JPH118967A - Linear motor - Google Patents

Linear motor

Info

Publication number
JPH118967A
JPH118967A JP17300697A JP17300697A JPH118967A JP H118967 A JPH118967 A JP H118967A JP 17300697 A JP17300697 A JP 17300697A JP 17300697 A JP17300697 A JP 17300697A JP H118967 A JPH118967 A JP H118967A
Authority
JP
Japan
Prior art keywords
mover
frame
linear motor
stator
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17300697A
Other languages
Japanese (ja)
Inventor
Masaki Hisatsune
正希 久恒
Tadahiro Miyamoto
恭祐 宮本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yaskawa Electric Corp filed Critical Yaskawa Electric Corp
Priority to JP17300697A priority Critical patent/JPH118967A/en
Publication of JPH118967A publication Critical patent/JPH118967A/en
Pending legal-status Critical Current

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  • Linear Motors (AREA)

Abstract

PROBLEM TO BE SOLVED: To make a linear motor thin, while enhancing the response of a mover by providing a mover where permanent magnets are interposed on the opposite sides of a stator coil. SOLUTION: When a coil is excited on a stator 10 produced by arranging a plurality of coils at a specified pitch and bonding in stripe with an insulating resin, a linear guide 9 mounted on a mover 3 is moved in the linear direction along a guide rail laid on a machine frame 1 through the action between a permanent magnet 6 fixed to a frame 4 of the mover 3 and a permanent magnet 7 fixed to a frame 5. In this case, the flux from the coil acts on the permanent magnet 6 fixed to the frame 4 on one side of the mover 3 and also acts on the permanent magnet 7 fixed to the frame 5 on the other side of the mover 3, thus moving the mover 3 in the linear direction. Since the permanent magnets 6, 7 of the mover 3 are disposed on the opposite sides of the stator 10, a linear motor can be made thin and the mass of the mover 3 can be reduced, while enhancing the response.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【発明の属する技術分野】本発明は、編み機における編
み針の駆動装置等に用いられるリニアモータに関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor used for a driving device of a knitting needle in a knitting machine.

【0002】[0002]

【従来の技術】従来のリニアモータは、図4に示すよう
に構成されている。図において、20はコ字状に構成し
た支持枠で、この支持枠20の両脚の端面に案内レール
21が設けてある。22は移動体で、この移動体22の
下面を前記案内レール21に載置し、移動体22を案内
レール21に沿って移動できるように構成している。2
3は移動体22に取付けた断面をロ字状に構成した可動
子枠で、この可動子枠23の対向する内面にコイル2
4、24を固定している。前記コイル24は渦巻状に巻
装し、可動子枠23の移動方向に沿って複数個配置して
いる。25は帯状に構成し前記可動子枠23内に可動子
枠23の移動方向に沿って配置し端部を固定部(図示せ
ず)に固定した軌道プレートで、この軌道プレート25
の両面に前記コイル24に対向させて永久磁石26を取
付けている。前記永久磁石26は可動子枠23の移動方
向に複数個配置している。このように構成したリニアモ
ータのコイル24を励磁すると、軌道プレート25に取
付けた永久磁石26との電磁作用により、コイル24を
取付けた可動子枠23と一体に移動体22が案内レール
21に沿って移動する。
2. Description of the Related Art A conventional linear motor is configured as shown in FIG. In the figure, reference numeral 20 denotes a U-shaped support frame, and guide rails 21 are provided on the end surfaces of both legs of the support frame 20. Reference numeral 22 denotes a moving body. The lower surface of the moving body 22 is placed on the guide rail 21 so that the moving body 22 can be moved along the guide rail 21. 2
Reference numeral 3 denotes a mover frame which is attached to the moving body 22 and has a rectangular cross section.
4 and 24 are fixed. The coils 24 are spirally wound, and a plurality of the coils 24 are arranged along the moving direction of the mover frame 23. Reference numeral 25 denotes a track plate which is formed in a belt shape and is arranged in the mover frame 23 along the moving direction of the mover frame 23 and has an end fixed to a fixed portion (not shown).
A permanent magnet 26 is attached to both surfaces of the first member so as to face the coil 24. The plurality of permanent magnets 26 are arranged in the moving direction of the mover frame 23. When the coil 24 of the linear motor configured as described above is excited, the moving body 22 moves along the guide rail 21 integrally with the mover frame 23 to which the coil 24 is attached due to the electromagnetic action with the permanent magnet 26 attached to the track plate 25. Move.

【発明が解決しようとする課題】ところが、従来のリニ
アモータは、軌道プレート25の両面に永久磁石26を
取付け、この永久磁石26に対向させてコイル24を可
動子枠23の内面に取付けている。このため、リニアモ
ータの厚さが厚くなり、編み機の駆動装置のように、多
くのリニアモータを並べて配置するものには適用ができ
なかった。また、可動子全体の質量が重くなり、可動子
の応答性が低下していた。そこで、本発明は、リニアモ
ータの厚みを薄くし、かつ、可動子の応答性を向上させ
ることを目的とする。
However, in the conventional linear motor, permanent magnets 26 are mounted on both surfaces of the track plate 25, and the coil 24 is mounted on the inner surface of the mover frame 23 in opposition to the permanent magnets 26. . For this reason, the thickness of the linear motor is increased, and it cannot be applied to a device in which many linear motors are arranged side by side, such as a driving device of a knitting machine. In addition, the mass of the entire mover becomes heavy, and the responsiveness of the mover has been reduced. Therefore, an object of the present invention is to reduce the thickness of a linear motor and improve the responsiveness of a mover.

【0004】[0004]

【課題を解決するための手段】上記問題点を解決するた
めに、本発明は、機枠に、機枠の長手方向に案内レール
を敷設し、この案内レールと平行に、前記機枠に固定子
を取付け、前記案内レールに、前記固定子に空隙を介し
て対向させた可動子を載置したリニアモータにおいて、
前記固定子は、所定ピッチで平板状に複数個並べた渦巻
き状のコイルを絶縁樹脂でモールド成形して構成し、か
つ、機枠に固定し、前記可動子は、前記固定子の両側に
空隙を介して枠体を配置し、この枠体の固定子と対向す
る面に永久磁石を設けている。
In order to solve the above problems, the present invention lays a guide rail on a machine frame in the longitudinal direction of the machine frame, and fixes the guide rail in parallel with the guide rail to the machine frame. A linear motor having a movable element mounted thereon and mounted on the guide rail, the movable element facing the stator via an air gap,
The stator is formed by molding a plurality of spiral coils arranged in a flat plate at a predetermined pitch with an insulating resin, and is fixed to a machine frame, and the mover is provided with gaps on both sides of the stator. And a permanent magnet is provided on a surface of the frame facing the stator.

【0005】[0005]

【発明の実施の形態】以下、本発明を図に示す実施例に
基づいて説明する。図1は、本発明の実施例を示すリニ
アモータの平面図、図2は図1のA−A線に沿う断面
図、図3は図1のB−B線に沿う断面図である。図にお
いて、1は機枠で、この機枠1内に機枠1の長手方向に
沿って案内レール2を敷設している。3はリニアモータ
の可動子で、中間部に凹部4a、5aを有する枠体4、
5を設け、前記枠体4、5の凹部4a、5aに所定のピ
ッチで永久磁石6、7を複数個並べて取付けている。前
記枠体4、5の一方側部にスペーサ8を、他方側部にリ
ニアガイド9を介して枠体4、5を連結固定して可動子
3を構成している。前記可動子3のリニアガイド9を案
内レール2に係合させて、案内レール2に沿って可動子
3を移動出来るようにしている。10は固定子で、渦巻
状に巻装したコイル11を所定のピッチで複数個並べて
絶縁樹脂12で帯状に固めて構成し、両端を機枠1の支
持座13に固定している。14は編み針を駆動するロッ
ドである。つぎに、このように構成したリニアモータの
動作について説明をする。リニアモータのコイル11を
励磁すると、可動子3の枠体4に取付けた永久磁石6お
よび枠体5に取付けた永久磁石7との電磁作用により、
可動子3に設けたリニアガイド9が案内レール2に沿っ
て直線方向に移動する。この場合コイル11からの磁束
は、可動子3の一方側の枠体4の永久磁石6に作用する
とともに、他方側の枠体5の永久磁石7に作用して可動
子3を直線方向に移動する。したがって、固定子10の
両面に可動子3の永久磁石6、7を配置したので、リニ
アモータの厚味を薄くすることができ、可動子に永久磁
石を用いたので、可動子の質量が軽くなり可動子の応答
性を向上することができる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. FIG. 1 is a plan view of a linear motor showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. In the figure, reference numeral 1 denotes a machine frame, and a guide rail 2 is laid in the machine frame 1 along the longitudinal direction of the machine frame 1. Reference numeral 3 denotes a mover of a linear motor, a frame body 4 having concave portions 4a and 5a in an intermediate portion,
5, a plurality of permanent magnets 6, 7 are arranged and mounted at predetermined pitches in the recesses 4a, 5a of the frame bodies 4, 5. The spacers 8 are connected to one side of the frames 4 and 5 and the frames 4 and 5 are connected and fixed to the other side via a linear guide 9 to form the mover 3. The linear guide 9 of the mover 3 is engaged with the guide rail 2 so that the mover 3 can move along the guide rail 2. Numeral 10 denotes a stator, in which a plurality of spirally wound coils 11 are arranged at a predetermined pitch and fixed in a belt shape with an insulating resin 12, and both ends are fixed to a support seat 13 of the machine frame 1. A rod 14 drives the knitting needle. Next, the operation of the linear motor configured as described above will be described. When the coil 11 of the linear motor is excited, the electromagnetic action between the permanent magnet 6 attached to the frame 4 of the mover 3 and the permanent magnet 7 attached to the frame 5 causes
A linear guide 9 provided on the mover 3 moves linearly along the guide rail 2. In this case, the magnetic flux from the coil 11 acts on the permanent magnets 6 of the frame 4 on one side of the mover 3 and also acts on the permanent magnets 7 of the frame 5 on the other side to move the mover 3 in a linear direction. I do. Therefore, since the permanent magnets 6 and 7 of the mover 3 are arranged on both surfaces of the stator 10, the thickness of the linear motor can be reduced, and since the permanent magnet is used for the mover, the mass of the mover is reduced. The responsiveness of the mover can be improved.

【0006】[0006]

【発明の効果】以上述べたように、本発明によればつぎ
のような効果がある。 (1) コイルを挟んでコイルの両側に永久磁石を配置
した可動子を設けたので、駆動力を損なうことなくリニ
アモータの厚みを薄くすることができる。 (2) 可動子を、枠体のコイルに対向する面に永久磁
石を取付けて構成したので、質量を軽減でき可動子の応
答性を向上することができる。 (3) 可動子を可動子の一方側だけで支持するので、
可動子の幅方向の長さを短くすることができる。
As described above, the present invention has the following effects. (1) Since the mover having permanent magnets disposed on both sides of the coil with the coil interposed is provided, the thickness of the linear motor can be reduced without impairing the driving force. (2) Since the mover is configured by attaching a permanent magnet to the surface of the frame body facing the coil, the mass can be reduced and the responsiveness of the mover can be improved. (3) Since the mover is supported only on one side of the mover,
The length of the mover in the width direction can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を示すリニアモータの平面図で
ある。
FIG. 1 is a plan view of a linear motor showing an embodiment of the present invention.

【図2】図1のA−A線に沿う断面図である。FIG. 2 is a sectional view taken along line AA of FIG.

【図3】図1のB−B線に沿う断面図である。FIG. 3 is a sectional view taken along line BB of FIG. 1;

【図4】従来のリニアモータの側断面図である。FIG. 4 is a side sectional view of a conventional linear motor.

【符号の説明】[Explanation of symbols]

1 機枠、 2 案内レール、 3 可動子、 4 枠
体、 4a 凹部、5 枠体、 5a 凹部、 6 永
久磁石、 7 永久磁石、8 スペーサ、 9 リニア
ガイド、 10 固定子、 11 コイル、12 絶縁
樹脂、 13 支持座、 14 ロッド
1 machine frame, 2 guide rail, 3 mover, 4 frame, 4a recess, 5 frame, 5a recess, 6 permanent magnet, 7 permanent magnet, 8 spacer, 9 linear guide, 10 stator, 11 coil, 12 insulation Resin, 13 support seat, 14 rod

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 機枠(1)に、機枠(1)の長手方向に
案内レール(2)を敷設し、この案内レール(2)と平
行に、前記機枠(1)に固定子(10)を取付け、前記
案内レール(2)に、前記固定子(10)に空隙を介し
て対向させた可動子(3)を載置したリニアモータにお
いて、 前記固定子(10)は、所定ピッチで平板状に複数個並
べた渦巻き状のコイル(11)を絶縁樹脂(12)でモ
ールド成形して構成し、かつ機枠(1)に固定し、前記
可動子(3)は、前記固定子(10)の両側に空隙を介
して枠体(4)(5)を配置し、この枠体(4)(5)
の固定子(10)と対向する面に永久磁石(6)(7)
を設けたことを特徴とするリニアモータ。
1. A guide rail (2) is laid on a machine frame (1) in the longitudinal direction of the machine frame (1), and a stator (2) is fixed to the machine frame (1) in parallel with the guide rail (2). 10), a linear motor having a mover (3) mounted on the guide rail (2) and facing the stator (10) with a gap therebetween, wherein the stator (10) has a predetermined pitch. A plurality of spiral coils (11) arranged in a flat plate are molded by an insulating resin (12) and fixed to a machine frame (1), and the mover (3) is fixed to the stator Frames (4) and (5) are arranged on both sides of (10) via a gap, and the frames (4) and (5)
Permanent magnets (6) and (7) on the surface facing the stator (10)
A linear motor comprising:
【請求項2】 前記リニアモータの可動子(3)の案内
レール側に前記案内レール(2)に係合するリニアガイ
ド(9)を設けた請求項1記載のリニアモータ。 【0001】
2. The linear motor according to claim 1, wherein a linear guide (9) is provided on the guide rail side of the mover (3) of the linear motor to engage with the guide rail (2). [0001]
JP17300697A 1997-06-13 1997-06-13 Linear motor Pending JPH118967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17300697A JPH118967A (en) 1997-06-13 1997-06-13 Linear motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17300697A JPH118967A (en) 1997-06-13 1997-06-13 Linear motor

Publications (1)

Publication Number Publication Date
JPH118967A true JPH118967A (en) 1999-01-12

Family

ID=15952453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17300697A Pending JPH118967A (en) 1997-06-13 1997-06-13 Linear motor

Country Status (1)

Country Link
JP (1) JPH118967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020174518A (en) * 2019-04-12 2020-10-22 直得科技股▲ふん▼有限公司 Linear motor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020174518A (en) * 2019-04-12 2020-10-22 直得科技股▲ふん▼有限公司 Linear motor device
CN111817523A (en) * 2019-04-12 2020-10-23 直得科技股份有限公司 Linear motor structure

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