WO2022033075A1

WO2022033075A1 - Rectangular magnetic core extrusion molding mechanism of automatic rectangular magnetic core extrusion molding machine

Info

Publication number: WO2022033075A1
Application number: PCT/CN2021/089544
Authority: WO
Inventors: 张希望
Original assignee: 佛山市南海矽钢铁芯制造有限公司
Priority date: 2020-08-13
Filing date: 2021-04-25
Publication date: 2022-02-17
Also published as: CN111799085A

Abstract

A rectangular magnetic core extrusion molding mechanism of an automatic rectangular magnetic core extrusion molding machine, which consists of a magnetic core lifting/lowering mechanism and five groups of extrusion machines arranged on an X axis, a Y axis, and a Z axis in a rectangular coordinate system taking the center O of a magnetic core as an origin. The five groups of extrusion machines have basically identical structures; each group of extrusion machines mainly consist of a first servomotor, a screw, a screw pair, a support column, an extrusion head, a screw pair sliding rail seat, and a supporting seat; the first servomotor drives the extrusion head to move forwards or backwards by means of the screw, the screw pair, and the screw pair sliding rail seat. The mechanism is simple in structure, has an accurate and reliable action, stable product quality, and high production efficiency, and is low in production cost.

Description

A rectangular magnetic core extrusion forming mechanism of a rectangular magnetic core automatic extrusion forming machine

technical field

The invention relates to the technical field of automatic extrusion molding of rectangular magnetic cores, in particular to a rectangular magnetic core extrusion molding mechanism of an automatic rectangular magnetic core extrusion molding machine.

Background technique

The existing small rectangular magnetic cores are widely used in electronic communication equipment, electronic power control system and industrial control equipment. These rectangular magnetic cores are small in size and weigh in the range of 0.2 to 3 kg/piece. In the existing small rectangular magnetic core, a rectangular core mold is used as the tire mold and a notch is formed, and the silicon steel strip is inserted into the notch, and the core mold is driven by a motor to rotate, and the silicon steel strip is wound on the core mold. After reaching the preset thickness, the silicon steel strip is cut and welded firmly, and then the core mold is removed together with the rectangular magnetic core. Since the core mold needs to be loaded and unloaded manually, it can only be operated by a single person and a single machine. The fixing of the silicon steel strip also needs to be manually operated. Moreover, because the head of the silicon steel strip adopts the hook method to hang the belt, after the rectangular magnetic core is wound, it needs to be Only by manually cutting off the hook can the rectangular magnetic core and the core mold be separated, which is time-consuming and labor-intensive and wastes materials. It can be seen that this winding forming method has low production efficiency, unstable product quality and high production cost.

In order to overcome the above-mentioned defects, we can consider designing an automatic extrusion molding machine for rectangular magnetic cores, prefabricating circular or elliptical magnetic cores for this machine. The machine is divided into the following steps: The first step is to store the Shape or elliptical magnetic cores and send them to the first stage of the next step one by one; the second step is to send the cores from the 1# station of the first stage to the 3rd stage of the second stage. # station, and lowered to the bottom through the up and down lifting mechanism; then insert the third step to extrude the circular or elliptical magnetic core into an approximately rectangular magnetic core; the fourth step is to send the rectangular combined core mold into the The inner cavity of the approximately rectangular magnetic core; the fifth step is to extrude the approximately rectangular magnetic core into a rectangular magnetic core; the sixth step is to raise the rectangular magnetic core with the combined core mold to the same level as the first bearing table On the horizontal plane, it is sent from the 3# station to the 5# station and handed over to the next process. By designing a variety of different mechanisms, together with the conventional whole machine program controller PLC, electric components, and pneumatic components, it becomes a rectangular magnetic core automatic extrusion molding machine that can complete the above six steps.

technical problem

The technical problem to be solved by the present invention is to provide a rectangular magnetic core extrusion molding mechanism for a rectangular magnetic core automatic extrusion molding machine, through which the conventional program controller PLC can make A circular or elliptical magnetic core is extruded into an approximately rectangular magnetic core, and then a matching rectangular combined core mold is placed in the inner cavity of the approximately rectangular magnetic core, and extruded into a rectangular magnetic core. The mechanism is simple in structure, accurate and reliable in action, stable in product quality, high in production efficiency and low in production cost.

technical solutions

The technical solution proposed by the present invention is as follows:

A rectangular magnetic core extrusion molding mechanism of a rectangular magnetic core automatic extrusion molding machine is provided with a magnetic core up and down lifting mechanism on a base, and the magnetic core up and down lifting mechanism includes a support plate fixed on the base, a material bearing table, a second servo motor, a number of support columns, and a number of guide columns, the second servo motor is fixedly connected to the support plate through a screw rod, the guide column is suspended through the support plate, and the upper end is fixed to the bottom surface of the bearing platform connection, the upper end of the support column is fixedly connected with the bottom surface of the bearing table, the lower end of the support column is in contact with the support plate, and the magnetic core is placed in the center of the bearing platform; The positive X axis and the negative X axis of the system are respectively provided with the third extrusion unit and the fifth extrusion unit that are equidistant from the origin and opposite to each other, and there are distances on the positive Y axis and the negative Y axis respectively. The 4th and 2nd extrusion units whose origins are equidistant and opposite to each other are provided with a vertical first extrusion unit on the positive z-axis, and the first extrusion unit is fixed on the machine base through a support frame On the top, the second extrusion unit, the third extrusion unit, the fourth extrusion unit and the fifth extrusion unit are respectively fixed on the base; the first extrusion unit, the second extrusion unit, the third extrusion unit The extrusion unit, the fourth extrusion unit and the fifth extrusion unit are all of the same structure. The extrusion unit is mainly composed of the first servo motor, screw, screw pair, support, extrusion head, screw It is composed of a slide rail seat and a support seat, and the first servo motor drives the extrusion head to move forward or backward through the lead screw, the lead screw pair, the support column and the lead screw pair slide rail seat.

The outer end face of the extrusion head of the extrusion unit is flat. The center line of the extrusion head of the third extrusion group and the center line of the extrusion head of the fifth extrusion group coincide with the X axis of the rectangular coordinate system. The center line of the extrusion head of the second extrusion group and the center line of the extrusion head of the fourth extrusion group coincide with the Y axis of the Cartesian coordinate system. The center line of the extrusion head of the first extrusion unit coincides with the Z-axis of the rectangular coordinate system. At this time, the outer end face of the extrusion head is in line with the first rectangular composite core mold installed in the inner cavity of the magnetic core. Corresponds to the central part of the core module.

beneficial effect

Compared with the prior art, the present invention has the following remarkable effects:

The rectangular magnetic core extrusion molding mechanism of the rectangular magnetic core automatic extrusion molding machine of the present invention is to lower the circular or elliptical magnetic core for a certain distance through the up and down lifting mechanism of the magnetic core, and then, through the second, third, fourth, fifth At the same time, the extruding unit extrudes the circular or elliptical magnetic core into an approximately rectangular magnetic core; after that, the fourth step is inserted, and the rectangular combined core mold is sent into the inner cavity of the approximately rectangular magnetic core; then, through the first step 1, 2, 3, 4, and 5 extrusion units simultaneously extrude the approximately rectangular magnetic core and the rectangular combined core die into a rectangular magnetic core. The 1st to 5th extrusion units used in this mechanism are basically the same in structure. It can be seen that this mechanism has simple structure, simple and smooth arrangement, and low manufacturing cost. Because of its precise and reliable action, the product quality is stable and the production efficiency is high. Of course, to complete the extrusion molding of the magnetic core in the above two steps, it is also necessary to rely on the control of a conventional program controller PLC.

Description of drawings

FIG. 1 is a schematic structural diagram of a rectangular magnetic core extrusion molding mechanism of a rectangular magnetic core automatic extrusion molding machine according to the present invention.

FIG. 2 is a schematic structural diagram of any one of the five groups of extrusion units shown in FIG. 1 .

FIG. 3 is a schematic structural diagram of the up-and-down mechanism of the magnetic core supporting the magnetic core 3 shown in FIG. 1 .

FIG. 4 is a schematic diagram of the combined structure of the magnetic core 3 shown in FIG. 1 and a rectangular combined core mold placed in its inner cavity.

Description of the symbols in the figure: 1. The first extrusion unit; 2. The second extrusion unit; 3. The magnetic core; 4. The third extrusion unit; 5. The machine base; 6. The fourth extrusion unit; 7. The first 5. Extrusion unit; 8. Rectangular combined core die; 8-1. The first core block; 8-2. The second core block; 8-3. The third core block; 9. Support frame; 10. The first 1 Servo motor; 11. Lead screw; 12. Lead screw pair; 13. Extrusion head; 14. Lead screw pair slide rail seat; 15. Support seat; ; 19. Screw payment; 20. The second servo motor; 21. Guide post; 22. Post.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be further elaborated by the following examples.

Referring to Figures 1 to 4, a rectangular magnetic core extrusion molding mechanism of a rectangular magnetic core automatic extrusion molding machine is provided on the base 5 with a magnetic core up and down lifting mechanism, and the magnetic core up and down lifting mechanism includes a The support plate 17 on the machine base 5, the material receiving table 16, the second servo motor 20, a number of support columns 18, and a number of guide columns 21, the second servo motor 20 is fixedly connected to the support plate 17 through the screw pair 19 , the guide column 21 is suspended through the support plate 17 and the upper end is fixedly connected with the bottom surface of the material receiving table 16 , the upper end of the supporting column 18 is fixedly connected with the bottom surface of the material receiving table 16 , and the lower end of the supporting column 18 is in contact with the supporting plate 17 Connection, the magnetic core 3 is placed in the center of the bearing platform 16; the positive X-axis and the negative X-axis of the Cartesian coordinate system with the center O of the magnetic core 3 as the origin are respectively provided with equal distances from the origin and opposite The 3rd extrusion unit 4 and the 5th extrusion unit 7 facing each other are respectively provided with the 4th extrusion unit 6 and the second extrusion unit which are equidistant from the origin and opposite on the positive Y-axis and the negative Y-axis. 2. There is a vertical first extrusion unit 1 on the positive z-axis, the first extrusion unit 1 is fixed on the base 5 through the support frame 9, the second extrusion unit 2, the third extrusion unit 1 The extrusion unit 4, the fourth extrusion unit 6 and the fifth extrusion unit 7 are respectively fixed on the base 5; the first extrusion unit 1, the second extrusion unit 2, the third extrusion unit 4, the 4. The extrusion unit 6 and the fifth extrusion unit 7 are both of the same structure. The lead screw pair slide rail seat 14 and the support base 15 are composed. The first servo motor 10 drives the extrusion head 13 forward or backward through the lead screw pair 11 , the lead screw pair 12 , the support column 22 and the lead screw pair slide rail seat 14 .

The outer end surface of the extrusion head 13 of the extrusion unit is flat. The center line of the extrusion head 13 of the third extrusion group 4 and the center line of the extrusion head 13 of the fifth extrusion group 7 coincide with the X axis of the rectangular coordinate system. The center line of the extrusion head 13 of the second extrusion group 2 and the center line of the extrusion head 13 of the fourth extrusion group 6 coincide with the Y axis of the rectangular coordinate system. The center line of the extrusion head 13 of the first extrusion unit 1 coincides with the Z axis of the rectangular coordinate system. At this time, the outer end face of the extrusion head 13 is connected to the rectangular composite core inserted into the inner cavity of the magnetic core 3. The center portion of the first core module 8-1 of the mold 8 corresponds to that.

Embodiments of the present invention

The working process of the rectangular magnetic core extrusion molding mechanism of the rectangular magnetic core automatic extrusion molding machine is as follows:

In this embodiment, after the workpiece magnetic core 3 is accurately placed in the material receiving table 16 of the extrusion station, the up and down lifting mechanism of the magnetic core is driven and controlled by the second servo motor 20, the material receiving table 16 is lowered to the extrusion position, and the magnetic core 3 Complete the following extrusion molding at this station.

In the first step, the 2nd, 3rd, 4th and 5th extrusion units 2, 4, 6, and 7 act simultaneously according to the first stroke preset in the program, and drive the respective extrusion heads 13 to extrude to the middle. This step can automatically correct the center position of the magnetic core 3, and at the same time, through this pre-extrusion, the inner window of the magnetic core 3 is slightly approximately rectangular, so as to facilitate the insertion of the rectangular combined core mold.

In the second step, the wedge-shaped second core module 8-2, the third core module 8-3 and the first core module 8-1 in the rectangular combined core mold 8 shown in FIG. Side by side on the X-axis, and the first core module 8-1 is displaced upward in the Y-axis direction, the combined three core modules are simultaneously placed into the inner cavity of the magnetic core 3 by a manipulator.

In the third step, the first extrusion unit 1 pushes its extrusion head 13 to press down the first core module 8-1 according to the preset stroke of the program, and the second core module 8-2 and the third core module 8-3 are Spread, the distance of spread is determined by the size of the first module core 8-1, the second core module 8-2, and the third core module 8-3. Press the extrusion head of the first extrusion unit 1 to press the first core module. At the same time as the 1-core module 8-1, the 2nd, 3rd, 4th, and 5th extrusion units 2, 4, 6, and 7 act simultaneously according to the second stroke preset in the program, driving the 2nd, 3rd, The extrusion heads of the 4th and 5th extrusion units 2, 4, 6, and 7 continue to extrude in the middle to extrude the approximately rectangular magnetic core into a rectangular magnetic core of the required size.

The first core module 8-1 is pressed in and the magnetic core 3 is opened by the second and third core modules 8-2 and 8-3 so that the inner window of the magnetic core 3 can meet the product design requirements. When designing and manufacturing the first core module 8 - 1 , the circumference of the second core module 8 - 2 and the third core module 8 - 3 after splicing is consistent with the circumference of the inner cavity of the magnetic core 3 . Each extrusion unit is servo-driven to precisely control the extrusion size. After the extrusion molding is completed, the material receiving table 16 is raised by the second servo motor 20 to drive the material receiving table 16, and the magnetic core feeding mechanism provided separately removes the finished product, and at the same time moves into the next group of magnetic cores to be extruded for the next step. A cycle job. Each extrusion unit is driven by a servo motor, so its movements are programmable and controlled to make the extrusion size accurate and precise.

Claims

A rectangular magnetic core extrusion molding mechanism of a rectangular magnetic core automatic extrusion molding machine, characterized in that: a magnetic core up and down lifting mechanism is provided on the base (5), and the magnetic core up and down lifting mechanism includes a magnetic core fixed on the machine base. (5) on the support plate (17), the material receiving table (16), the second servo motor (20), several support columns (18), and several guide columns (21), the second servo motor (20) ) is fixedly connected with the support plate (17) through the screw pair (19), the guide column (21) is suspended through the support plate (17) and the upper end is fixedly connected with the bottom surface of the bearing table (16), the support column (18) The upper end is fixedly connected to the bottom surface of the material receiving table (16), the lower end of the support column (18) is in contact with the supporting plate (17), and the magnetic core (3) is placed in the central position of the material receiving table (16). ; On the positive X axis and the negative X axis of the Cartesian coordinate system with the center O of the magnetic core (3) as the origin, there are respectively the third extrusion unit (4) and the fifth extrusion unit (4) and the fifth extrusion unit, which are equidistant from the origin and opposite. The press unit (7) is provided with the fourth extrusion unit (6) and the second extrusion unit (2), which are equidistant from the origin and opposite to the positive Y axis and the negative Y axis, respectively. A vertical first extrusion unit (1) is arranged on the shaft, the first extrusion unit (1) is fixed on the machine base (5) through a support frame (9), and the second extrusion unit (2) ), the third extrusion unit (4), the fourth extrusion unit (6) and the fifth extrusion unit (7) are respectively fixed on the machine base (5); the first extrusion unit (1), the The 2 extrusion unit (2), the third extrusion unit (4), the fourth extrusion unit (6) and the fifth extrusion unit (7) all use extrusion units with the same structure. The extrusion unit is mainly composed of the first extrusion unit. 1 Servo motor (10), lead screw (11), lead screw pair (12), pillar (22), extrusion head (13), lead screw pair slide rail seat (14) and support seat (15), the first 1 The servo motor (10) drives the extrusion head (13) forward or backward through the screw (11), the screw pair (12), the support (22) and the screw pair slide rail seat (14).
The rectangular magnetic core extrusion molding mechanism of the rectangular magnetic core automatic extrusion molding machine according to claim 1, characterized in that: the outer end surface of the extrusion head (13) of the extrusion unit is flat.
The rectangular magnetic core extrusion molding mechanism of the rectangular magnetic core automatic extrusion molding machine according to claim 1, characterized in that: the center line of the extrusion head (13) of the third extrusion unit (4) and the center line of the extrusion head (13) of the third extrusion unit (4). 5. The center line of the extrusion head (13) of the extrusion unit (7) coincides with the X-axis of the Cartesian coordinate system.
The rectangular magnetic core extrusion molding mechanism of the rectangular magnetic core automatic extrusion molding machine according to claim 1, characterized in that: the center line of the extrusion head (13) of the second extrusion unit (2) and the first 4. The center line of the extrusion head (13) of the extrusion unit (6) coincides with the Y-axis of the Cartesian coordinate system.
The rectangular magnetic core extrusion molding mechanism of the rectangular magnetic core automatic extrusion molding machine according to claim 1, characterized in that: the center line of the extrusion head (13) of the first extrusion unit (1) is in line with the center line of the extrusion head (13). The Z-axis of the rectangular coordinate system is coincident, and at this time, the outer end face of the extrusion head (13) and the first core module (8-1) of the rectangular composite core mold (8) loaded into the inner cavity of the magnetic core (3) Corresponding to the central part.