TWI759105B - Manufacturing method of glued laminated core - Google Patents

Abstract

The invention provides a manufacturing method of a glued laminated iron core, which comprises the following steps: a feeding step: driving a processed plate to move along a conveying path by a feeding machine, and supplying it to a stamping die; and a forming step: using stamping The mold presses the processed plate to obtain a plurality of silicon steel sheets separated from each other, and the silicon steel sheets enter into a stacking area for stacking individually. The aforesaid rubber printing step is to use a roller type rubber printing machine to perform the rubber printing action on the upper surface of the processed board, so that the processed board surface can be formed into a thin glue with good diffusivity and uniformity. A mixture of glued laminated cores with high flatness, less deterioration of iron loss and smoother magnetic circuit can be created.

Description

Manufacturing method of glued laminated core

The invention relates to the technical field of iron core manufacturing, in particular to a manufacturing method of a glued laminated iron core.

High-efficiency and energy-saving motors are the development trend of the global motor industry. In the future, the demand for low iron loss and thin silicon steel sheets will grow rapidly. However, when the thickness of the silicon steel sheet is less than 0.25mm, the traditional process of producing iron cores by riveting will encounter problems such as difficult riveting and low riveting force, and usually requires additional argon welding or laser welding to strengthen the lamination strength. Avoid the adverse effects of iron loss deterioration.

Therefore, at present, an attempt has been made to adopt a glued core structure on the market, which uses the adhesive bonding method between the silicon steel sheets to reduce the mechanical stress and interlayer short circuit problems after the silicon steel sheets are stacked and assembled, and improve the problem of iron loss deterioration.

Regarding the aforementioned adhesive gluing method, the known technical means include spraying and sticking. However, although the adhesive lamination machine core is glued by the spraying method or the sticking adhesive method, the purpose of improving the iron loss deterioration can be achieved. However, when the glue-spraying method or the adhesive-adhering method is used for the manufacturing method of the adhesive laminated iron core, both of them will have problems such as thick adhesive thickness, poor uniformity, and glue overflow, which not only affects the laminated iron The flatness of the core after bonding, and if the thickness of the adhesive is thick, the curing speed will be slow, affecting the production efficiency, which is not conducive to mass production. If the shape of the core is complex, it will also be difficult to glue. Therefore, There are still many technical problems in the implementation of the two gluing methods, which need to be overcome Clothes.

In view of the above shortcomings, the creator of the present invention believes that it is necessary to make corrections, so with years of experience in related technologies and product design and manufacturing, upholding good design concepts, research and creation for the above disadvantages, after continuous efforts, finally. A manufacturing method of a glued laminated iron core is introduced, which mainly uses a roller type glue printing machine to perform the glue printing action, so as to create a finished glued laminated iron core with a thin glue thickness, high flatness and a smooth magnetic circuit, In order to solve the problems of the existing glued laminated iron core, such as thick glue thickness, easy to overflow glue, poor uniformity, insufficient flatness, and difficult to apply complex shapes, thereby improving the excellent effect of the product.

In order to solve the above-mentioned problems and achieve the purpose of the present invention, the technical means of the present invention is achieved in this way, which is a manufacturing method of a glued laminated iron core, and the method comprises the following steps: a feeding step (A): by a feeding machine ( 10) Drive a processed plate (1) to move along a conveying path and supply it to a stamping die (20); and a forming step (B): using the above-mentioned stamping die (20) to stamp the above-mentioned processed plate (1) processing to obtain a plurality of silicon steel sheets (2) separated from each other, and the silicon steel sheets (2) are individually entered into a stacking area for stacking; it is characterized in that: between the feeding step (A) and the forming step (B), further comprising: There is a glue printing step (A1), the aforesaid glue printing step (A1) is an action of printing glue on the upper surface of the processed plate (1) by a roller glue printing machine (3).

More preferably, after the forming step (B), a heating step (C) is further included, and the aforementioned heating step (C) is to heat the stacked silicon steel sheets (2) through a heating module (4) to make the silicon steel sheet (2) heated. The adhesive (30) between each silicon steel sheet (2) is cured, and after the adhesive (30) is cured, a glued laminated iron core product (100) is completed.

More preferably, in the heating step (C), in the heating module (4) When the stacked silicon steel sheet (2) is heated, it also includes a pressurizing step (C1), and the aforementioned pressurizing step (C1) is to control the stacking silicon steel sheet (2) through a hydraulic pressure and a solenoid valve to control the cylinder ejecting device (5). ) against the bottom, and make each silicon steel sheet tightly glued during stamping.

More preferably, the forming step (B) also includes a pressure curing step (D), and the aforementioned pressure curing step (D) is controlled by a heating module (4) and a hydraulic pressure and a solenoid valve. The cylinder device (5) applies heat and pressure to the stacked silicon steel sheets (2), so that each silicon steel sheet (2) is tightly glued to each other. After the glue (30) is cured, a finished product of a glued laminated iron core is completed. (100).

More preferably, the thickness of each printing rubber of the roller type rubber printing machine (3) is 0.001 mm to 0.005 mm.

More preferably, the roller printing press (3) can transfer the glue (30) to the desired periphery of the punched shape (40) of the plate (1) to be processed.

More preferably, the roller type printing press (3) further comprises a glue supply assembly (31), a printing plate cylinder (32), a rubber cylinder (33) and a pressure cylinder (34); A glue assembly (31), which is composed of a plurality of glue supply rollers (311) abutting against the printing plate cylinder (32); the printing plate cylinder (32), which is connected with a plurality of the glue supply rollers (311) ) and the rubber cylinder (33) are in contact, and the surface of the printing plate cylinder (32) also has a print (321) corresponding to the required periphery of the punching and shearing shape (40) of the plate (1) to be processed, In addition, the printing plate cylinder (32) can attach the glue (30) on a plurality of the glue supplying rollers (311) to the printing pattern (321); the rubber cylinder (33), which is connected with the printing plate cylinder (311) 32) Abutting and being located above the plate to be processed (1), and in contact with the upper surface of the plate to be processed (1), the adhesive (30) of the print (321) can be transferred to the plate to be processed (1). Processing the required periphery of the punching and shearing shape (40) of the plate (1); the pressure roller (34), which is arranged corresponding to the upper and lower sides of the rubber roller (33), and is located under the plate (1) to be processed , and is in contact with the lower surface of the plate to be processed (1), which can drive the plate to be processed (1) to move toward a conveying path.

More preferably, the printing plate cylinder (32) can be one of the following: a relief cylinder, a gravure cylinder, a lithographic cylinder.

By the implementation of the present invention, compared with the prior art, the functions and effects that the present invention can obtain are as follows:

The first point: in the present invention, the thickness of the adhesive (30) transferred on the processed board (1) can be reduced to Within the range of 0.001mm to 0.005mm, in order to achieve the effect of thinner adhesive (30), and because the thickness of the adhesive (30) is thinner, the stacking rate of the silicon steel sheet (2) can be increased, thereby reducing the glue In addition, the thinner the thickness of the adhesive (30), the faster the heating and curing speed of the laminated iron core, so it has better production efficiency, which is beneficial to a large number of production can effectively reduce costs.

The second point: the present invention can make the adhesive (30) transferred to the surface of the plate (1) to be processed to produce better The diffusivity and uniformity are improved, so that the glued laminated iron core product (100) after the stacking and curing of the silicon steel sheets (2) can achieve dimensional accuracy such as high flatness and parallelism.

The third point: the printing plate cylinder (32) of the roller type rubber printing machine (3) of the present invention can change the position and shape of the printing rubber according to different shapes of the silicon steel sheet (2), so as to respond to the complex silicon steel sheet (2) shape, so that the present invention has good change flexibility for the shape design of the printing rubber.

1: processed board

34: Pressure Roller

2: Silicon steel sheet

4: Heating module

3: Roller type glue press

5: Hydraulic and solenoid valve control top cylinder device

31: glue supply components

10: Feeder

311: Supply roller

20: Stamping die

32: Plate cylinder

30: Adhesive

33: Rubber roller

40: Punching and shearing shape

321: print

100: Glued laminated core finished product

A: Feeding step: Drive a plate to be processed by a feeder to move along a conveying path and supply it to a stamping die

A1: Glue printing step: the action of printing glue on the upper surface of the processed board through a roller type glue printing machine

B: Forming step: use a stamping die to stamp the plate to be processed to obtain a plurality of silicon steel sheets separated from each other, and the silicon steel sheets enter into a stacking area for stacking individually

C: Heating step: heating the stacked silicon steel sheets through a heating module to solidify the adhesive between each silicon steel sheet. After the adhesive is solidified, a glued laminated core product is completed.

C1: Pressurizing step: control the top cylinder device by a hydraulic pressure and a solenoid valve to hold the stacked silicon steel sheets against the bottom, and make each silicon steel sheet tightly glued during stamping

D: Pressurized curing step: heating and pressurizing the stacked silicon steel sheets through a heating module and a hydraulic and solenoid valve control top cylinder device, so that each silicon steel sheet is tightly glued to each other, and it is completed after the adhesive is cured A glued laminated core finished product

[FIG. 1] A schematic block flow diagram of the present invention with the heating step and the pressing step.

[FIG. 2] A schematic block flow diagram of the present invention with the pressure curing step.

[FIG. 3] A schematic plan view of an embodiment of the present invention.

[ Fig. 4 ] is an enlarged schematic view of part I of Fig. 3 .

[ Fig. 5 ] is an enlarged schematic view of part II of Fig. 3 .

[Fig. 6] A schematic plan view of the finished product of the glued laminated iron core of the present invention.

[FIG. 7] The three-dimensional schematic diagram of the roller type rubber printing press of the present invention.

[FIG. 8~FIG. 10] Schematic diagrams of transferring the adhesive of the present invention to various positions on the silicon steel sheet.

In order to further understand the features, technical means, and specific goals and functions of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 6 , a manufacturing method of a glued laminated iron core is disclosed in the drawings, and the method includes the following steps: a feeding step (A): a feeder (10) drives a processed plate ( 1) move along a conveying path, and supply it to a stamping die (20); and a forming step (B): use the stamping die (20) to carry out stamping processing on the above-mentioned plate to be processed (1) to obtain a plurality of separated from each other Silicon steel sheets (2), the silicon steel sheets (2) are individually entered into a stacking area for stacking; it is characterized in that: between the feeding step (A) and the forming step (B), a glue printing step (A1) is further included, The aforesaid rubber printing step (A1) is to carry out the action of printing rubber on the upper surface of the above-mentioned processed plate (1) by a roller type rubber printing machine (3). 0.001mm to 0.005mm. Thereby, the stacking rate of the silicon steel sheet (2) can be increased, thereby reducing the deterioration of the iron loss of the glued laminated core, so as to improve the efficiency of the motor; in addition, the thinner the glue (30) is, the thinner the laminated core is. Iron core, the faster the curing speed, so it has better production efficiency, which is conducive to mass production and can effectively reduce costs.

Secondly, the adhesive (30) transferred to the surface of the plate (1) to be processed can be better diffused by transferring the adhesive (30) in a planar manner through the roller type printing press (3). Sex and uniformity Therefore, the glued laminated iron core product (100) after the silicon steel sheet (2) is stacked and solidified can achieve dimensional accuracy such as high flatness and parallelism.

Furthermore, in the forming step (B), a heating step (C) may be further performed at the same time, in which a heating module (4) is used to heat the stacked silicon steel sheets (2), so that each silicon steel sheet is heated. The adhesive (30) between the sheets (2) is cured to increase the fixing effect of the adhesive (30). After the adhesive (30) is cured, a glued laminated core product (100) is completed.

Also, in the heating step (C), when the stacked silicon steel sheets (2) are heated by the heating module (4), there is also a pressing step (C1), the aforementioned pressing step (C1) ) is controlled by a hydraulic and electromagnetic valve to control the top cylinder device (5) to hold the stacked silicon steel sheets (2) against the bottom, so that the glue of each silicon steel sheet (2) spreads evenly, achieves the minimum thickness and makes the sheet and the sheet more quickly. The sheets are tightly glued.

In addition, the above-mentioned heating step and pressing step can also be carried out at the same time. During the forming step (B) in the mold, a pressurizing and curing step (D) is further applied, and the pressurizing and curing step (D) is used to complete the stacking. The silicon steel sheet (2) is moved out of the stacking area, and then a heating module (4) and a hydraulic and solenoid valve control top cylinder device (5) are used to pressurize and heat the stacked silicon steel sheet (2), so that the Each silicon steel sheet (2) is tightly glued to each other, and after the glue (30) reaches the final curing strength, it is taken out to complete a glued laminated iron core product (100). The size of the pressing pressure, the heating temperature and the pressing and heating time are determined according to the conditions such as the material type of the adhesive used.

As shown in Figures 7 to 10, the roller type rubber press (3) comprises a glue supply assembly (31), a printing plate cylinder (32), a rubber cylinder (33) and a pressure cylinder (34), The components are described in order below.

A glue supply assembly (31) is composed of a plurality of glue supply rollers (311) abutting against the printing plate cylinder (32).

A printing plate cylinder (32), which is in contact with a plurality of the rubber supply rollers (311) and the rubber cylinder (33), and the surface of the printing plate cylinder (32) also has punching shears corresponding to the plate (1) to be processed The printing pattern (321) is arranged around the outer periphery of the shape (40), and the printing plate cylinder (32) can attach the glue (30) on the plurality of glue supply rollers (311) to the printing pattern (321).

A rubber cylinder (33), which is in contact with the printing plate cylinder (32), is located above the plate to be processed (1), and is in contact with the upper surface of the plate to be processed (1), so that the printing pattern (321) can be ) glue (30) is transferred to the outer periphery of the punching and shearing shape (40) of the plate (1) to be processed.

A pressure roller (34), which is arranged corresponding to the top and bottom of the rubber roller (33), is located under the plate to be processed (1), and is in contact with the lower surface of the plate to be processed (1), so as to drive the plate to be processed (1). The processing plate (1) moves towards a conveying path.

Wherein, when the roller type rubber printing press (3) is applied to the plate to be processed (1) to perform the transfer step, firstly, the glue (30) is filled in the plurality of the glue supplying rollers of the glue supplying assembly (31). (311), and transfer to the print (321) of the plate cylinder (32) by a plurality of the glue supply rollers (311), where the print (321) already exists on the plate cylinder (32), and is arranged corresponding to the desired periphery of the punched shape (40) of the plate (1) to be processed, and then the print (321) with the adhesive (30) attached is transferred to the On the rubber roller (33), finally transfer from the rubber roller (33) to the desired periphery of the punching and shearing shape (40) of the plate (1) to be processed, thereby forming a surface covering the plate (1) to be processed. The glue (30) on the upper surface completes the action of printing the rubber, and in this way, the " rubber printing step" of the present invention can be implemented. It should be noted here that, during printing, the plate to be processed (1) is clamped between the rubber roller (33) and the pressure roller (34) for crimping, thereby driving the plate to be processed. (1) Moving toward a conveying path.

Next, please refer to FIG. 8 , FIG. 9 and FIG. 10 , it is further disclosed that the roller printing machine ( 3 ) transfers the adhesive ( 30 ) to the punching shape of the processed plate ( 1 ). (40) required Around, an adhesive (30) covering the upper surface of the processed plate (1) is formed, and the roller type rubber printing machine (3) can change the printing rubber position, the printing rubber according to the shape of different silicon steel sheets (2). The proportion of the shape and the range of the printing rubber is adapted to the complex shape of the silicon steel sheet, so that the present invention has good flexibility for changing the shape of the printing rubber.

Furthermore, it should be noted that the printing plate cylinder (32) can be a relief cylinder, a gravure cylinder or a lithographic cylinder, one of which, of course, the printing plate cylinder of the present invention is not limited to this, and the foregoing embodiments are only for the purpose of It is just an example for the convenience of description, but no matter what kind of printing plate cylinder, as long as the creative intention is equal to the function and function of the printing plate cylinder of the present invention, its changed or modified design should be included within the scope of the patent of the present invention.

The methods, functions and effects of the present invention have been described in detail above; however, the above descriptions are preferred embodiments of the present invention and are not intended to limit the scope. Therefore, all modifications that are consistent with the intent of the present invention are within the scope of equal effects. All should be included within the scope of the patent of the present invention.

1: processed board

3: Roller type glue press

5: Hydraulic and solenoid valve control top cylinder device

10: Feeder

20: Stamping die

100: Glued laminated core finished product

Claims (4)

A method for manufacturing a glued laminated iron core, the method comprising the following steps: a feeding step (A): driving a processed plate (1) to move along a conveying path by a feeding machine (10), and supplying it to a stamping die ( 20); And a forming step (B): utilize the above-mentioned stamping die (20) to carry out stamping processing on the above-mentioned processed plate (1) to obtain a plurality of silicon steel sheets (2) separated from each other, and the silicon steel sheets (2) enter individually. Stacking in a stacking area; characterized in that: between the feeding step (A) and the forming step (B), there is also a rubber printing step (A1), and the aforementioned rubber printing step (A1) is performed by a roller type rubber printing The machine (3) performs the action of printing glue on the upper surface of the above-mentioned plate to be processed (1); the forming step (B) also includes a heating step (C) after the forming step (C), and the aforementioned heating step (C) is performed by a heating module. (4) heating the stacked silicon steel sheets (2) to cure the adhesive (30) between each silicon steel sheet (2), and after the adhesive (30) is cured, a glued laminated iron core is completed The finished product (100); in the heating step (C), when the stacked silicon steel sheets (2) are heated by the heating module (4), there is also a pressing step (C1), the aforementioned pressing step (C1) is controlled by a hydraulic pressure and a solenoid valve to control the top cylinder device (5) to hold the stacked silicon steel sheets (2) against the bottom, so that each silicon steel sheet is tightly glued during punching; the roller type rubber press (3) The thickness of each printing glue is 0.001mm to 0.005mm. The method for manufacturing a glued laminated iron core according to claim 1, wherein the roller type rubber printing machine (3) can transfer the glue (30) to the punching and shearing shape of the processed plate (1). (40) of the desired surroundings. The method for manufacturing a glued laminated iron core according to claim 2, wherein the roller type rubber printing press (3) further comprises a glue supply assembly (31), a printing plate cylinder (32), a rubber cylinder ( 33) and a pressure cylinder (34); the glue supply assembly (31) is composed of a plurality of glue supply rollers (311) abutting against the printing plate cylinder (32); the printing plate cylinder (32) 32), which is in contact with a plurality of the rubber supply rollers (311) and the rubber cylinder (33), and the surface of the printing plate cylinder (32) also has a punching and shearing shape (40) corresponding to the plate (1) to be processed. The printing pattern (321) is arranged around the required circumference, and the printing plate cylinder (32) can attach the glue (30) on the plurality of glue supply rollers (311) to the printing pattern (321); the A rubber cylinder (33), which is in contact with the printing plate cylinder (32), is located above the plate to be processed (1), and is in contact with the upper surface of the plate to be processed (1), so that the printing pattern (321) can be ) glue (30) is transferred to the desired periphery of the punching and shearing shape (40) of the plate (1) to be processed; the pressure roller (34), which is up and down with the rubber roller (33) Correspondingly arranged and positioned below the plate to be processed (1) and abutted with the lower surface of the plate to be processed (1), the plate to be processed (1) can be driven to move toward a conveying path. The method for manufacturing a glued laminated iron core according to claim 3, wherein the printing plate cylinder (32) can be one of the following: a relief cylinder, a gravure cylinder, and a lithographic cylinder.

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