface of the scraper seat 25, a blowing fan 29 is fixedly mounted on the top surface of the scraper seat 25, an output end of the blowing fan 29 extends to the bottom of the scraper seat 25 and is fixedly sleeved with a blowing box 27, and blowing grooves 28 are respectively provided on both sides of the bottom surface of the blowing box 27.

[0028] For details, please refer to Figure 2 A heating ring 20 is fixedly sleeved on the outer side of the storage barrel 18, and a barrel cover 19 is threadedly installed on the top of the storage barrel 18.

[0029] In this embodiment, the solder paste in the storage barrel 18 is heated by the heating ring 20 to prevent the solder paste from solidifying. In addition, the solder paste is loaded into the storage barrel 18 by removing the barrel cover 19 .

[0030] For details, please refer to Figure 2 The outer side of the card seat 5 is threadedly sleeved with a butterfly screw 21, and the end of the butterfly screw 21 is in contact with the outer side surface of the printing box 1.

[0031] In this embodiment, the holder 5 is fixed by a butterfly screw 21 .

[0032] For details, please refer to Figure 2 The inner wall of the slide groove 7 and the outer side surface of the movable seat 9 are in contact with each other.

[0033] In this embodiment, the inner wall of the slide groove 7 is used to limit the movable seat 9 so that the movable seat 9 can only move along the axial direction of the reciprocating screw rod 8 .

[0034] For details, please refer to Figure 3 The side surface of the spiral feeding rod 16 is in contact with the inner wall of the conveying tube 14 .

[0035] In this embodiment, the contact between the side surface of the spiral feeding rod 16 and the inner wall of the conveying tube 14 ensures that the spiral feeding rod 16 can convey the solder paste in the conveying tube 14 .

[0036] For details, please refer to Figure 1 A plurality of mounting holes 30 are formed on the top surface of the mounting plate 2 .

[0037] In this embodiment, the mounting plate 2 is mounted on the printing press through the mounting hole 30 , and the mounting plate 2 and the scraping mechanism 3 are driven by the printing press to move, thereby scraping the printing plate 4 .

[0038] Working principle: When in use, first put the card seat 5 on the printing box 1, turn the butterfly screw 21 to squeeze and fix the card seat 5, and at the same time, load solder paste into the storage barrel 18, and energize the heating ring 20 to heat the solder paste in the storage barrel 18 to prevent the solder paste in the storage barrel 18 from solidifying, and then start the multi-stage electric push rod 11 to drive the installation shell 13, the conveying barrel 14 and the paste outlet tube 15 to move, so that the paste outlet tube 15 moves to the top of the printing plate 4, and use the multi-stage electric push rod 11 to drive the paste outlet tube 15 to move slowly, and start the second motor 17 to drive the spiral feed rod 16 to rotate, so that the solder paste in the storage barrel 18 entering the conveying barrel 14 moves through the spiral feed rod 16, and the solder paste falls from the paste outlet tube 15 onto the printing plate 4, and at the same time start the first motor 12 to drive the reciprocating screw rod 8 to rotate, and use the cooperation between the reciprocating screw rod 8 and the moving seat 9 to drive the L-shaped The bracket 10, the material storage barrel 18 and the paste outlet tube 15 move back and forth, so that the solder paste on the paste outlet tube 15 falls evenly onto the printing plate 4. Then, when the solder paste is placed in the middle of the printing plate 4, the electric telescopic rod 22 is started to drive the lifting plate 23 to move upward, so that the scraper 26 moves to the upper part of the printing plate 4, and the printing press is used to drive the scraper 26 to move to both sides of the solder paste on the top surface of the printing plate 4. Finally, the electric telescopic rod 22 is started to drive the scraper 26 to move downward and contact the top surface of the printing plate 4, and the printing press is used to drive the scraper 26 to move to scrape the solder paste. In addition, when the scraper 26 does not scrape, the blowing fan 29 is started to blow air into the blowing box 27, and the gas in the blowing box 27 is ejected from the blowing groove 28. The gas ejected from the blowing groove 28 is used to blow the solder paste attached to the inner side of the scraper 26, so as to realize the function of cleaning the solder paste attached to the bottom end of the scraper 26.

[0039] 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 substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and improved concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A solder paste printing jig for adding solder paste, comprising a printing box (1) and a mounting plate (2), characterized in that: A printing plate (4) is arranged at the bottom of the printing box (1), a scraping mechanism (3) is arranged at the bottom of the mounting plate (2), a card seat (5) is sleeved on the outer side of the printing box (1), a support seat (6) is fixedly connected to the top surface of the card seat (5), a slide groove (7) is arranged at the top end of the support seat (6), a reciprocating screw rod (8) is rotatably connected to the inner cavity of the slide groove (7), a first motor (12) is fixedly installed at the end of the support seat (6), an output shaft of the first motor (12) is connected to the end of the reciprocating screw rod (8), a moving seat (9) is threadedly sleeved on the outer side of the reciprocating screw rod (8), and an L-shaped bracket (10) is fixedly connected to the top end of the moving seat (9). A multi-stage electric push rod (11) is fixedly mounted on the L-shaped bracket (10); the output end of the multi-stage electric push rod (11) is fixedly connected to a mounting shell (13); the end of the mounting shell (13) is fixedly connected to a conveying cylinder (14); the top of one end of the conveying cylinder (14) is fixedly connected to a material storage cylinder (18); the bottom of the other end of the conveying cylinder (14) is provided with a paste outlet pipe (15); the inner cavity of the conveying cylinder (14) is rotatably connected to a spiral feed rod (16); a second motor (17) is fixedly mounted at the end of the conveying cylinder (14) and located outside the mounting shell (13); the output shaft of the second motor (17) is connected to one end of the rotating shaft of the spiral feed rod (16).

2. The solder paste printing jig for adding solder paste according to claim 1, characterized in that: The scraper mechanism (3) comprises an electric telescopic rod (22) fixedly mounted on the bottom surface of the mounting plate (2); a lifting plate (23) is fixedly sleeved on the outer side of the electric telescopic rod (22); two suspension rods (24) are fixedly connected to the bottom surface of the lifting plate (23); a scraper seat (25) is fixedly connected to the bottom ends of the two suspension rods (24); two scrapers (26) are fixedly connected to the bottom surface of the scraper seat (25); a blowing fan (29) is fixedly mounted on the top surface of the scraper seat (25); an output end of the blowing fan (29) extends to the bottom of the scraper seat (25) and is fixedly sleeved with a blowing box (27); blowing grooves (28) are respectively provided on both sides of the bottom surface of the blowing box (27).

3. The solder paste printing jig for adding solder paste according to claim 1, characterized in that: A heating ring (20) is fixedly sleeved on the outer side of the storage barrel (18), and a barrel cover (19) is threadedly mounted on the top end of the storage barrel (18).

4. The solder paste printing jig for adding solder paste according to claim 1, characterized in that: The outer side of the holder (5) is threadedly sleeved with a butterfly screw (21), and the end of the butterfly screw (21) is in contact with the outer side surface of the printing box (1).

5. The solder paste printing jig for adding solder paste according to claim 1, characterized in that: The inner wall of the slide groove (7) is in contact with the outer side surface of the movable seat (9).

6. The solder paste printing jig for adding solder paste according to claim 1, characterized in that: The side surface of the spiral feeding rod (16) is in contact with the inner wall of the conveying cylinder (14).

7. The solder paste printing jig for adding solder paste according to claim 1, characterized in that: A plurality of mounting holes (30) are provided on the top surface of the mounting plate (2).

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