JPH08273957A - Guide roller and winding core manufacturing device - Google Patents

Abstract

PURPOSE: To contribute to a proper wind-up of a magnetic strip and at the same time prevent both side edge parts of the magnetic strip from being damaged. CONSTITUTION: A collar part 22 is formed at the edge part of a roller drum part 21. A regulation part 23 which is nearly vertical to the outer-periphery surface of the roller drum part 21 is formed at the root part our of the inner side surfaces of the collar part 22. An inclination part 24 is formed so that it spreads from the regulation part 23 out of the inner side surfaces of the collar part 22 to the tip of the collar part 22. A recessed groove part 25 is formed at the roller drum part 21 so that it continues to the regulation part 23 of the collar part 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide roller and a winding core manufacturing apparatus used for manufacturing a one-turn cut type winding core.

[0002]

2. Description of the Related Art Conventionally, in a wound core manufacturing apparatus,
The one shown in JP-A-2-34903 is provided, and its outline is shown in FIG. In FIG. 6, a silicon steel strip (hereinafter referred to as a steel strip) 1 which is a magnetic strip is indicated by an arrow A by a feed roller 2 which is rotationally driven by a motor (not shown).
Sent in the direction. The winding shaft 3 winds the steel strip 1 in the arrow B direction, and the cutting blade 4 is provided between the feed roller 2 and the winding shaft 3 to cut the steel strip 1.

An endless winding belt 5 is wound around a winding shaft 3 so as to hold the winding outer peripheral surface of the steel strip 1, and
The steel belt 1 is wound around an upper guide roller 6 and a lower guide roller 7, and the winding belt 5 allows the steel strip 1 to be wound around the winding shaft 3.
It is wound so as to be wound around the outer circumference.

In general, as shown in FIG. 7, the steel strip 1 may have unequal plate thicknesses ta and tb at both end portions 1a and 1b for reasons of rolling manufacturing. There is a difference of about several percent. When the steel strip 1 is wound around the winding shaft 3 described above, the steel strip 1 is wound into a flat trapezoidal shape as shown in FIG. As a result, since the winding outer peripheral surface of the steel strip 1 is inclined, the steel strip 1 is misaligned in the width direction while being wound, and it is not possible to wind the steel strip evenly, which makes it difficult to wind the steel strip and the end face of the core Will be uneven.

To cope with this, as shown in FIGS. 9 and 10, the flange portions 6a, 6a on both sides of the upper guide roller 6 are provided.
Thus, both end portions 1a and 1b of the steel strip 1 are sandwiched from the outside so that the steel strip 1 is forcibly guided to the winding shaft 3 to prevent displacement in the width direction during winding.

[0006]

However, in the above conventional structure, as can be seen from FIGS. 9 and 10, the end portions 1a and 1b of the steel strip 1 are always in contact with the inner surface of the collar portion 6a of the upper guide roller 6. (The shaded portion Sa in the drawing is the contact point). In this case, the end portions 1a and 1b of the dozens of steel strips 1 come into contact with each other in the region from the root portion to the tip portion of the inner surface of the collar portion 6a. At this time, FIG.
As can be seen from the above, the end portions 1a, 1b of the steel strip 1 and the flange portion 6a of the upper roller 6 have different rotational directions and peripheral velocities, so that friction is generated and the end portions 1a, 1b of the steel strip 1 are damaged. There was a risk of

The present invention has been made in view of the above circumstances, and an object thereof is to forcibly guide the magnetic band in the winding axis direction to contribute to good winding of the magnetic band, and to (EN) It is possible to provide a guide roller and a wound core manufacturing apparatus capable of preventing damage to both end portions.

[0008]

[Means for Solving the Problems] The first means is used for manufacturing a one-turn cut type winding core by cutting a magnetic band at a predetermined length in a winding direction and winding the magnetic band sequentially on a winding shaft. In the guide roller provided, a roller body for pressing the magnetic band on the outer peripheral surface, and a flange portion formed at the end of the roller body portion, at the root of the inner surface of the flange portion, A regulation portion that is substantially perpendicular to the outer peripheral surface of the roller body portion is formed, and an inclined portion is formed so as to expand outward from the regulation portion of the inner side surface of the collar portion to the tip of the collar portion. However, it has a feature.

The second means is characterized in that, in the first means, a concave groove portion is formed on the outer peripheral surface of the end portion of the roller body portion so as to be continuous with the regulating portion of the collar portion. Invention of 2). The third means is characterized in that, in the first means, the mutual separation distance of the collar portions can be adjusted (the invention of claim 3). The fourth means is
It is an apparatus for manufacturing a wound core using any one of the first means to the third means.

[0010]

In the first means, the magnetic band sent to the winding shaft side is pressed by the outer peripheral surface of the roller body. In this case, both end portions of the magnetic band come into contact with or substantially come into contact with the restricting portion, which is the base portion of the inner side surfaces of the collar portions. Since this restriction portion is substantially perpendicular to the outer peripheral surface of the roller body,
The magnetic band is guided so as to be sandwiched, and the shift of the magnetic band in the width direction is restricted. As a result, even if there is a difference in the plate thickness at both ends of the magnetic band, the magnetic band can be wound well on the winding shaft.

Moreover, since the inclined portion is formed so as to widen outward from the regulating portion on the inner side surface of the collar portion to the tip of the collar portion, the guide roller is located near the winding shaft, Even when the both ends of the magnetic band wound around the winding shaft are located between the flanges, it is unlikely that the both ends of the magnetic band wound around the winding shaft make sliding contact with both the flanges. The both ends of the magnetic band on the winding shaft are not damaged.

In the second means, since the groove portion is formed on the outer peripheral surface of the end portion of the roller body portion so as to be continuous with the regulating portion of the flange portion, the end portion of the magnetic band and the outer periphery of the roller body portion are formed. This makes it possible to prevent contact with the surface, and even if burrs due to so-called band material cutting occur at the end of the magnetic band, the magnetic band will not contact the outer peripheral surface of the roller body in its entire width. Adhesion is improved, and the magnetic band can be sent well.

That is, if a burr is generated at the end of the magnetic band, the burr contacts the end of the outer peripheral surface of the roller body on the flange side, and the magnetic band slightly floats from the outer peripheral surface. However, there is a possibility that the feed guide by the guide roller cannot be smoothly performed. However, this is not the case with the second means.

In the third means, since the mutual separation distances of the collar portions can be adjusted, the regulation strength can be changed by adjusting the distance between the regulation portions, and the magnetic band can be adjusted. Can be favorably prevented from shifting in the width direction. Also, it becomes possible to deal with the change of the width of the magnetic band. According to the fourth means, even if there is a difference in the plate thickness at both end portions of the magnetic strip, the magnetic strip can be wound well, and both end portions of the iron core composed of the wound product of the magnetic strip can be wound. This will prevent damage to the parts.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. A silicon steel strip (hereinafter referred to as a steel strip) 11, which is a magnetic strip, is fed in the direction of arrow A by a feed roller 12 which is rotationally driven by a motor (not shown). The winding shaft 13 winds the steel strip 11 in the direction of arrow B, and the cutting blade 14 is provided between the feed roller 12 and the winding shaft 13 to cut the steel strip 11.

The endless winding belt 15 has the winding shaft 1
3 is wound so as to hold the outer peripheral surface of the steel strip 11 wound,
Further, the steel belt 11 is wound around the upper guide roller 16 and the lower guide roller 17 which are guide rollers according to the present invention.
It is wound so as to be wound around the outer circumference.

The upper guide roller 16 is constructed as shown in FIGS. The upper guide roller 16 is
The shaft 18 and the block 1 fitted near both ends of the shaft 18.
It is composed of 9 and 20. These blocks 19,
20 has the same structure and is fitted in a state of facing each other.
Now, since they have the same structure, one block 19 will be described as a representative, and a cylindrical roller body portion 21 and a flange portion 22 are formed. At the root of the inner surface of the collar 22, the roller body 2
The restriction portion 23 is formed so as to be substantially perpendicular to the outer peripheral surface of No. 1. The radial length L of the restriction portion 23 (see FIG. 1)
Is formed to have a length corresponding to one to several thicknesses of the steel strip 11.

An inclined portion 24 is formed so as to spread outward from the regulating portion 23 on the inner side surface of the collar portion 22 to the tip of the collar portion 22. In addition, the roller body 2
A groove portion 25 is formed on the outer peripheral surface of No. 1 so as to be continuous with the restriction portion 23 of the collar portion 22. Further, auxiliary roller body portions 26, 26 having the same diameter as the roller body portion 21 are formed in the intermediate portion of the outer peripheral surface of the shaft 18, and the winding belt 15 is fitted to the roller body portion 25. A belt fitting portion 27 is formed.

The blocks 19 and 20 are movable in the axial direction with respect to the shaft 18, and now the set screws 19a and 2 are set.
It is fixed so as not to move by 0a. Therefore,
The collar portions 22 are configured so that the distance between them can be adjusted. The width of the lower guide roller 17 and the distance between the flange portions 22 are set to be substantially the same.

Next, the operation of the above configuration will be described. The steel strip 11 is guided by the upper guide roller 16, is wound by the winding belt 15, and is wound around the winding shaft 13. At this time, both side end portions 11a and 11b of the steel strip 11 are vertically restricted by the flange portions 22 and 22 of the upper guide roller 16.
The steel strip 11 is guided so as to be sandwiched between the steel strips 3 and 23, thereby restricting the movement of the steel strip 11 in the width direction.

As a result, according to this embodiment, the steel strip 11 can be wound well on the winding shaft 13 even when the plate thicknesses of the both end portions 11a and 11b of the steel strip 11 are different. . Further, in the collar portion 22, the regulating portion 23
Since the tip end side of the is an inclined portion 24, the steel strip 11 is in a non-contact state except that the steel strip 11 is in contact with the regulating portion 23 with a thickness of one to several sheets. As a result, the reel 1
The contact between the steel strip 11 whose winding is completed in 3 and the flange portion 22 is extremely small, and both side end portions 11a and 11b of the steel strip 11 on the winding shaft 13 are not damaged.

Further, according to this embodiment, the roller body portion 21
Since the recessed groove portion 25 is formed on the outer peripheral surface of the steel strip 11 so as to be continuous with the regulating portion 23 of the collar portion 22, the end portion 11a of the steel strip 11
It becomes possible to prevent the contact between the outer peripheral surface of the roller body portion 11b and 11b, by this, the end portion 11 of the steel strip 11
Even if burrs C due to so-called strip material cutting occur on a and 11b (see FIG. 1), the steel strip 11 has good adhesion to the outer peripheral surface of the roller body portion 21 over its entire width, and the steel strip 11 can be made good. You will be able to send.

That is, in the case of the structure having no groove,
If the steel strip has burrs on its ends, the burrs come into contact with the outer peripheral surface of the roller body and the steel strip slightly floats up from the outer peripheral surface, which may prevent the guide guide from the guide roller to be smoothly performed. There is. However, this is not the case in this embodiment.

Further, according to the present embodiment, since the mutual separation distances of the collar portions 22 can be adjusted, by adjusting the distance between the regulating portions 23, the regulation strength with respect to the steel strip 11 can be adjusted. Can be changed, and the deviation of the steel strip 11 in the width direction can be prevented even better. Also, steel strip 1
It becomes possible to deal with the change of the width of 1.

FIG. 5 shows a second embodiment of the present invention. In this embodiment, upper and lower auxiliary guide rollers 28, 29 are provided between the cutting blade 14 and the upper guide roller 16.
Is different from the first embodiment in that The guide rollers 28 and 29 have the same structure. To describe the guide roller 28 as a representative, the guide roller 28 has a roller body portion 30 and collar portions 31 and 31 at both end portions thereof. The collar portion 31 includes a regulating portion 32 and an inclined portion 33.
Is formed, and the groove portion 34 is formed in the roller body portion 30. The auxiliary guide rollers 28 and 29 press the upper surface and the lower surface of the steel strip 11, respectively.

In this embodiment, since the steel strip 11 is guided by the three rollers of the upper guide roller 16 and the guide rollers 28 and 29, the stability of the steel strip 11 during the feeding movement is improved, Positional deviation of the strip 11 in the width direction can be prevented more effectively.

[0027]

As is apparent from the above description, the present invention can obtain the following effects. According to the guide roller of the first aspect, the magnetic band can be guided so as to be sandwiched by the restricting portions, and as a result, even when there is a difference in the plate thickness at both end portions of the magnetic band, the winding is performed. The magnetic band can be wound well on the shaft, and the guide roller is located near the winding shaft because the inclined portion is formed on the tip end side of the regulation portion so as to spread outward. , Even when both ends of the magnetic band wound around the winding shaft are located between the flanges, the two ends of the magnetic band rarely come into sliding contact with the flanges, and the magnetic property of the winding shaft is small. It is possible to effectively prevent the both ends of the band from being damaged.

According to the guide roller of the second aspect, since the groove portion is formed on the outer peripheral surface of the end portion of the roller body portion so as to be continuous with the regulating portion of the flange portion, the end portion of the magnetic band and the roller are formed. It is possible to prevent contact with the outer peripheral surface of the body, and with this,
Even if burrs due to so-called band material cutting occur at the ends of the magnetic band, the magnetic band has good adhesion to the outer peripheral surface of the roller body in its entire width, and the magnetic band can be fed well.

According to the guide roller of the third aspect, since the mutual separation distance of the collar portions can be adjusted, the regulation strength can be changed by adjusting the distance between the regulation portions. As a result, it is possible to favorably prevent the deviation of the magnetic band in the width direction, and it is also possible to deal with the change of the width of the magnetic band. According to the wound core manufacturing apparatus of claim 4, the magnetic band can be well wound even when there is a difference in plate thickness between both end portions of the magnetic band, and the wound magnetic core is formed. It is possible to prevent damage to both end portions of the iron core.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part of a guide roller showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a wound core manufacturing device.

FIG. 3 is a perspective view of a guide roller.

FIG. 4 is a vertical sectional side view of the guide roller.

FIG. 5 is a perspective view of a wound iron core manufacturing apparatus showing a second embodiment of the present invention.

FIG. 6 is a perspective view of a wound core manufacturing apparatus showing a conventional example.

FIG. 7 is a vertical sectional front view of a steel strip.

FIG. 8 is a transverse plan view of a winding shaft portion showing a winding state of a steel strip.

FIG. 9 is a side view of the winding core manufacturing apparatus.

FIG. 10 is a vertical sectional front view of an upper guide roller portion.

[Explanation of symbols]

11 is a silicon steel strip (magnetic strip), 12 is a feed roller, 13 is a winding shaft, 14 is a cutting blade, 15 is a winding belt, 16 is an upper guide roller (guide roller), 18 is a shaft, 19, 20
Is a block, 21 is a roller body portion, 22 is a flange portion, 23 is a regulating portion, 24 is an inclined portion, and 25 is a concave groove portion.

Claims (4)

[Claims] 1. A guide roller used for manufacturing a one-turn cut type winding core by cutting a magnetic band at a predetermined length in the winding direction and winding the magnetic band sequentially on a winding shaft, wherein A roller body for pressing the magnetic band, and a collar portion formed at an end of the roller body portion are provided, and a root portion of an inner side surface of the collar portion is provided with respect to an outer peripheral surface of the roller body portion. The guide roller is characterized in that a regulation portion that is substantially vertical is formed, and an inclined portion is formed so as to widen outward from the regulation portion on the inner side surface of the collar portion to the tip of the collar portion. 2. The guide roller according to claim 1, wherein a concave groove portion is formed on the outer peripheral surface of the roller body portion so as to be continuous with the regulating portion of the collar portion. 3. The guide roller according to claim 1, wherein the guide rollers are configured so that a mutual distance between the collar portions can be adjusted. 4. A wound iron core manufacturing apparatus using the guide roller according to any one of claims 1 to 3.