KR20040039726A - Apparatus for manufacture of pass core and manufactured pass core using the same - Google Patents

Abstract

PURPOSE: An apparatus for fabricating a path core and a path core thereby are provided to reduce a manufacturing cost and a leadtime by forming simultaneously a steel core of the path core and projections and grooves on both sides of the path core. CONSTITUTION: An apparatus for fabricating a path core includes a punch(110) and a die(120). The punch(110) includes a top projection formation part and a top lamination part(115). The top projection formation part and the top lamination part(115) are formed on a bottom side of the punch. The top projection formation part includes a projection and a groove. The projection is projected to one side of a silicon steel sheet. The groove is formed on a rear side of the projection. The top lamination part is used for forming a path core by laminating a steel core(4). The die(120) includes a bottom projection formation part(121) and a bottom lamination part(125). The bottom projection formation part(121) and the bottom lamination part(125) are formed on a top side of the die. The top projection formation part includes a projection and a groove. The projection is projected to the other side of the silicon steel sheet. The groove is formed on a rear side of the projection. The top lamination part is used for forming the path core by laminating the steel core(4).

Description

Apparatus for manufacture of pass core and manufactured pass core using the same}

The present invention relates to a high pressure transformer, and more particularly, to a manufacturing apparatus of a pass core for producing a pass core that is installed to prevent the core of the high voltage transformer is oversaturated, and a pass core manufactured using the same.

In general, a high voltage transformer is a device installed in a microwave oven or a monitor to boost a home voltage, usually 100V to 220V, to a high voltage.

1 is a perspective view showing a general high-voltage transformer, Figure 2 is a partial cross-sectional perspective view showing a pass core according to the prior art.

As shown in FIG. 1, the conventional high pressure transformer 1 has a winding hole 13 bisected by a winding portion 12 at a central portion thereof, and a core 11 having a bracket 17 installed on a lower side thereof. And a path disposed between the first and the secondary coils 14 and 16 and the first and the secondary coils 14 and 16 wound on the upper and lower sides of the winding hole 13 to leak the magnetic flux flowing in the core 11. The core 18 is comprised.

At this time, the core 11 is composed of a plurality of silicon steel sheet iron core (11a) in close contact with the stack, the primary coil 14 and the secondary coil 16 is appropriately wound corresponding to the voltage boost value The primary coil 14 and the secondary coil 16 are provided with a first terminal 15 and a second terminal (not shown), and a pass core 18 and a secondary coil. Between the 16, a filament coil (not shown) for obtaining the filament voltage which is an oscillation voltage is arrange | positioned.

In addition, two pass cores 18 are installed in the winding hole 13 partitioned by the winding unit 12 so that the primary coil 14 and the secondary coil 16 are separated from each other. The core 18 is formed by laminating a plurality of rectangular steel plate iron cores 19,

The pass core 18 is installed in inverse proportion to the magnetic saturation amount of the core 11, that is, the size of the core 11, to prevent the core 11 from being oversaturated.

In order to produce such a pass core 11, as shown in FIG. 2, a silicon steel disc is first cut into a predetermined standard by pressing, and a plurality of standardized and cut iron cores 19 are laminated and laminated. Fabrication of the pass core 18 is achieved by winding and fixing a predetermined portion of the silicon steel sheet iron core 19 that has been wound with the tape 20, and wound and insulated the silicon steel sheet iron cores fixed by the tape 20 with insulating paper 21. Is done.

However, the process of laminating the above-described silicon steel sheet iron core and taping the laminated silicon steel sheet iron core is being performed by hand one by one, and an additional number of personnel required for the work is required, and the work process is increased and required for manufacturing. It is very unreasonable because it takes a lot of time, and also, if the number of cores of silicon steel sheet of the pass cores laminated due to the operator's error is different, the electrical characteristics of the high-voltage transformer itself are lowered, which lowers the performance of the product. There was this.

In addition, in the silicon core of the pass core manufactured by the conventional technique, the direction of the burrs formed in the cut portions of the silicon steel sheet cut by the mold are formed in opposite directions, respectively, thereby deteriorating the electrical characteristics of the pass core itself, thereby improving the performance of the pass core itself. There was a problem affecting a lot.

The present invention has been made in order to solve the above problems, while manufacturing the iron core of the pass core to be installed in the high-voltage transformer and at the same time forming the binding projections and binding grooves on one side and the other side of the pass core, the pass core is laminated, An object of the present invention is to provide a pass core manufacturing apparatus and a pass core manufactured using the same, which maintains a constant direction of burrs generated when producing iron cores of a pass core.

1 is a perspective view showing a general high voltage transformer.

Figure 2 is a partial cross-sectional perspective view showing a pass core according to the prior art.

Figure 3 is a perspective view schematically showing an apparatus for manufacturing a pass core according to the present invention.

Figure 4a is a perspective view showing a pass core laminated by the apparatus for manufacturing a pass core according to the present invention.

Figure 4b is a side view showing a pass core laminated by the apparatus for manufacturing a pass core according to the present invention.

Figure 5 is a partial cross-sectional perspective view showing a pass core according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: silicon steel disc 2: binding protrusion

3: binding groove 4: iron core

4a: version 5: passcore

100: mold 110: punch

111, 121: upper and lower binding protrusion forming portion 112: base

113, 124: upper and lower protrusions 114, 123: upper and lower grooves

115, 125: upper and lower laminated portion 116: limiting projection

117: cutting punch 118, 128: pressing projection

119: laminated groove 120: die

122: guide protrusion 126: cutting hole

Apparatus for manufacturing a pass core according to the present invention and a pass core manufactured by using the same according to the present invention, to form a binding protrusion protruding to one surface of the silicon steel disc to be transferred to one side of the bottom and at the same time the back of the binding protrusion An upper binding protrusion forming portion for forming a binding groove in the upper portion is formed, and an upper layer for forming a pass core by cutting a silicon steel disc transferred to the other side to produce a pair of iron cores and simultaneously stacking one of the cut pairs of iron cores. A punch in which an additional portion is formed; The lower binding protrusion forming part corresponding to the upper binding protrusion forming part is formed on one side of the upper surface, and forms a binding protrusion protruding to the other surface of the silicon steel disc being transferred, and at the same time, forms a binding groove on the back surface of the binding protrusion, And a die having a lower stack formed on the other side of the pair of the iron cores cut by the upper stack to form a pass core.

In addition, the upper binding protrusion forming unit is provided with a base protruding to the lower surface of the punch, the upper protrusion forming a protrusion on one surface of the silicon steel disc to be transferred and the binding protrusion formed by the lower binding protrusion forming portion The upper groove is formed is inserted; The lower binding protrusion forming unit has a plurality of guide protrusions for guiding movement of the silicon steel disc and the base, and a lower groove into which a binding protrusion formed by the upper protrusion is inserted is formed, and corresponds to the upper groove. It is preferable that a lower protrusion is formed to form a protrusion at the other surface of the silicon steel disc.

In addition, the upper laminated portion, the limiting projection for limiting the movement of the silicon steel disc, the limiting projection is separated by the width of the iron core, the width of the iron core is formed to cut the silicon steel disc stopped by the limiting projection An upper lamination groove in which a cutting punch and an iron core in contact with the limiting protrusion of the iron cores cut by the cutting punch are laminated; The lower stacking part may be connected to the cutting punch formed in the upper stacking part to cut a silicon steel disc, and a cutting hole in which the cut iron cores are stacked is formed.

In addition, a first pressing protrusion corresponding to a binding groove formed in the iron core cut at the end of the cutting punch is formed, and on one side of the cutting hole, a second pressing protrusion corresponding to the binding groove of the iron core stacked in the upper lamination groove is formed. Formed; The cutting punch cuts the silicon steel disc and simultaneously presses the binding groove of the iron core in which the first pressing protrusion is stacked in the cutting hole, thereby inserting the binding protrusion of the cut iron core into the binding groove of the other iron core positioned below the cutting punch. Preferably, the second pressing protrusion presses the binding groove of the iron core stacked on the upper laminated groove to insert the binding projection of the iron core cut into the binding groove of the other iron core positioned on the upper pressing groove.

In addition, a plurality of binding protrusions punched out on one surface is formed, and as the binding protrusions are punched out, a plurality of iron cores having the binding grooves formed on the rear surface of the binding protrusions are stacked.

Hereinafter, an apparatus for manufacturing a pass core and a pass core manufactured using the same according to the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, terms defined are defined in consideration of functions in the present invention, which may vary depending on the intention or custom of a person skilled in the art, and thus, limit the technical components of the present invention. It should not be understood.

3 is a perspective view schematically showing an apparatus for manufacturing a pass core according to the present invention, Figure 4a is a perspective view showing a pass core laminated by the apparatus for manufacturing a pass core according to the present invention, Figure 4b is a path according to the present invention It is a side view which shows the pass core laminated | stacked by the manufacturing apparatus of a core, and FIG. 5 is a partial sectional perspective view which shows the pass core which concerns on this invention.

As illustrated, the apparatus for manufacturing a pass core according to the present invention includes a punch 110 for forming an upper side of the mold 100, a die 120 for forming a lower portion of the mold 100, and a punch 110. And the die 120 are mounted on a conventional mold press machine (not shown).

The punch 110 is provided with an upper binding protrusion forming portion 111 for forming a binding protrusion 2 and a binding groove 3 on the silicon steel disc 1 to be transferred to one side of the bottom surface, and the binding protrusion 2 on the other side. ) And an upper stack for forming the pass core 5 by cutting the silicon steel disc 1 to which the binding grooves 3 are formed and transported, and stacking the pass core iron cores 4 cut from the silicon steel disc 1. Part 115 is formed.

The die 120 corresponds to the upper binding protrusion forming portion 111 on one side of the upper surface, and forms a binding protrusion 2 and a binding groove 3 on the silicon steel disc 1 to be transferred. 121 is provided, and on the other side, a pass core iron core 4 cut by the upper laminate 115 is laminated, and a bottom laminate portion on which the pass core iron core 4 cut is stacked on the upper laminate 115 ( 125) is provided.

Here, the upper binding protrusion forming portion 111 forms the binding protrusions 2 in the lower direction of the silicon steel original plate 1 at predetermined intervals at a predetermined portion of the silicon steel original plate 1 which is fed and supplied from one side. , The base 112 protruding from the lower surface of the punch 110 is formed to correspond to the lower binding protrusion forming portion 121 provided on the die 120, and is bound to the lower side of the silicon steel disc 1 to be transported. An upper groove 114 into which the upper protrusion 113 forming the protrusion 2 and the binding protrusion 2 protruding upward from the silicon steel disc 1 by the lower binding protrusion forming portion 121 are inserted. Is formed.

The lower binding protrusion forming unit 121 guides the movement of the silicon steel disc 1 supplied from one side and guides the movement of the base of the upper binding protrusion forming unit 111 of the punch 110. By forming the binding protrusions 2 in the upper direction of the silicon steel disc 1 to be supplied, a plurality of guide protrusions 122 for guiding the movement of the silicon steel disc 1 and the base 112 is formed, the upper portion The lower groove 123 is formed at a position corresponding to the upper protrusion 113 formed on the binding protrusion forming portion 111, and the binding protrusion (1) is formed on the upper side of the silicon steel disc 1 at a position corresponding to the upper groove 114. The lower protrusion 114 forming 2) is formed.

Here, the binding groove 3 formed in the silicon steel disc 1 is opposite to the binding protrusion 2 in which the binding protrusion 2 is punched out by the punch 110 and the die 120 in the silicon steel disc 1. It is formed in the binding protrusions 2 are produced by being punched by each protrusion, and the binding grooves 3 are formed so that the binding protrusions 2 formed on the other iron core is pressed and combined.

In addition, the upper lamination part 115 and the lower lamination part 125 cut and cut the silicon steel disc 1 to which the plurality of binding projections 2 are formed and transported to the upper side and the lower side in accordance with the specifications of the pass core 5. By stacking the cut iron core 4 to meet the standard of the pass core 5, the upper lamination section 115 moves the supplied silicon steel disc 1 to the core 4. An upper lamination groove in which the limiting projection 116 for restricting movement by the width, the cutting punch 117 for cutting the silicon steel disc 1 stopped by the limiting projection 116, and the cut iron core 4 are stacked. 119 is formed.

Here, the cutting punch 117 and the limiting projection 116 are spaced apart by the width of the iron core 4, so that when the iron core 4 is cut by the cutting punch 117, the cutting punch 117 is directed downward. The iron core 4 to be cut and the iron core 4 to be stacked in the upper lamination groove 119 by the cut iron core 4 are formed. That is, by cutting the inner portion of the silicon steel disc 1 to which the cutting punch 117 is conveyed, it is provided to produce a pair of iron cores 4 during a single cutting process.

In addition, an end portion of the cutting punch 117 is formed with a pressing protrusion 118 corresponding to the binding groove 3 formed in the iron core 4 to be cut, and the iron core 4 is cut and laminated to the lower lamination part 125. When the binding groove (3) of each iron core (4) to be stacked is pressed to the binding projection (2) of the iron core (4) which is cut into the binding groove (3) of the other iron core located below it is inserted and fixed.

In addition, the lower lamination part 125 corresponds to a cutting punch formed in the upper lamination part 115, and a cutting hole 126 in which the iron core 4 of the cut pass core is laminated is formed therein, and the cutting hole 126 is formed. The iron cores 4 that are stacked in the holes 126 are cut by the cutting punch 117 and provided to be stacked by the pressing force.

In addition, the pressing protrusion 118 is formed at the other side of the cutting hole 126 so that the iron core 4 cut adjacent to the iron core 4 cut by the cutting punch 117 is stacked in the upper lamination groove 119. The iron core 4 cut by the cutting punch 117 is stacked on the cutting hole 126 and the iron core 4 simultaneously cut adjacent to the iron core 4 cut by the cutting punch 117 is stacked on the top. It is provided to be stacked in the upper laminated groove 119 formed in the portion 115.

Accordingly, the operation of the pass core manufacturing apparatus according to the present invention will be described in detail through the embodiment.

First, a silicon steel disc 1 of a predetermined thickness (typically 0.3 to 0.5 mm) is interposed between guide protrusions 122 formed on the upper portion of the die 120 and continuously moved by a feeding means (not shown). And the protrusions 113 and 124 of the upper and lower binding protrusion forming portions 121 of the punch 110 and the die 120 and the recesses 114 and 123 to bind to predetermined portions of the silicon steel disc 1. The projection 2 and the binding groove 3 are formed.

Thereafter, the silicon steel disc 1 is moved to the upper and lower laminations 125, and the end of the silicon steel disc 1 being moved stops in contact with the limiting protrusion 116, and the cutting of the upper lamination 115 is performed. The punch 117 and the cutting hole 126 of the lower stack 125 are cut by linkage.

Here, the cutting punch 117 for cutting the silicon steel disc 1 is formed spaced apart by the width of the limiting projection 116 and the iron core (4), the cutting punch 117 and the cutting hole 126 is It is formed in the width of the iron core (4), the iron core (4) positioned in contact with the limiting projection 116 as the cutting punch 117 is lowered, and the iron core (4), that is, a pair of the lower portion of the cutting punch (117) The iron core 4 is produced, whereby the direction of the burr 4a formed in the cutout portion of the iron core 4 when the silicon steel disc 1 is cut by the cutting punch 117 is according to each iron core 4. It is formed constantly.

At this time, the iron core 4 positioned below the cutting punch 117 among the iron cores 4 cut by the cutting punch 117 is laminated in the cutting hole 126 formed in the lower stacking part 125, and the cutting punch ( The iron core 4, which is cut adjacent to the 117, is stacked in the laminated grooves 119 formed in the upper laminate 115. Here, each of the iron cores 4 to be stacked is a binding protrusion formed on each iron core 4 by the pressing protrusion 118 provided at the end of the cutting punch 117 and the pressing protrusion 118 provided at the lower stacking portion 125 ( 2) is inserted into the binding groove (3) of the other iron core (4) located in the upper and lower portions and each iron core is bound and combined.

Meanwhile, a sensor (not shown) which detects the case where the iron core 4 stacked in the lamination groove 119 and the cutting hole 126 is a predetermined number of units, and the iron core 4 which is connected to it and separated from the iron core 4 are separated. A separation device (not shown) is provided to separate the stacked iron cores 4 from the lamination grooves 119 and the cutting holes 126.

Thereafter, as shown in FIG. 5, the insulating paper 21 is wound outside the laminated iron core to complete the manufacture of the pass core.

Although described in detail with respect to preferred embodiments of the present invention as described above, those of ordinary skill in the art, without departing from the spirit and scope of the invention as defined in the appended claims Various modifications may be made to the invention. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

As described above, the apparatus for manufacturing a pass core according to the present invention and the pass core manufactured by using the same, produce an iron core of the pass core and simultaneously form binding protrusions and binding grooves on one side and the other side of the pass core to form an iron core. By cutting the cores and stacking iron cores at the same time to produce pass cores, the number of people used for work can be reduced, and the time required for manufacturing can be reduced due to the increased work process. By maintaining the direction constant, there is an effect that can improve the performance, reliability, etc. of the product by improving the electrical characteristics of the pass core itself.

Claims (5)

The upper binding protrusion forming part is formed to form a binding protrusion protruding to one surface of the silicon steel disc to be transferred to one side of the bottom and to form a binding groove on the back surface of the binding protrusion, and a pair of silicon steel discs are cut by cutting the silicon steel disc transferred to the other side. A punch in which an upper lamination part for forming a pass core is formed by laminating one of the pair of cut iron cores while producing an iron core; The lower binding protrusion forming part corresponding to the upper binding protrusion forming part is formed on one side of the upper surface, and forms a binding protrusion protruding to the other surface of the silicon steel disc being transferred, and at the same time, forms a binding groove on the back surface of the binding protrusion, And a die having a lower stack formed on the side of the pair of iron cores cut by the upper stack to form a pass core. The method of claim 1, The upper binding protrusion forming portion is provided with a base protruding to the lower surface of the punch, the upper protrusion forming a protrusion on one surface of the silicon steel disc to be transferred, and the binding protrusion formed by the lower binding protrusion forming portion is inserted. An upper groove is formed; The lower binding protrusion forming unit has a plurality of guide protrusions for guiding movement of the silicon steel disc and the base, and a lower groove into which a binding protrusion formed by the upper protrusion is inserted is formed, and corresponds to the upper groove. Apparatus for producing a pass core, characterized in that the lower protrusion is formed to form a protrusion on the other surface of the silicon steel disc. The method of claim 1, The upper lamination part is a cutting punch for cutting a silicon steel disc which is spaced apart by the width of the iron core and is limited to the limiting protrusion restricting the movement of the silicon steel disc, and the width of the iron core is stopped by the limiting protrusion. And an upper lamination groove in which the iron cores in contact with the limiting protrusions of the iron cores cut by the cutting punch are stacked. And the lower lamination part cuts a silicon steel disc in association with the cutting punch formed in the upper lamination part, and a cutting hole in which the cut iron cores are stacked is formed. The method of claim 3, The first pressing protrusion corresponding to the binding groove formed in the iron core is cut at the end of the cutting punch, and the second pressing protrusion corresponding to the binding groove of the iron core stacked in the upper laminated groove is formed on one side of the cutting hole ; The cutting punch cuts the silicon steel disc and simultaneously presses the binding groove of the iron core to which the first pressing protrusion is stacked in the cutting hole, thereby inserting the binding protrusion of the cut iron core into the binding groove of the other iron core positioned below the cutting punch. And pressurizing the binding grooves of the iron cores stacked on the upper lamination grooves to insert the binding protrusions of the cut iron cores into the binding grooves of other iron cores positioned on the upper lamination grooves. A plurality of cores are formed by the pass core manufacturing apparatus according to claim 1, and a plurality of binding protrusions are formed on one surface thereof, and as the binding protrusions are punched, a plurality of iron cores on which the binding grooves are formed are formed on the back surface of the binding protrusions. Pass core characterized in that the formed.