Solder paste stirrer

Abstract

The utility model relates to the technical field of stirring equipment, in particular to a solder paste stirrer which comprises a push plate and a stirring mechanism, the stirring mechanism comprises a driving motor, a turntable and a plurality of stirring shafts, the turntable is arranged at the inner bottom of the push plate, the driving motor is fixed at the bottom of the push plate, and an output shaft of the driving motor is connected with the circle center of the turntable; the plurality of stirring shafts are uniformly fixed on the upper surface of the turntable, and when the stirring mechanism works, the push plate rotates synchronously; the hydraulic cylinder is used for driving the push plate to move along the height direction of the stirring shaft. The driving motor drives the rotating disc to rotate, so that the stirring shaft rotates, solder paste in the stirring shell is stirred through rotation of the stirring shaft, then the hydraulic cylinder drives the push plate to move in the height direction of the stirring shaft, the solder paste in the push plate can be discharged through the extrusion pipe, and then the solder paste is extruded; and meanwhile, residues on the inner wall of the push plate are avoided.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a solder paste mixer. Background Technology

[0002] Solder paste mixers are specialized pieces of equipment used in the electronics manufacturing industry, primarily for uniformly mixing solder paste. In surface mount technology (SMT) processes, solder paste is used to attach the leads of electronic components to pads on printed circuit boards (PCBs). To ensure good soldering results, the solder paste needs to be kept in a uniform state.

[0003] However, since solder paste is viscous and has non-fluid properties, it is not convenient to pour or discharge after stirring, and there is usually residue on the inner wall of the container after stirring. Therefore, we propose a solder paste mixer. Utility Model Content

[0004] In view of the problems existing in the background art, this utility model provides a solder paste mixer.

[0005] The technical solution of this utility model is as follows: a solder paste mixer, including a push plate and a mixing mechanism. The mixing mechanism includes a drive motor, a turntable and a mixing shaft. The turntable is disposed at the inner bottom of the push plate. The drive motor is fixed to the bottom of the push plate and its output shaft is connected to the center of the turntable. Multiple mixing shafts are provided and are evenly fixed on the upper surface of the turntable. When the mixing mechanism is working, the push plate rotates synchronously.

[0006] It also includes a hydraulic cylinder for driving the pusher plate to move along the height direction of the stirring shaft.

[0007] In an optional embodiment, the push plate is provided with multiple connection interfaces, and each of the multiple connection interfaces corresponds to one of the multiple stirring shafts.

[0008] In an optional embodiment, at least a portion of the stirring shaft extends into the connection interface, and the stirring shaft is interference-fitted with the connection interface.

[0009] In an optional embodiment, the outer peripheral side of the pusher plate contacts the inner wall of the stirring shell.

[0010] In an optional embodiment, a hydraulic cylinder is provided on the push plate, and an electromagnetic chuck is fixed to the telescopic end of the hydraulic cylinder. The electromagnetic chuck is used to magnetically connect with the push plate.

[0011] In an optional embodiment, the top of the stirring housing is provided with a filling port for dispensing solder paste.

[0012] In an optional embodiment, the bottom of the stirring housing is provided with an extrusion tube for discharging solder paste, and the extrusion tube is provided with a solenoid valve.

[0013] In an optional embodiment, the pusher plate is made of a magnetically conductive material.

[0014] In an optional embodiment, a sealing cap is threadedly connected to the push plate.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] This invention uses a drive motor to drive a turntable to rotate, which in turn rotates a stirring shaft. The rotating stirring shaft stirs the solder paste inside the stirring housing. Then, a hydraulic cylinder drives a pusher plate to move along the height of the stirring shaft, allowing the solder paste inside the pusher plate to be discharged through an extrusion tube, thus achieving solder paste extrusion while avoiding residue on the inner wall of the pusher plate. Attached Figure Description

[0017] Figure 1 This is a front sectional view of the solder paste mixer in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the turntable structure in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the push plate in an embodiment of the present invention.

[0020] Figure label:

[0021] 100. Mixing shell; 110. Filling port; 120. Extrusion tube; 200. Drive motor; 210. Turntable; 220. Mixing shaft; 300. Push plate; 310. Connection interface; 320. Sealing cover; 400. Electromagnetic chuck; 500. Hydraulic cylinder. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "inner", "outer", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 3 As shown, the present invention proposes a solder paste mixer, including a push plate 300 and a mixing mechanism. The mixing mechanism includes a drive motor 200, a turntable 210 and a mixing shaft 220. The turntable 210 is disposed at the inner bottom of the push plate 300. The drive motor 200 is fixed to the bottom of the push plate 300 and its output shaft is connected to the center of the turntable 210. Multiple mixing shafts 220 are provided and are evenly fixed on the upper surface of the turntable 210. When the mixing mechanism is working, the push plate 300 rotates synchronously.

[0025] It also includes a hydraulic cylinder 500, which is used to drive the pusher plate 300 to move along the height direction of the stirring shaft 220.

[0026] The drive motor 200 drives the turntable 210 to rotate, thereby causing the stirring shaft 220 to rotate. The rotation of the stirring shaft 220 stirs the solder paste in the stirring housing 100. Then, the hydraulic cylinder 500 drives the push plate 300 to move along the height direction of the stirring shaft 220, so that the solder paste in the push plate 300 can be discharged through the extrusion tube 120, thereby realizing the extrusion of solder paste and avoiding residue on the inner wall of the push plate 300.

[0027] Furthermore, the pusher plate 300 is provided with a plurality of connection interfaces 310, each corresponding to a plurality of stirring shafts 220. At least a portion of each stirring shaft 220 extends into a connection interface 310, and the stirring shaft 220 and the connection interface 310 are press-fitted. Because the stirring shaft 220 extends into the connection interface 310, the stirring shaft 220 can cause the 330 to rotate synchronously during stirring.

[0028] The outer periphery of the pusher plate 300 contacts the inner wall of the stirring housing 100. This contact between the outer periphery of the pusher plate 300 and the inner wall of the stirring housing 100 prevents solder paste residue from remaining on the inner wall of the stirring housing 100. A filling port 110 is provided at the top of the stirring housing 100 for adding solder paste.

[0029] The bottom of the stirring housing 100 is provided with an extrusion tube 120 for discharging solder paste, and a solenoid valve is provided on the extrusion tube 120. A sealing cap 320 is threadedly connected to the push plate 300. Through the sealing cap 320 and the filling port 110, solder paste can enter the stirring housing 100 below the push plate 300.

[0030] Furthermore, a hydraulic cylinder 500 is provided on the push plate 300, and an electromagnetic chuck 400 is fixed to the telescopic end of the hydraulic cylinder 500. The electromagnetic chuck 400 is used for magnetic connection with the push plate 300. The push plate 300 is made of a magnetically conductive material. For example, the push plate 300 can be made of ferrous material to facilitate the connection between the electromagnetic chuck 400 and the push plate 300. Specifically, during the stirring process, the electromagnetic chuck 400 is disengaged from the push plate 300 to avoid restricting the rotation of the push plate 300. When it is necessary to drive the push plate 300 to move along the stirring shaft 220, it is magnetically connected to the push plate 300 via the electromagnetic chuck 400, and then the hydraulic cylinder 500 drives the push plate 300 to move, thereby extruding the solder paste inside the stirring housing 100. It should be noted that during the extrusion process, the extrusion tube 120 is in an open state, that is, the solenoid valve is in an open state, so that the solder paste can be extruded smoothly.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above specific embodiments are merely one or more preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A solder paste mixer, characterized in that, The device includes a push plate (300) and a stirring mechanism. The stirring mechanism includes a drive motor (200), a turntable (210), and stirring shafts (220). The turntable (210) is located at the bottom inner part of the push plate (300). The drive motor (200) is fixed to the bottom of the push plate (300), and its output shaft is connected to the center of the turntable (210). Multiple stirring shafts (220) are provided, and multiple stirring shafts (220) are evenly fixed on the upper surface of the turntable (210). When the stirring mechanism is working, the push plate (300) rotates synchronously. It also includes a hydraulic cylinder (500) for driving the pusher plate (300) to move along the height direction of the stirring shaft (220).

2. The solder paste mixer according to claim 1, characterized in that, The push plate (300) is provided with a plurality of connection interfaces (310), and the plurality of connection interfaces (310) correspond one-to-one with the plurality of stirring shafts (220).

3. The solder paste mixer according to claim 2, characterized in that, At least a portion of the stirring shaft (220) extends into the connection interface (310), and the stirring shaft (220) is interference-fitted with the connection interface (310).

4. The solder paste mixer according to claim 1, characterized in that, It also includes a stirring shell (100), the outer periphery of which is in contact with the inner wall of the stirring shell (100).

5. The solder paste mixer according to claim 1, characterized in that, A hydraulic cylinder (500) is provided on the push plate (300), and an electromagnetic chuck (400) is fixed to the telescopic end of the hydraulic cylinder (500). The electromagnetic chuck (400) is used to magnetically connect with the push plate (300).

6. The solder paste mixer according to claim 4, characterized in that, The top of the stirring housing (100) is provided with a filling port (110) for feeding solder paste.

7. The solder paste mixer according to claim 4, characterized in that, The bottom of the stirring shell (100) is provided with an extrusion tube (120), which is used to discharge solder paste, and a solenoid valve is provided on the extrusion tube (120).

8. The solder paste mixer according to claim 1, characterized in that, The push plate (300) is made of magnetic material.

9. The solder paste mixer according to claim 1, characterized in that, A sealing cap (320) is threadedly connected to the push plate (300).

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