WO1998008740A1

WO1998008740A1 - Band winding mechanism in a packing machine

Info

Publication number: WO1998008740A1
Application number: PCT/JP1997/003044
Authority: WO
Inventors: Saichi Matsubara; Jack Edward White
Original assignee: Saichi Matsubara; Jack Edward White
Priority date: 1996-08-30
Filing date: 1997-09-01
Publication date: 1998-03-05
Also published as: JP2000203514A

Abstract

A band winding mechanism that can effect the operation of tightly winding a band around a pack under an appropriate balanced condition, and is highly durable and relatively light. Mechanisms for winding, cutting and welding a band are compactly assembled omitting a stripper mechanism from under a table on which the pack is placed. The mechanisms can be operated properly and smoothly. In a band winding mechanism in which a series of band passageways are formed in such a manner as to surround the pack and connected to each other via connecting members, the band passageway (28) in a plurality of band guiding pieces is constituted by a base body (20) and doors (22) opposed to the pack. The doors are mounted on both sides of the base body via a resilient restoring member (21).

Description

Band operation mechanism for packing in packing machine

Technical field

The present invention relates to a band hanging operation mechanism in a banding and packing machine, and its basic purpose is to easily and accurately perform an operation of hanging and tightening a band around a package under appropriate balance conditions. It seeks to provide a mechanism that can be achieved.

Another object of the present invention is to provide a highly durable and relatively lightweight band suspension operating mechanism.

Still another object of the present invention is to remove a single strip ridge under a table on which a package on which a band is to be suspended is to be placed, and to remove each band for suspending, cutting and welding the band. It is an object of the present invention to provide a mechanism that can be configured as a compact and that can perform such operations smoothly. ^ Art

The automatic packing machine that efficiently wraps the packing body is an automatic packing machine that functions as a mechanism that allows the band made of tough resin material to be accurately wound around the periphery of the packing body and smoothly tightened and connected. Has been widely used. That is, such an automatic packing machine generally encloses the above-mentioned band set in a set body formed around the packing material in a loop shape under the condition where the packing material is set. After the band is set, the band tip is gripped and fixed, and then when the band is tightened, the band is pulled out of the restrained state inside the set body by a device called a stripper, that is, the band is opened to the side of the set body. From the side The band is pulled out sideways by sliding the socket part sideways, and then the supply end side of the band is pulled back to form a tight state. And performing the operation of cutting off the supply end side in a crossed or parallel manner in each direction of the package, whereby a package suitable for cargo handling can be efficiently obtained.

However, there are some drawbacks in the banding operation in the actual packing machine even if the ones conventionally adopted or proposed have their respective advantages. That is, in the above-mentioned conventional general operation, the operation of sliding the entire set body formed around the packaged material sideways by a machine called a stripper requires a considerably complicated and robust mechanism, and It requires a correspondingly large working force. In addition, there is a disadvantage that a loud impact sound is emitted at that time and the working environment is deteriorated.

Furthermore, in the banding packing machine, the size of the hanging operation band is preferably a recent size slightly larger than the size of the item to be packed, preferably non-violet for efficiency, but the size change of the hanging band guide can be easily handled. In general, in addition to the standard type, there are several types of different dimensions, and the actual situation is to choose the closest dimension from the uneconomical one. In addition, specially shaped and specially large packages only change the band guide arch as a special type, but are expensive. On the user side, if the band size is changed and the band guide door is replaced due to a change in the manufactured product, the output becomes very expensive and the uneconomical situation increases.

In recent years, the guide guide is divided into pieces, as in the present invention. However, since there is basically a single stripper mechanism, the holding mechanism is complicated, and many springs and other attachments are used. There is a product, and it is difficult to expand and contract it to the extent that it can be newly manufactured. Disclosure of the invention

The present invention has been studied to solve the problems in the prior art as described above, and the suspension of the band as described above and the detachment of the band from the suspension from the suspension to the outer surface of the package are as follows. No special force is required, such as a stripper that moves the entire holder, and the door is naturally opened to the package by the action of band tightening. The door is roughly restored by a weak elastic plate and is fixed by being attracted by a magnet, and the impact sound when closing is very low.

According to the present invention, the hanging band guide is one in which a straight guide piece is lightly and manually passed through a single metal flat bar to be connected, and the curved (corner) portion has a corner type. After penetrating the piece, it can be easily bent by hand according to the angle of inclination of the piece to form an appropriate angle.

In addition, the connection of the above-mentioned guide pieces should be completed only by manually fitting the protrusions of the spring clamps of the mounting brackets attached to the metal frame to the locking grooves provided behind the guide pieces. Can be. Therefore, the only work required is to cut or add unnecessary dimensions to the straight part of the metal frame. BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 is an explanatory view schematically showing the overall structure and operational relationship of a band suspension operating device in a packing machine: Fig. 2 is a band passage forming piece formed around a packing body; Fig. 3 is a front view showing the arrangement of the bodies; Fig. 3 is a perspective view of one of the bridge members made of a wooden material for forming a curve as viewed from the entrance side of the band II; Fig. 5 is a perspective view showing the internal structure of the piece shown in Fig. 5 with its openable doors wide open; Fig. 5 shows the slope of the curve-forming piece similar to Fig. 3 made of synthetic resin. FIG. 6 is a perspective view of a synthetic resin-made piece for forming a straight portion; FIG. 7 is an example of a preferred configuration according to the present invention. FIG. 8 is an end view of the one shown in FIG. 7; FIG. 9 is a cross-sectional view of the one shown in FIG. 7 (8); FIG. 10 is a view in FIG. 7 (8, 9) FIG. 11 is a front view showing an example of a corner piece used in combination with the straight section forming piece; FIG. 11 is a plan view showing another example of a preferred configuration according to the present invention; FIG. , 11. Side view of what is shown in FIG. 11; FIG. 13 is an end view of what is shown in FIG. 11 (1 2); FIG. 14 is that shown in FIG. 11 (12, 13) FIG. 15 is a side view showing a fixed state by a mounting member for locking and attaching the bridge body; FIG. 16 is a band of the band shown in FIG.側面 Side view from the inlet side; FIG. 17 is a side view from the band outlet side of that shown in FIGS. 15 and 16; FIG. 18 is another general bridge according to the present invention. FIG. 4 is an explanatory diagram showing a stakeholder. BEST MODE FOR CARRYING OUT THE INVENTION

The specific embodiment of the present invention as described above will be described with reference to the accompanying drawings. FIG. 1 shows the overall relationship of the operation of the automatic strapping machine to which the present invention is applied. As shown in FIG. The thermoplastic resin band (strap) made of polypropylene or the like is stored in the loop chamber 6 by the pull-out roller 34 from the reel 5 to the length required for one packing, and is sent out through the pull-back bundle 1-chamber 7. The roller 19 makes a round around the inside of the guide 10 through the lower passage of the welding portion, passes through the upper passage of the welding portion, and reaches the limit switch 32.

At the same time that the band end comes into contact with the limit switch, the delivery roller 9 stops, the left gripper 114 at the welded portion rises, and the upper band is fixed between the band table and the slide table 31. This completes the preparation for banding work.

The package 40 is set on the work table in the guide 10, and the starting switch is In response to a work start command, the pull-back opening collar 9a rotates, and the band separates from the guide 10 and is tightly tightened around the package. When the tightening force reaches a predetermined force, the retraction roller 9a stops, the right gripper 15 at the welded portion rises, and the lower band is fixed. Usually, the gripper 15 is provided with a cutting blade. The center guide 17 between the upper and lower bands jumps out sideways, and the heater blades are inserted into the upper and lower bands 1 and 1 at the same time. Bands 1 and 1 were brought into contact with the blades in the evening and the pressing force was reduced at the same time as the band surface was slightly melted, the heater blade jumped out sideways, and then the pressing heads were raised and the two bands To end the melting. Next, the left gripper-14, the pressing head 16 and the right gripper-15 with the cutting blade are lowered, and the lower band coming from the reel is cut at the same time. At the same time, the slide table 31 also traverses, and the welded band becomes free and returns to the package surface. Further, the delivery roller 9 also starts to rotate, the band makes one round of the guide surface, reaches the limit switch 32, the left gripper 114 rises, and the work preparation for holding the band end is completed.

However, in the packing machine that operates as described above, the details of an example of the hanging operation mechanism according to the present invention include a guide 10 formed around the package as shown in FIGS. It is formed by the connection of the pieces 2 as shown in the figures or Figs. 5 and 6. The pieces 2 are formed as opposed inclined surfaces as shown in Figs. 3, 4 and 5. A piece 2 for a curved portion, which has a trapezoidal profile on the side, and a piece 2a for a straight portion, which has a rectangular shape on the side, and has a parallel end face as shown in FIG. 2 to form the guide portion 10 as shown in FIG. 2. In order to form the state shown in FIG. 2, the connecting member 3 shown in FIG. 24. Engagement groove of each piece 2 and 2a. It was done.

Regarding the connecting member 3 shown in FIG. 15, the inventor repeated many experimental studies on the handling operability and strength of various members, but the most preferable member 3 is an aluminum strip material. It is also a simple aluminum strip that has not been subjected to alumite processing and has a thickness of 1 to 3 mm, a width of 8 to 30 mm, especially a thickness of 1.5 to 2 mm and a width of 1.5 to 2 mm. It is appropriate that the diameter is about 10 to 20 mm, and the insertion hole 30 is finished so that the insertion member can be easily inserted or detached, and that there is no looseness. In other words, the inserted connecting member 3 is well adapted to the state of the piece body 2, and a substantially accurate set state of the group of the piece body 2 is substantially accurately formed by only a simple insertion operation, and the disengagement is performed. It has been confirmed that it can. Therefore, for operations such as converting or repairing any piece, it is necessary to prepare a spare piece, and it is necessary to release the piece appropriately, and to replenish or partially remove the piece. It can be implemented simply and appropriately by hand without using any technology or tools. In other words, it is possible to immediately respond to changes in the size and shape of the intended package as appropriate.

In addition, as described above, the connection of the link body 2 or 2a penetratingly connected by the connection member 3 is performed by attaching the spring clamp 47 (first 16 7) is pressed by one engagement groove 24 of the locking projection 23 on the back of the piece 2 or 2a to open one side of the spring and then elastically lock the other side. The part 46 is fitted into the other engagement groove 24 and attached to the frame hardware. At the center of the spring clamp 47 in FIG. 15 is provided a screwing shaft 44 in which adjusting means 43, 43 are screwed, and fixing means 45, 45 screwed to the end of the screwing shaft 44. Thus, it is fixed to the frame member 8. The adjusting means 43 slightly moves the position of the spring clamp 47 up and down to give a slight curve to the straight line portion, thereby facilitating the band currency. By giving a curved line, a little space is created between the pieces, but It is not a team.

That is, the mounting portion body 4 as shown in FIG. 15 uses a double clip-shaped elastic holding member 47, and adjusters 43, 43 of a mounting shaft 44 provided at the center thereof are provided to form a piece. The position of the attachment relation to the body 2 or 2a is adjusted and fixed to the frame member 8 serving as a fixing member by fixing means 45, 45. By pressing, the mounting relationship using the elastic engaging claws 48 to each piece 2 or 2a is released, and this clamping pressure is released to automatically form the mounting relationship, which is simple. At this point, the piece 2 or 2a is attached and detached, making it easy to replace or adjust the settings. In this respect as well, assuring the re-arrangement that can be adapted to the shape and dimensions of the package as described above.

In the present invention, a special configuration is adopted for each piece 2 or 2a in order to facilitate the band suspension operation and to properly tighten the suspension. That is, each piece body 2, 2 a protrudes from the back surface of the fixed portion 20 or 120 serving as the base with the locking projection 23 and the engagement grooves 24, 24 as described above. Opening doors 22, 22 or 122, 122 are provided on both sides of the front side facing the package. These opening and closing doors 22, 22 or 122, 122 are elastically restored to both outer surfaces of the fixed part 20 or 120. Attached by the member 21 or 121, the opening / closing door 22, 22 or 122, 122 is always biased so as to cover the front surface of the fixed portion 20 or 120.

In addition, in the present invention, as shown in FIG. 4, the two doors 22, 22 are attached by the elastic restoring member 21 as described above, and the magnet 25 and the magnet 25 are provided between the fixed part 20 and the two doors 22. The open / close doors 22, 22 restored by the elastic restoring member 21 are fixed by suction at least finally by the attraction force of the magnet 25 by facing the material to be sucked 26 such as the iron piece to be sucked. Made up of

As for the magnet 25 described above, the magnet 25 was placed in a storage box 27 made of 鈇 rolled material. By housing and setting, the magnet 25 such as a green compact is effectively reinforced, and particularly, the end of the housing box 27 is set to be slightly protruded from the surface of the magnet 25. As a result, even if the material to be adsorbed 26 of the opening / closing door 22 is impinged upon, the magnet 25 that has been compacted and sintered is not damaged, and cracks are not particularly caused. The reason for using a magnet and an elastic body is that the restoring force of the elastic material is kept low in order to minimize the sound generated when the opened door returns, and the damper gently attached to the bridge body has a sponge shape. The cushioning material is returned to the original position, and immediately after that, the cushioning material is further pressed by the force of the magnet to gently return to the original position. The restored vehicle holds the closed state quite strongly by the force of the magnet. Therefore, when the slight impact sound can be ignored, the elastic restoration material can be made stronger and the magnet can be omitted.

In addition, a band passage 28 is formed between the fixed portion 20 and the opening / closing door 22 at the center thereof so as to be recessed at the center thereof, and the band 1 is passed through as described above. As shown in Figs. 3 and 4 or Figs. 5 and 6, such a band passage 28 has an entrance 28a which is largely open in both the width and thickness directions, while an exit 28b is narrow. In particular, when the band する passing by adopting a curved surface with a slope is used at an extremely high speed, an accurate sending position is obtained, and when the band passed through is tightened: 作用The band 1 is provided with an opening / closing surface 9122, 22 and a guiding inclined surface extending in a direction centering on the intermediate joining line.

The piece body as described above is made of wood having appropriate hardness and strength as shown in Figs. 3 and 4, but in general, it is shown in Figs. 5 and 6. As shown in the figure, it can be mass-produced by preparing a synthetic resin such as polyacetal (POM), polyphenylene ether (PPE), or polybutylene terephthalate (PBT). it can. In other words, the former is relatively thick especially in the case of wood, and the piece 2 tends to be large, while the latter is compact, but the former made of wood has appropriate dimensions and shape. It has the advantage that it can be manufactured and does not require special mold parts or press-fitting equipment, and is suitable for trial production. On the other hand, as shown in Figs. 5 and 6, a synthetic resin molded product can be mass-produced as a product with the same dimensions and the same shape, and is suitable as an industrial product. It is natural that it will be put to practical use. These synthetic resin molded articles are generally lightweight and excellent in strength. FIGS. 7 to 14 show two preferable configurations according to the present invention. Fig. 4 shows the case where the door is changed to a metal plate.The width of the bridge body 102 itself is wider at the entrance side and narrower at the exit side, and the band passage is formed by both walls of the metal plate along the width. the height of the _c-off靡側, i.e. band-pass outlet side from the inlet side is wide summer the band passage formed by tilts gold ¾ plate is higher inlet side from the outlet side. At the bottom of the band passage, the top of the inner bridge is inclined, and the exit side is higher than the entrance side. Due to the above, the entrance of the band passage is smaller at the entrance side than at the exit side at the top and bottom, and the band passes through the inside of the linked piece without any abnormality. That is the first? 10 to 10, as a first configuration, locking grooves 125 are provided on both sides of the intermediate portion in the thickness direction of the piece body 102, and the base grooves of the metal plate opening / closing door 122 are provided in the locking grooves 125. The flexible locking member 122a formed at the bottom is tiltably locked, and both ends of the elastic restoring member 121 are attached and opened in the joint area of the opening / closing doors 122, 122 on both sides of the piece body 102. The inclined front ends of the doors 122, 122 are openably held, and a band passage 128 is formed between the inclined front ends 122b, 122b and the surface of the piece body 102. A pressing member 126 for holding the bent locking portions 122a, 122a, which are the base ends of the opening / closing doors 122, 122, in the locking grooves 125 is attached to the elastic restoring member 121. It is close to a rigid body having almost no elastic action as described above, and precisely engages and holds the bent locking portions 122a, 122a in the locking grooves 125.

FIG. 10 shows an example of such a piece 102 which is suitable for being used in a corner portion for making a series of communication, as shown in FIG. 2 in particular. By forming both of the end surfaces as the tapered surfaces 102a, required corners can be appropriately formed.

7 to 10 described above, the elastic restoration member 121 and the pressing member 126 are attached to the bridge 102 by the stator 124 such as a screw. Fig. 7 shows a case where a solid part 127 such as ultrasonic welding is adopted, and has no protrusion like the stator head of eight pieces in Figs. Is formed. By providing a cushioning material 129 such as urethane foam at the joining point of the elastic restoring member 121, generation of squeak when the opening / closing doors 122, 122 are opened and closed is prevented.

As a matter of course, an elastic metal plate / rubber plate or the like may be adopted as the elastic restoration member 21 described above.

The above-mentioned opening / closing door 22 according to the present invention is made of polyacetal (POM), polybutylene terephthalate (PBT), polydenylene ether (PPE), and other synthetic resins of the same quality as the piece body 2. Naturally, it may be made of a wood material or the like having excellent strength, thereby obtaining the characteristics of the present invention as described above. However, it is also possible to use a material such as stainless steel or an aluminum alloy. In any case, the advantages of the present invention can be sufficiently obtained.

According to the present invention as described above, a series of band passages are formed so as to surround a package, and a plurality of pieces are connected by a connecting member. The band passage is fixed and the above bundled A large operating force that reduces the width of the open / close door by half by forming it with the open / close door facing the wrapper, and also moves the entire series of pieces to the side. The operation of pulling out the band from the band passage can be easily and smoothly performed under balanced conditions under the operating conditions of the elastic material or the like without observing the noise generated by the band.

The opening and closing 屝 opposed to each other as described above is attached to both side surfaces of the fixed portion by an elastic restoring member, and a magnet is provided between the fixed portion and each of the opening and closing doors. The combination of the elastic restoration member and the magnet achieves the absorption effect and realizes a quiet working environment without noise.

The band passage in each piece body as described above is wide on the entrance side in the band passing direction and narrow on the exit side, and a tightening force acts on the band through which the inner surface of the opposed opening / closing door is passed. In this case, a guide slope is provided to guide the band in the direction centered on the intermediate joining line of the front and rear doors, so that the band passing under high-speed conditions equivalent to that of the band is appropriate. The band is positioned at the appropriate band setting position S for ease of guidance and insertion.

The opposing opening / closing door is attached to the fixed portion of the bridge body by an elastic synthetic resin plate, a rubber plate, an elastic metal plate, or an elastic restoring member that is a composite member thereof. This improves the durability of the band suspension operating mechanism in this type of packing machine that operates under considerably high-speed conditions. A permanent magnet is mounted in an iron frame buried on both sides of the band passage in the fixing portion of the piece body as described above so as to be slightly recessed from a side edge of the steel frame. The open / close I, which is oppositely connected via an elastic recovery member on both sides, is provided with a material to be adsorbed to the permanent magnet, so that the permanent magnet, which is a sintered metal body, is properly prevented from being damaged, and the durability is improved. And a mechanism that is excellent in magnetic action.

The above-mentioned piece body is formed of a polyacetal (POM), polybutylene terephthalate (PBT), polyphenylene ether (PPE) or other synthetic resin material, and the opening / closing door opposed to the fixed part is formed by the above-mentioned synthesis. A piece body that can be mass-produced by being molded as a wear-resistant body with resin K mixed with a fiber material to obtain a machine that has good durability and that is suitable for addition. Light weight and favorable strength are ensured. A flat connecting member is formed in the fixing portion of the plurality of pieces as described above. An insertion hole and a mounting member locking portion are formed, and the connecting member is formed by the band-shaped connecting member inserted into the insertion hole. The plurality of pieces are connected as a proper alignment body with a small error to a length suitable for the size of the package to be packed. It can be easily connected to a length suitable for

Locking grooves are provided on both sides of the intermediate portion in the thickness direction of the piece body, and the bent locking portion formed at the base end of the opening / closing door of the locking groove is tiltably locked. An elastic restoring member is attached to the joint area on both sides of the bridge to hold the front end of the door so that it can be opened and closed, and to hold the bent locking portion at the base end of the door in the locking groove. By providing the holding member, it is possible to accurately perform the above-described operation in a compact structure using a member having excellent strength and elasticity, such as a gold S plate member, without employing thick wood or the like. obtain. -Either one or both of the elastic restoration member and the holding member is attached to the fixed part of the bridge body with screws or other stators, so that an effective assembly state is accurately formed. It can be easily disassembled and parts can be replaced.

Ultrasonic welding of one or both of the elastic restoration member and the holding member By attaching it to the fixed part of the bridge body with other welded parts, it is possible to finish such that no projecting parts such as screw heads remain on the peripheral surface of the assembly part, and to facilitate the assembly and manufacture. Provide a preferred body without employing complicated work.

Due to the interposition of urethane rubber or other elastic material between the free end of the elastic restoring member and the fixed portion of the piece, squealing noise occurs when the band escapes from the piece. And the desired packing operation can be easily achieved in a favorable working environment.

Since the above-mentioned band-shaped connecting member is a band-shaped member made of aluminum or aluminum alloy which is not covered with alumite or a soft metal equivalent thereto, a series of pieces which are reconnected and connected substantially appropriately surround the package. It can be easily prepared as a connecting part suitable for each package by appropriately reassembling it. In addition, the use of such a light metal material such as aluminum, in combination with the above-described formation of the bridge member made of a synthetic resin, makes it possible to sufficiently reduce the weight of such a band suspension operation mechanism.

Attachment member in any of a series of pieces connected by the connecting member ~ lt¾H The attachment member is provided so as to be detachable from the frame that is configured to receive the package by the attached attachment member. Accordingly, the package housing portion can be formed easily and appropriately with a relatively small {3} mounting member, and this can be changed.

The connecting portion has a screw shaft provided with an elastic engaging claw opposite to a groove-shaped engaging portion provided opposite to the fixed portion of the bridge body, and is fixed to the frame by the screw shaft. By providing an adjusting portion for adjusting the mounting position S of the elastic engaging claws as described above, the mounting and dismounting operation can be easily performed using the elastic engaging claws, and the accurate mounting state can be quickly performed. Formed. Industrial applicability

According to the present invention as described above, the packing body band is appropriately guided in the series of pieces 2 or 2a, and the opening / closing device provided in such a series of pieces is opened and closed. It is opened symmetrically by the elastic restoring member adopted for operation, the magnet and the band that is tightened through, and it is possible to stably and accurately tighten the package against the package. The smoothness of the return operation such as opening and closing after exiting the band and after exiting the band is properly improved without the need for a noise-generating configuration, as in the case of the stripper mechanism in the machine, and it is efficient. This is an invention that is industrially effective because it can perform various functions. The invention according to the present invention uses an opening / closing door that performs an elastic restoring operation (<, but it does not employ a wire spring or the like as a resilient machine that performs the elastic restoring operation) and has a certain thickness. Since the plate-shaped member having the above is used, preferable and stable durability can be obtained.

In addition, according to the present invention, an aluminum band-like material is inserted into a flat connecting member of a plurality of pieces to be connected and assembled, and the connecting state of the piece is easy, quick and accurate. And the like. In particular, those obtained by molding the bridge member with polyacetal (POM), polybutylene terephthalate (PBT), or chrystle-resistant polyf: L-diene ether (PPE) resin have a sufficient strength and light weight. Thus, this type of band suspension operation device can be sufficiently reduced in weight and provided as a mechanism with excellent operability. According to the present invention, in the case of a large change in the size of the packaged product, the user of the packing machine will not be able to obtain a cheap output, and for the machine manufacturer, many components related to the size of the strip bar mechanism and the guide arch will be added. Integral molds require a variety of expensive dies, which can result in significant cost savings.

Claims

The scope of the claims

1. A series of band passages are formed so as to surround the package, and a plurality of bridges are connected by connecting members, and the band passages in the bridges are fixed. And an opening / closing door facing the packing body, and the opening / closing doors are attached to both side surfaces of the fixed portion by elastic restoring members. Band suspension operation mechanism _c

2. The band suspension of the packing machine according to claim 1, wherein a magnet and a material to be sucked by the magnet are opposed to each other between the fixed portion and each door. Operation mechanism.

3. The band passage in the bridge body is wide on the entry side in the band passage direction and narrow on the exit side, and the door is opened by the tightening force acting on the band through which the inner surface of the opposite opening / closing door is passed. In this case, the packing machine according to claim 1, characterized in that the band is an induction slope for guiding the band in a direction centered on an intermediate joining line of the opposed opening / closing door. Band suspension operating mechanism.

4. Ensure that the opposing door is closed by an elastic restoration member that is either an elastic synthetic resin plate, rubber K plate, elastic gold plate, or a composite member attached to the fixed portion of the bridge body. A band suspension operation mechanism for a packing machine according to any one of Claims 1 and 2 characterized by the above-mentioned.

5. At the fixed part of the bridge body, permanent magnets are mounted in the iron frame buried on both sides of the band passage in a state where the iron frame is slightly recessed, and elastically restored on both sides of the fixed part. The packing machine according to any one of claims 1 to 3, wherein a material to be attracted to the permanent magnet is attached to each of the open / close doors that are oppositely connected via a member. Band suspension operation mechanism in Japan.

6. The bridge body is made of polyacetal (POM), polybutylene terephthalate (PBT), friction-resistant polyphenylene ether (PPE) or other synthetic resin, and is attached to the fixed part together with the fixed part. The door according to any one of claims 1 to 4, wherein the open / close door is formed as an abrasion-resistant part in which the synthetic lipid is mixed with a fiber material made of glass or metal S. Band-turn operation mechanism in the packing machine described.

7. A flat connecting member is formed in the fixing portion of the plurality of pieces, and a flattening hole and a mounting member locking portion are formed. The target packing body is formed by the connecting member and the band-shaped connecting member inserted into the mounting hole. A plurality of said pieces having a length adapted to the size of said piece are connected as an aligned body without deviation.

The band turning mechanism in the packing machine according to item 1.

8. A locking groove is provided on both sides of the intermediate portion in the thickness direction of the piece body, and a bending locking portion formed at the base end of the metal opening / closing door is tiltably locked in the locking groove, An elastic restoring member is attached to the joint area on both sides of the opening / closing piece body to hold the front end of the door so that it can be opened and closed, and the bent locking parts at the base end of the door are held in the locking groove. 4. The band suspending operation device of the packing machine according to claim 1, wherein a holding member for performing the operation is provided.

9. The band suspension according to claim 8, wherein one or both of the elastic restoring member and the holding member is attached to the fixed portion of the bridge body by a screw or other stator. Time operation mechanism.

10. The package according to claim 8, wherein one or both of the elastic restoring member and the holding member are attached to the fixed portion of the bridge body by ultrasonic welding or another welding portion. Band operation mechanism in the machine.

11. The urethane foam or another elastic material is interposed between the free end side of the elastic restoring member and the fixed portion of the bridge body. Or the band suspending operation mechanism in the packing machine according to any one of Items 10 to 10 c.

12. The belt-like connecting member according to claim 7, wherein the band-like connecting member is a band-like member made of aluminum or aluminum alloy not covered with alumite or an S-metal equivalent thereto. A band suspending operation mechanism in the packing machine according to any one of the above.

13. Any of a series of bridges connected by a connecting member, which can be attached to and detached from a frame that is configured to receive a package by a mounting member that is locked by a mounting member locking portion. The band-turning operation mechanism in the packing machine according to claim 1, wherein the band-turning operation mechanism is provided.

14. The connecting portion has a screw shaft provided with an elastic engaging claw opposite to the groove-shaped locking portion provided opposite to the fixed portion of the piece body, and the screw shaft is provided on the frame body. 14. The band suspending operation mechanism in a packing machine according to claim 13, further comprising: a stopping portion, and an adjusting means for adjusting a mounting position of the elastic engaging claw. .