KR101729286B1 - Apparatus for manufacturing laminated core by adhesive type - Google Patents

Abstract

The present invention relates to an adhesive laminated core manufacturing apparatus for laminating a core sheet by an adhesive lamination method by applying an adhesive to a strip moving in one progressive mold apparatus. The apparatus comprises an upper mold and a lower mold, A mold apparatus for forming a core sheet by punching a strip to which a piercing punch and a blanking punch are successively transferred from an upper portion of a lower mold and laminating the core sheet; and an adhesive applying agent for applying an adhesive to the upper surface of the strip while the punch Wherein the adhesive application device is mounted between the piercing punch and the blanking punch or is partially inserted into the internal space of the blanking punch or mounted on one side of the upper mold to which the strip is supplied, The apparatus may further comprise: Even if an adhesive ejecting portion for ejecting the adhesive to one or more of the coating point; An adhesive supply unit for supplying the stored adhesive to the adhesive discharge unit by applying a predetermined pressure; And a cam driving part for moving the adhesive discharging part up and down. Therefore, it is possible to efficiently use the working space while greatly reducing the manufacturing time and equipment cost required for manufacturing the laminated core, and to quickly and stably apply the adhesive at the desired coating point do.

Description

[0001] APPARATUS FOR MANUFACTURING LAMINATED CORE BY ADHESIVE TYPE [0002]

The present invention relates to an apparatus for producing a laminated core. More particularly, to an adhesive laminated core manufacturing apparatus for laminating a core sheet by an adhesive lamination method by applying an adhesive to a strip moving in one progressive mold apparatus.

In the conventional motor core lamination method, a core strip is continuously formed by punching a slot portion, a tooth, and the like sequentially to a strip supplied to a progressive mold apparatus, and finally, The motor core is manufactured by stacking and fixing a predetermined number of sheets. A method of fixing a core sheet is known as an embossing lamination method in which embossing is formed on each core sheet and the core sheets are pressed and bonded to each other at the time of lamination, as disclosed in JP-A-10-2005-0026882.

In this embossing laminated motor core, since the shape of male and female protrusions formed on the base material is fastened in a forced fit manner, the steel core acts like a speed restricting jaw installed on the road, resulting in loss of iron loss and magnetic flux density. In addition, there is a problem that the drop rate is lowered and vibration noise occurs due to the resonance phenomenon.

In order to solve such a problem, in the adhesive lamination system, in Patent Publication No. 10-0119014, a die supported by a lower mold and a strip positioned at the upper portion of the die and moving upward and downward and supplied to the upper surface of the die A punch holder for supporting the punch at the outer periphery of the punch under the support of the upper mold, an adhesive supply means for supplying an adhesive to the upper side or the side of the strip, And a laminated ring supported by a clamp of the side pressure for a predetermined height.

In addition, in Japanese Patent Application Laid-Open No. 10-1164803, when a press mold is operated, a certain amount of bond is put into a strip attached to a lamination separating jig attached to a mold, and when the desired number of punches is reached, And then the laminate separator jigged up when it is started again is reintroduced, and the product is repeatedly produced by the desired number of times.

However, in the above-mentioned conventional adhesive lamination system, in applying the adhesive, the adhesive is simply sprayed on the upper side or the side surface of the strip in the adhesive supply means, or the adhesive is dropped in the lake connected to the lamination separation jig, It takes a lot of time, and the application is not accurately performed at the application point where the adhesive is to be applied, and the adhesive may scatter around and adversely affect the mold.

Accordingly, the present inventor intends to propose a more improved adhesive laminated core manufacturing apparatus to solve the above problems.

An object of the present invention is to provide a method and apparatus capable of improving the efficiency of a motor and applying a stable adhesive with excellent shape tolerance and tightening strength such as squareness and flatness as well as greatly reducing the loss of iron loss and magnetic flux density by applying the adhesive lamination system And to provide an adhesive laminated core manufacturing apparatus.

The apparatus for producing a laminated core according to the present invention comprises:

A mold apparatus for forming a core sheet by laminating a piercing punch and a blanking punch which are composed of an upper mold and a lower mold and are sequentially transferred from an upper portion of a lower mold to laminate the core sheet, And an adhesive application device for applying an adhesive to the upper surface of the strip while the strip is being struck,

The adhesive applying device may be mounted between the piercing punch and the blanking punch or may be partially inserted into the inner space of the blanking punch or mounted on one side of the upper mold to which the strip is supplied,

Wherein the adhesive application device comprises: an adhesive discharge unit for discharging an adhesive to at least one application point of a strip bottom surface on which the core sheet is formed; An adhesive supply unit for supplying the stored adhesive to the adhesive discharge unit by applying a predetermined pressure; And a cam driving part for moving the adhesive discharging part up and down.

In the present invention, the adhesive discharging portion includes a discharging portion main body and a discharging portion cover, a through hole corresponding to the applying point is formed in the discharging portion main body, a discharging pin is inserted into the through hole, A nozzle protruding from one side of the through hole, a nozzle support coupled with the nozzle, and a nozzle spring elastically supported by the nozzle support and the step formed in the through hole.

In the present invention, the ejection pin may be formed with a diffusion preventing hole in the circumferential direction at a distance from the discharge tube through which the adhesive is discharged.

In the present invention, the cam driving portion is constituted by a cam member that moves in the horizontal direction to move the adhesive discharging portion up and down in the vertical direction, and a driving device that drives the cam member, and the first surface of the cam member, A convex portion and a concave portion formed by successively arranging an inclined plane and a plane in correspondence with the second surface of the first substrate.

In the present invention, the driving device counts the number of punching operations of the punches, and moves the cam member forward or backward so that the adhesive application is not performed a predetermined number of times.

According to the present invention, by using the adhesive lamination method, it is possible to efficiently utilize the working space while greatly reducing the manufacturing time and equipment cost required for producing the laminated core, and to quickly and stably apply the adhesive at the desired application point, Thereby contributing to an improvement in productivity.

1 is a sectional view of a laminated core production apparatus according to the present invention.
2 is a perspective view showing a main structure of a strip layout and a laminated core manufacturing apparatus according to a first embodiment of the present invention.
3 is a perspective view showing a schematic structure of an adhesive applying apparatus according to a first embodiment of the present invention.
4 is a partial cross-sectional view of the upper mold cut along the line x-x 'in Fig.
5 is a perspective view showing a main structure of a strip layout and a laminated core manufacturing apparatus according to a second embodiment of the present invention.
6 is a partial cross-sectional view of the upper mold cut along the line x-x 'in FIG.
7 is a perspective view showing a main structure of a strip layout and a laminated core manufacturing apparatus according to the third embodiment of the present invention.
8 is a cross-sectional view taken along the line xx 'in Fig.

1 is a sectional view of a laminated core production apparatus according to the present invention. Referring to FIG. 1, the apparatus for manufacturing a laminated core according to an embodiment of the present invention may be used in a press working method in which a continuous operation is performed on strips 1 sequentially moved.

The mold apparatus 10 is preferably a progressive mold apparatus and comprises an upper mold 11 and a lower mold 12. [ The upper mold 11 is disposed on the upper side of the lower mold 12 and moves in the direction of the lift v toward the lower mold 12. [ The movement of the upper mold 11 is performed as the upper mold 11 is mounted on the press and the press is driven. At the upper part of the lower mold 12, the strip 1 moves along the advancing direction f.

The upper mold 11 includes piercing punches 21, 22, 23 and 24 and blanking punches 25 for punching the strip 1, a punch plate 20 for mounting the punches, And a punch holder 30 for supporting the punch holder 30 from above. Although FIG. 1 shows four piercing punches 21, 22, 23, and 24, the number and shape of the piercing punches may vary depending on the shape and size of the core to be manufactured Of course.

The upper mold 11 is provided with a punch backing plate 35 for supporting the punch between the punch holder 30 and the punch plate 20 and a punch backing plate 35 for guiding the punch to move to the correct position, 1 may be provided in the stripper plate 40.

The upper mold 11 of the mold apparatus 10 according to the present invention is equipped with an adhesive applicator 100 for applying an adhesive on the upper surface of the strip 1. [ The adhesive applying apparatus 100 can be mounted at various positions of the upper mold 11, as shown in Fig.

1, the adhesive applicator 100 may be positioned on the left side of the piercing punch 21 or between the piercing punch 24 and the blanking punch 25 and inserted into the blanking punch 25, You may. In some cases, it is also possible for the adhesive applicator 100 to be positioned between the piercing punches 21, 22, 23, Further, two or more adhesive application apparatuses 100 may be selected and configured as a plurality of the mold apparatuses 10.

Here, when the adhesive applying device 100 is positioned between the piercing punches 21, 22, 23, 24 and the blanking punch 25 or inserted into the blanking punch 25, the piercing The air injecting apparatus 200 may be mounted between the punch 24 and the adhesive applying apparatus 100. The air injecting apparatus 200 injects air into the punching punches 21, 22, 23, 24 before the adhesive applying apparatus 100 applies the adhesive to the upper surface of the strip 1, It is possible to apply a good adhesive by removing foreign substances such as oil which may be deposited on the application point when the strip 1 is punched by the adhesive.

The lower mold 12 includes a die holder 50 mounted on the press and holding the entire center of the lower mold 12, a die plate 60 seated on the upper side of the die holder 50, And a die backing plate 55 positioned between the die plate 60 and the die plate 60 to support the pressure applied to the die plate 60.

In the lower mold 12, a cylindrical rotary die 70 having a hollow formed at a position corresponding to the blanking punch 25 is mounted. The rotary die 70 includes a blanking die 71 that is punched by the blanking punch 25 and separated from the strip 1 and laminated with a core sheet and a squeeze ring 72 for discharging the produced laminated core 2 to the outside, .

The laminated core manufacturing process using the mold apparatus 10 according to the present invention is composed of a piercing process, a bonding process, a blanking process, and a laminating process.

In the piercing step, a basic shape such as a slot, a through hole, and an inner diameter except the core outer shape is formed on the strip 1. At this time, the strip 1 is pierced by the piercing punches 21, 22, 23, and 24, which are mounted on the upper mold 11 and move up and down while being sequentially shifted pitch by pitch in the mold apparatus 10 The piercing process is performed.

In the bonding step, an adhesive is applied to the upper surface of the strip 1. The application of the adhesive is performed by the adhesive application device 100 mounted on the upper mold 11 and the adhesive is applied at least at one or more application spots on the upper surface of the strip 1 on which the core sheet is formed.

This bonding process may be performed at a stage before the piercing process or before the blanking process after the piercing process, depending on the position of the adhesive applicator 100 described above. It may also be performed simultaneously with the blanking process.

In the blanking process, a blanking process is performed in which the core sheet is pulled out of the core to separate the core sheet from the strip 1. This blanking process is performed by moving the blanking punch 25 mounted on the upper mold 11 of the mold apparatus 10 in the vertical direction and punching the strip 1.

The core sheet produced according to the blanking process finally forms the laminated core 2 through the lamination process. Specifically, the core sheet separated through the blanking process is inserted into the blanking die 71 provided on the rotary die 70, and is laminated on the laminated core sheet group, and the bonded laminated core 2 is squeezed And is then pushed into the ring 72 sequentially and discharged to the outside.

Here, although not shown in FIG. 1, a rotation driving device (not shown) may be provided, and the rotation driving device rotates the rotating core before the separated core sheet is stacked on the core sheet stacked in the blanking die 71 The die 70 is rotated in the circumferential direction by a predetermined angle. As a result, the lamination is performed by changing the position where each core sheet is adhered to the core sheet group, and the influence of the minute thickness deviation that may occur between the core sheets can be solved.

Hereinafter, the structure of the adhesive applying apparatus 100 according to the embodiment of the present invention and the bonding process at various positions will be described in more detail.

FIG. 2 is a perspective view showing a main structure of a laminated core manufacturing apparatus according to a first embodiment of the present invention, and FIG. 3 is a perspective view showing a schematic structure of an adhesive applying apparatus according to a first embodiment of the present invention.

1 and 2, in the apparatus for producing a laminated core according to the first embodiment of the present invention, the adhesive applying apparatus 100 is mounted in the upper mold 11 between the piercing punch 24 and the blanking punch 25 . That is, in the first embodiment of the present invention, the bonding process is performed after the piercing process is completed, and then the blanking process and the lamination process are performed.

An air injection device 200 is mounted between the adhesive applying device 100 and the piercing punch 24 to perform a surface treatment process for removing foreign substances on the application point of the upper surface of the strip 1 prior to the bonding process .

3, an adhesive applying apparatus 100 according to the present invention includes an adhesive supplying unit 101, an adhesive dispensing unit 102 for discharging the adhesive supplied from the adhesive supplying unit 101 toward the upper surface of the strip 1, And a cam driving part 103 for moving up and down the adhesive discharging part 102 to control the execution and stop of the application of the adhesive.

The adhesive supply unit 101 comprises a pressure device 110 for pressurizing the adhesive stored in a storage tank (not shown) with compressed air or the like, and the pressurized adhesive is supplied to the adhesive supply tube 111 at a supply speed determined by the pressure And is sent to the adhesive discharge unit 102 through the adhesive discharge unit 102. In this case, it is preferable to set a certain amount of adhesive to be supplied to the adhesive discharging unit 102 when the punch is lowered and the strip 1 is hit through adjustment of the pressing time and intensity of the pressing apparatus 110.

The adhesive dispensing portion 102 includes a discharging portion main body 120 for discharging the adhesive introduced through the adhesive supplying tube 111 to the outside, And a discharging portion support pin 140 which is coupled to the discharging portion lid 130 and facilitates the ascending and descending of the adhesive discharging portion 102.

The cam driving unit 103 includes a cam member 160 that moves in the horizontal direction to move the adhesive discharging unit 102 up and down in the vertical direction and a cam member 160 that provides power to the cam member 160, And a drive unit 170 for controlling the motor. The driving device 170 may be a known actuator such as a fluid cylinder or a solenoid device.

On the other hand, the control box 180 electrically connected to the driving device 170 receives the counting information regarding the number of punching operations and controls the advancing / retreating movement of the cam member 160 to thereby produce a laminated core having a predetermined thickness have. At this time, the control box 180 may also control the pressurizing device 110 to interrupt the supply of the adhesive for a predetermined time.

The control unit 180 controls the drive unit 170 to move the cam member 160 immediately before the 50th, 100th, and 150th punches, for example, in order to manufacture a laminated core in which 50 core sheets are stacked. The adhesive discharge portion 102 is raised so that the adhesive is not applied to the core sheet, so that a laminated core having a desired thickness can be obtained. At this time, it is preferable that the supply of the adhesive by the pressurizing device 110 is temporarily stopped through the control of the control box 180.

4 is a partial cross-sectional view of the upper mold cut along the line x-x 'in Fig. Referring to FIG. 4, an adhesive applicator 100 for supporting an adhesive on the upper surface of a strip 1 supported by an upper mold 11 is disclosed.

The discharge part main body 120 has a substantially cylindrical shape and protrudes below the punch plate 20 through the punch plate 20. A flange portion 121 is formed on the upper portion of the discharge portion main body 120 along the circumference of the outer circumferential surface of the discharge portion main body 120. The flange portion 121 is seated and supported by the first seating portion 26 provided with the punch plate 20.

The discharge unit main body 120 is formed with a through hole 122 extending from the top to the bottom and the discharge pin 150 is inserted into the through hole 122. The position of the through hole 122 may correspond to the point where the adhesive is to be applied on the upper surface of the strip 1 on which the core sheet is formed. The reduced diameter portion 123 is provided at the end of the through hole 122 and the first step portion 124 and the second step portion 125 are formed at the upper and lower portions of the reduced diameter portion 123, respectively.

The ejection pin 150 has a nozzle 151 having a cylindrical shape and a third stepped portion 152 formed to have an enlarged outer diameter and a nozzle 151 coupled to the upper portion of the nozzle 151 and supported by the first stepped portion 124 A nozzle spring 155 having a ring shape and a nozzle spring 156 fitted to the outer periphery of the nozzle 151 and supported at both ends between the second stepped portion 125 and the third stepped portion 152, .

The ejection pin 150 protrudes from the bottom surface of the ejection unit main body 120 by the adjustment of the nozzle spring 156 and the nozzle support 155. At this time, an instantaneous external pressure is applied to the protruded ejection pin 150 The ejection pin 150 is pushed into the nipping space 126 provided at the lower part according to the elastic action of the ground nozzle spring 156 and then returns to its original state.

When the upper mold 11 is positioned at the bottom dead center by the press driving, the nozzle spring 156 of the ejection pin 150 abuts against the strip 1 in a contracted state, And serves to prevent the strip 1 and the discharge pin 150 from being damaged due to the impact.

A hollow discharge pipe 153 is provided in the discharge pin 150. An adhesive supply tube 111 is inserted into the discharge pipe 153 and the adhesive supplied in accordance with the operation of the pressure device 110 is discharged to the outside through the discharge pipe 153.

Sparge prevention holes 154 are formed in the upper part of the discharge pin 150 in the circumferential direction at a distance from the discharge pipe 153. This spread preventing hole 154 prevents the adhesive discharged from the discharge pipe 153 from spreading out of a certain range at the application point on the upper surface of the strip 1, and enables accurate and good application of the adhesive.

A guide groove 127 is formed in the upper part of the discharge part main body 120. The guide groove 127 is formed in the guide groove 127 so that one end of the adhesive supply tube 111 is inserted into the discharge tube 153 inside the discharge part main body 120 Provide a passageway to allow. The guide grooves 127 may be formed not only on the discharge unit main body 120 but also on the lower portion of the discharge unit cover 130 and may be formed on both the discharge unit main body 120 and the discharge unit cover 130 It is possible.

The discharge section lid 130 is located in the punch backing plate 35 and is engaged with the upper portion of the discharge section main body 120 to form the body of the adhesive dispensing section 102.

A first cam surface 131 is formed on the upper surface of the discharge section lid 130. The first cam surface 131 has a convex portion 131a and a concave portion 131b which are formed by continuously arranging the inclined plane and the plane. The first cam surface 131 forms a cam structure together with the second cam surface 161 formed on a lower surface of the cam member 160 to be described later.

The discharge part support pin 140 is inserted into the punch holder 30 and is engaged with the discharge part lid 130 and is connected to the discharge part main body 120 and the discharge part lid 130 together with the support springs 142 fitted in the outer part. And a discharge unit body coupled to the discharge unit body.

The support spring 142 is supported between the first end 141 formed on the discharge portion support pin 140 and the second end portion 31 formed in the punch holder 30 to have an elastic function. That is, the support spring 142 is in a compressed state in FIG. 4, and the accumulated elastic force provides a force to pull up the discharge part body when the cam member moves back and forth, Will help smooth up.

The cam member 160 has a plate-like shape and a second cam surface 161 formed on the upper surface thereof. The inclined plane and the plane are continuously arranged so that the second cam surface 161 corresponds to the first cam surface 131 to form the convex portion 161a and the concave portion 161b. At this time, it is preferable that the inclined surface has an inclination angle of less than a certain angle for smooth movement of the cam member 160.

The second cam surface 161 forms a cam structure with the first cam surface 131 as described above. That is, as the cam member 160 advances or retracts in the horizontal direction, the adhesive discharge portion 102 is vertically raised or lowered.

4, in the cam lowered state in which the convex portion 131a of the first cam face 131 and the convex portion 161a of the second cam face 161 are opposed to each other, the support spring 31 is compressed The adhesive discharge portion 102 is lowered. The cam member 161 moves back and forth again so that the convex portion 131a and the concave portion 131b of the first cam face 131 are engaged with the concave portion 161b and the convex portion 161a of the second cam face 161 The adhesive discharging portion 102 is moved upward by the elastic force of the compressed supporting spring 142. As a result,

In the case of the cam lowering state in which the adhesive discharging portion 102 is lowered first, the strip 1 and the lower portion of the upper mold 11 are separated from the bottom dead center of the upper mold 11, The adhesive application can be performed by bringing the discharge pins 150 into contact with each other. However, in the cam elevated state in which the adhesive discharging portion 102 is lifted, the distance between the strip 1 and the discharging pin 150 at the bottom dead center of the upper mold 11 is distant from each other, .

On the other hand, a guide hole 162 through which the discharge part support pin 140 passes is formed at the center of the cam member 160. The guide hole 162 guides the horizontal movement of the cam member 160 and limits the moving distance of the cam member 160. The guide hole 162 can be formed in the shape of a long hole. At this time, it is preferable that the length of the long hole is determined such that the cam rising or cam falling state is maintained when the cam member 160 is maximally advanced or retracted, and the moving distance is minimized.

FIG. 5 is a perspective view showing a main structure of a laminated core manufacturing apparatus according to a second embodiment of the present invention, and FIG. 6 is a partial cross-sectional view of an upper mold cut along the line x-x 'in FIG.

1 and 5, the apparatus for manufacturing a laminated core according to the second embodiment of the present invention is configured such that a part of the adhesive applying apparatus 100 is accommodated in the blanking punch 25 and a bonding process is performed together with the blanking process Structure. Here, the adhesive applicator 100 may have the same configuration as that of the first embodiment described above, but differs in the position where the adhesive applicator 100 is mounted.

6, the adhesive applying apparatus 100 is composed of an adhesive supplying unit 101, an adhesive discharging unit 102, and a cam driving unit 103, and detailed detailed configurations thereof are the same as those of the first embodiment. A description thereof will be omitted.

The blanking punch 25 is fixedly installed in the punch plate 20 of the upper mold 11. A hollow 25a is formed in the blanking punch 25 and a seating portion 25b is provided in the upper portion along the inner circumferential surface. At this time, in the second embodiment of the present invention, the discharging portion main body 120 is inserted into the hollow 25a formed in the blanking punch 25 and is seated in the seating portion 25a in the cam descending state.

The discharge pin 150 is brought into contact with the strip 1 at the moment when the blanking punch 25 strikes the strip 1 and at the same time the elastic force of the nozzle spring 156, The adhesive is applied to the upper surface of the strip 1 by discharging the adhesive onto the upper surface of the strip 1. [

Fig. 7 is a perspective view showing the main structure of a laminated core production apparatus according to the third embodiment of the present invention, and Fig. 8 is a sectional view taken along the line x-x 'in Fig.

1 and 7, an apparatus for manufacturing a laminated core according to a third embodiment of the present invention is configured to perform a bonding process prior to a piercing process. The apparatus 300 includes a housing 300 having a separate adhesive applicator 100 And is attached to the side surface of the upper mold 11 into which the strip 1 flows. As a structure for performing the bonding process in advance of the piercing process, the adhesive applicator 100 is structured in the same manner as in the first embodiment, without the separate housing 300, It is possible to mount it in the upper mold 11. [

Referring to FIG. 8, the adhesive applying apparatus 100 includes an adhesive supplying unit 101, an adhesive discharging unit 102, and a cam driving unit 103, and detailed detailed configurations thereof are the same as those of the first embodiment. A description thereof will be omitted.

The housing 300 includes a discharge port pocket 310 and a bracket 320. The discharging portion pocket 310 is formed with a hollow 311 therein to insert the discharging portion main body 120. The upper portion of the discharging portion pocket 310 has a seating portion 312 formed along the inner circumferential surface thereof, The flange portion 121 of the discharge portion main body 120 is seated.

The bracket 320 is coupled to the upper portion of the discharge port pocket 310 and the cam space portion 321 for receiving the discharge port support 130 and the cam member 140 is provided below the bracket 320 . A discharge pipe support pin 140 is inserted into the bracket 320 and a support pipe 323 is formed to support one end of the support spring 142. And an engaging portion 322 for engaging with the upper mold 11 and the driving device 170 may be formed on the side surface of the bracket 320.

In the structure in which the adhesive applying apparatus 100 is accommodated in the housing 200 and attached to the side surface of the upper mold 11 as described above, since the bonding process is performed before the piercing process is performed, a separate air injection apparatus 200 Need not be provided. However, in order to maintain the applied state of the applied adhesive in the subsequent piercing and blanking process, escape grooves must be provided on the bottom surface of the stripper plate 40 at each pitch corresponding to the application point.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that the foregoing description is merely illustrative of the present invention and that the scope of the present invention is defined by the claims set forth below and that all changes and modifications that come within the scope of the present invention are included in the scope of the present invention.

1: Strip 2: Laminated core
10: mold apparatus 11: upper mold
12: Lower mold 20: Punch plate
21, 22, 23, 24: Piercing punch
25: blanking punch 30: punch holder
35: punch backing blit 40: stripper plate
70: rotating die 71: blanking die
72: Squeeze ring 100: Adhesive application device
101: Adhesive supply part 102: Adhesive discharge part
103: a cam driving part 110: a pressing device
111: adhesive supply tube 120: discharge unit main body
121: flange portion 122: through hole
123: an axial neck portion 124: a first step portion
125: second step 130: discharge part cover
131: first cam face 140: discharge part support pin
141: first end 142: support spring
150: Discharge pin 151: Nozzle
152: Third step 153: Discharge tube
154: spread prevention hole 155: nozzle base
156: nozzle spring 160: cam member
161: second cam face 162: guide hole
170: Driving device 180: Control box
200: air injection device

Claims (8)

A mold apparatus for forming a core sheet and laminating the core sheet by forming a piercing punch and a blanking punch, which are composed of an upper mold and a lower mold and are sequentially transferred from an upper portion of the lower mold,
And an adhesive applicator mounted between the piercing punch and the blanking punch to apply an adhesive to the upper surface of the strip while the punch is punched out of the strip,
The adhesive application device comprises:
An adhesive discharging portion for discharging an adhesive to at least one application point of a top surface of the strip on which the core sheet is formed;
An adhesive supply unit for supplying the stored adhesive to the adhesive discharge unit by applying a predetermined pressure; And
And a cam driving part for moving the adhesive discharge part up and down,
Wherein the adhesive dispensing portion includes a discharge portion main body and a discharge portion lid,
A through hole corresponding to the application point is provided in the discharge part main body, a discharge pin is inserted into the through hole,
Wherein the discharge pin includes a nozzle protruding from one side of the through hole,
Wherein the cam driving unit is composed of a cam member that moves in the horizontal direction to move the adhesive discharging unit up and down in the vertical direction and a driving device that drives the cam member,
Wherein the first surface of the cam member includes a convex portion and a concave portion formed by successively arranging an inclined surface and a plane in correspondence with a second surface of the discharge portion lid,
Further comprising a discharge portion support pin installed on the upper mold and coupled with the discharge portion cover, wherein the discharge portion support pin passes through a guide hole having a long hole formed in a central portion of the cam member. Device. A mold apparatus for forming a core sheet and laminating the core sheet by punching a strip which is composed of an upper mold and a lower mold and in which a piercing punch and a blanking punch mounted on an upper mold are sequentially transferred from an upper mold,
And an adhesive applicator for partially applying the adhesive to the upper surface of the strip while the punch is engaged with the strip,
The adhesive application device comprises:
An adhesive discharging portion for discharging an adhesive to at least one application point of a top surface of the strip on which the core sheet is formed;
An adhesive supply unit for supplying the stored adhesive to the adhesive discharge unit by applying a predetermined pressure; And
And a cam driving part for moving the adhesive discharge part up and down,
Wherein the adhesive dispensing portion includes a discharge portion main body and a discharge portion lid,
A through hole corresponding to the application point is provided in the discharge part main body, a discharge pin is inserted into the through hole,
Wherein the discharge pin includes a nozzle protruding from one side of the through hole,
Wherein the cam driving unit is composed of a cam member that moves in the horizontal direction to move the adhesive discharging unit up and down in the vertical direction and a driving device that drives the cam member,
Wherein the first surface of the cam member includes a convex portion and a concave portion formed by successively arranging an inclined surface and a plane in correspondence with a second surface of the discharge portion lid,
Further comprising a discharge portion support pin installed on the upper mold and coupled with the discharge portion cover, wherein the discharge portion support pin passes through a guide hole having a long hole formed in a central portion of the cam member. Device. A mold apparatus for forming a core sheet and laminating the core sheet by punching a strip which is composed of an upper mold and a lower mold and is sequentially conveyed from an upper portion of a lower mold by a piercing punch and a blanking punch mounted on an upper mold,
And an adhesive applicator mounted on one side of the upper mold to which the strip is supplied and applying an adhesive to the upper surface of the strip while the punches are being driven on the strip,
The adhesive application device comprises:
An adhesive discharging portion for discharging an adhesive to at least one application point of a top surface of the strip on which the core sheet is formed;
An adhesive supply unit for supplying the stored adhesive to the adhesive discharge unit by applying a predetermined pressure; And
And a cam driving part for moving the adhesive discharge part up and down,
Wherein the adhesive dispensing portion includes a discharge portion main body and a discharge portion lid,
A through hole corresponding to the application point is provided in the discharge part main body, a discharge pin is inserted into the through hole,
Wherein the discharge pin includes a nozzle protruding from one side of the through hole,
Wherein the cam driving unit is composed of a cam member that moves in the horizontal direction to move the adhesive discharging unit up and down in the vertical direction and a driving device that drives the cam member,
Wherein the first surface of the cam member includes a convex portion and a concave portion formed by successively arranging an inclined surface and a plane in correspondence with a second surface of the discharge portion lid,
Further comprising a discharge portion support pin installed on the upper mold and coupled with the discharge portion cover, wherein the discharge portion support pin passes through a guide hole having a long hole formed in a central portion of the cam member. Device. 3. The method according to claim 1 or 2,
Further comprising an air spraying device for spraying air between the piercing punch and the adhesive applying device to remove foreign substances on the application point. delete 4. The method according to any one of claims 1 to 3,
Wherein the discharge pin has a spread preventing hole formed in a circumferential direction at a distance from the discharge tube through which the adhesive is discharged. delete 4. The method according to any one of claims 1 to 3,
Wherein the driving device counts the number of punching steps of the punch and advances and retreats the cam member so that adhesive application is not performed a predetermined number of times.

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