JPH0440841Y2 - - Google Patents

Description

【考案の詳細な説明】 ＜産業上の利用分野＞ 本考案は金属、樹脂、木材等の表面を研削研磨
するものであつて、複数個のロールに研磨ベルト
を掛け渡し、かつ送材通路に対向する研磨ベルト
の内面に踏圧パツドを配設してなるベルトサンダ
ー機における踏圧パツドのパツド材を被覆する耐
摩可撓性被覆材の交換装置に関する。[Detailed description of the invention] <Industrial application field> The invention is for grinding and polishing the surfaces of metals, resins, wood, etc., and is a method of grinding and polishing the surfaces of metals, resins, wood, etc. The present invention relates to a device for replacing a wear-resistant flexible coating material that covers the pad material of a tread pad in a belt sander machine in which tread pads are arranged on the inner surfaces of opposing abrasive belts.

＜従来の技術＞ 従来のベルトサンダー機における踏圧パツドの
パツド材を被覆する耐摩性織布等からなる耐摩可
撓性被覆材の取付けは、第８図に示す様に耐摩可
撓性被覆材イの両端をパツド枠ロの前後外面に当
て、その上に挟着板ハを当てて複数のボルトニに
よりパツド枠ロに緊締して固着する如くしてパツ
ド材ホを被覆しているものである。<Prior art> The installation of a wear-resistant flexible covering material made of a wear-resistant woven fabric or the like to cover the pad material of the tread pad in a conventional belt sander machine involves the installation of a wear-resistant flexible covering material material as shown in Fig. 8. Both ends of the pad material E are placed against the front and rear outer surfaces of the pad frame L, and a clamping plate C is placed on top of the clamping plate C, which is tightened and fixed to the pad frame L by a plurality of bolts, thereby covering the pad material E.

しかるに前記の被覆材イは研磨ベルトヘの内面
に直接接触して短期間に摩耗するため定期的に取
替える必要があるが、取付時には全体を一様に緊
張させる必要から前記のボルトニを多数使用する
必要があつて、取替を非常に面倒なものとし、作
業能率の低下を招いている。又、被覆材イの摩耗
部分は研磨ベルトが接触する部分のみで他の部分
は摩耗していない、しかしながら被覆材は取替な
ければならない無駄で不経済等の欠点を持つもの
であつた。 However, the above-mentioned covering material (A) comes into direct contact with the inner surface of the abrasive belt and wears out in a short period of time, so it needs to be replaced periodically.However, when installing it, it is necessary to use a large number of the above-mentioned bolts because it is necessary to tension the entire part uniformly. This makes replacement extremely troublesome and reduces work efficiency. Further, the worn part of the covering material A is only the part that contacts the abrasive belt, and the other parts are not worn. However, the covering material has disadvantages such as being wasteful and uneconomical because it must be replaced.

＜考案が解決しようとする問題点＞ 本考案は、前項に述べた欠点を解決することを
問題点とするものである。<Problems to be solved by the invention> The problem of the invention is to solve the drawbacks mentioned in the previous section.

＜問題点を解決するための手段＞ 本考案は、踏圧パツドの前部若しくは後部のい
ずれか一方に耐摩可撓性被覆材を巻付けた巻付け
軸を回り止め装置を係合して配置し、その他方に
前記被覆材をパツド材を覆わせて巻取る巻取り軸
を戻り止めを係合して配した事を特徴とするもの
である。<Means for Solving the Problems> The present invention disposes a winding shaft on which a wear-resistant flexible coating is wound around either the front or rear of the tread pad and engages with a rotation prevention device. A winding shaft for winding up the covering material covering the pad material is disposed on the other end of the winding shaft, and a detent is engaged with the winding shaft.

＜作用＞ 巻取り軸側に設けた軸回転操作ハンドルを回転
させる事により、耐摩可撓性被覆材は巻取り軸側
へ走行し、パツド材表面を覆つている摩耗部分は
新しい部分となるものである。<Function> By rotating the shaft rotation operation handle provided on the winding shaft side, the wear-resistant flexible covering material travels toward the winding shaft side, and the worn part covering the pad material surface becomes a new part. It is.

＜実施例＞ 本考案の実施例を添付図面について説明する。
第１図は本考案を備えたベルトサンダ−機の概要
左側面図を示し、１は本体フレームで、２はハン
ドル３の回転で昇降ねじ４によつて上下動する昇
降案内５，６を係合した昇降送材テーブルであつ
て、その前部に送材従動ロール７を、同後部に送
材モーター（図示しない）を介した送材駆動ロー
ル８をそれぞれ設け、それら両ロール７，８に無
端送材ベルト９を掛け渡す。１０は送材テーブル
２上に対応する如くフレーム１の上部に設けたサ
ンデイングフレームであつて、その上部には上下
動可能にしたテンシヨンロール１１を設け、下部
前後にはサンデイングモーター（図示しない）を
介した駆動ロール１２，１３を設け、それらロー
ル１１，１２，１３に無端研磨ベルト１４を掛渡
す。<Example> An example of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a schematic left side view of a belt sander equipped with the present invention, in which 1 is the main body frame, and 2 is the lifting guide 5, 6 that is moved up and down by the lifting screw 4 when the handle 3 is rotated. It is a vertically conveying material table with a combination of a material feeding driven roll 7 at the front and a material feeding drive roll 8 via a material feeding motor (not shown) at the rear thereof, and both rolls 7 and 8. The endless material feeding belt 9 is passed around. 10 is a sanding frame provided on the upper part of the frame 1 so as to correspond to the material feeding table 2. A tension roll 11 that can move up and down is provided on the upper part, and a sanding motor (not shown) is provided on the front and rear of the lower part. Driving rolls 12 and 13 are provided via rollers (not shown), and an endless abrasive belt 14 is wound around these rolls 11, 12 and 13.

１５は駆動ロール１２，１３間において研磨ベ
ルト１４の上面に臨ませた踏圧パツド装着部であ
つて、その装着部に横方向からパツド枠１６を差
し込んで固定する。 Reference numeral 15 denotes a tread pad mounting portion facing the upper surface of the abrasive belt 14 between the drive rolls 12 and 13, and a pad frame 16 is inserted and fixed into the mounting portion from the lateral direction.

パツド枠１６には第４図に示す様に下面開放の
装着溝１７を形成してその前後の対応内壁面下端
を係合顎１８としている。前記装着溝１７内には
圧力エアーを供給した断面四角形の空気袋１９を
装着し、その空気袋１９の下面には送材方向に並
列状に並べた複数個のピン２０を配設し、その下
面には板ばね２１を顎１８に係合する如く当て、
さらにその下方にスポンジ、ゴム、フエルト等の
パツド材２２を当てて設ける。２３は装着溝１７
の開放口から一部を突出するパツド材２２に当て
て被覆した帆布などの滑りのよい耐摩可撓性被覆
材であつて、前記パツド材２２とこの被覆材２３
とにより踏圧パツド２４を構成する。 As shown in FIG. 4, the pad frame 16 has a mounting groove 17 with an open bottom surface, and the lower ends of the corresponding inner wall surfaces at the front and rear thereof serve as engaging jaws 18. An air bag 19 with a rectangular cross section to which pressurized air is supplied is installed in the installation groove 17, and a plurality of pins 20 arranged in parallel in the material feeding direction are arranged on the lower surface of the air bag 19. A leaf spring 21 is applied to the lower surface so as to engage with the jaw 18,
Furthermore, a pad material 22 such as sponge, rubber, felt, etc. is placed below it. 23 is the mounting groove 17
A slippery, abrasion-resistant flexible covering material such as canvas that is applied to a pad material 22 that partially protrudes from an open opening of the pad material 22 and this covering material 23.
This constitutes the tread pressure pad 24.

そしてパツド枠１６の前後左右の４ケ所には被
覆材支持具２５，２６，２７，２８を備え、そし
て前部に備えた該支持具２５，２６に被覆材２３
を巻付けた巻付け軸２９を軸架し、３０，３１は
被覆材支持具２５，２６にスプリング等の弾器３
２を係合し螺合して、巻付け軸２９を押圧し該巻
付け軸の回転を止める押圧ねじで、３３は被覆材
支持具２５に螺合して巻付軸２９をさらに強押圧
する該巻付け軸のロツクねじからなる回り止め装
置である。このロツクねじ３３は被覆材支持具２
６にも設けることができる。 Covering material supports 25, 26, 27, and 28 are provided at four locations on the front, rear, left, and right sides of the pad frame 16, and the covering material 23 is attached to the supports 25, 26 provided at the front.
The winding shaft 29 on which the
2 is a press screw that is engaged and screwed together to press the winding shaft 29 and stop the rotation of the winding shaft, and 33 is a press screw that is screwed into the covering material support 25 and presses the winding shaft 29 even more strongly. This is a rotation prevention device consisting of a lock screw on the winding shaft. This lock screw 33 is attached to the covering material support 2.
6 can also be provided.

一方、後部に備えた被覆材支持具２７，２８に
は巻付け軸２９に巻付けた被覆材２３を巻取る巻
取り軸３４を軸架すると共に、巻取り軸３４の一
端を被覆材支持具２７側より突出させ、その軸突
出部３５に爪車３６と軸回転操作ハンドル３７を
固着して設ける。そして爪３８を備えた回転中心
軸３９を被覆材支持具２７に回転自由に嵌め、そ
の爪３８の先端を該爪車３６に噛み合せる如くし
て爪車３６の戻り止めとしている。この戻り止め
は被覆材支持具２８側にも設けることができる。 On the other hand, a winding shaft 34 for winding the covering material 23 wound around the winding shaft 29 is mounted on the covering material supports 27 and 28 provided at the rear, and one end of the winding shaft 34 is connected to the covering material supporting tool. 27 side, and a ratchet wheel 36 and a shaft rotation operating handle 37 are fixedly provided on the shaft protrusion 35. A rotation center shaft 39 provided with a pawl 38 is fitted into the covering material support 27 so as to freely rotate, and the tip of the pawl 38 is engaged with the ratchet wheel 36 to prevent the ratchet wheel 36 from returning. This detent can also be provided on the dressing support 28 side.

第７図は他実施例を示し、被覆材支持具２５
ａ，２６ａ，２７ａ，２８ａをサンデイングフレ
ーム１０に備えて、該被覆材支持具に被覆材２３
ａを巻付けた巻付け軸２９ａと巻取り軸３４ａを
それぞれ軸架して踏圧パツド２４ａとは別々にし
た場合で、他については前記実施例と同じである
から同一符号を付した。 FIG. 7 shows another embodiment, in which the covering material support 25
a, 26a, 27a, 28a on the sanding frame 10, and the coating material 23 is attached to the coating material support.
This is a case in which the winding shaft 29a and the winding shaft 34a, on which the winding shaft 29a and the winding shaft 34a are respectively mounted, are separated from the tread pressure pad 24a.

本考案の実施例において踏圧パツドの前部に巻
付け軸を、後部に巻取り軸をそれぞれ配置してい
るが、前記踏圧パツドの前部に巻取り軸を、後部
に巻付け軸をそれぞれ配置して耐摩可撓性被覆材
を巻取ることもできる。 In the embodiment of the present invention, the winding shaft is placed at the front of the tread pad, and the winding shaft is placed at the rear of the tread pad. The abrasion-resistant flexible coating can also be rolled up.

前記実施例の作動を説明する。 The operation of the above embodiment will be explained.

研磨ベルト１４の内周面に接触しパツド材を覆
つている部分４０，４１の被覆材２３，２３ａが
摩耗した場合は、ロツクねじ３３を回転させて緩
めロツクを開放する事により、巻付け軸２９，２
９ａの押圧は弾器３２のみの押圧となるので、ハ
ンドル３７を左回転（第２、７図を見て）させる
事により巻取り軸３４，３４ａも左回転し、第
２、７図に示した矢印方向へ被覆材２３，２３ａ
を強制的に走行させることができる。したがつて
その走行により摩耗部分４０，４１が研磨ベルト
１４の内周面より離脱通過するまで走行させれ
ば、研磨ベルト１４に内接する被覆材２３，２３
ａは新しい部分となるものである。そしてロツク
ねじ３３を締付回転させて巻付け軸２９，２９ａ
を強押圧する事により、該巻付け軸２９，２９ａ
はロツク状態になるものである。その後、ふたた
びハンドル３７を左回転させて被覆材２３，２３
ａを緊張させる。又、巻取り軸３４，３４ａには
たえず右回転方向への力が働いているが、爪車３
６の外周溝に爪３８を噛み合せて該巻取り軸３
４，３４ａの戻りを止めているものである。 If the covering materials 23, 23a of the parts 40, 41 that contact the inner circumferential surface of the abrasive belt 14 and cover the pad materials are worn out, loosen the lock screw 33 by rotating it to release the lock. 29,2
Since the pressing force 9a only applies to the ammunition 32, by rotating the handle 37 to the left (see Figures 2 and 7), the winding shafts 34 and 34a also rotate to the left, as shown in Figures 2 and 7. Covering materials 23, 23a in the direction of the arrow
can be forced to run. Therefore, if the abrasive belt 14 is allowed to run until the worn parts 40 and 41 separate from and pass through the inner peripheral surface of the abrasive belt 14, the coating materials 23 and 23 inscribed in the abrasive belt 14 will be removed.
a is a new part. Then, tighten and rotate the lock screw 33 to wrap around the winding shafts 29, 29a.
By strongly pressing the winding shafts 29, 29a,
is in a locked state. After that, rotate the handle 37 to the left again to remove the covering materials 23, 23.
make a nervous. Further, although a force is constantly acting on the winding shafts 34, 34a in the clockwise rotation direction, the ratchet wheel 3
6 by engaging the pawl 38 with the outer circumferential groove of the winding shaft 3.
4, 34a from returning.

＜考案の効果＞ 本考案は前記の説明によつて明らかにした様
に、踏圧パツドの前部若しくは後部のいずれか一
方に耐摩可撓性被覆材を巻付けた巻付け軸を回り
止め装置を係合して配置し、その他方に前記被覆
材をパツド材を覆わせて巻取る巻取り軸を戻り止
めを係合して設け、巻取り軸側に設けた軸回転操
作ハンドルを回転させる事により、前記被覆材は
巻取り軸側へ走行し、パツド材表面を覆つている
摩耗部分は新しい部分と換わる様にしたから、作
業は極めて簡単となり作業能率も著しく向上し、
耐摩可撓性被覆材を経済的に利用できる等の優れ
た効果がある。<Effects of the invention> As clarified from the above explanation, the present invention provides a device to prevent rotation of the winding shaft around which the wear-resistant flexible coating is wound around either the front or rear part of the tread pad. A winding shaft for winding the covering material over the pad material is engaged and disposed on the other side, and a detent is engaged with the winding shaft, and a shaft rotation operation handle provided on the winding shaft side is rotated. As a result, the covering material travels toward the winding shaft, and the worn parts covering the pad material surface are replaced with new parts, making the work extremely simple and the work efficiency significantly improved.
It has excellent effects such as being able to economically utilize wear-resistant flexible coating materials.

【図面の簡単な説明】[Brief explanation of the drawing]

添付図面は本考案の実施例を示し、第１図は本
考案を備えたベルトサンダー機の左側面図で、第
２図は踏圧パツド付近の一部省略した拡大側面
図、第３図は第２図Ａ−Ａ線断面図、第４図は第
３図Ｂ−Ｂ線断面図、第５図は第３図Ｃ−Ｃ線断
面図、第６図は第３図Ｄ−Ｄ線断面図、第７図は
他の実施例を示す踏圧パツド付近の一部省略した
拡大側面図、第８図は従来の踏圧パツドを示す一
部省略の縦断面側面図である。 ９……無端送材ベルト、１０……サンデイング
フレーム、１４……研磨ベルト、１６……パツド
枠、１９……空気袋、２２……パツド材、２３，
２３ａ……耐摩可撓性被覆材、２４，２４ａ……
踏圧パツド、２５，２５ａ，２６，２６ａ，２
７，２７ａ，２８，２８ａ……被覆材支持具、２
９，２９ａ……巻付け軸、３３……ロツクねじ、
３４，３４ａ……巻取り軸、３６……爪車、３７
……軸回転操作ハンドル、３８……爪である。 The attached drawings show an embodiment of the present invention, and FIG. 1 is a left side view of a belt sander equipped with the present invention, FIG. 2 is an enlarged side view with a part of the vicinity of the tread pad omitted, and FIG. Figure 2 is a cross-sectional view taken along the line A-A in Figure 4, Figure 4 is a cross-sectional view taken along the line B-B in Figure 3, Figure 5 is a cross-sectional view taken along the line C-C in Figure 3, and Figure 6 is a cross-sectional view taken along the line D-D in Figure 3. , FIG. 7 is an enlarged side view, partially omitted, of the vicinity of the tread pressure pad, showing another embodiment, and FIG. 8 is a vertical sectional side view, partially omitted, showing a conventional tread pressure pad. 9... Endless material feeding belt, 10... Sanding frame, 14... Polishing belt, 16... Padded frame, 19... Air bag, 22... Padded material, 23,
23a... Abrasion-resistant flexible covering material, 24, 24a...
Pressure pad, 25, 25a, 26, 26a, 2
7, 27a, 28, 28a... Covering material support, 2
9, 29a... Winding shaft, 33... Lock screw,
34, 34a... Winding shaft, 36... Ratchet wheel, 37
. . . Shaft rotation operation handle, 38 . . . claw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の駆動案内ロールに掛け渡された研磨ベル
トの内周面にパツド材を耐摩可撓性被覆材で覆つ
てなる踏圧パツドを配置し、その対応外周面が加
工材に接触して、該加工材を研削、研磨するベル
トサンダー機において、前記踏圧パツドの前部若
しくは後部のいずれか一方に、耐摩可撓性被覆材
を巻付けた巻付け軸を、回り止め装置を係合して
配置し、その他方に前記被覆材をパツド材を覆わ
せて巻取る巻取り軸を、戻り止めを係合して配置
した事を特徴とするベルトサンダー機における踏
圧パツド装置。 A tread pad made of a pad material covered with an abrasion-resistant flexible coating is placed on the inner peripheral surface of an abrasive belt that is stretched around a plurality of drive guide rolls, and its corresponding outer peripheral surface contacts the workpiece to remove the workpiece. In a belt sander machine for grinding and polishing materials, a winding shaft wrapped with an abrasion-resistant flexible coating material is disposed on either the front or rear of the tread pad and engaged with a detent device. A treading pad device for a belt sander machine, characterized in that a winding shaft for winding up the covering material so as to cover the pad material on the other hand is engaged with a detent.