WO2016017897A1 - Adhesive type laminated-core member manufacturing apparatus and laminated-core member transfer apparatus applied to same - Google Patents

Abstract

Disclosed is an adhesive type laminated-core member manufacturing apparatus comprising: an adhesive applying unit that applies an adhesive to a continuously transferred material; a laminate unit that integrates laminar members, which are stacked in a laminate hole by blanking of the material, through inter-layer bonding and curing; and a laminated-core member transfer unit that extracts the laminated-core member, which is integrated in the laminate unit, and transfers the extracted laminated-core member to the outside. The laminated-core member transfer unit includes: guide frames installed on the left and right sides of an extraction passage; and rollers that are rotatably installed across the left and right guide frames along the extraction passage to help the movement of the laminated-core member that is extracted and transferred from the laminate unit. According to the present invention, which has the above-described configuration, a new adhesive type laminated-core member manufacturing apparatus that conforms to the trend toward precise constant application of an adhesive and reduction of curing time is provided, and in a process of extracting a laminated-core member that has escaped from the laminate unit that integrates laminar members (L), the laminated-core member can be effectively transferred irrespective of the geometric shape thereof, thereby preventing a phenomenon, such as a defect in external appearance due to a collision between products.

Description

Adhesive laminated core member manufacturing apparatus and laminated core member transfer apparatus applied thereto

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 an adhesive laminated core member manufacturing apparatus for manufacturing a laminated core member for a motor or the like by laminating the lamina members. And it relates to a laminated core member transfer apparatus applied thereto.

In general, a laminated core manufactured by laminating and integrating lamina members, also called core sheets, is used as a rotor or a stator of a generator or a motor, and manufactures the laminated core. As a method of manufacturing a laminated core for laminating and integrally fixing the lamina member, a tab fixing method using an interlock tab, a welding fixing method using welding, for example, laser welding, a rivet fixing method, and the like are known.

The tab fixing method is disclosed as a manufacturing technology of a laminated core member in patent documents such as Korean Patent Publication Nos. 10-2008-0067426 and 10-2008-0067428, and the method of manufacturing the laminated core member is iron loss (Iron). Loss) problem, in particular, the tab fixing method is difficult to embossing due to the trend of thinning of the material, that is, steel sheet, showing a limitation as a manufacturing technology of the laminated core. The above-mentioned Unexamined Patent Publication and the following patent document disclose laminated core members of various types and shapes.

In addition, recently, an adhesive fixing method of integrating and integrating lamina members constituting the laminated core member with an adhesive has been proposed, and Korean Patent Application Laid-Open No. 10-1996-003021 and Japanese Patent Laid-Open No. 5-304037. The adhesive fixing method is disclosed.

Referring to Japanese Patent Laid-Open No. 5-304037 of the above-mentioned patent document, the raw material for manufacturing the motor core, that is, the steel sheet, is supplied to the first press molding machine and the second press molding machine by a transfer roller, and passes through the first press molding machine. The adhesive is applied to the steel sheet by means of an application roller and a nozzle before.

The core material sequentially stacked on the first press molding machine and the second press molding machine by blanking of the material is integrated by the adhesive, thereby producing an adhesive laminated core.

According to the conventional adhesive fixing method, that is, the adhesive laminated core manufacturing method described above, cost can be reduced compared to laser welding, and the steel sheet can cope with thinning, but when the core material is moved downward while being integrated into the laminated barrel by the heating heater, By falling to the bottom of the stacking barrel, the stacking core member is damaged by a drop impact and / or another stacking core member that subsequently falls, and there is a problem that the alignment state of the stacking core members is disordered.

Then, together with the core material passing through the heating heater, parts of the heater, for example, a mold or a stacked barrel forming part, may be deformed (heat-expanded) or damaged by heat, and a product (ie, an area through which the core material passes) is laminated. Straightness / depreciation (change) of the barrel) results in misalignment of the core material and product defects, and a phenomenon in which product quality is not uniformly maintained. In addition, since the components of the press molding machine and the nozzle application roller are separately separated and operate independently, precise control is required for adhesive application and blanking.

In the conventional adhesive laminated core manufacturing apparatus, the laminated core material (that is, the product) is subjected to the frictional force between the laminated core material and the bottom plate constituting the takeout passage of the product in the process of taking out the product through the product taking-out part of the manufacturing apparatus. Due to this, the product does not move well on the floorboard, and therefore, there is a problem that damage to the appearance of the product by hitting the product taken out next time.

In addition, in the conventional adhesive laminated core manufacturing apparatus, there is a risk of leakage of the adhesive and surrounding contamination at the outlet of the nozzle applying the adhesive, and the adhesive leaks to the outside of the nozzle so that the adhesive adheres to the surface of the nozzle, thereby causing the There are problems such as clogging and contamination of the outlet, which may be more problematic in the quantitative accuracy of the adhesive and the shortening of the curing time.

In addition, the conventional adhesive laminated core manufacturing apparatus has a difficulty in applying a certain amount of adhesive to the surface of the steel sheet at regular intervals in conjunction with the blanking process, and in order to accurately control the amount of ejection of the adhesive and the nozzle operation time (adhesive application timing) Fine control of the adhesive supply pressure, ie the adhesive pressure inside the nozzle, is required, and if the adhesive application process is not carried out properly, the layers of the laminated core are separated and lead to product defects. Problems may occur.

The present invention has been proposed to solve the above-mentioned conventional problems, and in conjunction with the operation of the blanking unit for blanking the motor core material, an adhesive may be applied to the material surface only at a desired application timing, and the surface of the nozzle and surrounding contamination It is an object of the present invention to provide an apparatus for manufacturing an adhesive laminated core member having a new structure, which effectively prevents the nozzle from being squeezed or clogged with the nozzle, and meets the trend of quantitative precision of adhesive and shortening of curing time.

On the other hand, another object of the present invention is the adhesive laminated core member manufacturing apparatus, the laminated core member itself in the process of taking out the laminated core member exiting the laminate unit integrating the lamina member (L) itself. The present invention provides a laminated core member transfer device having a new structure that can be smoothly transported regardless of the geometric shape thereof, thereby preventing a phenomenon such as appearance defects due to a collision between products.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention, the adhesive applying unit for applying an adhesive to the material to be continuously transported; A laminate unit for integrating and laminating the lamina members laminated in the laminate hole by blanking of the material, and integrating the laminate; Adhesive laminated core member manufacturing apparatus is provided, comprising; a laminated core member transfer unit for taking out the laminated core member integrated in the laminate unit and transports it to the outside.

In the above-described configuration, the laminated core member transfer unit,

On the other hand, in the above-described configuration, the laminated core member transfer unit, the guide frame is installed on the left and right side of the take-out passage, and is installed to be rotatable across the left and right guide frame along the take-out passage is taken out of the laminate unit and conveyed It characterized in that it further comprises a roller to help the movement of the laminated core member.

In the above-described configuration, the laminate unit is provided at the lower side of the adhesive curing machine, and an adhesive curing machine for curing the adhesive existing between the layers of the lamina member to integrate the lamina members passing through the laminate hole, It characterized in that it comprises a pinch for applying a side pressure to the laminated core member to prevent the fall of the laminated core member.

On the other hand, the upper side of the laminate unit is further provided with a blanking unit for blanking the material, the blanking unit, a blank punch provided in the upper mold of the adhesive laminated core member manufacturing apparatus, and the adhesive curing machine so as to face the blank punch And it characterized in that it comprises a blank die provided in the lower mold of the adhesive laminated core member manufacturing apparatus.

The adhesive applying unit includes an adhesive applicator provided on the lower mold together with the blank die, and the upper mold is provided with a pressing member for pressing the material toward the adhesive applicator, and the adhesive applicator is a conveying direction of the material. It is characterized in that provided on the upstream side than the blank die on the basis.

On the other hand, according to another aspect of the present invention for achieving the above object, take out the passage of the integrated laminated core member by bonding and curing the lamina member coated with an adhesive for the manufacture of the core for the motor or generator It is for transporting along the guide, the guide frame is installed on the left and right side of the take-out passage, and the roller is installed to be rotatable across the left and right guide frame along the take-out passage to help the movement of the laminated core member taken out and conveyed from the laminate unit An adhesive laminated core member transfer unit is provided, which comprises:

Adhesive laminated core member manufacturing apparatus according to the present invention and the laminated core member transfer apparatus applied thereto has the following effects.

First, according to the present invention, in conjunction with the operation of the blanking unit blanking the material for the motor core, the adhesive can be applied to the surface of the material only at the desired application timing, the nozzle exit due to the surface of the nozzle and the surrounding contamination is narrowed (狹窄Can be effectively prevented.

Second, according to the present invention, the poor adhesion between the layers of the laminated core member can be prevented, and can meet the trend of shortening the quantitative precision and curing time of the adhesive.

Third, according to the present invention, as the laminated core member is smoothly and transported on a roller regardless of the geometric shape in the process of taking out the laminated core member exiting the laminate unit integrating lamina members (L), The appearance defect of the product due to the collision between the products at the time of taking out is effectively prevented.

Fourthly, according to the present invention, since the stacking core members can be stably taken out, damage to the stacking core members due to product drop and drop impact due to the release of the side pressure can be prevented, and further, the stacking core members are aligned. It is possible to take out.

Fifth, according to the present invention, even if the size of the laminated core members is changed due to thermal expansion, stable side pressure can be applied to the side surfaces of the laminated core members, which causes the laminated core to be formed inside the laminate hole (Lamiante Hole). Gradual movement of the members can be induced.

Sixth, according to the present invention, since the accuracy of the laminate unit integrating the lamina members, that is, the straightness of the laminate hole (Lamiante Hole) through the lamina members is kept stable, misalignment of the core member is prevented and Product quality control is easy.

Seventh, according to the present invention, the heat generation / thermal expansion phenomenon of the peripheral parts other than the heated object, for example, a mold, squeeze or pinch or other parts may be reduced, and the lamina members are laminated in a properly aligned state, and the lamina member Their straight mobility can be improved.

Eighth, according to the present invention, the phenomenon of contamination of the adhesive outlet (nozzle outlet) and the periphery of the outlet by the adhesive can be minimized or prevented, and the coating area and the coating amount and the application position of the adhesive can be managed at a uniform level. The consumption of adhesive can be reduced. More specifically, since the adhesive outlet is opened only when the material and the adhesive applying unit are in close proximity, the discharge timing and the adhesive coating amount of the adhesive can be controlled constantly.

Ninth, according to the present invention, since the blanking punch for blanking the material and the pressing member for pressing the material in the direction of the adhesive applicator are mounted together on the upper mold and lifted at the same time, the blanking process and the blanking are performed due to the synchronized operation of the blanking punch and the pressing member. The adhesive application process, which is the entire process, can be performed simultaneously, the adhesive application timing can be maintained stably and accurately, and the lamina members can be sequentially moved while being laminated by blanking, so that the lamina members can be easily stacked and aligned. Can be performed.

The features and advantages of the present invention may be better understood with reference to the following drawings in conjunction with the following detailed description of embodiments of the invention, of which:

1 is a longitudinal sectional view schematically showing the structure of the adhesive laminated core member manufacturing apparatus according to an embodiment of the present invention by cutting in the conveying direction of the material;

Figure 2 is a view showing an embodiment of the adhesive applying unit as a longitudinal cross-sectional view along the line "A-A" in Figure 1;

3 is a cross-sectional view schematically showing a laminate unit according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view illustrating a process of integrating lamina members in an interior (laminate hole) of the laminate unit shown in FIG. 3;

5 (a) and (b) is shown separately to show the operation of the laminated core member transfer unit according to an embodiment of the present invention,

Figure 5 (a) is a state diagram before the operation of the ejection cylinder, Figure 5 (b) is an operating state diagram at the time when one laminated core member is taken out by the ejection cylinder;

6 is a plan view showing a part of the laminated core member transfer unit of FIG.

7 is a plan view showing various examples of the core member;

8 is an exploded perspective view showing an example of a high frequency heater and a guide of the laminate unit according to the present invention;

9 is a plan view illustrating a state in which the high frequency heater and the guide illustrated in FIG. 8 are assembled;

10 is a cross-sectional view of FIG. 8;

11 is an exploded perspective view showing another example of the high frequency heater and the guide of the laminate unit according to the present invention;

12 is a plan view schematically showing one embodiment of a pinch applicable to a laminate unit according to the present invention;

FIG. 13 is a longitudinal cross-sectional view taken along the line “B-B” of FIG. 1;

14 is an exploded cross-sectional view showing an adhesive applicator and a valve of the adhesive applying unit shown in FIG. 13;

15 is a longitudinal sectional view showing the operation of the adhesive applying unit shown in FIG.

16 is a cross-sectional view showing an embodiment of a nozzle elevating mechanism for elevating the adhesive coating unit of the adhesive laminated core member manufacturing apparatus according to the present invention; And

17 is a view showing another embodiment of the adhesive coating unit of the adhesive laminated core member manufacturing apparatus according to the present invention; And

18 is a plan view schematically showing an example of an adhesive coating process and a blanking process by the apparatus for manufacturing an adhesive laminated core member according to the present invention.

Hereinafter, preferred embodiments of the present invention, in which the object of the present invention can be specifically realized, are described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted below.

The present invention provides an adhesive lamination for producing a lamination core member for a motor core by blanking a strip-shaped material continuously conveyed to form lamina members having a predetermined shape, and bonding and integrating the layers of the lamina members. It relates to a laminate unit (laminate unit) for curing the adhesive existing between the layers of the lamina member for the integration of the core member manufacturing apparatus and the lamina member.

In other words, an embodiment of the present invention, the laminate unit to form a laminated core member by integrating the lamina members laminated by blanking of the material, and the adhesive laminated core member comprising the laminate unit and the adhesive coating unit It relates to a manufacturing apparatus.

First, referring to FIGS. 1 to 7, an embodiment of an adhesive laminate core member manufacturing laminate unit and an adhesive laminate core member manufacturing apparatus having the same according to an embodiment of the present invention will be described.

1 is a longitudinal cross-sectional view schematically showing the structure of the adhesive laminated core member manufacturing apparatus according to an embodiment of the present invention by cutting in the conveying direction of the material, Figure 2 is shown in FIG. Figure 3 is a view showing an embodiment of the adhesive coating unit as a longitudinal cross-sectional view along the line "AA", Figure 3 is a cross-sectional view schematically showing a laminate unit according to an embodiment of the present invention, Figure 4 is a laminate shown in Figure 3 It is sectional drawing which shows the process of integrating lamina members in the inside (lamination hole) of a unit. And, Figure 5 (a) and (b) is an enlarged view showing only the laminated core member transfer unit according to an embodiment of the present invention, Figure 5 (a) is a state diagram before the ejection cylinder operation, Figure 5 (B) is an operation state diagram at the time of taking out one laminated core member by a blowout cylinder.

And, Figure 6 is a plan view showing a part of the laminated core member transfer unit of FIG.

On the other hand, Figure 7 is a plan view showing various examples of the core member manufactured by the adhesive laminated core member manufacturing apparatus of the present invention.

1 to 7, the adhesive laminated core member manufacturing apparatus according to the present embodiment, the adhesive unit is applied to the laminate unit 100 to integrate the lamina member (L) and the material (S) that is continuously conveyed It is configured to include an adhesive coating unit 200.

The laminate unit 100 is a lamina member (L) sequentially formed by the blanking unit 300 of the material (S) to be continuously transferred, for example, a steel core for manufacturing a motor core (hereinafter referred to as a 'metal strip') The lamina members L are integrated into a single mass by curing the adhesive present between the layers of the multilayer lamina members L.

In more detail, the laminate unit 100 may include an adhesive curing machine 110 for curing an interlayer adhesive of lamina members L passing through a laminate hole 100a, that is, a lamination hole, and the adhesive. It is configured to include a pincher 120 that is provided on the lower side of the curing machine 110, that is, a device (Pincher) for holding the laminated core member (C). The laminate hole 100a is a space in which the lamina members L are stacked in the up and down direction and continuously integrated. The laminate hole 100a is formed to penetrate through the laminate unit 100 in the up and down direction.

The adhesive curing device 110 is a device for curing the adhesive existing between the layers of the lamina member (L), in this embodiment, by curing the adhesive by high frequency induction heating so that the adhesive curing speed is increased, that is, the heated object It consists of a high frequency induction heater which integrates the lamina members (L). Since the high frequency induction heating itself is well known, further description thereof is omitted, and the present invention provides a method of most effectively curing the adhesive applied between the layers of lamina members and minimizing the thermal effect on the peripheral materials. High frequency induction heating is started.

Inside the adhesive curing machine 110 is provided with a guide 130 for guiding the movement of the lamina member (L), the guide 130 is more specifically non-conductive material so as not to be affected by high frequency induction heating It is preferable to have an Engineering Ceramics material.

In addition, the pinch 120 prevents the product from being discharged downward from the adhesive curing machine 110, that is, the sudden drop of the laminated core member C formed by the integration of the lamina members L. To this end, the pinch 120 is provided on the lower side of the adhesive curing machine 110, by applying a side pressure to the laminated core member (C) to prevent the instantaneous fall of the laminated core member (C).

In addition, the laminate unit 100, by applying a pressure (side pressure) to the side of the lamina member (L) moving downward from the upper side of the adhesive curing machine 110 toward the adhesive curing machine 110, the lamina member It further comprises a squeeze 140, ie a squeeze device for aligning (L).

The squeeze 140 is applied to the lamina members (L) so that the lamina members (L) sequentially formed by the blanking of the material (S) is laminated in an aligned state inside the squeeze As a configuration, the lamina members L are pressed into the squeeze 140 while sequentially entering the inside of the squeeze 140.

In the present embodiment, the squeeze 140 is aligned with the lamina member (L) in a straight line on the upper side of the adhesive curing machine 110, the lamina member (L) is aligned by the squeeze 140 Stacked and enter the high frequency heater 110 via the squeeze 140. The squeeze 140 may be made of a special steel, for example, SKD-11.

Meanwhile, the blanking unit 300 includes a blank punch 310 and a blank die 320, and the metal strip S continuously passing between the blank punch 310 and the blank die 320. Is blanked and the lamina member L of a predetermined shape is formed sequentially.

In the present embodiment, the lamina member L refers to a single layer of thin sheet manufactured by blanking the material S, that is, the metal strip. In addition, the laminated core member (C) is a configuration forming a stator or a rotor of the motor, for example, a member constituting at least a portion of the core (Core), for example, a core wound around the coil, etc., FIG. A plan view showing various examples of the adhesive laminated core member, which may be manufactured in various outer shapes according to the core manufacturing and design conditions.

The blank die 320 has a die hole having a predetermined shape opposite to the blank punch 310, and the lamina member L has an inner hole, that is, a die hole, of the blank die 320 at the same time as the blanking. Is put into. In FIG. 1, although the blanking area (the part penetrated by the blanking) of the metal strip S is larger than the lamina member L, the shape and size of the blanking area and the lamina member are substantially the same. As is apparent in the art, a lamina member having the same shape and size as that of the blank die 320 is formed.

In the present embodiment, the blank punch 310 is provided in the upper frame 20a more specifically than the upper die 20, and the blank die 320 is more specifically in the die frame 10b than the lower die 10. It is provided. In addition, the blanking unit 300 is located downstream from the adhesive coating unit 200 for the blanking process, which is a post-process of the adhesive coating process, based on the transfer direction of the metal strip S.

In addition, the blank punch 310 is provided in the upper frame 20a together with the pressing member 230 for pressing the metal strip toward the lower mold, and moves up and down together with the upper mold 20. Therefore, when the blanking process is performed on the metal strip S by the blanking unit 300, the adhesive application process by the adhesive application unit 200 is simultaneously performed upstream of a predetermined pitch.

As described above, the blanking unit 300 is a blanking material, the laminate unit 100 is a device for integrating the lamina member (L) sequentially manufactured by blanking, the blank die 320 In the lower side, a laminated hole that is integrated while passing through the lamina members L sequentially stacked, that is, the above-described laminate hole 100a is provided.

In more detail, the squeeze 140 is provided below the blank die 320 to align the lamina members L passing downward toward the adhesive curing machine 110, and the squeeze 140 The lower side of the adhesive curing machine 110 is provided to integrate the lamina member (L) through the adhesive curing.

The squeeze 140 supports the side surfaces of the lamina members (L) for the sequential lamination of the lamina members and prevents misalignment or misalignment of the lamina members (L). It may be composed of a squeeze ring (Squeeze Ring) that surrounds the inside of the 320, that is, the same shape as the die hole, that is, around the lamina member. Therefore, when the outer circumference of the lamina member (L) is circular, the inner hole of the squeeze ring is circular, and when the lamina member is 'T' shaped, the squeeze ring also has a 'T' hole. It may be configured in a shape.

The squeeze 140 may have a ring type or a barrel type surrounding the outside of the lamina members (L), but a pin (Pin) or the split support of the outside of the lamina members (L) in a plurality of positions or It may also be a block structure. In addition, the lamina members (L) are pushed by the blank punch 310 in a state of being fitted inside the squeeze 140 so as to pitch one squeeze 140 for each stroke of one press (of a single lamina member). Thickness), and a hole formed in the squeeze 140, that is, a squeeze hole, becomes part of the laminate hole.

In the present embodiment, the above-described guide 130 is provided inside the adhesive curing machine 110. The guide 130 induces the alignment and straight passage of the heated object (the straight out of the product) located in the adhesive curing machine 110, that is, the high frequency heater, an example of the guide 130 as described above Guides made of engineering ceramics, ie non-conductive materials, are applied.

And the upper side of the adhesive curing machine 110 is preferably provided with a barrier material 150 for thermal disconnection between the squeeze 140 and the adhesive curing machine 110. The blocking member 150 blocks the squeeze 140 and the high frequency heater 110 so that the lamina member L may pass through an inner region (adhesive curing region) of the adhesive curing machine 110 through which the lamina members L pass. Other peripherals, in particular the squeeze 140 is minimized or prevented from being generated by high frequency induction. As an example of the blocking member 150, a shielding material of beryllium copper material may be applied.

In addition, as shown in Figure 3, the circumference of the adhesive curing machine 110 is preferably provided with a cooling furnace 160, for example a cooling channel for cooling the lower die, in particular die holder 10c, The squeeze 140 may also be provided with a cooling furnace 160. The adhesive curing machine 110 is disposed inside a cooling block having the cooling furnace 160, and the outer edge of the adhesive curing machine 110 is surrounded by the cooling block.

On the other hand, the pinch 120, by applying a side pressure to the product (laminated hardened core member) passing through the inside to help the alignment of the product (C) to move down in the adhesive curing machine 110 and the product, that is the core member (C) To prevent a sudden drop.

The pinch 120 includes a pinch block 121 and an elastic member that supports elastically the pinch block 121, that is, a pinch spring 122, and a product, that is, a core member C, coming out of the adhesive curing machine 110. ), The core member C is prevented from falling rapidly to the bottom of the laminate hole 100a after passing through the adhesive curing machine 110.

In addition, the above-described barrier material 150 may be provided between the adhesive curing machine 110 and the pinch 120, and the cooling path 160 may be provided on the outer circumference of the pinch 120.

The blank die 320, the squeeze 140, the guide 130, and the pinch 120 are disposed coaxially with the lower mold 10 to form a part of the above-described laminate hole 100a, respectively, and the laminate hole. At the bottom of the 100a, a take-out support 170 supporting the bottom of the product (laminated core member C) discharged through the lamination and curing process is provided to be liftable.

The ejection support 170 descends while the core member C is seated. When the ejection support 170 reaches the bottom of the laminate hole (lamination barrel), the ejection cylinder 13 is connected to the laminated core member ( Push C) into the draw passage to help take out the product.

In FIG. 4, a gap is formed between the lower core member C and the immediately above core member, but is actually stacked in contact with the core member C to pass through the laminate hole 100a continuously. And the side of the lamina member (L) and the side of the laminated core member (C) is in close contact with the squeeze 130 and the pinch 140 more specifically than the inner surface of the laminate hole (100a).

Referring to FIGS. 5A and 5B and FIG. 6, the laminated core member transfer unit 400 includes guide frames 410 provided on left and right sides of the takeout passage, and left and right guide frames along the takeout passage. It is configured to include a roller 420 is installed to be rotatable across the 410 to help the movement of the laminated core member taken out and conveyed from the laminate unit.

In this case, the roller 420 may be coated with a resin having excellent wear resistance and self-lubricating properties such as PTFE (Polytetrafluoroethylene) or UPE (Ultra High Molecular Weight Polyethylene).

On the other hand, the guide frame 410 or the roller 420 may be installed to be inclined at a predetermined angle along the extraction direction so that the stacked core member (C) can be easily taken out.

Accordingly, as shown in (a) of FIG. 5, the take-out support 170 supporting the bottom of the product (lamination core member; C) discharged through the lamination and curing processes is lowered to form the laminate hole (lamination barrel). After reaching the bottom, as shown in FIG. 5 (b), the ejection cylinder 13 pushes the laminated core member C into the ejection passage to assist in ejecting the product.

At this time, since the roller 420 is installed on the discharge passage to reduce the contact area with the stacked core members C, thereby minimizing the friction force, the laminated core member C pushed by the discharge cylinder 13 and introduced into the discharge passage is Riding on the rotating roller 420 very easily moves along the draw passage.

Therefore, the laminated core member C is smoothly and conveyed regardless of the core member geometry in the process of taking out, thereby effectively eliminating the appearance defects due to the collision between the products.

8 to 10, the adhesive curing machine 110, that is, the high frequency heater includes a coil 111 constituting a passage of a high frequency current, and the coil 111 is cured to accommodate the lamina members. It is wound around the hole 110a. In more detail, the coil 111 has a tubular coil, ie, a coil conduit, which is spirally embedded in a coil block 112, and both ends of the coil conduit 112 for application of a high frequency current. Terminals 111a and 111b are provided to be exposed to the outside of the coil block 112.

The above-mentioned hardening hole 110a is formed through the coil block 112 in the vertical direction, and the cooling fluid, for example, the cooling water is supplied / discharged to the coil 111, that is, the coil conduit along the arrow of FIG. 8. In addition, the above-described guide 130 is disposed in the hardening hole 110a.

The guide 130 may be a block structure or a split type structure having an empty interior such as a ring type or a barrel type. The guide 130 shown in FIG. 8 is a hollow cylindrical block, which is applicable when the outer shape of the lamina member is circular, for example, in the shape shown in FIG. When the lamina member is in the "T" shape as shown in (c), the inner hole, that is, the guide hole of the guide 130 may be in the "T" shape.

In addition, the guide 130 may be formed between the inner circumferential surface of the hardening hole 110a and the outer circumferential surface of the guide 130 in consideration of the heated object and thermal expansion of the guide 130. ) May be manufactured in a smaller size than the curing hole (110a).

Of course, as illustrated in FIG. 11, the guide may include a plurality of guide pins 121 that are dividedly disposed along an inner profile of the hardening hole 110a, for example, an circumferential direction of an inner circumferential surface thereof. It may be.

Referring to FIG. 12, the pinch blocks 121 are spaced apart from each other along the circumference of the laminated core member C in the laminate hole 100a, for example, the laminate hole 100a. ) Are installed in units of a certain angle. The pinch 120 may be both a moving type and a fixed type fixed in place, but a moving type is preferable in consideration of thermal expansion. If the pinch spring 122 is omitted in FIG. 12 and the pinch block 121 is fixed in place so that the pinch block 121 does not move, an example of the fixed type pinch is provided.

The pinch block 121 is spaced apart at a plurality of positions along the circumference of the core member C, and is supported by the pinch spring 122, that is, the elastic member, so that the elastic side pressure is applied to the core member C. Add. Therefore, in the present embodiment, the pinch 120 may be a moving type, and the pinch block may be a fixed type pinch when the pinch block is fixed to the laminate hole 100a without a change in position. Of course, the squeeze 140 may also be configured as a moving type such as the pinch instead of the fixed type described above, for example, a ring structure.

Hereinafter, an embodiment of an adhesive coating unit applicable to the core member manufacturing apparatus according to the present invention will be described with reference to FIGS. 13 to 15, and examples of the adhesive coating unit applicable to the present invention are not limited to the structures described below. Of course.

13 to 15, the adhesive applying unit 200 applies an adhesive to the metal strip S at a predetermined timing at a predetermined position. In the present embodiment, when the metal strip (S) and the adhesive applying unit 200 are close to each other, the adhesive coating to the metal strip (S) is performed.

More specifically, the adhesive applying unit 200 is selectively opened at a predetermined position to apply the adhesive to the metal strip. In addition, the blanking unit 300 sequentially forms lamina members having a predetermined shape by blanking the metal strip S, for example, an electrical steel sheet, as described above. The adhesive applying unit 200 is provided upstream of the blanking unit 300 based on the transfer direction of the metal strip S, and performs an adhesive applying process which is a whole process of the blanking process. In addition, the lamina members formed by the blanking unit 300 are sequentially stacked on the laminate unit 100 and discharged through an integration process.

The adhesive applying unit 200 is selectively opened at a predetermined position at a predetermined timing, i.e., at a predetermined period, to apply an adhesive to a surface of the metal strip S, for example, a bottom surface of the metal strip S. 210 and a valve 220 for opening and closing the outlet of the adhesive applicator 210 for the application of the adhesive.

In this embodiment, the adhesive applying unit 200 is pressed by the metal strip (S) is opened, the nozzle (Nozzle) type for transferring the adhesive in the form of dots (Dot) on the surface of the metal strip (S). More specifically, the adhesive applicator 210 is configured as a nozzle body, including a nozzle passage 211 filled with adhesive and an outlet channel 212 forming an outlet of the adhesive applicator 210.

Here, the adhesive applicator 210 is a nozzle body (hereinafter the same reference numerals as 'glue applicator' is applied), the outlet channel 212 is the metal strip (S) to form an outlet of the nozzle passage (211). ) Is a nozzle outlet formed, and when the valve 220 is opened, the adhesive, which is received at a predetermined pressure inside the adhesive accommodating chamber 241 (see FIG. 15), is connected to the metal strip through the outlet channel 212. It is applied to the surface of (S).

In addition, the valve 220 blocks the outlet channel 212 and, when the metal strip S and the outlet channel 212 are close to each other, opens the outlet channel 212, that is, the nozzle outlet. Only at the adhesive application timing is the nozzle outlet (hereinafter the same reference numeral as the 'outlet channel' applied) open.

The valve 220 is configured to include a valve plug 221 that is inserted into the outlet channel 212 movably to open and close the outlet channel 212. In this embodiment, the valve plug 221 is pressed by the metal strip S to open the outlet channel 212. When the external force applied to the valve plug 221 is removed by the metal strip S, the valve plug 221 is moved to the cutoff position of the outlet channel 212 so that the valve plug 221 may be A tip protrudes out of the outlet channel 212, ie the nozzle outlet, and consequently the outlet channel 212 is blocked.

In this embodiment, the metal strip (S) is pressed down by the pressing member 230, the metal strip (S) is close to the nozzle body 210 by the metal strip (S) by the valve When the front end of the plug 221 is pressed, the valve plug 221 opens (falls) the nozzle outlet 212 while reversing (falling) into the nozzle body 210.

When the metal strip S rises and moves away from the nozzle body 210, the valve plug 221 may be restored to its original position, ie, moved forward (rising), thereby blocking the nozzle outlet 112 again. The valve plug 221 is closed by a valve supporter 222 which restores the fluid pressure inside the nozzle body 210 and / or the valve plug 221 to the nozzle shutoff position to block the nozzle outlet 212.

The valve supporter 222 may include a spring, for example, a coil spring, which elastically supports the valve plug 221. One end (lower end) of the coil spring is installed at the bottom (upper side of the adhesive accommodating chamber) of the nozzle body 210, and the other end (upper end) is connected to the valve plug 221 to connect the nozzle to the valve plug 221. It is the structure which provides the elastic force of an exit direction.

13 and 14, the outlet channel 212 has an outlet 212a for discharging the adhesive and a passage reducing portion 212b that narrows toward the outlet 212a. In addition, the valve plug 221 may have a shape in which the width decreases toward the front end, that is, the upper end thereof so as to correspond to (shape) the shape of the outlet channel 212. For example, the upper structure of the valve plug 221 may be configured as a cone shape or a polygonal pyramid shape.

In addition, in the present embodiment, the nozzle body 210 is provided in the lower frame 10 (particularly, the die frame 10b). The die frame 10b is provided with a lifter for elastically supporting the metal strip S upwardly so that the metal strip S is restored to a top dead center position. Referring to FIG. 13, the lifter in the present embodiment includes a lift pin 11 that supports the metal strip S, and a lift spring 12 that supports the lift pin 11 upwards. Elastically supports the metal strip S in an upward direction to separate the metal strip S from an adhesion coating applicator, that is, the valve plug 221.

Therefore, when the pressing member 230 is raised, the metal strip S moves away from the nozzle body 210, and when the force for pushing down the valve plug 221 is removed, the pressure inside the nozzle (adhesive agent is received). Pressure inside the seal) and / or the valve supporter 222 restores the valve plug 221 to the nozzle shutoff position.

Referring to FIG. 15, the nozzle body 210, that is, the adhesive applicator, receives the adhesive through the adhesive supply pipe 240 of the adhesive supply. More specifically, the adhesive contained in the adhesive tank T is pumped by a pneumatic device or other pump applying air pressure to the nozzle body at a predetermined pressure through the adhesive supply pipe 240. 210 is supplied.

That is, the adhesive supplier includes an adhesive presser such as a pneumatic device or a hydraulic device or a pump for pressurizing the adhesive contained in the adhesive tank (T) and the adhesive tank (T), and the adhesive includes the adhesive supply pipe 240 And the adhesive accommodating chamber 241 are supplied to the nozzle body 210.

In addition, the adhesive applying unit 200 may be configured to include a plurality of nozzle bodies 210 are installed in parallel with each other, the nozzle bodies 210 are adhesive application position (D: see Fig. 18, T-shaped ramie B) is applied to a plurality of points of the member in the form of dots).

In the present embodiment, the adhesive of the adhesive tank T is distributed at a predetermined pressure through the adhesive accommodating chamber 241 and simultaneously supplied to the plurality of nozzle bodies 210. That is, the adhesive of a predetermined pressure is uniformly supplied to the plurality of nozzle bodies 210 connected in parallel to the adhesive accommodating chamber 241, and the adhesive is simultaneously applied to a plurality of points, that is, several positions. Therefore, when the adhesive is filled in the adhesive accommodating chamber 241 and the nozzle body 210 at a predetermined pressure, and the valve plug 221 is opened by the pressing member 230, the nozzle body 210 is opened. The adhesive inside is pushed out by the pressure applied by the pneumatic device and applied to the surface of the metal strip (S).

In addition, an upper surface of the nozzle body 210 may coincide with a height of the lower surface, in particular, the upper surface of the die frame 10b, and the upper surface of the die frame 10b may be a bottom dead center of the metal strip S. However, preferably, when the metal strip (S) is lowered to the bottom dead center, the structure in which the top surface of the metal strip (S) and the nozzle body 210 is spaced at a predetermined interval to smoothly discharge and apply the adhesive. do.

The pressing member 230 is provided to the upper die 20 is configured to move up and down with the upper die. In more detail, the pressing member 230 is provided in the upper frame 20a which is installed at intervals above the die frame 10b, and is elevated. In this embodiment, the pressing member 230 is integrated with the upper mold 20. Ascend while climbing. Therefore, the upper mold 20 becomes an upper holder for supporting the pressing member 230, and the lower die frame 10b becomes a lower holder for supporting the nozzle body 210. The nozzle body 210 may be arranged in parallel to the die frame 10b in accordance with the outer shape of the core member (C).

On the other hand, the adhesive applicator, that is, the nozzle body 210 is a predetermined period by the nozzle lifting mechanism 250, for example, a cam mechanism or a hydraulic / pneumatic cylinder, etc. provided in the lower mold, in particular the lower holder (10c) It lowers every time, and prevents adhesive application to the said metal strip (S). More specifically, when the laminated core member is a 10-layer structure composed of 10 lamina members, the adhesive coating process is omitted once every 10 times the metal strip S is moved. Adhesion between the laminated core members C is prevented.

To this end, the nozzle elevating mechanism 250 lowers the nozzle body 210 once every time the metal strip S moves a predetermined pitch, so that the valve plug 221 is driven by the metal strip S. To prevent pressurization. In the laminated core member C shown in FIG. 1, the dotted line is the portion where the interlayer adhesion is made, and the solid line is the portion without the interlayer adhesion as a boundary between the laminated core members.

Referring to FIG. 16, in the present embodiment, the nozzle elevating mechanism 250 includes an elevating body 251 that supports the adhesive applying unit 200, in particular an adhesive applicator, and is provided to be elevated in the lower frame 10. And a supporter 252 for supporting the elevating body 251 to ascend to the top dead center of the elevating body.

In the present embodiment, the lifting body 251 is fixed to the lower side of the adhesive applying unit 200 to be integrated with the adhesive applying unit 200, in particular the adhesive applicator. The nozzle elevating mechanism 250 further includes a lowering device 253 such as a spring for lowering the lifting body 251 to restore the bottom dead center of the lifting body. Of course, the structure and operation of the nozzle elevating mechanism is not limited to the above-described example.

In addition, in the present embodiment, the lower mold 10 includes a base frame 10a constituting a base and dies 10b and 10c provided on an upper side of the base frame 10a, and the nozzle body 210. That is, an adhesive applicator is installed on the dies 10b and 10c.

The die is divided into a die frame 10b in which the nozzle body 210 is installed, and a die holder 10c provided below the die frame 10b and in which the nozzle lifting mechanism 250 is installed. Nozzle mounting holes are formed in the die frame 10b, but the structure of the lower die, in particular, the die frame is not limited thereto. The die frame 10b is provided with the nozzle body 210 and the blank die 320, and the upper frame 20a is provided with the pressing member 230 and the blank punch 310.

Therefore, the adhesive applying unit in this embodiment is provided with the lower mold | type 10, more specifically, the adhesive applicator 210 with which the die frame 10b is equipped, and the said adhesive applicator, and is provided with the said adhesive applicator. A valve 220 for opening and closing, an upper mold 20 provided on the upper side of the lower mold 10, and a pressing member 230 provided on the upper frame 20a more specifically, the upper mold 20.

On the other hand, the adhesive applicator 210, that is, the nozzle body, the valve plug 221 and the valve supporter 222 is made of a material that prevents or minimizes the narrowing of the adhesive, that is, a resin having no polarity or low surface tension Specifically, the plastic material may be made of Teflon, and in addition, it may be made of a material such as PP (polypropylene) and PE (polyethylene) that do not easily adhere to the adhesive.

In this embodiment, the pressing member 230 is a compression plate or a pressure plate that functions as a stripper in the blanking process and simultaneously presses the metal strip S toward the nozzle bodies 210 in the adhesive application process. In addition, an elastic member (for example, a coil spring) 231 is provided between the pressing member and the upper frame and a lifting guide 232 for guiding the lifting of the pressing member.

Hereinafter, an operation process of the adhesive applying unit 200 according to the present embodiment will be described with reference to FIG. 15.

The metal strip S moves between the pressing member 230 and the die frame 10b by moving a predetermined distance at a predetermined period, that is, every press stroke, and as shown in FIG. 15A. When the metal strip S reaches the adhesive application position, the upper die 20 is lowered to press the metal strip S as shown in FIG. 15 (b). Accordingly, the metal strip S pressurizes the valve plug 221 to open the nozzle outlet 212, and the adhesive inside the nozzle body 210 is pushed out by internal pressure, causing the metal strip S to be pressed. It is applied to the surface of the.

When the upper die 20 is raised, the metal strip S is moved away from the nozzle outlet 212 by the lift pin 11 and the leaf spring 12, and thus the valve plug 221 is moved. While rising, the nozzle outlet 212 is again blocked as shown in FIG.

However, a syringe type adhesive feeder may be applied as shown in FIGS. 15A and 15B to fill the nozzle body 210 by gravity rather than pneumatic or hydraulic. That is, the adhesive supplier may be configured to include an adhesive tank (T), the piston (P) and the weight (W). More specifically, the adhesive tank (T) is provided with a piston (P), the piston (P) is lowered by a weight, for example, the weight (W) while the inside of the adhesive tank (T) An adhesive is supplied to the nozzle body 210. That is, the weight (W) is lowered by gravity to enter the piston (P) into the adhesive tank (T).

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

The metal strip S by a material conveying device (not shown) such as a conveying roller, such that the metal strip S passes through the pressing member, that is, the stripper 230 and the die frame 10b by one pitch. ) Is supplied, the pressing member 230 and the blank punch 310 mounted on the upper die 20 are lowered together with the upper die 20 to press the upper surface of the metal strip S. .

In this case, the metal strip S is pressed down by the pressing member 230 and lowered toward the nozzle body 210, and the valve plug 221 is pressed by the metal strip S to press the nozzle body 210. Open the outlet. Accordingly, an adhesive is applied to a portion of the surface of the metal strip located directly above the adhesive applicator, that is, the nozzle body 210.

Simultaneously with the adhesive application process described above, blanking of the material proceeds by the blank punch 310 descending at the same time as the pressing member 230 at the downstream side of the adhesive application region, and inside the laminate hole 100a, that is, inside the laminated barrel. The integration process of the lamina members sequentially laminated by blanking is performed.

The stacking barrel 100a is a passage formed by the squeeze 140 and the adhesive curing machine 110, and furthermore, the pinch 120, and the lamination of the lamina members L and the curing of the adhesive proceed. Form a passage.

The squeeze 140 and the pinch 120 align the products passing through the lamination barrel, that is, the lamina members L and the lamination core members C, and the adhesive curing machine 110 is formed by high frequency induction. The heat generated hardens the adhesive present between the layers of the lamina members (L).

On the other hand, when the application of the adhesive and the blanking is completed, the upper die 20 is raised, the metal strip (S) is separated from the valve plug 221 by the lift pin 11 and the lift spring 12 The nozzle outlet 212 is closed again, and when the metal strip S is moved one pitch again, the above-described process is repeated and the manufacture of the adhesive laminated core member C is performed.

As described above, the embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope thereof in addition to the embodiments described above can be realized by those skilled in the art. It is self-evident to.

Therefore, the above-described embodiments are to be considered as illustrative and not restrictive, and thus, the invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

The present invention relates to a core manufacturing apparatus and a process for producing a core used as a rotor or stator for a motor or a generator, etc. According to the present invention, the core member integrated by interlayer adhesion can be smoothly taken out.

Claims (8)

1. An adhesive applying unit for applying an adhesive to a continuously conveyed material;

   A laminate unit for integrating and laminating the lamina members laminated in the laminate hole by blanking of the material, and integrating the laminate;

   Adhesively laminated core member manufacturing apparatus comprising a; laminated core member transfer unit for taking out the laminated core member integrated in the laminate unit to transfer to the outside.
2. The method of claim 1,

   The laminated core member transfer unit,

   And a roller installed on the left and right side of the take-out passage and rotatable across the left and right guide frame along the take-out passage to assist the movement of the laminated core member taken out from the laminate unit and transported. Adhesive laminated core member manufacturing apparatus.
3. The method of claim 2,

   Adhesively laminated core member manufacturing apparatus characterized in that the roller is coated with PTFE (Polytetrafluoroethylene) or UPE (ultra high molecular weight polyethylene) on the surface.
4. The method of claim 2,

   Adhesively laminated core member manufacturing apparatus, characterized in that the roller is installed downwardly inclined along the extraction direction of the stacked core member (C).
5. The method of claim 1,

   The laminate unit, an adhesive curing machine for curing the adhesive existing between the layers of the lamina member to integrate the lamina members passing through the laminate hole, and

   Adhesively laminated core member manufacturing apparatus provided on the lower side of the adhesive curing machine comprising a pinch for applying a side pressure to the laminated core member to prevent the fall of the laminated core member.
6. The method of claim 1,

   A blanking unit for blanking the material on the upper side of the laminate unit is further provided,

   The blanking unit includes a blank punch provided on the upper mold of the adhesive laminated core member manufacturing apparatus, and a blank die provided on the lower mold of the adhesive laminated core member manufacturing apparatus together with the adhesive curing machine so as to face the blank punch. Adhesive laminated core member manufacturing apparatus characterized in that the.
7. The method of claim 1,

   The adhesive coating unit,

   An adhesive applicator provided on the lower mold together with the blank die;

   The upper mold is provided with a pressing member for pressing the material toward the adhesive applicator,

   The adhesive applicator is an adhesive laminated core member manufacturing apparatus, characterized in that provided on the upstream side than the blank die based on the conveying direction of the material.
8. In order to transfer the integrated laminated core member along the take-out passage by laminating and curing the lamina member coated with the adhesive for the manufacture of the motor or generator core,

   And a roller installed on the left and right side of the take-out passage and rotatable across the left and right guide frame along the take-out passage to assist the movement of the laminated core member taken out from the laminate unit and transported. Adhesive laminated core member transfer unit.

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