CN106252056A - A kind of integrated inductor manufacturing method - Google Patents

Abstract

The present invention discloses an integrated inductor manufacturing method, which includes the following steps: 1. Prepare a coil and a mold, the coil is formed by winding, and then the coil is subjected to a foot reduction process; 2. Add a powdered metal composite to the bottom of the mold, and press the metal composite flat; 3. Place the coil on the metal composite at the bottom of the mold, and position it, with the coil centered; 4. Add the powdered metal composite to the mold again; 5. Cold press molding; 6. Hot press molding. The method of the present invention is very clever, which can reduce production costs, improve production efficiency, and at the same time improve the yield rate and quality of finished products.

Description

A kind of integrated inductor manufacturing method

technical field

The invention relates to an integrated inductor manufacturing method.

Background technique

One-piece inductors are widely used due to their superior performance. The existing one-piece inductor manufacturing method is generally to put a T-shaped bottom core in the mold, then put the coil, and then fill it with powder and press it into shape. This method The quality of outsourced cores is difficult to control, and the cost of self-produced cores is relatively high. At the same time, it is difficult to control the quality of the combination of the cores and the powder after they are pressed and formed, resulting in manufacturing The quality of the produced inductance is difficult to control. It can be seen that the existing integrated inductor manufacturing method has defects. Therefore, the present invention provides a complete integrated inductor manufacturing method to solve the above problems.

Contents of the invention

In order to solve the above problems, the present invention provides an integrated inductor manufacturing method.

The technical solution adopted by the present invention to solve its technical problems is:

A method for manufacturing an integrated inductor includes the following steps:

1. Prepare the coil and mold;

2. Add the metal compound in powder form to the bottom of the mold, and press the metal compound flat;

3. Place the coil on the metal compound at the bottom of the mold and position it;

4. Add powdered metal compound to the mold again;

5. Cold pressing;

6. Thermoforming.

The second step also includes a preheating step, heating and softening the metal composite after the metal composite is flattened, so that the coil part is immersed in the metal composite at the bottom of the mold.

The thickness of the metal compound where the coil sinks into the bottom of the mold is 1/4-1/3 of the thickness of the coil.

The coils in the first step are formed by winding wires, and after the formation, the coils are processed.

In the step three, the coil is centered.

The number of molds is provided with several, and each mold includes a middle mold and a lower punch group, and the mold is arranged on a circular conveyor belt. Step 2 is completed by the first powder filling mechanism and a flattening mechanism. Step 3 is completed by a manipulator. Step 4 is completed through the second powder filling mechanism, step 5 is completed through the cold pressing mechanism, and step 6 is completed through the hot pressing mechanism. Both the cold pressing mechanism and the hot pressing mechanism are equipped with an upper punching group that cooperates with the middle mold and the lower punching group. The first powder filling mechanism, the flattening mechanism, the manipulator, the second powder filling mechanism, and the cold pressing mechanism are arranged on the side of the circular conveyor belt in parallel to perform corresponding action processing on the passing mold. After the mold passes through the cold pressing mechanism, it punches down The group continues to move with the circular conveyor belt. The middle mold and the products in the middle mold enter the hot pressing mechanism for hot pressing. After the hot pressing mechanism is finished, the finished product is taken out, and the middle mold returns to the lower punching group on the circulating conveyor belt to form a new fit.

The beneficial effects of the present invention are: the present invention firstly adds a powdered metal compound in the mold and compacts it, then puts the coil and positions it, adds the powdered metal compound again and compacts it, and then cools it. Press molding, and finally hot pressing molding, so as to realize the coherent manufacturing of integrated inductors. Through step 2, a layer of bottom metal composite is formed, and finally the metal composite connected to the upper part is pressed and formed. Compared with the existing manufacturing process, the bottom core can be omitted. The production can reduce the occurrence of one-time quality problems and reduce the purchase of production equipment. At the same time, the periphery of the coil is filled with uniform powdered metal composites to facilitate the later pressing quality, so the quality of the finished product is extremely high. It can be seen that the method of the present invention is very ingenious, can reduce production costs, improve production efficiency, and simultaneously improve yield and quality of finished products.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

Fig. 1 is a schematic flow chart of the principle of the present invention.

detailed description

Referring to Fig. 1, the present invention is an integrated inductance manufacturing method comprising the following steps:

1. Prepare the coil and mold, the coil is formed by winding, and the foot is reduced after the formation;

2. Add the metal compound in powder form to the bottom of the mold, and press the metal compound flat;

3. Place the coil on the metal compound at the bottom of the mold and position it so that the coil is centered;

4. Add powdered metal compound to the mold again;

5. Cold pressing;

6. Thermoforming.

The present invention first adds a powdery metal compound into the mold and compacts it, then puts the coil and positions it, adds the powdered metal compound again and compacts it, then cold presses it, and finally hot presses it. In this way, the coherent manufacturing of the integrated inductor is realized. A layer of bottom metal composite is formed through step 2, and finally the metal composite connected to the upper part is pressed and formed. Compared with the existing manufacturing process, the production of the bottom core can be omitted, which can reduce one time The occurrence of quality problems reduces the purchase of production equipment. At the same time, the periphery of the coil is filled with uniform powdered metal composites to facilitate the later pressing quality, so the quality of the finished product is extremely high. It can be seen that the method of the present invention is very ingenious, can reduce production costs, improve production efficiency, and simultaneously improve yield and quality of finished products.

Step 2 also includes a preheating step, heating and softening the metal composite after the metal composite is flattened, so that the coil part is immersed in the metal composite at the bottom of the mold; 1/4-1/3. In this way, the coil can be positioned conveniently.

As shown in the figure, there are several molds, each mold includes a middle mold and a lower punch group, and the mold is set on a circular conveyor belt. Step 2 is completed by the first powder filling mechanism and flattening mechanism. Step 3 It is completed by manipulator, step four is completed by the second powder filling mechanism, step five is completed by cold pressing mechanism, and step six is completed by hot pressing mechanism. The upper punching group, the first powder filling mechanism, the flattening mechanism, the manipulator, the second powder filling mechanism, and the cold pressing mechanism are arranged in parallel on the side of the circular conveyor belt to perform corresponding action processing on the passing mold. After the mold is cold pressed After the mechanism, the lower punching group continues to move with the circular conveyor belt. The middle mold and the products in the middle mold enter the hot pressing mechanism for hot pressing. After being processed by the hot pressing mechanism, the finished product is taken out, and the middle mold returns to the lower punching group on the circulating conveyor belt re-form the fit. Such an assembly line manufacturing method can greatly improve production efficiency. The specific actions are as follows. When the mold moves to the first powder filling mechanism, the powder filling action is completed, and then it moves to the flattening mechanism to complete the flattening of the metal compound on the bottom layer, and then moves Put the coil into the mold at the manipulator, and then move to the second powder filling mechanism to complete the second powder filling action, and then move to the cold pressing mechanism to complete the cold pressing. The lower punching group continues to move with the circular conveyor belt, and the middle mold And the product in the middle mold enters the hot pressing mechanism for hot pressing. After the hot pressing mechanism is finished, the finished product is taken out, and the middle mold returns to the lower punching group on the circular conveyor belt to form a new fit. The work efficiency is very high.

The above-mentioned embodiments are only preferred versions of the present invention, and the present invention also has other embodiments. Those skilled in the art can also make equivalent modifications or replacements without departing from the spirit of the present invention, and these equivalent modifications or replacements are all included within the scope set by the claims of the present application.

Claims (6)

1. an integrated inductor manufacture method, it is characterised in that comprise the following steps:

One, coil, mould are prepared；

Two, add the metal composite in powder toward mold bottom, and metal composite is flattened；

Three, place the coil on the metal composite of mold bottom, and position；

Four, again in mould, the metal composite in powder is added；

Five, cold moudling；

Six, hot-forming.

2. a kind of integrated inductor manufacture method as claimed in claim 1, it is characterised in that described step 2 also includes that is pre- Hot step, metal composite be driven plain whole after to metal composite thermoplastic, in order to coiler part is absorbed in mold bottom In metal composite.

3. a kind of integrated inductor manufacture method as claimed in claim 2, it is characterised in that described coil is absorbed in mold bottom The 1/4-1/3 that thickness is coil thickness of metal composite.

4. a kind of integrated inductor manufacture method as claimed in claim 1, it is characterised in that the coil in described step one leads to Cross coiling to be formed, carry out subtracting foot after formation and process.

5. a kind of integrated inductor manufacture method as claimed in claim 1, it is characterised in that described step 3 coil is placed in the middle Arrange.

6. a kind of integrated inductor manufacture method as claimed in claim 1, it is characterised in that if described number of molds is provided with Dry, each mould includes middle mold and undershoot group, and mould is arranged on an endless apron, and step 2 passes through the first powder filler structure Completing with flattening mechanism, step 3 is completed by mechanical hand, and step 4 is completed by the second powder filler structure, and step 5 is by colding pressing Mechanism completes, and step 6 is completed by hot pressing mechanism, cold pressing mechanism and hot pressing mechanism is all provided with and assembles with middle mold and undershoot Close upper punch group, the first powder filler structure, flatten mechanism, mechanical hand, the second powder filler structure, cold pressing mechanism parallel be arranged on circulation defeated Sending band side, so that the mould passed through to carry out the action process of correspondence, mould is after mechanism of colding pressing, and undershoot group continues to follow Endless apron moves, and in middle mold and middle mold, product entrance hot pressing mechanism carries out hot pressing, finished product after hot pressing mechanism has processed Taking out, middle mold returns to re-form cooperation in the undershoot group on endless apron.