KR101566486B1 - Adhesive Applying Unit Having Mountain Shape And Adhesive Type Laminating Core Member Manufacturing Apparatus - Google Patents

Abstract

According to the present invention, disclosed are an apparatus for manufacturing an adhesive type laminating core member which includes an adhesive coating unit which is opened selectively to coat an adhesive on a material transported continuously, for example, a material for manufacturing a motor core and a blanking unit forming laminar members of a fixed shape sequentially by blanking the material, and manufactures a laminating core member for a core of a motor or a generator by bonding the laminar members between layers, and the adhesive coating unit for the same. According to the present invention, the adhesive coating unit includes: a base body where an adhesive is filled; and an adhesive discharging part which is protruded on an upper side of the base body, and forms a mountaintop whose top is open to discharge the adhesive. Therefore, because the adhesive can flow down along a slope of the adhesive discharging part protruded upward the base body, the adhesive coating unit can minimize or prevent a phenomenon that an exist of the adhesive is contaminated by the adhesive, and can manage adhesive coating area, the amount of coating and a coating position constantly.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an adhesive applying unit and an adhesive laminated core member manufacturing apparatus having a peak shape,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a core member manufacturing apparatus used for manufacturing a core such as a motor or a generator, and more particularly, to a core member manufacturing apparatus used for manufacturing a core such as a motor, And an adhesive applying unit for manufacturing a laminated adhesive layered core member.

Generally, a laminated core manufactured by laminating and laminating members is used as a rotor and a stator of a generator or a motor, and a method of manufacturing the laminated core, that is, a laminated core manufacturing method in which the laminated member is laminated and integrally fixed As a method, a tapping method using an interlock tap and a welding fixing method and a riveting method using welding, for example, laser welding, are known.

The tap-fixing method is disclosed in Korean Patent Laid-Open Nos. 10-2008-0067426 and 10-2008-0067428 as a technique for producing a laminated core member, Iron loss). Particularly, in the tap-fixing method, the embossing is difficult due to the thinning of the material, that is, the steel sheet, which shows the limitation as a manufacturing technique of the laminated core. The above-mentioned patent publications and the following patent documents disclose various types and shapes of laminated core members.

In another method, there is proposed a bonding fixing method in which laminar members constituting the laminated core member are integrated with an adhesive. Korean Patent Laid-Open Publication No. 10-1996-003021 discloses the above-mentioned adhesive fixing method. In the adhesive fixing method disclosed in Korean Patent Laid-Open Publication No. 10-1996-003021, a lamination member laminated in the vertical direction And the lamina members are integrated by applying an adhesive.

There is an interlayer bonding method in which an adhesive is applied to the surface (bottom surface or top surface) of the lamina member to adhere the layers of the lamina members by another method of the above-mentioned adhesion fixing method. The apparatus for manufacturing a laminated core according to the interlaminar bonding method injects an adhesive onto the surface of the material, that is, the metal strip, or transfers the adhesive onto the surface of the metal strip in a line form or a dot form by contacting the metal strip with the nozzle outlet.

However, the conventional method of spraying the adhesive on the surface of the metal strip in the conventional apparatus for producing a laminated core is disadvantageous in that it is difficult to uniformly control the application amount of the adhesive, the application area and the application position, and the consumption of the adhesive greatly.

In the method in which the nozzle outlet and the metal strip are brought into contact with each other and the adhesive is transferred in a linear form or a dot form to the surface of the metal strip, the adhesive discharged from the nozzle outlet is pushed by the metal strip, There is a problem that the adhesive is stuck, the contamination of the periphery of the nozzle outlet and the clogging of the outlet, which may further become a problem in the precise application of the adhesive and shortening of the curing time.

Also, in the structure in which the nozzle outlet is always open, that is, even in the open nozzle, the adhesive leaking to the outside of the nozzle outlet stagnates at the nozzle outlet and the periphery thereof to be stuck as it is, , Contamination of the nozzle outlet and its surroundings due to the overflow of the adhesive under an environment in which the pressure of the nozzle is difficult to precisely control can occur more seriously.

As described above, if the adhesive is stuck to the periphery of the nozzle outlet, the nozzle outlet may be clogged, and it may be difficult to precisely perform the application of the adhesive due to the proximity of the metal strip and the nozzle outlet, When the metal strip is transferred to the metal strip, interlaminar adhesion of the lamina members is interrupted, and as a result, the interlayer of the laminated core member is separated, leading to product failure, which leads to problems such as deterioration in productivity and increase in management cost .

Further, in the conventional laminated core manufacturing apparatus, it is difficult to apply a certain amount of adhesive to the surface of the steel sheet (material) at regular intervals in cooperation with the blanking process, and in order to accurately control the amount of adhesive application and the nozzle operating time (adhesive application timing) It is necessary to precisely control the supply pressure, that is, the pressure inside the nozzle, and if the adhesive application process is not properly performed, the layer between the laminated cores is separated, leading to product failure. Problems may arise.

Korean Patent Laid-Open Publication No. 10-2006-0044726, split core motor stator and assembling method thereof Korean Patent Laid-Open Publication No. 10-2008-0067426, core body, core wing, and prefabricated laminated core Korean Patent Laid-Open Publication No. 10-2005-0015175, a laminated core manufacturing apparatus Korean Patent Laid-Open Publication No. 10-1996-0003021,

The present invention has been proposed in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to minimize or prevent the contamination of the adhesive outlet and the periphery of the outlet by an adhesive applied to a core manufacturing material such as a motor or a generator, And it is an object of the present invention to provide an adhesive applying unit and an adhesive laminated core member manufacturing apparatus having a structure capable of preventing clogging due to stenosis.

In order to achieve the above-mentioned object, the present invention provides a bonding apparatus comprising: an adhesive application unit which is selectively opened to apply an adhesive to a continuously transported material; and an adhesive application unit for sequentially forming lamina members of a predetermined shape by blanking the material The present invention provides an adhesive laminated core member manufacturing apparatus and a glue applying unit for producing a laminated adhesive layer laminated core member, the laminate core member being manufactured by interlaminar bonding the lamina members. The adhesive application unit comprising: A base body to which the adhesive is filled; and an adhesive discharge unit protruding from an upper surface of the base body and forming a top opening for discharging the adhesive.

The adhesive discharging portion and the base body may be made of the same material and integrally formed. The base body is preferably made of Teflon, but is not limited thereto. For example, the base body may be made of stainless steel (SUS) or other plastic material.

Wherein the adhesive discharging portion is formed with a penetrating path which penetrates the upper end of the adhesive discharging portion and communicates with the inside of the base body; In order to prevent the adhesive from being stuck on the surface of the penetrating passageway, a channel conduit forming a passage of the adhesive may be inserted into the penetrating passageway. The upper end of the channel conduit may protrude higher than the upper end of the adhesive discharge portion. The channel conduit may have a polyglycolic acid (PGA) resin material.

The adhesive discharge unit may be detachably coupled to the base body so as to be separated from the upper side of the base body.

The base body having an assembly hole formed on an upper surface of the base body for mounting the adhesive discharge unit; The adhesive discharge unit may include a channel head having a peak shape and a channel body integrally formed at a lower portion of the channel head and screwed to the assembly hole.

The upper surface of the base body may be inclined upwards from one side to the other side. In addition, the base body may have a drain for discharging adhesive accumulated on the upper surface of the base body.

The base body comprising: And an upper sidewall protruding from an upper surface of the base body so as to be flush with an upper end of the adhesive discharge portion.

The blanking unit may include a blanking punch provided in the upper frame, more specifically, a top frame of the adhesive laminated core member manufacturing apparatus, and a blanking punch disposed in the die frame of the adhesive laminated core member manufacturing apparatus, And a blank die provided on the substrate; The base body being provided with the blank die, more specifically in the die frame than the lower die; More specifically, the upper frame is provided with a pressing member for pressing the material toward the base body, and the base body is disposed upstream of the blank die to perform an adhesive applying process which is a previous step of the blanking process.

The base body is supplied with the adhesive from an adhesive feeder. And the adhesive feeder comprises an adhesive tank for receiving the adhesive and an adhesive pressurizer for conveying the adhesive to the base body in the adhesive tank. The adhesive pressurizer may include a pneumatic device, a hydraulic device, a pump, or a piston.

The piston may be movably provided in the adhesive tank, and may be configured to receive a load of a weight to press the adhesive.

The adhesive laminated core member manufacturing apparatus and the adhesive application unit for the same according to the present invention have the following effects.

First, according to the embodiment of the present invention, since the adhesive can flow down on a slope (inclined surface) of the adhesive discharging portion protruding in the shape of a peak, the phenomenon that the adhesive stagnates and stagnates around the adhesive outlet can be minimized or prevented , The adhesive application area, the application amount, and the application position can be constantly managed.

Secondly, according to the embodiment of the present invention, the clogging of the adhesive passage due to the adhesive stenosis can be minimized or prevented, and the maintenance work can be easily performed when the adhesive passage is clogged.

Third, according to the embodiment of the present invention, it is possible to prevent transition of the adhesive mass formed on the periphery of the adhesive outlet to the surface of the material due to curing and stiction of the adhesive, and to prevent interlayer adhesion failure of the laminated core member .

Fourthly, according to the embodiment of the present invention, since the blanking punch for blanking the work and the pressing member for pressing the work in the direction of the adhesive applicator are mounted on the upper frame at the same time, the work is synchronized with the blanking punch and the pressing member, And the adhesive applying process, which is a pre-process of the blanking process, can be performed at the same time, and the adhesive application timing can be stably and accurately maintained.

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the present invention will become better understood with reference to the following description taken in conjunction with the following detailed description of embodiments of the invention,
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view schematically showing a structure of an adhesive laminated core member manufacturing apparatus according to an embodiment of the present invention, taken in a direction of conveyance of a material; FIG.
2 is a cross-sectional view schematically showing an embodiment of an adhesive application unit for manufacturing a core according to the present invention;
3 is a sectional view showing the operation of the adhesive application unit shown in Fig. 2;
4 is a cross-sectional view showing one embodiment of a nozzle lifting mechanism for lifting and lowering an adhesive applying unit for manufacturing a core according to the present invention;
5 schematically shows another embodiment of an adhesive feeder applicable to an adhesive application unit according to the present invention;
6 is a cross-sectional view schematically showing another embodiment of an adhesive application unit for core production according to the present invention;
7 is a cross-sectional view schematically showing another embodiment of an adhesive application unit for producing a core according to the present invention;
8 is a view showing an adhesive discharge portion of the adhesive application unit shown in FIG. 7;
Fig. 9 is a cross-sectional view of the "B" part of Fig. 8 showing the process of discharging and applying the adhesive;
10 is a longitudinal sectional view taken along the line "AA" in Fig. 1;
11 is a cross-sectional view showing one embodiment of a stacking barrel of a blanking unit for the present invention;
12 is a plan view showing an adhesive applying process and a blanking process by the adhesive laminated core member manufacturing apparatus of FIG. 1; And
13 is a plan view showing examples of the core member.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In describing embodiments of the present invention, the same reference numerals are used for the same configurations.

The present invention relates to a laminated core member for producing a laminated core member for a motor core by blanking continuously fed strip-shaped material to form lamina members of a predetermined shape, A core member manufacturing apparatus, and an adhesive application unit for applying an adhesive to the work for interlayer adhesion of the lamina members.

Hereinafter, an embodiment of an adhesive application unit according to the present invention and an adhesive laminated core member manufacturing apparatus having the same will be described with reference to FIGS. 1 to 4. FIG. 1 is a longitudinal sectional view schematically showing the structure of an adhesive laminated core member manufacturing apparatus according to an embodiment of the present invention in a feeding direction of the work, FIG. 2 is a cross- Fig. 3 is a cross-sectional view showing the operation of the adhesive applying unit shown in Fig. 2, and Fig. 4 is a view showing an embodiment of a nozzle lifting mechanism for lifting and lowering the adhesive applying unit according to the present invention Fig.

1 to 4, the adhesive laminated core member manufacturing apparatus or laminated core member manufacturing system according to the present embodiment includes an adhesive applying unit 100 and a blanking unit 200. The adhesive application unit 100 applies an adhesive to a continuous core material S for production of a core, more specifically a steel strip for motor core production (hereinafter referred to as 'metal strip') at a predetermined position and at a predetermined timing. The blanking unit 200 sequentially forms lamina members of a predetermined shape by blanking the metal strip S, for example, an electrical steel sheet. In the present embodiment (the first embodiment) The blanking unit 200 is provided downstream of the adhesive applying unit 100 with reference to the material S, i.e., the direction in which the metal strip is conveyed, and performs a blanking process as a post-process of the adhesive applying process.

The adhesive application unit 100 according to the present embodiment includes a base body 110 in which the adhesive is filled and a base body 110 in which the adhesive is discharged so as to apply the adhesive to the metal strip at a predetermined timing, And an adhesive discharge unit 112 for discharging the adhesive.

Referring to FIGS. 2 and 3, the first embodiment of the adhesive application unit 100 will be described in more detail. In the base body 110, the adhesive is discharged from the adhesive discharge unit 112 at a predetermined pressure In this embodiment, a space 111 for filling the adhesive is formed in the base body 110. However, regardless of the width of the inner space 111 formed in the base body 110, The inner space of the base body 110 itself serves as a nozzle passage.

In the case where the adhesive applying unit 110 is a nozzle type, the base body 110 is also referred to as a nozzle body, hereinafter referred to as a nozzle block, The same reference numerals as those in FIG.

The adhesive discharge unit 112 forms a peak of an upper end of the nozzle block 110 protruding from the upper surface 114 of the nozzle block 110 and having an opening at the upper surface 114 of the nozzle block 110. More specifically, the adhesive discharging portion 112 forms an adhesive discharging peaks rising in the form of peaks at the upper side 114 of the nozzle block.

The adhesive discharge unit 112 has a structure in which the side surface, that is, the circumferential surface is inclined so that the adhesive flows down on the slope 112a, and the width is narrowed toward the upper end of the adhesive discharge unit 112 And may have a shape such as a cone or a polygonal horn having an opening at the top for discharging the adhesive. Accordingly, the adhesive that overflows to the top of the adhesive discharge unit 112, that is, the top of the adhesive discharge unit 112, can flow down on the slope 112a of the adhesive discharge unit 112.

In this embodiment, the top of the adhesive discharge unit 112 is an adhesive outlet, and a through hole (not shown) passing through the upper end of the adhesive discharge unit 112 and communicating with the inside of the base body 110 120 are formed in the interior of the adhesive discharge portion 112.

The upper side 114 of the base body is formed so as to be inclined upward from one side to the other side so that the adhesive flowing down from the adhesive discharge unit 112 is not stagnant on the upper side of the base body 110, The upper surface of the base body 110 is formed with a drain 115 for discharging adhesive accumulated on one side of the upper side surface 114 (left side in FIG. 2) do.

The drain 115 is formed in a portion of the upper surface 114 of the nozzle block having a relatively low height. In this embodiment, the drain 115 penetrates the upper surface 114 of the nozzle block and is formed vertically. Therefore, the overflowing adhesive at the adhesive outlet of the adhesive discharge unit 112 flows down the slope 112a of the adhesive discharge unit and the upper side 114 of the nozzle block, and is discharged through the drain 115.

The upper side wall 113 is protruded from the upper side 114 of the nozzle block and the upper side wall 113 is flush with the upper end of the adhesive discharge portion 112, The upper side wall 114 may be surrounded by the upper side wall 113. However, for example, the adhesive discharge portion 112 may be formed on the upper side wall 113 ). ≪ / RTI >

The base body 110 and the adhesive discharging portion 112 are integrally formed as the same material. In the present exemplary embodiment, the base body 110 and the adhesive discharging portion 112 are formed by the adhesive stuck But is not limited to, a Teflon material so that it can be prevented or minimized.

For example, the base body 110 and the adhesive discharging portion 112 may be formed of a plastic material made of a resin having no polarity or low surface tension so that the stiction of the adhesive can be prevented or minimized, more specifically, It may be made of a material which does not adhere to the adhesive such as Teflon or PP (Polypropylene) and PE (Polyethylene). Of course, the base body 110 and the adhesive discharging portion 112 may be made of a metal material, for example, stainless steel.

In the present embodiment, when the adhesive discharge unit 112 and the metal strip S come close to each other, the adhesive discharged from the adhesive discharge unit 112 is deposited on the surface of the metal strip S, The adhesive application is performed.

More specifically, the adhesive is applied by approaching the metal strip S and the adhesive discharging portion 112, and the metal strip S is pressed by the pressing member 130 to be lowered Thereby approaching the upper end of the adhesive discharging portion 112.

Of course, since the adhesive discharge portion 112 and the metal strip S may be adjacent to each other due to the rise of the base body 110, the relative movement between the metal strip and the base body may cause the adhesive discharge portion 112 And the metal strip S are close to each other, it is possible to apply the adhesive by the transition. Even if the adhesive agent outlets of the metal strip S and the adhesive outlet 112 are not in contact with each other, the adhesive that is pushed out of the adhesive outlet, particularly, the adhesive that forms at the outlet of the adhesive agent sticks to the surface of the metal strip S, Adhesive application can be achieved if they are close to each other at a distance that can be achieved.

In this embodiment, the base body 110 is provided in a lower frame 10, particularly a die frame 10b, and a lifter (not shown) for supporting the metal strip S in an upward direction Lifter) is provided. 4, the lifter according to the present embodiment includes a lift pin 11 for supporting the metal strip and a lift spring 12 for supporting the lift pin 11 in an upward direction, The strip S is elastically supported in the upward direction to separate the metal strip S from the adhesive outlet 112 or the nozzle outlet 112.

Therefore, when the pressing force of the pressing member 130 is removed, the metal strip S rises by the lifter pin 11 and the lifter spring 12, and the metal strip S and the adhesive discharging portion 112 ). The lower frame 10, particularly the die frame 10b, is a portion to which the base body 110 is fixed. A nozzle mounting hole is formed in the die frame 10b, and the base body 110 Are accommodated and fixed.

Referring to FIG. 3, the base body 110 is supplied with an adhesive through an adhesive supply pipe 140 of an adhesive feeder. More specifically, the adhesive contained in the adhesive tank T is transported by a pneumatic device, a hydraulic device, a pump, or the like that applies an air pressure, and is supplied to the base body 110 at a predetermined pressure .

That is, the adhesive feeder includes an adhesive tank T and a pneumatic device for transporting the adhesive from the adhesive tank T to the base body 110, or a hydraulic pressurizing device such as a hydraulic pump, a piston or a piston, The adhesive is supplied to the base body 110 through the adhesive supply pipe 140 as shown in FIG.

More specifically, it may include a plurality of adhesive discharging portions 112 provided in parallel with each other in the base body, and the adhesive discharging portions 112 may be formed by applying an adhesive application position D (see FIG. 12, A plurality of points at which the adhesive is applied in the form of an adhesive. In the present embodiment, the adhesive is distributed at a predetermined pressure in the inner space 111 of the base body 110, and simultaneously supplied to the plurality of adhesive discharging units 112. That is, the adhesive is uniformly supplied to the plurality of adhesive discharging portions 112 provided in parallel to the base body 110, and the adhesive is simultaneously applied to a plurality of points, that is, various positions.

Therefore, the adhesive in the base body 110 is filled with a predetermined pressure, and the adhesive in the base body 110 is gradually pushed out of the adhesive discharging portion 112 by the filling pressure, And a dot-shaped adhesive is applied to the surface of the metal strip S when the metal strip S is pushed by the pressing member 130 and comes close to the adhesive discharge portion 112.

The upper end of the upper side wall 113 corresponds to the upper side height of the die frame 10b and the upper end of the upper side wall 113 is connected to the upper end of the metal strip S, the metal strip S may be positioned close to the adhesive discharge unit 112 by a predetermined distance. In this case, the bottom dead center of the metal strip S and the bottom dead center of the adhesive There is a gap between the discharge portions 112.

The pressing member 130 is provided on the upper die 20 and moves up and down together with the upper die 20. More specifically, the pressing member 130 is provided on the upper frame 20a spaced apart from the upper side of the die frame 10b and is raised and lowered. In this embodiment, And moves up and down with integral motion with the upper mold 20. The upper frame 20a is an upper holder for supporting the pressing member 130 and the lower frame 10b is a lower holder for supporting the base body 110 .

The above-described adhesive discharging portion 112 may be arranged in parallel at a plurality of points according to the shape of the core member C and the adhesive application position. Therefore, as described above, when a plurality of adhesive discharging portions 112 are provided in parallel in the base body 110 and the core member C is in the "T" shape, A plurality of adhesive discharging portions 112 are provided in parallel to each other at a mutually spaced position to simultaneously perform adhesive application.

4, the base body 110 includes a nozzle lifting mechanism 150 (hereinafter, referred to as a lifting mechanism) provided in the lower holder 10c, for example, a cam mechanism or a hydraulic / And is raised and lowered by an elevating mechanism 150 such as a pneumatic cylinder. The base body 110 or the nozzle block is lifted by the lifting mechanism 150 to approach the metal strip S every time the metal strip S moves by one pitch, After the adhesive is applied, it may be lowered by the elevating device 150 and moved away from the metal strip. However, as described in the present embodiment, when the base body 110 is moved to the elevating device 150 The metal strip S is prevented from being adhered to the metal strip S even if the metal strip S is pressed down by the pressing member 130 to reach the bottom dead center.

More specifically, in the case where the laminated core member C has a ten-layer structure composed of ten lamina members, the adhesive application step is omitted once every 10 pitches of the metal strip S, To prevent adhesion between the core members (C).

For this purpose, the elevating mechanism 150 descends the base body 110 once each time the metal strip S moves by a predetermined pitch, for example, 10 pitches, so that the adhesive discharging portion 112 and the metal strip (S), thereby preventing the application of the adhesive. In the laminated core member C shown in Fig. 1, the dotted line indicates the portion where the interlaminar adhesion is made, and the solid line indicates the portion between the laminated core members where there is no interlaminar adhesion.

4, the elevating mechanism 150 includes an elevating body 151 that supports the base body 110 and can be elevated inside the lower frame 10, And a supporter 152 supporting the body 151 and raising the body 151 to a top dead center of the lifting body.

In the present embodiment, the lifting body 151 is fixed to the lower side of the base body 110 and moves integrally with the base body 110. The elevating mechanism 150 further includes a descender 153 such as a spring for descending the ascending / descending body 151 to return to the bottom dead center of the ascending / descending body. As shown in FIG. 4, However, the structure and operation of the elevating mechanism are not limited to the above-described examples.

The lower mold 10 includes a base frame 10a constituting a base portion and dies 10b and 10c provided on the upper side of the base frame 10a, And is installed in the dies 10b and 10c. The die is divided into a die frame 10b on which the base body 110 is installed and a die holder 10c provided on the lower side of the die frame 10b and on which the elevating mechanism 150 is installed The structure in which the nozzle mounting hole is formed in the die frame 10b or the structure of the lower die 10b and 10c is not limited thereto.

As described above, the adhesive applying unit according to the present embodiment includes a lower die 10, a base body 110 provided in the lower die, more specifically, the die frame 10b, An upper mold 20 provided above the lower mold 10 and a pressing member 130 provided on the upper frame 20a to form the upper mold 20a. do.

Hereinafter, the operation of the adhesive application unit 100 according to the present embodiment will be described with reference to Figs.

The metal strip S is moved by a predetermined distance for each predetermined stroke, i.e., one stroke, and passes between the pressing member 130 and the die frame 10, and as shown in FIG. 3 (a) When the metal strip S reaches the adhesive application position, the upper die 20 descends as shown in FIG. 3 (b), and the pressing member 130 pushes down the metal strip S.

Accordingly, the metal strip S is applied to the surface (bottom surface) of the metal strip S while the adhesive agent is close to the adhesive discharge portion 112 and discharged upward through the adhesive discharge portion 112 . When the upper mold 20 is lifted up, the metal strip S moves away from the adhesive discharging portion 112 by the lifter 11 and the lifter spring 12, thereby completing one adhesive application process .

The adhesive overflowing from the adhesive discharging portion 112 flows down along the slope of the adhesive discharging portion 112 and the upper surface 114 of the base body and is discharged through the drain 115.

On the other hand, a syringe type adhesive supplier as shown in Fig. 5 may be applied so that the adhesive agent is filled in the base body 110 by gravity rather than pneumatic pressure or hydraulic pressure or pump. The syringe type adhesive supply device comprises an adhesive tank (T), a piston (P) and a weight (W) for applying a load to the piston. More specifically, the adhesive tank T is provided with a piston P, and the piston P is lowered by the weight of the weight P, for example, by the weight W of the adhesive tank T, To the base body (110). That is, when the weight W is lowered by gravity and the piston P is introduced into the adhesive tank T, the adhesive in the adhesive tank T is pressed by the piston P And is transported to the base body 110 by pressure.

Next, other embodiments 100A, 100B of the adhesive application unit according to the present invention will be described with reference to Figs.

6, another embodiment 100A (second embodiment) of the adhesive application unit according to the present invention includes a base body 110 to which an adhesive is filled and an adhesive discharge unit 112 for discharging the adhesive .

The adhesive discharging portion 112 protrudes upward from the upper side 114 of the base body to form a top-opened peak. More specifically, the adhesive discharge unit 112 is provided with a through passage (discharge passage) communicating with the internal space 111 of the base body 110, and the discharge passage is formed in the adhesive discharge unit 112 And penetrates the upper end of the adhesive discharge portion 112. [ In order to prevent the adhesive discharge unit 112 from being blocked by the stiction of the adhesive, a channel conduit 120a, which forms a passage of the adhesive, is inserted into the discharge passage. That is, the channel conduit 120a prevents the adhesive from contacting the discharge passage.

The channel conduit 120a is fitted and secured to the discharge passage so as to cover the inner surface of the discharge passage. The upper end of the channel conduit 120a protrudes higher than the upper end of the adhesive discharge portion 112, that is, the upper end of the discharge passage. More specifically, the upper end of the channel conduit 120a protrudes to a certain height through the upper end of the discharge passage with a predetermined width (diameter). In this embodiment, the channel conduit 120a is a straight conduit having a constant width.

In this embodiment, the top (top) of the channel conduit 120a to be inserted into the adhesive discharging portion 112 is an adhesive outlet, and the channel conduit 120a is made of a plastic material, It can be manufactured in a more precise size than metal in accordance with design conditions such as a coating area.

The metal strip S and the upper end of the channel conduit 120a are close to each other so that an adhesive discharged through the upper end of the channel conduit 120a is applied to the surface of the metal strip S, The area of the adhesive applied to the surface of the metal strip S, that is, the area of the dot, can be kept constant, and the amount of application of the adhesive can be kept uniform.

The channel conduit 120a may be made of a material having excellent non-tackiness and further having excellent abrasion resistance. For example, a polyglycolic acid (PGA) material may be used. However, It is not limited to PGA. The PGA resin is a kind of biodegradable thermoplastic and has excellent abrasion resistance and non-tackiness. The PGA resin prevents the internal passage (the adhesive channel) of the channel conduit 120a from being blocked by the stiction of the adhesive, .

The adhesive discharging portion 112 has a side surface, that is, a sloped surface and an upper end, so that the adhesive can flow down along the slope 112a. The adhesive discharging portion 112 has a narrow width toward the top of the adhesive discharging portion 112 For example, a volcanic form, and more specifically, a shape such as a cone or a polygonal horn having an opening at the top. Accordingly, an adhesive that overflows at the upper end of the channel conduit 120a can flow down the slope 112a of the adhesive discharge unit 112. [

The upper side 114 of the base body is formed so as to be inclined upward from one side to the other side so as to prevent the adhesive flowing down from the adhesive discharge unit 112 from being stagnant on the upper side 114 of the base body And a drain 115 for discharging adhesive accumulated on the upper surface 114 of the base body, that is, the nozzle body, is formed on the upper surface 114 of the base body. The position and structure of the drain 115 may be the same as those described in the first embodiment.

The upper sidewall 113 protrudes from the upper side 114 of the nozzle body and the upper sidewall 113 is flush with the upper end of the channel 120a. The upper side wall 114 is surrounded by the upper side wall 113, but the height of the channel conduit 120a or the structure of the base body is not limited to this example.

The base body 110 and the adhesive discharging portion 112 are made of the same material and are integrally formed. In the present embodiment, the base body 110 and the adhesive discharging portion 112 are made of plastic such as Teflon Or stainless steel (SUS) material, but it is not limited thereto, and materials other than the above-described materials may be used as described in the first embodiment.

7 to 9, another embodiment 100B (third embodiment) of the adhesive application unit according to the present invention includes a base body 110 to which an adhesive is filled, and an adhesive And a discharge portion 120b.

The adhesive discharging portion 120b protrudes upward from the upper side 114 of the base body to form a top-opened peak. More specifically, the adhesive discharging portion 120b is provided with a through passage (discharge passage) communicating with the inside of the base body 110, and the through passage is communicated with the inner space of the base body 110 And passes through the upper end of the adhesive discharging portion 120b through the inside of the adhesive discharging portion 120b.

The adhesive discharge unit 120b is coupled to the base body 110 so as to be detached from the upper side of the base body 110 and includes peaks rising upward from the upper side 114 of the base body, . More preferably, the adhesive discharge portion 120b is detachably coupled to the base body 110.

To this end, the upper side 114 of the base body is provided with the assembly holes 114a and 120c for mounting the adhesive discharge unit 120b, and the adhesive discharge unit 120b Are fitted and fixed. The assembly holes 114a and 120c are connected to the inner space 111 of the base body 110 through the base body 110 or the nozzle block.

The adhesive discharge unit 120b includes a channel-shaped channel head 121 and a channel body 122. The channel body 122 is integrally formed at a lower portion of the channel head 121 and is coupled to the assembly holes 114a and 120c. Accordingly, the channel head 121 and the channel body 122 are integrally formed of the same material.

In this embodiment, the channel body 122 is screwed to the assembly holes 114a and 120c, and the inner peripheral surface of the assembly holes 114a and 120c is formed with a female screw, Male threads corresponding to female threads of the assembly holes 114a and 120c are formed.

According to the present embodiment, since the adhesive discharging portion 120b can be easily separated from the upper side of the base body 110 when the adhesive discharging portion 120b needs to be replaced or repaired such as clogged or broken, The operator separates only the adhesive discharging unit 120b without disassembling the whole of the adhesive applying unit, particularly the base body 110, in the die frame 10b, thereby facilitating the maintenance work, especially the replacement work, of the adhesive discharging unit 120b And can be conveniently performed.

The channel body 122 is provided at a lower portion of the channel head 121 to form a step on the adhesive discharging portion 120b so that the adhesive discharging portion 120b is inserted into the assembly holes 114a and 120c When joined, the depth of entry is limited. For example, as shown in FIG. 8, if the lower end diameter of the channel head 121 is larger than the diameter of the channel body 122, a jaw is formed at the lower end of the channel head 121.

The assembly holes 114a and 120c have a stepped shape including a lower hole 120c into which the channel body 122 is inserted and an upper hole 114a having an inner diameter larger than that of the lower hole, A lower end surface of the channel head 121 is seated on the bottom of the lower hole 120a and a female thread for fastening the channel body 122 is formed on an inner circumferential surface of the lower hole 120c.

In this embodiment, the upper end of the adhesive discharge portion 120b, that is, the upper end of the channel head 121, serves as an adhesive outlet. More specifically, the channel head 121 may be formed in a shape having a sloped side, that is, a shape having a slope 121a, for example, a cone or a polygonal horn, The channel head 121 is provided with an outlet channel 121b protruding from the upper end of the channel head 121 at a predetermined height with a constant height to discharge the adhesive through the upper adhesive outlet. In the lower end of the channel head 121, a width, for example, a constant diameter region may be formed.

Therefore, the metal strip S and the upper end of the adhesive discharging portion 120a are close to each other so that the adhesive discharged through the upper end of the adhesive discharging portion 120b is adhered to the surface of the metal strip S, The area of the adhesive applied to the surface of the metal strip S, that is, the area of the dot, can be kept constant, and the amount of application of the adhesive can be uniformly controlled.

The base body 110 and the adhesive discharging portion 120b may be made of the same material or a different material. In this embodiment, the same material, in particular, a material in which stiction of the adhesive is prevented or minimized, that is, The plastic material made of this low resin can be specifically made of Teflon. In addition, it is preferable to use a material which does not adhere to the adhesive such as PP (Polypropylene) and PE (Polyethylene) , The material is not limited to the present embodiment, and may be made of a metal material such as SUS material or the like.

According to the present embodiment, the clogging of the adhesive discharging portion 120b and the contamination around the adhesive outlet can be minimized or prevented, the adhesive discharging portion 120b can be manufactured in a precise shape, The amount of adhesive applied can be kept constant, and the phenomenon that the internal passage of the adhesive discharge portion 120b, that is, the through passage, is blocked by the stiction of the adhesive, that is, the flowability of the adhesive is lowered, can be prevented.

The upper surface 114 of the base body may be inclined upward from one side to the other side as in the above-described embodiments. Accordingly, it is possible to prevent the adhesive that flows down on the slope 121a of the adhesive discharging portion 120b from being stagnated and solidified on the upper surface 114 of the base body, and the upper surface 114 of the base body, A drain 115 for discharging the adhesive to be adhered to the upper surface 114 of the base body, that is, the nozzle block, is formed. The position and structure of the drain 115 may be the same as those described in the first embodiment.

The upper side wall 113 protrudes from the upper side 114 of the base body and the upper side wall 113 has the same height as the upper end of the adhesive discharge portion 120b, It is not. The upper side 114 of the base body is surrounded by the upper side wall 113.

Referring to FIG. 9, the internal passage 121c of the adhesive outlet 120b has a so-called fine hole structure having a narrow width (cross-sectional area of the flow passage), and has a structure in which the width gradually widens at the outlet portion, The width of the funnel-shaped structure is increased.

More specifically, the outlet channel 121b has an outlet channel in which the cross-sectional area of the channel increases toward the front end (upper end) of the outlet channel, and an inner channel connected to the outlet channel. In the present embodiment, the outlet passage is an upper passage as an extended passage, and the inner passage is a fine hole structure extending downward to a certain width (inner diameter) at a lower end of the extended passage.

As a result, the adhesive 1 discharged from the inside of the base body 110 to the outside of the outlet channel 121b by the adhesive feeder is deformed by the surface tension, The metal strip S is formed in the form of the metal strip S and the metal strip S reaches the line (l) shown in FIG. 9 (b) A certain amount of adhesive is accurately applied to the surface of the strip S.

In the parts not described in the second and third embodiments of the present invention described above in the first embodiment, for example, the principle of adhesive application or the mounting of the elevator or base body for raising and lowering the base body Position and the like can be similarly applied to the second and third embodiments of the present invention, and a repeated detailed description thereof will be omitted.

Accordingly, the base body 110 and the metal strip S are brought close to each other by relative movement, so that the application of the adhesive can proceed. The base body 110 is installed on the die frame 10b, (110) can be raised and lowered by the elevating mechanism.

10 to 12, the blanking unit 200 includes a blank punch 210 and a blank die 220. The blank punch 210 and the blank die 220 are disposed between the blank punch 210 and the blank die 220. [ The metal strip S which continuously passes while being moved by a predetermined distance (one pitch) per press stroke is blanked to sequentially form a lamina member having a predetermined shape. The blank die 220 has a blank hole of a predetermined shape opposed to the blank punch 210, and the lamina member is inserted into the blank hole at the same time as the blanking.

In FIGS. 1, 10 and 11, the portions blanked in the metal strip S are shown to be larger than the lamina member L, but the shapes and sizes are the same in the art, A lamina member having the same shape as the shape of the die 220, that is, the shape and size of the blank hole is formed.

In this embodiment, the blank punch 210 is provided in the upper frame 20a, and the blank die 220 is provided in the die frame 10b. More specifically, with reference to the direction of transport of the metal strip S, the blank die 220 is positioned downstream of the base body 110, i.e., the nozzle block, for a blanking process, And is provided on the die frame 10b together with the base body 110. [

The blank punch 210 is provided on the upper frame 20a together with the pressing member 130 so as to be opposed to the blank die 220 and integrally moves together with the upper die 20. Therefore, when the blanking process is performed on the metal strip S by the blanking unit 200, the adhesive application process by the adhesive application unit 100 proceeds simultaneously at a predetermined pitch spaced apart from the blanking unit.

The pressing member 130 functions as a stripper in the blanking process and at the same time presses the metal strip S toward the nozzle bodies 110 in an adhesive application process An elastic member (for example, a coil spring) 131 and a guide 132 for guiding the upward and downward movement of the pressing member are provided between the pressing member 130 and the upper frame 20a.

The blank unit 200 is an apparatus for laminating and laminating lamina members sequentially manufactured by blanking and blanking the lamina member L, which is sequentially stacked on the lower side of the blank die 220, And a lamination barrel which is integrated as it passes.

More specifically, a squeeze 230 is provided on the lower side of the blank die 220 to tighten the outer edges of the laminar members L that are sequentially stacked and pass downward. On the lower side of the squeeze 230, And an adhesive hardening unit 240 for hardening the laminated members L and integrating the laminated members.

The squeeze 230 is a part for supporting the lamina members L so as not to fall off suddenly when the lamina members are stacked and preventing lamination misalignment of the lamina members, that is, arrangement failure. In this embodiment, A squeeze ring that is the same as the inside of the die 220, that is, the blank hole.

Therefore, when the outer periphery of the lamina member L is circular, the squeeze ring becomes an annular ring. When the lamina member L is in the T shape as shown in FIG. 12, And a T-shaped hole is formed in the ring shape. The laminar members L are pushed by the blank punch 210 in a state of being embedded in the squeeze 230 and pass through the squeeze 230. On the other hand, as shown in Fig. 12, a plurality of the adhesive discharging portions are provided in parallel in the base body corresponding to the position of the adhesive dots so that the adhesive dots D are applied in advance to a plurality of points in the blanking planned region.

In this embodiment, a guide 250 for inducing alignment and straightening (straightening and taking out of the product) of the products or laminar members L as well as the laminated core members C is provided inside the adhesive hardener 240 For example, the guides 250 may be engineering ceramics or non-conductive guides.

The adhesive hardener 240 includes a high frequency coil as a high frequency induction heater for hardening the adhesive by high frequency induction heating so as to accelerate the adhesive hardening speed, but the kind of the adhesive hardener is not limited.

A heat insulating material 260 for thermal disconnection between the squeeze 230 and the adhesive curing device 240 may be provided on the adhesive curing device 240. For example, The heat insulating material 260 cuts off the space between the squeeze 230 and the adhesive curing device 240 so that a portion other than the inside area of the adhesive curing device 240 through which the lamina members L pass Thereby preventing heat from being generated. As an example of the heat insulating material 260, a heat insulating material made of beryllium copper can be applied.

A cooling passage 270 for cooling the lower die, for example, the die holder 10c may be provided around the adhesive hardening device 240, for example, a cooling water passage, and the squeeze 230 may be provided with a cooling passage .

On the lower side of the adhesive hardener 240, there is further provided a pinch 280 for applying a side pressure to a product (a laminated core member integrated by adhesive curing) passing through the interior thereof to help alignment of the product and prevent rapid dropping . The pinch 280 includes a pinch block 281 and a pinch spring 282 for elastically supporting the pinch block 281. The pinch block 281 is provided with a core member C Is a moving type which prevents the core member (C) from being eccentrically deviated to one side from the center of the lamination barrel and prevents the core member (C) from dropping rapidly after passing through the adhesive hardener (240).

A plurality of the pinch blocks 281 may be arranged in the laminated barrel. For example, a plurality of the pinch blocks 281 may be provided in units of a predetermined angle. The pinch 280 may be of both a moving type and a fixed type, but it is preferable that the pinch 280 is of the moving type in consideration of thermal expansion of the product. The moving type pinch or moving pinch is disposed on the periphery of the core member C so as to apply a resilient side pressure to the core member C, Block, and the squeeze 230 may also be of a fixed type, for example, a moving type rather than a ring type.

The heat insulating material 260 may be provided between the adhesive curing device 240 and the pinch 280 and the cooling path 270 may be provided around the outer periphery of the pinch 280.

The blank die 220, the squeeze 230, the guide 250 and the pinch 280 are coaxially installed in the barrel hole of the lower die 10, and a lamination and curing process is performed on the bottom of the barrel hole A take-out support 290 for supporting the bottom of a product (laminated core member) C discharged downward is provided so as to be able to move up and down.

The extraction cylinder 290 descends in a state in which the core member C is seated and the extraction cylinder 13 takes out the laminated core member C when the extraction support 290 reaches the bottom of the lamination barrel Push in the direction of the passage to help take out the product.

11, a gap is formed between the lower core member C and the upper core member, but they are actually stacked in contact with each other and continuously pass through the inner space of the lamination barrel, and the squeeze 230 and the guide 250 and the pinch 280 are in close contact with the side surface of the product (lamina members passing through the laminate barrel in a stacked state).

The process for manufacturing the adhesive laminated core member by the laminated core member manufacturing apparatus having the above-described configuration is as follows.

(Not shown) such as a conveying roller or the like so that the metal strip S passes through the pressure member, that is, between the stripper 130 and the die frame 10b by one pitch. The pressing member 130 mounted on the upper mold 20 and the blank punch 210 integrally lower together with the upper mold 20 press the upper surface of the metal strip S .

At this time, the metal strip S is pushed by the pressing member 130 and descends toward the adhesive discharging portion 112, 120b, and the metal strip S contacts the tip of the adhesive discharging portion 112, 120b A dot-shaped adhesive is applied to the surface of the metal strip S.

At the same time as the above-described adhesive application step, a blanking process is performed on the downstream side of the adhesive application area by the blank punch 210 descending simultaneously with the pressing member 130, and the lamination member The process of integrating them proceeds.

The laminating barrel is a hollow structure formed by the squeeze 230 and the adhesive hardener 240, and furthermore, the pinch 280 and the blank die 220, And the curing of the adhesive proceeds.

The squeeze 230 and the pinch 280 align the products or laminar members passing through the lamination barrel in a straight line, and the adhesive curing unit 240 is formed by heat generated by high frequency induction, Thereby curing the adhesive existing between the layers of the laminated plates (L).

When the application of the adhesive and the blanking are completed, the upper mold 20 is lifted and the metal strip S is moved away from the adhesive discharging portions 112 and 120b by the lifters 11 and 12, Then, when the metal strip S moves again by one pitch, the above-described process is repeated, and the production of the adhesive laminated core member C proceeds.

In this embodiment, the lamina member L refers to a thin sheet of a single layer produced by blanking the material S. The laminated core member C constitutes a stator or a rotor of a motor or a generator. The laminated core member C is at least a part of the core, for example, a core wing in which the coil is wound. Respectively.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. .

Therefore, it is preferable that the adhesive dispensing unit is installed such that the adhesive dispensing unit is disposed on the upper frame in a direction in which the base body is turned upside down (the upper surface of the base body is disposed toward the upper surface of the metal strip) It is to be understood that the invention is not limited to the above description and that the invention is not limited to the specific embodiments thereof except as defined in the appended claims, It is possible.

100: adhesive applying unit 110: base body
111: Adhesive chamber 112, 120b: Adhesive discharge part
112a: slope 113: upper side wall
114: upper surface of the base body 120:
120a: channel conduit 121: channel head
122: channel body 130: pressing member
200: blanking unit 210: blanking punch
220: blank die 230: squeeze
240: adhesive curing machine 250: guide
260: Insulation material 270: Cooling furnace
280: Pinch 290:

Claims (14)

An adhesive applying unit selectively opened to apply an adhesive to a continuously transported material; and a blanking unit for sequentially forming laminar members of a predetermined shape by blanking the blank, To produce a laminated core member, the apparatus comprising:
The adhesive application unit comprising:
A base body to which the adhesive is filled,
And an adhesive discharging portion protruding from an upper surface of the base body and forming a top opened hole for discharging the adhesive,
Wherein the adhesive discharging portion is formed with a penetrating path which penetrates the upper end of the adhesive discharging portion and communicates with the inside of the base body; Wherein a channel conduit, which is a passage of the adhesive, is inserted into the through-hole to prevent the adhesive from being stuck on the surface of the through-hole. The method according to claim 1,
Wherein the adhesive discharge unit and the base body are integrally formed of the same material. 3. The method of claim 2,
Wherein the base body is made of Teflon. delete The method according to claim 1,
Wherein an upper end of the channel conduit protrudes higher than an upper end of the adhesive discharging portion. The method according to claim 1,
Wherein the channel conduit has a polyglycolic acid (PGA) resin material. An adhesive applying unit selectively opened to apply an adhesive to a continuously transported material; and a blanking unit for sequentially forming laminar members of a predetermined shape by blanking the blank, To produce a laminated core member, the apparatus comprising:
The adhesive application unit comprising:
A base body to which the adhesive is filled,
And an adhesive discharging portion protruding from an upper surface of the base body and forming a top opened hole for discharging the adhesive,
Wherein the adhesive discharge portion is detachably coupled to the base body so as to be detachable from the upper side of the base body,
The base body having an assembly hole formed on an upper surface of the base body for mounting the adhesive discharge unit; Wherein the adhesive discharge unit comprises a channel head having a peak shape and a channel body integrally formed at a lower portion of the channel head and screwed to the assembly hole. 8. The method of claim 7,
An outlet channel protruding from the tip of the channel head; Wherein the outlet channel has an outlet channel in which the cross-sectional area of the flow channel increases toward the tip of the outlet channel, and an internal flow channel connected to the outlet channel. 8. The method of claim 1 or 7,
Wherein the upper side of the base body is formed to be inclined upward from one side to the other side. 8. The method of claim 1 or 7,
Wherein the base body has a drain for discharging an adhesive accumulated on an upper surface of the base body. 8. The method of claim 1 or 7,
The base body comprising: And an upper sidewall protruding from an upper surface of the base body so as to be flush with an upper end of the adhesive discharge unit. 8. The method of claim 1 or 7,
Wherein the blanking unit includes a blanking punch provided in an upper frame of the adhesive laminated core member manufacturing apparatus and a blank die provided in a lower mold of the adhesive laminated core member manufacturing apparatus so as to face the blanking punch; The base body being provided with the blank die in the lower mold; Wherein the upper frame is provided with a pressing member for pressing the material toward the base body. An adhesive applying unit for producing a laminated adhesive layer for forming a laminated core member for a core by vertically adhering laminar members laminated in a vertical direction to an adhesive for a core material, comprising:
A base body to which the adhesive is filled; And
And a peel-shaped adhesive discharge portion protruding from an upper surface of the base body and having an upper opening for discharging the adhesive,
Wherein the adhesive discharging portion is formed with a penetrating path which penetrates the upper end of the adhesive discharging portion and communicates with the inside of the base body; Wherein a channel conduit, which is a passage of the adhesive, is inserted into the through-hole to prevent the adhesive from being stuck on the surface of the through-hole. An adhesive applying unit for producing a laminated adhesive layer for forming a laminated core member for a core by vertically adhering laminar members laminated in a vertical direction to an adhesive for a core material, comprising:
A base body to which the adhesive is filled; And
And a peel-shaped adhesive discharge portion protruding from an upper surface of the base body and having an upper opening for discharging the adhesive,
Wherein the adhesive discharge portion is detachably coupled to the base body so as to be detachable from the upper side of the base body,
The base body having an assembly hole formed on an upper surface of the base body for mounting the adhesive discharge unit; Wherein the adhesive discharge unit comprises a channel head having a peak shape and a channel body integrally formed at a lower portion of the channel head and screwed to the assembly hole.

Images