Automatic dispensing machine for inductors

Abstract

The utility model discloses an automatic point gum machine for inductor, including base, Y axis servo lead screw module, bracket, X axis servo lead screw module, Z axis servo lead screw module and gum gun, the bracket front side is equipped with two groups of inductor positioning mechanism, and each inductor positioning mechanism includes two locating rack, and every locating rack is equipped with installing shaft and locating plate, the inside of locating plate is penetrated with negative pressure pipe, and this negative pressure pipe is connected with air pump and gas collecting cap through three -way solenoid valve, the gas collecting cap is equipped with shunt cavity and four branch channels in, the periphery of locating plate all is equipped with hollow limiting board. The utility model discloses when the air pump is communicated negative pressure pipe through three -way solenoid valve, can adsorb and fix inductor skeleton, avoid the damage caused by mechanical clamping, and when the air pump is communicated limiting board through three -way solenoid valve, and the airflow that blows out from limiting board can effectively remove welding slag or dust before gumming, and accelerates glue solidification after gumming.

Description

Technical Field

[0001] This utility model relates to the field of inductor processing technology, and in particular to an automatic dispensing machine for inductors. Background Technology

[0002] An inductor has a structure similar to a transformer, but it has only one winding with a coil wound on it. In the production of inductors, most manufacturers use fully automatic dispensing machines to apply glue to the inductor. By applying glue around the connection between the coil and the frame, the coil is fixed to the frame, which improves the mechanical strength of the inductor coil.

[0003] Traditional dispensing machines require fixing the inductor frame, but the inductor frame has a delicate and fragile structure, and mechanical clamping can easily cause deformation or scratches. At the same time, debris or dust can easily remain at the dispensing location (such as the base of the pins), affecting the adhesion strength of the adhesive. After dispensing, it is necessary to wait for the adhesive to cure naturally, resulting in low production efficiency. Although there are solutions in the existing technology that use negative pressure adsorption to fix the inductor, the function is limited and cannot simultaneously solve the problems of cleaning before dispensing and rapid drying after dispensing.

[0004] To address this issue, we propose an automatic dispensing machine for inductors. Utility Model Content

[0005] The purpose of this invention is to provide an automatic dispensing machine for inductors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic dispensing machine for inductors includes a base, a Y-axis servo screw module, a bracket, an X-axis servo screw module, a Z-axis servo screw module, and a dispensing gun. Two sets of inductor positioning mechanisms are mounted on the front of the bracket, and a rotating mechanism is provided on the rear of the bracket corresponding to each set of inductor positioning mechanisms. Each set of inductor positioning mechanisms includes two positioning frames, each including a mounting shaft and a positioning plate. A negative pressure pipe runs through the interior of the positioning plate, and this negative pressure pipe is connected to an air pump and a gas collection hood via a three-way solenoid valve. The gas collection hood has a flow distribution chamber and four branch channels. Hollow limiting plates are installed around the positioning plates, and each limiting plate has an air vent on the side closest to the positioning plate. The four limiting plates are connected to the four branch channels via four air supply pipes.

[0008] In a further embodiment, a pair of studs are fixed to the back of the positioning plate, a boss is fixed to the outer wall of the negative pressure pipe, the positioning plate is close to the boss, and a nut is screwed onto one end of the studs that passes through the back side of the boss.

[0009] In a further embodiment, a perforated flow equalization plate is installed at the front end of the negative pressure pipe, and a pressure sensor is installed inside the negative pressure pipe.

[0010] In a further embodiment, the gas supply pipe consists of a flexible hose fixedly connected to the gas collection hood and a rigid pipe fixedly connected to the limiting plate, and the flexible hose and the rigid pipe are tightly fitted together.

[0011] In a further embodiment, both ends of each limiting plate protrude towards the front of the positioning plate, and the side of the limiting plate closest to the positioning plate adopts an outwardly inclined slope structure.

[0012] In a further embodiment, the rotating mechanism includes a pair of gears and a cylinder respectively fixed to the tail ends of two mounting shafts. The two gears mesh with a rack, and a connecting frame is fixed under the rack. The connecting frame is connected to the output shaft of the cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention connects an air pump, a negative pressure pipe, and a limiting plate via a three-way solenoid valve. When the air pump is connected to the negative pressure pipe through the three-way solenoid valve, a negative pressure adsorption is formed to fix the inductor frame and avoid damage caused by mechanical clamping. When the air pump is connected to the limiting plate through the three-way solenoid valve, the airflow blows from the inclined surface of the limiting plate to the root of the inductor pins, which can effectively remove solder slag or dust before dispensing and ensure the bonding strength of the adhesive. After dispensing, the airflow can be used to accelerate the curing of the adhesive, which helps to improve production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0016] Figure 2 A schematic diagram of the front view of the bracket and the positioning mechanism for the two sets of inductors of this utility model.

[0017] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 4 A schematic diagram of the rear view of the bracket and the positioning mechanism for the two sets of inductors of this utility model after installation;

[0019] Figure 5 This is a schematic diagram of the semi-sectional front view of the positioning frame of this utility model;

[0020] Figure 6 This is a schematic diagram of the positioning frame of this utility model after a partial section view.

[0021] In the diagram: 1. Base; 2. Y-axis servo screw module; 3. Bracket; 4. X-axis servo screw module; 5. Z-axis servo screw module; 6. Dispensing gun; 7. Mounting shaft; 8. Positioning plate; 81. Stud; 9. Negative pressure pipe; 91. Flow equalization plate; 92. Boss; 10. Air pump; 11. Air collection hood; 12. Flow divider; 13. Branch channel; 14. Air supply pipe; 141. Flexible hose; 142. Rigid pipe; 15. Limiting plate; 16. Rotation mechanism; 161. Gear; 162. Rack; 163. Connecting frame; 164. Cylinder; 17. Three-way solenoid valve; 18. Air pressure sensor. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3An automatic dispensing machine for inductors includes a base 1. A bracket 3 is mounted on the base 1 via a Y-axis servo screw module 2, and two sets of inductor positioning mechanisms are mounted on the bracket 3. The two sets of inductor positioning mechanisms are arranged on the same X-axis horizontal line. An X-axis servo screw module 4 and a Z-axis servo screw module 5, which are perpendicular to each other, are also mounted on the base 1 via a gantry frame. A pair of dispensing guns 6 are suspended at the lower end of the Z-axis servo screw module 5. The aforementioned servo screw modules are all common modules in the prior art, consisting of a screw body, support base, coupling, guide rail and slider, drive system, and limit sensor.

[0026] Please see Figure 1-6 Two sets of inductor positioning mechanisms are installed on the front side of the bracket 3, allowing the operator to manipulate the other set for loading and unloading while one set is in the dispensing process, thus improving efficiency. Each set of inductor positioning mechanisms includes two positioning frames, and the distance between the two dispensing guns 6 is consistent with the distance between the two positioning frames, so as to facilitate synchronous dispensing by the two dispensing guns 6. Each positioning frame includes a mounting shaft 7 rotatably connected to the back plate of the bracket 3 and a positioning plate 8. A negative pressure tube 9 passes through the interior of the positioning plate 8. The front end of the negative pressure tube 9 is equipped with a perforated flow equalization plate 91 to improve the uniformity of the adsorption force distribution during negative pressure adsorption. The flow equalization plate 91 at the front end of the negative pressure tube 9 extends out of and is flush with the front surface of the positioning plate 8. A silicone pad layer can be added to the flow equalization plate 91 to improve the airtightness during negative pressure adsorption. The tail end of the negative pressure tube 9 is connected to the air pump 10 and the gas collection hood 11 through a three-way solenoid valve 17. Specifically, the gas collection hood 11 covers the outside of the three-way solenoid valve 17, the air pump 10, and the negative pressure tube 9. The tail end of the gas collection hood 11... Fixedly connected to the mounting shaft 7, the outlet of the air pump 10 is connected to the P port of the three-way solenoid valve 17, the A port of the three-way solenoid valve 17 is connected to the negative pressure pipe 9, and the B port of the three-way solenoid valve 17 is connected to the gas collection hood 11. A pressure sensor 18 is installed inside the negative pressure pipe 9, and the pressure sensor 18 is externally connected to a PLC controller to feed back the negative pressure value in the negative pressure pipe 9 to the PLC controller. The gas collection hood 11 has a flow divider chamber 12 inside its tail end and four branch channels 13 inside its front end. The tail end of channel 13 is connected to the diversion cavity 12. The front ends of the four branch channels 13 are respectively connected to the air supply pipes 14. Hollow limiting plates 15 are installed around the positioning plate 8. Both ends of each limiting plate 15 protrude towards the front of the positioning plate 8. The side of the limiting plate 15 near the positioning plate 8 adopts an outward inclined slope structure. An air vent is opened at the slope of each limiting plate 15. The tail ends of the four limiting plates 15 are respectively connected to the air supply pipes 14, so that an airflow passage is formed between the air collection hood 11 and the limiting plates 15.

[0027] Please see Figure 5-6To accommodate inductors of different specifications, a pair of studs 81 are fixed to the back of the positioning plate 8, and a boss 92 is fixed to the outer wall of the negative pressure pipe 9. The positioning plate 8 is close to the boss 92, and a nut is screwed onto one end of the stud 81 through the back side of the boss 92, making it easy to remove the positioning plate 8 relative to the negative pressure pipe 9. This allows for the customization of positioning plates 8 of different sizes and shapes according to different specifications of inductors. Since the limiting plate 15 is fixedly connected to the positioning plate 8, it will be disassembled along with the positioning plate 8. Therefore, the gas supply pipe 14 is composed of a flexible hose 141 fixedly connected to the gas collection hood 11 and a rigid pipe 142 fixedly connected to the limiting plate 15. The head end of the flexible hose 141 can be deformed to allow for a tight fit with the rigid pipe 142, and the flexible hose 141 and the rigid pipe 142 can also be disassembled.

[0028] Please see Figure 4 To facilitate the application of adhesive around the coil and frame of the inductor, a rotating mechanism 16 is provided on the rear side of the bracket 3 corresponding to the positioning mechanism of each group of inductors. This mechanism controls the rotation of each group of inductor positioning mechanisms to adjust the position of the adhesive being applied. Specifically, the rotating mechanism 16 includes a pair of gears 161 fixed to the tail ends of the two mounting shafts 7. The two gears 161 mesh with a rack 162, and a connecting frame 163 is fixed under the rack 162. The mechanism also includes a cylinder 164. The main body of the cylinder 164 is fixed to the back side of the back plate of the bracket 3. The connecting frame 163 is connected to the output shaft of the cylinder 164. By extending and retracting the cylinder 164, the rack 162 moves, and the rack 162 drives the gears 161 to rotate. To improve the accuracy of the rotation angle, an angle sensor can be installed on the mounting shaft 7. The angle sensor is also connected to an external PLC controller to monitor the angle of the mounting shaft 7 in real time and provide feedback to the PLC controller, which then controls the extension and retraction length of the cylinder 164.

[0029] Workflow: First, the air pump 10 uses a dual-head oil-free piston pump, which can both evacuate and pump air. Initially, the three-way solenoid valve 17 connects the negative pressure pipe 9 and the air pump 10. The inductor frame is placed on the surface of the positioning plate 8, with the limit plates 15 fastened to the four vertical corners of the inductor frame. The air pump 10 is started, and the negative pressure airflow passes through the porous flow equalization plate 91 at the front end of the negative pressure pipe 9, evenly adsorbing the inductor frame. The three-way solenoid valve 17 feeds back the negative pressure value in the negative pressure pipe 9 to the PLC controller. When the negative pressure threshold is reached, the controller controls the three-way solenoid valve 17 to switch the path, closing the negative pressure state in the negative pressure pipe 9. At this time, the air pump 10 connects to the PLC controller via the three-way solenoid valve 17. The air hood 11 is activated, and the air pump 10 is switched to the blowing state. The airflow from the air pump 10 enters the distribution chamber 12 of the air hood 11 and is distributed to four branch channels 13. The airflow is delivered to the limiting plate 15 through the air supply pipe 14 and blown out from the inner air outlet. The inclined slope of the limiting plate 15 guides the airflow to the root of the inductor pins to remove impurities. The Y-axis servo screw module 2 drives the bracket 3 to move to the programming position. The X-axis servo screw module 4 and the Z-axis servo screw module 5 drive the dispensing gun 6 to move to the programming position. Then, the rotating mechanism 16 drives the mounting shaft 7 to rotate the inductor to the dispensing angle for dispensing. After dispensing, the limiting plate 15 continues to output airflow to accelerate the air circulation around the adhesive and promote curing.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic dispensing machine for inductors, comprising a base (1), a Y-axis servo screw module (2), a bracket (3), an X-axis servo screw module (4), a Z-axis servo screw module (5), and a dispensing gun (6), wherein two sets of inductor positioning mechanisms are mounted on the front side of the bracket (3), and a rotating mechanism (16) is provided on the rear side of the bracket (3) corresponding to each set of inductor positioning mechanisms, characterized in that: Each inductor positioning mechanism includes two positioning frames. Each positioning frame includes a mounting shaft (7) and a positioning plate (8). A negative pressure pipe (9) runs through the inside of the positioning plate (8). The negative pressure pipe (9) is connected to the air pump (10) and the gas collection hood (11) through a three-way solenoid valve (17). The gas collection hood (11) has a diversion chamber (12) and four branch channels (13). Hollow limiting plates (15) are installed around the positioning plate (8). Each limiting plate (15) has an air vent on the side close to the positioning plate (8). The four limiting plates (15) are connected to the four branch channels (13) through four air supply pipes (14).

2. The automatic dispensing machine for inductors according to claim 1, characterized in that: A pair of studs (81) are fixed on the back of the positioning plate (8), and a boss (92) is fixed on the outer wall of the negative pressure pipe (9). The positioning plate (8) is close to the boss (92), and a nut is screwed onto one end of the studs (81) that passes through the back side of the boss (92).

3. The automatic dispensing machine for inductors according to claim 1, characterized in that: The front end of the negative pressure pipe (9) is equipped with a perforated flow equalization plate (91), and a pressure sensor (18) is installed inside the negative pressure pipe (9).

4. An automatic dispensing machine for inductors according to claim 1, characterized in that: The gas supply pipe (14) consists of a flexible hose (141) fixedly connected to the gas collection hood (11) and a rigid pipe (142) fixedly connected to the limiting plate (15), and the flexible hose (141) and the rigid pipe (142) are tightly connected.

5. An automatic dispensing machine for inductors according to claim 1, characterized in that: Both ends of each limiting plate (15) protrude towards the front of the positioning plate (8), and the side of the limiting plate (15) closest to the positioning plate (8) adopts an outward sloping structure.

6. An automatic dispensing machine for inductors according to claim 1, characterized in that: The rotating mechanism (16) includes a pair of gears (161) and a cylinder (164) respectively fixed to the tail ends of two mounting shafts (7). The two gears (161) mesh with a rack (162), and a connecting frame (163) is fixed under the rack (162). The connecting frame (163) is connected to the output shaft of the cylinder (164).

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