Automatic tin supply mechanism and printing equipment

Abstract

The utility model belongs to the technical field of solder paste printing, and particularly relates to an automatic tin supply mechanism and printing equipment. The automatic tin supply mechanism comprises a supporting frame, a driving piece, a gear, a first rack, a second rack, a first tin storage tank and a second tin storage tank. The driving piece is installed on the supporting frame and connected with the gear, and the first rack and the second rack are engaged with the two opposite sides of the gear respectively; the first tin storage tank comprises a first tank body provided with a first tin storage hole and a first piston inserted into the first tin storage hole, the first piston is installed on the supporting frame, and the first rack is connected with the first tank body; the second tin storage tank comprises a second tank body provided with a second tin storage hole and a second piston inserted into the second tin storage hole, the second piston is installed on the supporting frame, and the second rack is connected with the second tank body. The automatic tin supply mechanism is simple in structure, low in manufacturing cost and small in occupied space.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tin paste printing, especially relates to an automatic tin supply mechanism and printing equipment. BACKGROUND

[0002] With the rapid development of electronic industry, SMT (Surface Mounted Technology) technology is increasingly perfect, SMT technology refers to printing, coating soldering tin paste on the pad of printed circuit board, and accurately pasting surface mounted components to the pad coated with soldering tin paste, according to specific reflow temperature curve, heating circuit board, let soldering tin paste melt, and its alloy composition cools and solidifies to form welding point between components and printed circuit board and realize metallurgical connection. Soldering tin paste is a new type of welding material along with SMT, and can initially stick electronic components in the specified position, under the welding temperature, along with the volatilization of solvent and part of additive, the welded components and printed circuit pad are welded together to form permanent connection.

[0003] With the continuous progress of automation technology, the automatic printing machine for automatic printing of circuit board has been applied in various circuit board manufacturers. The tin supply device is a component for providing tin paste for the automatic printing machine, and the tin paste in the tin storage tank can be quantitatively added to the syringe, so as to complete the tin paste injection function of the syringe. In the prior art, the tin supply device usually has only one tin storage tank, and for the automatic printing machine with two syringes, two tin supply mechanisms need to be configured, which has the technical problems of high manufacturing cost and large occupied space. SUMMARY

[0004] The utility model solves the technical problem of high manufacturing cost and large occupied space of the tin supply device in the prior art, and provides an automatic tin supply mechanism and printing equipment.

[0005] In view of the above problems, the utility model discloses an automatic tin supply mechanism, which comprises a support frame, a driving part, a gear, a first rack, a second rack, a first tin storage tank and a second tin storage tank.

[0006] The driving part is installed on the support frame and connected with the gear, and the first rack and the second rack are respectively engaged on the opposite sides of the gear.

[0007] The first tin storage tank comprises a first tank body provided with a first tin storage hole and a first piston inserted into the first tin storage hole, the first piston is installed on the support frame, and the first rack is connected with the first tank body.

[0008] The second tin storage tank comprises a second tank body provided with a second tin storage hole and a second piston inserted into the second tin storage hole, the second piston is installed on the support frame, and the second rack is connected to the second tank body.

[0009] Optionally, the automatic tin feeding mechanism further comprises a first mounting seat provided with a first mounting groove and a second mounting seat provided with a second mounting groove;

[0010] The first mounting seat and the second mounting seat are both slidingly installed on the support frame, the first tank body is installed in the first mounting groove, and the second tank body is installed in the second mounting groove.

[0011] The first rack is installed on the first mounting seat, and the second rack is installed on the second mounting seat.

[0012] Optionally, the automatic tin feeding mechanism further comprises a first guide rail installed on the support frame and a first sliding block installed on the first mounting seat, and the first sliding block is slidingly connected with the first guide rail.

[0013] The automatic tin feeding mechanism further comprises a second guide rail installed on the support frame and a second sliding block installed on the second mounting seat, and the second sliding block is slidingly connected with the second guide rail.

[0014] Optionally, first and second convex portions are spaced apart on the inner wall of the first mounting groove, and a first limiting groove is arranged between the first and second convex portions; third and fourth convex portions are spaced apart on the outer wall of the first tank body, and a second limiting groove is arranged between the third and fourth convex portions.

[0015] The third convex portion is inserted into the first limiting groove, and the second convex portion is inserted into the second limiting groove.

[0016] Optionally, fifth and sixth convex portions are spaced apart on the inner wall of the second mounting groove, and a third limiting groove is arranged between the fifth and sixth convex portions; seventh and eighth convex portions are spaced apart on the outer wall of the second tank body, and a fourth limiting groove is arranged between the seventh and eighth convex portions.

[0017] The seventh convex portion is inserted into the third limiting groove, and the sixth convex portion is inserted into the fourth limiting groove.

[0018] Optionally, the support frame comprises a back plate, a first top plate and a second top plate which are spaced apart and installed on the back plate; the driving member is installed on the back plate, one end of the first piston away from the first tank body is installed on the first top plate, and one end of the second piston away from the second tank body is installed on the second top plate.

[0019] Optionally, the back plate is provided with a mounting hole, and the driving member is mounted in the mounting hole.

[0020] Optionally, the first rack and the second rack are symmetrically arranged, and the first tin storage tank and the second tin storage tank are symmetrically arranged.

[0021] The utility model discloses another embodiment still provides a kind of printing equipment, including the automatic tin supply mechanism of above.

[0022] In the utility model, the driving member drives the gear rotation, the gear drives the first rack and the second rack synchronous movement, the first rack drives the first tank body movement, so that the first piston can extrude the tin paste in the first tank body, the second rack drives the second tank body movement, so that the second piston can extrude the tin paste in the second tank body.In the utility model, the gear can extrude the tin paste in the first tin storage tank and the second tin storage tank by the first rack and the second rack synchronous, and the automatic tin supply mechanism has simple structure, low manufacturing cost, and small space occupation. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further illustrated below in connection with drawings and embodiment.

[0024] Figure 1 The structure schematic view of automatic tin supply mechanism provided for an embodiment of the utility model is shown in the figure;

[0025] Figure 2 The partial structure schematic view of automatic tin supply mechanism provided for an embodiment of the utility model is shown in the figure;

[0026] Figure 3 The structure schematic view of the first tin storage tank of automatic tin supply mechanism provided for an embodiment of the utility model is shown in the figure.

[0027] Reference signs in the specification are as follows:

[0028] 1, support frame;11, first guide rail;12, first sliding block;13, second guide rail;14, second sliding block;15, back plate;16, first top plate;17, second top plate;2, driving member;3, gear;4, first rack;5, second rack;6, first tin storage tank;61, first tank body;611, third protruding part;612, fourth protruding part;613, second limiting groove;62, first piston;7, second tin storage tank;71, second tank body;72, second piston;8, first mounting seat;81, first mounting groove;82, first protruding part;83, second protruding part;84, first limiting groove;9, second mounting seat;91, second mounting groove. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0030] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0031] As shown in Figures 1 to 3 The utility model provides an automatic tin supply mechanism, including support frame 1, drive piece 2, gear 3, first rack 4, second rack 5, first tin storage tank 6 and second tin storage tank 7;

[0032] The drive piece 2 is installed on the support frame 1 and is connected with the gear 3, and the first rack 4 and the second rack 5 are respectively engaged on the opposite sides of the gear 3. As a preferred, the first rack 4 and the second rack 5 are symmetrically arranged, and the first rack 4 and the second rack 5 are respectively engaged with the left and right sides of the gear 3. Understandably, the drive piece 2 includes but is not limited to motor, air cylinder and the like.

[0033] The first tin storage tank 6 includes a first tank body 61 provided with a first tin storage hole (not shown in the figure) and a first piston 62 inserted into the first tin storage hole, the first piston 62 is installed on the support frame 1, and the first rack 4 is connected with the first tank body 61. Understandably, the first piston 62 moves in the first tin storage hole for extruding the tin paste in the first tin storage hole.

[0034] The second tin storage tank 7 includes a second tank body 71 provided with a second tin storage hole (not shown in the figure) and a second piston 72 inserted into the second tin storage hole, the second piston 72 is installed on the support frame 1, and the second rack 5 is connected with the second tank body 71. Understandably, the second piston 72 moves in the second tin storage hole for extruding the tin paste in the second tin storage hole. As a preferred, the first tin storage tank 6 and the second tin storage tank 7 are symmetrically arranged.

[0035] The utility model discloses a drive 2 drive gear 3 rotation, gear 3 drive first rack 4 and second rack 5 synchronous movement, first rack 4 drive first jar body 61 move, so that first piston 62 can extrude the tin paste in first jar body 61, second rack 5 drive second jar body 71 move, so that second piston 72 can extrude the tin paste in second jar body 71, the utility model discloses a gear 3 through first rack 4 and second rack 5 synchronous can extrude the tin paste in first tin storage jar 6 and second tin storage jar 7, and this automatic tin supply mechanism's structure is simple, and the manufacturing cost is low, and the space is small.

[0036] In an embodiment, as shown in Figure 1 and Figure 2 The automatic tin supply mechanism further includes a first mounting seat 8 provided with a first mounting slot 81 and a second mounting seat 9 provided with a second mounting slot 91. Understandably, the opening of the first mounting slot 81 faces upward, and the opening of the second mounting slot 91 faces upward.

[0037] The first mounting seat 8 and the second mounting seat 9 are both slidingly installed on the support frame 1, the first jar body 61 is installed in the first mounting slot 81, and the second jar body 71 is installed in the second mounting slot 91. Understandably, the first mounting seat 8 can support the first jar body 61, and the second mounting seat 9 can support the second jar body 71.

[0038] The first rack 4 is installed on the first mounting seat 8, and the second rack 5 is installed on the second mounting seat 9. Specifically, the first rack 4 can drive the first mounting seat 8 to slide on the support frame 1, and the first mounting seat 8 can drive the first jar body 61 to move. Similarly, the second rack 5 can drive the second mounting seat 9 to slide on the support frame 1, and the second mounting seat 9 can drive the second jar body 71 to move. In this embodiment, the replacement operation of the first jar body 61 on the first mounting seat 8 is simple, and the replacement operation of the second jar body 71 on the second mounting seat 9 is simple.

[0039] In an embodiment, as shown in Figure 1 and Figure 2As shown in the figure, the automatic tin feeding mechanism further comprises a first guide rail 11 installed on the support frame 1 and a first sliding block 12 installed on the first mounting seat 8, and the first sliding block 12 is in sliding connection with the first guide rail 11. Understandably, the first guide rail 11 is arranged in parallel with the first rack 4, and in the process of moving the first mounting seat 8 driven by the first rack 4, the first mounting seat 8 slides along the first guide rail 11 through the first sliding block 12. In this embodiment, the design of the first guide rail 11 and the first sliding block 12 ensures the stability of the movement of the first mounting seat 8 and also ensures the load capacity of the first mounting seat 8.

[0040] In an embodiment, as shown in Figure 1 and Figure 2 As shown in the figure, the automatic tin feeding mechanism further comprises a second guide rail 13 installed on the support frame 1 and a second sliding block 14 installed on the second mounting seat 9, and the second sliding block 14 is in sliding connection with the second guide rail 13. Understandably, the second guide rail 13 is arranged in parallel with the second rack 5, and in the process of moving the second mounting seat 9 driven by the second rack 5, the second mounting seat 9 slides along the second guide rail 13 through the second sliding block 14. In this embodiment, the design of the second guide rail 13 and the second sliding block 14 ensures the stability of the movement of the second mounting seat 9 and also ensures the load capacity of the second mounting seat 9.

[0041] In an embodiment, as shown in Figures 1 to 3 As shown in the figure, the inner wall of the first mounting groove 81 is provided with a first protruding part 82 and a second protruding part 83 distributed at intervals, and a first limiting groove 84 is arranged between the first protruding part 82 and the second protruding part 83; the outer wall of the first tank body 61 is provided with a third protruding part 611 and a fourth protruding part 612 distributed at intervals, and a second limiting groove 613 is arranged between the third protruding part 611 and the fourth protruding part 612; the third protruding part 611 is inserted into the first limiting groove 84, and the second protruding part 83 is inserted into the second limiting groove 613. Understandably, the first protruding part 82 can abut against the third protruding part 611, so that the first protruding part 82 can support the first tank body 61; or the second protruding part 83 abuts against the fourth protruding part 612, so that the second protruding part 83 can support the first tank body 61. In this embodiment, the design of the first limiting groove 84 and the second limiting groove 613 ensures the stability of the installation of the first tank body 61 in the first mounting groove 81.

[0042] In an embodiment, as shown in Figure 1 and Figure 2As shown, the inner wall of the second mounting groove 91 is provided with a fifth protrusion and a sixth protrusion which are spaced apart, and a third limiting groove is arranged between the fifth protrusion and the sixth protrusion; the outer wall of the second tank body 71 is provided with a seventh protrusion and an eighth protrusion which are spaced apart, and a fourth limiting groove is arranged between the seventh protrusion and the eighth protrusion; the seventh protrusion is inserted into the third limiting groove, and the sixth protrusion is inserted into the fourth limiting groove. Understandably, the fifth protrusion can abut against the seventh protrusion, so that the fifth protrusion can support the second tank body 71; or the sixth protrusion can abut against the eighth protrusion, so that the sixth protrusion can support the second tank body 71. In the embodiment, the design of the third limiting groove and the fourth limiting groove ensures the stability of the second tank body 71 mounted in the second mounting groove 91.

[0043] In an embodiment, as shown in Figure 1 and Figure 2 As shown, the support frame 1 comprises a back plate 15, and a first top plate 16 and a second top plate 17 which are spaced apart and mounted on the back plate 15; the driving member 2 is mounted on the back plate 15, one end of the first piston 62 away from the first tank body 61 is mounted on the first top plate 16, and one end of the second piston 72 away from the second tank body 71 is mounted on the second top plate 17. Understandably, the first top plate 16 and the second top plate 17 are symmetrically arranged, and the first top plate 16 is vertically arranged on the back plate 15. In the embodiment, the top of the first piston 62 is mounted on the first top plate 16, and the bottom of the first piston 62 is slidingly inserted into the first tin storage hole, so as to ensure the stability of the first tin storage tank 6 mounted on the support frame 1; similarly, the top of the second piston 72 is mounted on the second top plate 17, and the bottom of the second piston 72 is slidingly inserted into the second tin storage hole, so as to ensure the stability of the second tin storage tank 7 mounted on the support frame 1.

[0044] In an embodiment, as shown in Figure 1 and Figure 2 As shown, the back plate 15 is provided with a mounting hole, and the driving member 2 is mounted in the mounting hole. Understandably, part of the driving member 2 is located at the back of the back plate 15, and the other part of the driving member 2 is located at the front of the back plate 15 and connected with the gear 3, so as to further improve the compactness of the automatic tin supply mechanism.

[0045] Another embodiment of the utility model also provides a printing equipment which comprises the automatic tin supply mechanism.

[0046] The above merely describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic solder feeding mechanism, characterized in that, It includes a support frame, a drive component, gears, a first rack, a second rack, a first tin storage tank, and a second tin storage tank; The drive component is mounted on the support frame and connected to the gear, with the first rack and the second rack meshing on opposite sides of the gear respectively; The first tin storage tank includes a first tank body with a first tin storage hole and a first piston inserted into the first tin storage hole. The first piston is mounted on the support frame, and the first rack is connected to the first tank body. The second tin storage tank includes a second tank body with a second tin storage hole and a second piston inserted into the second tin storage hole. The second piston is mounted on the support frame, and the second rack is connected to the second tank body.

2. The automatic solder feeding mechanism according to claim 1, characterized in that, The automatic solder feeding mechanism further includes a first mounting base with a first mounting slot and a second mounting base with a second mounting slot; Both the first mounting base and the second mounting base are slidably mounted on the support frame, the first tank is mounted in the first mounting groove, and the second tank is mounted in the second mounting groove; The first rack is mounted on the first mounting base, and the second rack is mounted on the second mounting base.

3. The automatic solder feeding mechanism according to claim 2, characterized in that, The automatic solder feeding mechanism further includes a first guide rail mounted on the support frame and a first slider mounted on the first mounting base, wherein the first slider is slidably connected to the first guide rail. The automatic solder feeding mechanism further includes a second guide rail mounted on the support frame and a second slider mounted on the second mounting base, wherein the second slider is slidably connected to the second guide rail.

4. The automatic solder feeding mechanism according to claim 2, characterized in that, The inner wall of the first mounting groove is provided with a first protrusion and a second protrusion spaced apart, and a first limiting groove is provided between the first protrusion and the second protrusion; the outer wall of the first tank is provided with a third protrusion and a fourth protrusion spaced apart, and a second limiting groove is provided between the third protrusion and the fourth protrusion. The third protrusion is inserted into the first limiting groove, and the second protrusion is inserted into the second limiting groove.

5. The automatic solder feeding mechanism according to claim 2, characterized in that, The inner wall of the second mounting groove is provided with a fifth protrusion and a sixth protrusion spaced apart, and a third limiting groove is provided between the fifth protrusion and the sixth protrusion; the outer wall of the second tank is provided with a seventh protrusion and an eighth protrusion spaced apart, and a fourth limiting groove is provided between the seventh protrusion and the eighth protrusion. The seventh protrusion is inserted into the third limiting groove, and the sixth protrusion is inserted into the fourth limiting groove.

6. The automatic solder feeding mechanism according to claim 1, characterized in that, The support frame includes a back plate and a first top plate and a second top plate spaced apart on the back plate; the drive unit is mounted on the back plate, the end of the first piston away from the first tank is mounted on the first top plate, and the end of the second piston away from the second tank is mounted on the second top plate.

7. The automatic solder feeding mechanism according to claim 6, characterized in that, The back plate is provided with mounting holes, and the drive component is installed in the mounting holes.

8. The automatic solder feeding mechanism according to any one of claims 1 to 7, characterized in that, The first rack and the second rack are symmetrically arranged, and the first tin storage tank and the second tin storage tank are symmetrically arranged.

9. A printing apparatus, characterized in that, Includes the automatic tin feeding mechanism as described in any one of claims 1 to 8.

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