JP2007284075A

JP2007284075A - Bag body opening device

Info

Publication number: JP2007284075A
Application number: JP2006110896A
Authority: JP
Inventors: Takeo Sugiyama; 建夫杉山
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-13
Filing date: 2006-04-13
Publication date: 2007-11-01

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag body opening device capable executing flexible production of bagged products in the state of securing proper quality without use of power. <P>SOLUTION: This bag body opening device comprises: an oscillating frame 1 equipped with a semicircular cam 6 attached to a rotatable vertical shaft and a bag-body opening implement 7; a fixed frame 4 equipped with a bag-body opening implement 8; and a semicircular cam rotating implement 10 which turns the semicircular cam 6, abutting on the oscillating cam 1 during rotation, by an angle of almost 180°. When the oscillating frame 1 is rotated in such a manner as to get closer to the fixed frame 4, the rotation of the semicircular cam 6 makes a bag body-attached surface of the bag-body opening implement 7 rotated in such a manner as to face a bag body-attached surface of the bag-body opening implement 8. When the oscillating frame 1 is rotated in such a manner as to be separated from the fixed frame 4, the rotation of the semicircular cam 6 makes the bag body-attached surface of the bag-body opening implement 7 rotated in such a manner as to be directed to the side of not facing the bag body-attached surface of the bag-body opening implement 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は袋体開口装置に関する。 The present invention relates to a bag body opening device.

近年、多品種少量の袋詰め製品を製造することを要求されることがある。袋詰め製品の製造には、従来から包装装置が使用されており、包装装置には袋体開口装置が必要である。而して、従来の包装装置は少品種多量の袋詰め製品を製造するためのものが多いため、袋体開口装置で開口する袋体は種類も少なくて良い。しかるに、多品種少量生産の場合は、袋体の種類が種々であるため、従来の包装装置を使用する場合でも袋体に対応して、袋体開口装置の部品を交換したりする必要が生じ、従って、従来の包装装置をそのまま多品種少量の袋詰め製品の製造に適用することには無駄が多い。 In recent years, it is sometimes required to manufacture a wide variety and small amount of bag-packed products. Conventionally, a packaging device is used for manufacturing a bag-packed product, and the packaging device needs a bag body opening device. Thus, since many conventional packaging devices are used for manufacturing small-sized and large-sized bag-packed products, the number of types of bags that can be opened by the bag-opening device may be small. However, in the case of high-mix low-volume production, since there are various types of bags, it is necessary to replace the parts of the bag opening device corresponding to the bag even when using the conventional packaging device. Therefore, it is wasteful to apply the conventional packaging apparatus as it is to the manufacture of a wide variety and a small amount of bag-packed products.

このため、多品種少量の袋詰め製品を製造する包装装置において、この要請に適した袋体開口装置を提供することが検討されているが、多品種少量の袋詰め製品を製造する場合にも、袋体開口装置では、袋体の供給、開口等の一連の作業は、駆動装置を用い、動力を使用して機械部品を駆動することにより行なわれることが考えられる。 For this reason, it has been considered to provide a bag opening device suitable for this requirement in a packaging device for manufacturing a wide variety and a small amount of bagging products. In the bag opening device, it is considered that a series of operations such as supplying and opening the bag is performed by using a driving device and driving mechanical parts using power.

なお、多品種少量の袋詰め製品に適用できそうな袋体開口装置を用いた包装装置としては、特許文献１がある。特許文献１でも、袋体開口部での袋体の開口は動力を利用して駆動している。
特開平９−２４２１号公報 In addition, there exists patent document 1 as a packaging apparatus using the bag body opening apparatus which seems to be applicable to a large variety and small amount of bagging products. Also in patent document 1, the opening of the bag body in the bag body opening part is driven using power.
Japanese Patent Laid-Open No. 9-2421

しかし、従来は多品種少量の袋詰め製品に適した袋体開口装置はないうえ、装置の駆動は動力により行なっているため、省エネルギ上不利であり、又、動力により駆動される機械部品（例えば、ラックアンドピニオン）が摩擦により磨耗したような場合、磨耗粉は、充填物と共に開口部から袋内に侵入する虞があり、袋詰め製品の品質の悪化を招来する。 However, there is no conventional bag opening device suitable for a wide variety of small-sized bag-packed products, and since the device is driven by power, it is disadvantageous in terms of energy saving, and mechanical parts driven by power ( For example, when the rack and pinion) is worn due to friction, the wear powder may enter the bag together with the filler from the opening, leading to deterioration of the quality of the bag-packed product.

本発明は、上記実情に鑑み、動力を使用することなく且つ良好な品質を確保した状態で多品種少量の袋詰め製品を効率良く製造し得るようにした袋体開口装置を提供することを目的としてなしたものである。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a bag body opening device capable of efficiently producing a wide variety and a small amount of bagging products without using power and ensuring good quality. It was made as.

本発明の袋体開口装置は、枢支された軸体に取付けられたカム及び該軸体に取付けられた第一の袋体開口治具を備えた揺動枠と、付着面が前記揺動枠側に向いた第二の袋体開口治具を備えた固定枠と、前記揺動枠が回動する際に当接する前記カムを略１８０度回転させるカム回転治具とを備え、前記揺動枠が固定枠に近接するよう回動する際には、前記カム回転治具に当接するカムの回転により軸体を介して第一の袋体開口治具の袋体付着面が第二の袋体開口治具の袋体付着面に対向するよう、第一の袋体開口治具を回転させ、前記揺動枠が固定枠から離反するよう回動する際には、前記カム回転治具に当接するカムの回転により軸体を介し第一の袋体開口治具の袋体付着面が第二の袋体開口治具の付着面に対向しない側に向くよう、第一の袋体開口治具を回転させるように構成したものである。 The bag body opening device of the present invention includes a swing frame provided with a cam attached to a pivotally supported shaft body, a first bag body opening jig attached to the shaft body, and an attachment surface of the swing body. A fixed frame provided with a second bag body opening jig facing the frame side, and a cam rotating jig for rotating the cam abutting when the swinging frame rotates by approximately 180 degrees. When the moving frame is rotated so as to be close to the fixed frame, the bag adhering surface of the first bag opening jig is moved to the second through the shaft by the rotation of the cam contacting the cam rotating jig. When the first bag body opening jig is rotated so as to face the bag body attachment surface of the bag body opening jig and the swing frame is rotated away from the fixed frame, the cam rotation jig The first bag body opening jig is attached to the first bag body opening jig so that the bag body attachment surface faces the side not facing the attachment surface of the second bag body opening jig through the shaft body by rotation of the cam contacting the first body. The body opening jig is obtained by configured to rotate.

又、本発明の袋体開口装置は、袋体が付着された第一の袋体開口治具が第二の袋体開口治具に所定位置まで近接するよう揺動枠が固定枠に向けて回動した際には、第一、第二の袋体開口治具に袋体が付着され、袋体が第一、第二の袋体開口治具に付着された状態で揺動枠が固定枠から離反するよう回動した際には、袋体が開口するよう構成されているものである。 In the bag opening device of the present invention, the swing frame is directed toward the fixed frame so that the first bag opening jig to which the bag is attached approaches the second bag opening jig to a predetermined position. When rotated, the bag is attached to the first and second bag opening jigs, and the swing frame is fixed with the bag attached to the first and second bag opening jigs. The bag is configured to open when it is turned away from the frame.

本発明の請求項１、２に記載の袋体開口装置によれば、袋体の材質、サイズ等の種類がある程度替っても、同一の装置で対応することが可能であるため、多品種少量生産の場合もコストをかけることなく容易に袋詰め作業を行なうことが可能となり、又、操作は作業員が手動で行なうことができるため、動力が不要で省エネルギに貢献でき、更に、機械部品の磨耗は殆どないため、袋体内に金属粉末等の異物が侵入することがなく、良好な品質を確保することができる等、種々の優れた効果を奏し得る。 According to the bag body opening device described in claims 1 and 2 of the present invention, it is possible to cope with the same device even if the type of material, size, etc. of the bag body is changed to some extent. Even in the case of small-volume production, it is possible to easily carry out bagging work without incurring costs, and since the operation can be performed manually by an operator, no power is required and energy can be saved. Since there is almost no wear of parts, foreign substances such as metal powder do not enter the bag body, and it is possible to achieve various excellent effects such as ensuring good quality.

以下、本発明の実施の形態を添付図面を参照して説明する。
図１〜図７は本発明の実施の形態の一例である。図中、１は軸受２に回転可能に支持されている水平軸３に固設された、正面形状が逆Ｌ形状の揺動枠である。揺動枠１は垂線Ｌを基準として前方Ｆ及び後方Ｒへ揺動し得るようになっている。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 7 show an example of an embodiment of the present invention. In the figure, reference numeral 1 denotes a swing frame fixed to a horizontal shaft 3 rotatably supported by a bearing 2 and having a reverse L-shaped front shape. The swing frame 1 can swing forward F and backward R with respect to the perpendicular L.

４は揺動枠１が垂直状態から傾斜して前方Ｆへ来た際に当該揺動枠１が対向して位置するようにした、正面形状が逆Ｌ形状の固定枠である。固定枠４は垂直状態よりも、揺動枠１から離反する前方Ｆ側へ傾斜している。 Reference numeral 4 denotes a fixed frame having an inverted L-shaped front face that is configured to face the swinging frame 1 when the swinging frame 1 is inclined from the vertical state and comes to the front F. The fixed frame 4 is inclined to the front F side away from the swing frame 1 rather than the vertical state.

揺動枠１の水平部材１ａの先端部には、水平部材１ａを上下に貫通するように回転可能な縦軸５が設けられており、縦軸５の上端には、半円カム６が取付けられている。又、縦軸５の下端には、ウレタンエラストマ等の粘着プラスチック製の袋体開口治具７が取付けられている。而して、揺動枠１が固定枠４から離反して後方Ｒ側へ所定角度の傾斜状態にある場合は、半円カム６の円弧状先端部は、水平部材１ａの固定枠４側の面よりも固定枠４側に突出しており、袋体開口治具７は、水平部材１ａの固定枠４から離反した面よりも固定枠４から離反する側へ突出している（図１、図３参照）。 A vertical axis 5 is provided at the front end of the horizontal member 1 a of the swing frame 1 so as to be able to pass through the horizontal member 1 a up and down. A semicircular cam 6 is attached to the upper end of the vertical axis 5. It has been. A bag opening jig 7 made of adhesive plastic such as urethane elastomer is attached to the lower end of the vertical axis 5. Thus, when the swing frame 1 is separated from the fixed frame 4 and is inclined to the rear R side by a predetermined angle, the arcuate tip of the semicircular cam 6 is located on the fixed frame 4 side of the horizontal member 1a. The bag opening jig 7 protrudes toward the side away from the fixed frame 4 from the surface separated from the fixed frame 4 of the horizontal member 1a (FIGS. 1 and 3). reference).

固定枠４の水平部材４ａにおける先端部の揺動枠１側に向いた面には、ウレタンエラストマ等の粘着プラスチック製の袋体開口治具８が取付けられている。而して、袋体開口治具８の袋体付着面は揺動枠１側に向いている。 A bag opening jig 8 made of adhesive plastic such as urethane elastomer is attached to the surface of the horizontal member 4a of the fixed frame 4 facing the swing frame 1 side. Thus, the bag body attachment surface of the bag body opening jig 8 faces the swing frame 1 side.

揺動枠１の揺動範囲の中間部には、揺動枠１の水平部材１ａ及び固定枠４の水平部材４ａの先端部側に位置するよう、枠体９が設置されており、枠体９には、揺動枠１の水平部材１ａにおける先端部側の面、すなわち、固定枠４の水平部材４ａにおける先端部側の面に、揺動枠１が揺動する際の半円カム６の揺動軌跡に沿うよう、ウレタンエラストマ等の粘着プラスチック製の半円カム回転治具１０が取付けられている。 A frame body 9 is installed at an intermediate portion of the swing range of the swing frame 1 so as to be positioned on the distal end side of the horizontal member 1a of the swing frame 1 and the horizontal member 4a of the fixed frame 4. 9, the semicircular cam 6 when the swing frame 1 swings on the tip-side surface of the horizontal member 1 a of the swing frame 1, that is, the tip-side surface of the horizontal member 4 a of the fixed frame 4. A semi-circular cam rotating jig 10 made of adhesive plastic such as urethane elastomer is attached so as to follow the swing locus of

揺動枠１が最も固定枠４から離反した位置における揺動枠１の近傍には、揺動枠１の傾斜角度に合わせて袋体収納容器１１が設けられている。袋体収納容器１１内には複数枚の袋体１３を収納し得るようになっており、揺動枠１が揺動して袋体収納容器１１に最も近接した場合には、袋体開口治具７の袋体付着面には、最上層の袋体１３が付着し得るようになっている。なお、図中、１２は揺動枠１を揺動させるための把手である。又、袋体収納容器１１に収納された袋体は、揺動枠１の傾斜角度と略等しい角度に傾斜し且つ上端側に開口が位置するように配置されている。 In the vicinity of the swing frame 1 at the position where the swing frame 1 is farthest from the fixed frame 4, a bag storage container 11 is provided in accordance with the inclination angle of the swing frame 1. A plurality of bag bodies 13 can be stored in the bag body container 11. When the swing frame 1 swings and is closest to the bag body container 11, the bag body opening treatment is performed. The top layer bag 13 can be attached to the bag body attachment surface of the tool 7. In the drawing, 12 is a handle for swinging the swing frame 1. Further, the bag body stored in the bag body storage container 11 is disposed such that the bag body is inclined at an angle substantially equal to the inclination angle of the swing frame 1 and an opening is positioned on the upper end side.

次に、上記図示例の作動を説明する。
袋詰め作業に際しては、揺動枠１は、例えば半円カム回転治具１０と袋体収納容器１１との間の中間位置に停止している。そこで、作業員は、把手１２を持って揺動枠１を図１の反時計方向Ｄ１へ回動させる。而して、揺動枠１が最も袋体収納容器１１に近接すると、揺動枠１に設けられている袋体開口治具７には、袋体収納容器１１に収納されている最上層の袋体１３が、当該袋体１３の上端部近傍において付着する。 Next, the operation of the illustrated example will be described.
During the bagging operation, the swing frame 1 is stopped at an intermediate position between the semicircular cam rotating jig 10 and the bag storage container 11, for example. Therefore, the worker holds the handle 12 and rotates the swing frame 1 in the counterclockwise direction D1 of FIG. Thus, when the swing frame 1 is closest to the bag storage container 11, the bag opening jig 7 provided in the swing frame 1 is placed in the uppermost layer stored in the bag storage container 11. The bag body 13 adheres in the vicinity of the upper end portion of the bag body 13.

袋体１３が揺動枠１の袋体開口治具７に付着したら、作業員は把手１２を持って揺動枠１を図１の時計方向Ｄ２へ回動させる。而して、揺動枠１が回動して、揺動枠１に設けてある半円カム６が半円カム回転治具１０に到達すると、半円カム６の半円カム回転治具１０に対向した径方向端部が半円カム回転治具１０に当接する（図７の仮想線イ参照）。 When the bag body 13 adheres to the bag body opening jig 7 of the swing frame 1, the worker holds the handle 12 and rotates the swing frame 1 in the clockwise direction D2 in FIG. Thus, when the swing frame 1 rotates and the semicircular cam 6 provided on the swing frame 1 reaches the semicircular cam rotating jig 10, the semicircular cam rotating jig 10 of the semicircular cam 6. The diametrical end opposite to abuts against the semicircular cam rotating jig 10 (see phantom line A in FIG. 7).

このため、更に揺動枠１を図１の時計方向Ｄ２へ回動させると、半円カム６は半円カム回転治具１０と接触している結果、半円カム６は摩擦により半円カム回転治具１０から回転力を受け、縦軸５と共に回転する。従って、半円カム６は徐々に位置を代え（図７の仮想線ロ参照）、半円カム回転治具１０の固定枠４側端部において、元の位置から略１８０度回転する（図７の仮想線ハ参照）。又、袋体開口治具７は縦軸５に取付けられているため、半円カム６が１８０度回転すると、袋体開口治具７も１８０度回転して、その袋体付着面は固定枠４側に向き、固定枠４に取付けられている袋体開口治具８の袋体付着面に向いた状態になる。 For this reason, when the swing frame 1 is further rotated in the clockwise direction D2 in FIG. 1, the semicircular cam 6 is in contact with the semicircular cam rotating jig 10, and as a result, the semicircular cam 6 is frictionally caused by the semicircular cam. It receives rotational force from the rotating jig 10 and rotates together with the vertical axis 5. Accordingly, the semicircular cam 6 gradually changes its position (see the phantom line B in FIG. 7), and rotates approximately 180 degrees from the original position at the end of the semicircular cam rotating jig 10 on the fixed frame 4 side (see FIG. 7). (See virtual line c). Further, since the bag body opening jig 7 is attached to the vertical axis 5, when the semicircular cam 6 rotates 180 degrees, the bag body opening jig 7 also rotates 180 degrees, and the bag body attachment surface is fixed to the fixed frame. It will be in the state which turned to the 4 side and turned to the bag body adhesion surface of the bag body opening jig 8 attached to the fixed frame 4.

半円カム回転治具１０が図７の仮想線ハに示すように当初の位置から１８０度回転した後、更に揺動枠１を図１の時計方向へ回動させると、袋体１３は、袋体開口治具７に付着している面とは反対側の面において袋体開口治具８に付着する（図１、図３の揺動枠１の仮想線ニ参照）。 After the semicircular cam rotating jig 10 is rotated 180 degrees from the initial position as shown by the phantom line C in FIG. 7, when the swinging frame 1 is further rotated in the clockwise direction in FIG. It adheres to the bag body opening jig 8 on the surface opposite to the surface attached to the bag body opening jig 7 (see the phantom line D of the swing frame 1 in FIGS. 1 and 3).

袋体１３の両面が袋体開口治具７，８の袋体付着面に付着したら、作業員は把手１２を介して揺動枠１を図１の反時計方向Ｄ１へ回動させる。この場合、袋体１３は袋体開口治具７，８の両方に付着しており、袋体開口治具７は反時計方向Ｄ１へ移動するが、袋体開口治具８は固定されているため、袋体１３の袋体開口治具７側は引っ張られ、その結果、袋体１３は開口する（図１の揺動枠１の仮想線ホ参照）。 When both surfaces of the bag body 13 adhere to the bag body attachment surfaces of the bag body opening jigs 7 and 8, the operator rotates the swing frame 1 in the counterclockwise direction D1 of FIG. In this case, the bag body 13 is attached to both the bag body opening jigs 7 and 8, and the bag body opening jig 7 moves in the counterclockwise direction D1, but the bag body opening jig 8 is fixed. Therefore, the bag body opening jig 7 side of the bag body 13 is pulled, and as a result, the bag body 13 is opened (see the phantom line E of the swing frame 1 in FIG. 1).

袋体１３が所定の状態に開口したら作業員は、揺動枠１を停止させ、袋体１３内に内容物を充填する。袋体１３に内容物が充填されたら、作業員は内容物の充填された袋体１３を手で引っ張って袋体１３の袋体開口治具７，８から剥し、揺動枠１を図１の反時計方向Ｄ１へ回動させて次の袋体１３を袋体開口治具７に付着させ、次の袋詰め作業を行なう。揺動枠１が反時計方向Ｄ１へ回動する際には、半円カム６は半円カム回転治具１０に当接しながら揺動枠１と共に移動するため、揺動枠１が時計方向Ｄ１へ回動する場合とは反対方向へ１８０度回転する。このため、半円カム６及び袋体開口治具７は元の位置に戻る。 When the bag 13 is opened in a predetermined state, the worker stops the swing frame 1 and fills the bag 13 with the contents. When the bag 13 is filled with the contents, the operator pulls the bag 13 filled with the contents by hand to peel it off from the bag opening jigs 7 and 8 of the bag 13, and the swing frame 1 is shown in FIG. Is rotated in the counterclockwise direction D1 to attach the next bag body 13 to the bag body opening jig 7, and the next bagging operation is performed. When the swing frame 1 is rotated in the counterclockwise direction D1, the semicircular cam 6 moves together with the swing frame 1 while being in contact with the semicircular cam rotating jig 10, so that the swing frame 1 is clockwise D1. It rotates 180 degrees in the opposite direction to the case where it rotates. For this reason, the semicircular cam 6 and the bag body opening jig 7 return to their original positions.

本図示例によれば、袋体の種類が替っても、同一の装置で袋体を開口することが可能であるため、多品種少量生産の場合もコストをかけることなく容易に袋詰め作業を行なうことが可能となり、又、操作は作業員が手動で行なうことができるため、動力が不要で省エネルギに貢献できる。更に、機械部品の磨耗は殆どないため、袋体内に金属粉末等の異物が侵入することがなく、良好な品質を確保することができる。 According to this illustrated example, even if the type of bag body is changed, it is possible to open the bag body with the same device. In addition, since the operation can be performed manually by an operator, no power is required and energy can be saved. Furthermore, since there is almost no wear of machine parts, foreign materials, such as a metal powder, do not penetrate | invade in a bag body, and favorable quality can be ensured.

なお、本発明の袋体開口装置は、上記した実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。 In addition, the bag body opening device of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

本発明の袋体開口装置の側面図である。It is a side view of the bag body opening device of the present invention. 図１のＩＩ−ＩＩ方向矢視図である。It is an II-II direction arrow line view of FIG. 図２のＩＩＩ−ＩＩＩ方向矢視図である。It is a III-III direction arrow directional view of FIG. 図１のＩＶ−ＩＶ方向矢視図である。It is an IV-IV direction arrow line view of FIG. 図４のＶ−Ｖ方向矢視図である。It is a VV direction arrow line view of FIG. 図５のＶＩ−ＶＩ方向矢視図である。It is a VI-VI direction arrow directional view of FIG. 本発明の袋体開口装置において、揺動枠に設けた半円カムが回転して向きを変えて行く状態を説明するための拡大平面図である。FIG. 6 is an enlarged plan view for explaining a state in which the semicircular cam provided on the swing frame rotates and changes its direction in the bag body opening device of the present invention.

符号の説明Explanation of symbols

１揺動枠
４固定枠
５縦軸（軸体）
６半円カム（カム）
７袋体開口治具（第一の袋体開口治具）
８袋体開口治具（第二の袋体開口治具）
９枠体
１０半円カム回転治具（カム回転治具）
１３袋体 1 Swing frame 4 Fixed frame 5 Vertical axis (shaft)
6 Semi-circle cam (cam)
7 Bag body opening jig (first bag body opening jig)
8 Bag body opening jig (second bag body opening jig)
9 Frame 10 Semi-circular cam rotation jig (cam rotation jig)
13 bags

Claims

枢支された軸体に取付けられたカム及び該軸体に取付けられた第一の袋体開口治具を備えた揺動枠と、袋体付着面が前記揺動枠側に向いた第二の袋体開口治具を備えた固定枠と、前記揺動枠が回動する際に当接する前記カムを略１８０度回転させるカム回転治具とを備え、前記揺動枠が固定枠に近接するよう回動する際には、前記カム回転治具に当接するカムの回転により軸体を介して第一の袋体開口治具の袋体付着面が第二の袋体開口治具の袋体付着面に対向するよう、第一の袋体開口治具を回転させ、前記揺動枠が固定枠から離反するよう回動する際には、前記カム回転治具に当接するカムの回転により軸体を介し第一の袋体開口治具の袋体付着面が第二の袋体開口治具の袋体付着面に対向しない側に向くよう、第一の袋体開口治具を回転させるように構成したことを特徴とする袋体開口装置。 A swing frame having a cam attached to a pivotally supported shaft body and a first bag body opening jig attached to the shaft body, and a second body whose bag body attachment surface faces the swing frame side A fixed frame provided with a bag opening jig and a cam rotating jig for rotating the cam that contacts when the swinging frame rotates by approximately 180 degrees, wherein the swinging frame is close to the fixed frame. When rotating so as to rotate, the bag adhering surface of the first bag opening jig is turned through the shaft by the rotation of the cam abutting on the cam rotating jig. When the first bag body opening jig is rotated so as to face the body attaching surface and the swinging frame is rotated away from the fixed frame, the cam contacting the cam rotating jig is rotated. Turn the first bag opening jig so that the bag attachment surface of the first bag opening jig faces the side not facing the bag attachment surface of the second bag opening jig through the shaft. Bag opening apparatus characterized by being configured so as to.

袋体が付着された第一の袋体開口治具が第二の袋体開口治具に所定位置まで近接するよう揺動枠が固定枠に向けて回動した際には、第一、第二の袋体開口治具に袋体が付着され、袋体が第一、第二の袋体開口治具に付着された状態で揺動枠が固定枠から離反するよう回動した際には、袋体が開口するよう構成されている請求項１に記載の袋体開口装置。 When the swinging frame is rotated toward the fixed frame so that the first bag opening jig to which the bag is attached is close to the second bag opening jig to a predetermined position, the first, first, When the bag body is attached to the second bag body opening jig and the swinging frame is turned away from the fixed frame while the bag body is attached to the first and second bag body opening jigs, The bag body opening device according to claim 1, wherein the bag body is configured to open.