JP2008265779A - Bag making/packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag making/packaging machine with easy access to the inside of the machine. <P>SOLUTION: The bag making/packaging machine 1 continuously packages articles with a film in bag-forms. An opening is provided in a rear surface of a main body 2. The machine includes a base member 21 for opening/closing the opening. A roll supporting unit 3 for supporting a film roll R is attached to the base member 21. In this case, the base member 21 approaches the operation face side S about a fulcrum point 3a provided on one side in a horizontal surface to open the base member 21 in a direction indicated by an arrow c. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bag making and packaging machine for continuously packaging articles in a bag shape with a film, and belongs to the technical field of article packaging.

  2. Description of the Related Art Conventionally, a structure for facilitating maintenance and maintenance is known in a bag making and packaging machine that continuously wraps articles such as potato chips in a bag shape with a film. This bag making and packaging machine is equipped with a door that opens and closes the front opening of the main body frame. By opening and closing this door, the inside of the main body can be accessed, and the film is formed inside from a strip shape to a cylindrical shape. The former can be removed.

JP 2005-41576 A

  By the way, in the bag making and packaging machine as described above, a film roll support unit, an electrical box, and the like constituting the bag making and packaging machine may be assembled around the main body that houses the drive mechanism and the control device. In order to access the inside of the main body, it is necessary to remove the unit and the box, and access is not easy.

  Then, this invention makes it a subject to provide the bag making packaging machine which makes access to the inside of a main body easy.

  In order to solve the above problems, the present invention is configured as follows.

  First, the invention according to claim 1 is a bag making and packaging machine for continuously wrapping an article with a film in a bag shape, wherein an opening is provided on a side surface of the main body and a lid member for opening and closing the opening. And a unit constituting the bag making and packaging machine is attached to the lid member.

  Next, the invention according to claim 2 is characterized in that, in the bag making and packaging machine according to claim 1, the lid member opens and closes with one side as a fulcrum in a horizontal plane.

  The invention described in claim 3 is the bag making and packaging machine according to claim 2, wherein one side surface orthogonal to the side surface provided with the opening is an operation surface of the bag making and packaging machine. The fulcrum of the lid member is set on the side opposite to the operation surface side.

  On the other hand, in the invention according to claim 4, in the bag making and packaging machine according to claim 2, one side surface orthogonal to the side surface provided with the opening is an operation surface of the bag making and packaging machine. The fulcrum of the lid member is set on the operation surface side.

  Further, the invention according to claim 5 is the bag making and packaging machine according to claim 4, wherein the operation surface is freely openable and closable around a side of the lid member in a horizontal plane. The fulcrum of the operation surface is configured using the fulcrum of the lid member.

  The invention according to claim 6 is the bag making and packaging machine according to claim 2, wherein the unit is a roll support unit that supports a film roll, and the lid member that supports the film roll is a horizontal surface. It is characterized in that it opens and closes with one side as a fulcrum.

  The invention according to claim 7 is the bag making and packaging machine according to claim 6, wherein the roll support unit has a horizontal support shaft that supports the film roll in a cantilevered manner. A base end portion of the support shaft is provided on the swing end side opposite to the fulcrum of the lid member.

  The invention according to claim 8 is the bag making and packaging machine according to any one of claims 2 to 7, wherein the lid is provided on the lower surface of the swing end opposite to the fulcrum of the lid member. It is characterized in that a grounding resistance member is provided which becomes a grounding resistance with the floor of the bag making and packaging machine when the member is opened and closed.

  The invention according to claim 9 is the bag making and packaging machine according to any one of claims 2 to 8, wherein the inner surface of the swing end side opposite to the fulcrum of the lid member and the main body. A positioning mechanism for positioning the lid member in the vertical direction with respect to the main body by engaging with each other when the lid member is closed at an internal corresponding position is provided.

  According to the first aspect of the present invention, since the lid member for opening and closing the opening on the side surface of the main body is provided, the inside of the main body can be easily accessed from the opening by opening and closing the lid member. it can. In that case, since the unit is supported by the lid member, a member for supporting the unit can be omitted.

  Next, according to the second aspect of the present invention, the lid member opening / closing structure is embodied, for example, even if the lid member is a heavy object, the fulcrum is supported on one side in the horizontal plane, not in the vertical direction. Opening and closing is easy, so opening and closing work is easy.

  According to the third aspect of the present invention, the side surface orthogonal to the side surface provided with the opening is the operation surface of the bag making and packaging machine, and the fulcrum of the lid member is on the side opposite to the operation surface side. Since it is set, the lid member is opened so as to move away from the operation surface side. Therefore, the work flow line between the operation surface side and the opening may be short with the lid member opened.

  On the other hand, according to the fourth aspect of the present invention, the lid member is opened so as to approach the operation surface side. Therefore, in a state where the unit attached to the lid member is opened, the operation from the operation surface side becomes easy for this unit. For example, when the roll support unit is attached to the lid member, when the film roll is exchanged in the open state, the exchange operation can be performed from the operation surface side.

  According to the fifth aspect of the present invention, since the operation surface can be freely opened and closed, and the operation surface and the opening / closing fulcrum of the lid member are made common, the apparatus configuration can be simplified. And if the opening is provided in the side surface by the side of an operation surface, the inside of a main body can be accessed from this opening.

  According to the invention described in claim 6, the unit is embodied as a roll support unit that supports the film roll, and the lid member can also be used to support the roll support unit. Furthermore, the lid member attached with a roll support unit or attached with a film roll is opened and closed on one side in the horizontal plane, not in the vertical direction. The work is easy.

  According to the seventh aspect of the present invention, the roll support unit is configured to support the film roll in a cantilevered manner, and the base end portion of the support shaft of the film roll is the lid when the lid member is closed. It is located on the swing end side opposite to the fulcrum of the member, and the tip end portion faces the fulcrum side, that is, the operation surface side. Accordingly, when the film roll is exchanged with the lid member closed, the exchange work can be performed from the operation surface side, and the work area can be integrated into one.

  Furthermore, since the base end portion of the support shaft is provided on the swing end side opposite to the fulcrum, for example, a layout in which two bag making and packaging machines whose operation is reversed to the left and right are adjacently arranged side by side. In this case, regardless of the open / closed state of both the lid members, the film roll replacement direction does not interfere with each other, and the film roll replacement operation can be performed without any inconvenience.

  By the way, when a heavy unit is attached to the lid member, opening and closing with one side as a fulcrum will cause it to open and close vigorously with inertial force, which may impact the body. According to the invention described in item 8, since the ground resistance member is provided on the lower surface of the swing end opposite to the fulcrum of the lid member, the inertial force is effectively suppressed.

  Further, the lid member to which the heavy unit is attached is supported by the grounding resistance member from below on the swing end side, so that the sinking of the part is prevented from being lowered and the fulcrum on the opposite side of the part is supported. The weight burden on the part is reduced and durability is maintained.

  According to the ninth aspect of the present invention, since the positioning mechanism is provided, the lid member can be correctly positioned in the vertical direction with respect to the main body in the closed state. This is especially effective when a roll support unit is attached to the lid member. Since the film roll can be supported at the correct position in the vertical direction from the fulcrum side to the opposite side, problems such as film meandering are avoided. Generation of defective packaging is prevented.

  Embodiments of the present invention will be described below.

  The bag making and packaging machine 1 according to the first embodiment of the present invention shown in FIG. 1 and FIG. 2 is a film of potato chips and other articles weighed to a target weight from an upper combination weighing device (not shown). A box-shaped main body 2 containing a former, a pull-down belt, a vertical sealing device, a horizontal sealing device, etc., which are the core, and a film roll R attached to the rear surface of the main body 2 A roll support unit 3 for supporting the film, a splicer 4 for connecting the ends of the front and rear films, and an electrical box 5 that is attached to an operation surface on one side of the main body 2 and accommodates electrical components.

  An opening is provided in the front surface of the main body 2, for example, from a door 11 that opens and closes the upper opening so that a former or the like inside the main body 2 can be taken out, and a lower opening for discharging the manufactured bag from the inside of the main body 2. A cover 12 that covers a protruding discharge conveyor (not shown) from above is provided.

  An opening is provided on the upper surface of the main body 2. A cover 13 is provided to cover the upper surface opening, and a hole 13a into which the lower chute of the upper combination weighing device is inserted is provided at the approximate center of the cover 13.

  Furthermore, a positioning member 14 is provided on one side of the cover 13 for positioning the bag making and packaging machine 1 in the front-rear and left-right directions with respect to the combination weighing device. The positioning member 14 extends in the front-rear direction, and the lower part is formed to have a size just placed on the main body frame 2a, and the upper part is wider than the lower part. Engaging recesses 14a and 14a are provided at two locations.

  That is, if the bag making and packaging machine 1 is arranged so that the engaging recesses 14a and 14a are engaged with a pair of leg members A and A hanging from the combination weighing device side, the bag making and packaging machine is provided for the combination weighing device. 1 can be positioned in the front-rear and left-right directions. Thereby, the work efficiency in correctly installing the bag making and packaging machine 1 below the combination weighing device can be improved, and further, for example, a protrusion for positioning can be eliminated from the floor surface, and the floor surface can be cleaned. Will improve.

  At the lower four corners of the main body 2, casters 15 ... 15 (not shown in FIGS. 1 and 2 are provided with reference numerals) for enabling the bag making and packaging machine 1 to move, and adjusters 16 ... 16 for fixing the height adjustable. And are provided.

  An opening is provided in the rear surface of the main body 2, and a plate-like base member 21 is provided so that the rear surface opening can be freely opened and closed. The roll support unit 3 is attached to the outer surface of the base member 21.

  The roll support unit 3 is of a type that supports the film roll R in a cantilever state, and has a L-shaped support frame 22 fixed to the base member 21 and a base end near the rear end of the support frame 22. A support shaft 23 having a portion 23a and extending to the operation surface side is provided, and a film roll R is attached to the support shaft 23 from the tip end portion 23b, thereby feeding out the film. .

  The base member 21 is of a type that opens and closes in a horizontal plane around a fulcrum 3a provided on one side, and this fulcrum 3a is provided on the operation surface side S at the rear end of the main body frame 2a. The electrical box 5 is provided with an opening provided on a side surface of the main body 2 so that the electrical box 5 can be opened and closed. The fulcrum 3 a also serves as an opening and closing fulcrum of the electrical box 5.

  The roll exchange in the bag making and packaging machine 1 is normally performed with the roll support unit 3 in the illustrated example closed, and the roll exchange in that case is performed from the direction indicated by the arrow D1. Therefore, there is no need for a space for roll replacement in the longitudinal direction of the bag making and packaging machine 1.

  As shown in FIGS. 2 to 4, a vertical positioning mechanism 30 is provided between the base member 21 and the main body 2 to maintain the vertical position of the base member 21 and thus the roll support unit 3 at a predetermined height. . That is, a support member 31 is fixed to the inner surface of the base member 21 on the side opposite to the fulcrum 3a, that is, the swing end 3b side, and a roller 32 is rotatably provided on the support member 31.

  On the other hand, the upper adjustment block 33 and the lower fixing block 34 are attached with bolts 35, 35, 36, 36 in a positional relationship corresponding to the roller 32 on the inner surface of the main body frame 2 a. In this case, the upper surface of the adjustment block 33 is formed by a horizontal surface 33 a that sets the front reference height H and an inclined surface 33 b that is inclined rearward and downward, and the adjustment block 33 extends downward from the fixed block 34. By operating the adjustment bolt 37 that is screwed from the inside, it can be moved in the direction of arrow a within a predetermined range.

  By the way, when a heavy object such as the roll support unit 3 is opened and closed around a fulcrum 3a provided on one side, the height on the fulcrum 3a side is stable, but the swing end 3b side is heavy. It tends to sink downward. For example, if the lower end of the roller 32 on the roll support unit 3 side is opened and sinks from the reference height H by the height ΔH, when the roll support unit 3 is closed in the direction of the arrow b, first, As indicated by the dotted line, the horizontal surface 33a on the main body frame 2a side rides on the inclined surface 33b of the adjustment block 33 that has been adjusted to the reference height H, and then the roller 32 runs up the inclined surface 33b as it closes. It will ride on 33a.

  As shown in FIG. 4, a caster 42 is attached to a lower surface of the inner surface of the base member 21 on the side of the swing end 3 b opposite to the fulcrum 3 a via an attachment member 41. And this caster 42 has the wheel 42a which shows moderate grounding resistance between the floor surfaces F. As shown in FIG.

  As shown in FIG. 5, the caster 15 has wheels 15a and is provided at the lower part of the main body frame 2a. On the other hand, the adjuster 16 is also provided at the lower part of the main body frame 2a. The grounding member 51 is grounded to the floor surface F, the screw bar 52 extends vertically, the nut 53 is screwed to the screw bar 52, and the upper part is large. And a lifting member 54 provided with a stopper portion 54a having a diameter. The elevating member 54 can be inserted into the block member 2b attached to the lower surface of the main body frame 2a. The elevating member 54 is raised and lowered and locked with a single touch by a mechanism (not shown).

  When the bag making and packaging machine 1 is first installed, as shown in FIG. 5A, by operating a lever or a pedal (not shown) until the stopper portion 54a comes into contact with the upper surface of the block member 2b. The elevating member 54 is lowered, the ground contact member 51 is landed on the floor surface F, and the wheel 15a of the caster 15 is separated from the floor surface F. In this state, the nut 53 is operated to raise and lower the elevating member 54 finely, and the bag making and packaging machine 1 is adjusted in parallel.

  On the other hand, when the bag making and packaging machine 1 is moved, as shown in FIG. 5 (b), the lifting member 54 is raised and locked with a single touch to separate the grounding member 51 from the floor surface F and the wheels 15a of the casters 15. On the floor F. Since the above-described parallel adjustment by the nut 53 has been completed, from the next installation, it is only necessary to lower the elevating member 54 until the stopper portion 54a contacts the upper surface of the block member 2b. As described above, when the adjuster 16 is used, the bag making and packaging machine 1 can be easily moved and maintained at a predetermined height during maintenance and inspection.

  With the above configuration, as shown in FIG. 6, the base member 21 for opening and closing the opening on the rear surface of the main body 2 is provided. As shown by the arrow D <b> 2 by opening the base member 21. The inside of the main body 2 can be easily accessed from the opening. In that case, since the roll support unit 3 is supported by the base member 21, a member for supporting the roll support unit 3 can be omitted. Further, the base member 21 to which the roll support unit 3 is attached or the film roll R is also attached and is made heavy is indicated by an arrow c about a fulcrum 3a provided on one side in the horizontal plane, not in the vertical direction. Since it opens and closes as shown, the weight burden is light and the opening and closing work is easy.

  Further, the base member 21 is opened in the direction of the arrow c so as to approach the operation surface side S provided with the electrical box 5. Therefore, when exchanging the film roll R with the roll support unit 3 attached to the base member 21 open, the exchanging operation can be performed from the operation surface side S as indicated by the arrow D3.

  Further, as shown in FIG. 7, the electrical box 5 is openable and closable around the fulcrum 3a. That is, the electrical box 5 and the base member 21 and thus the fulcrum 3a of the roll support unit 3 are shared. Therefore, the apparatus configuration can be simplified. Then, by opening the electrical box 5 in the direction of the arrow d, the inside of the main body 2 can be accessed from the opening as indicated by the arrow D4.

  Further, as shown in FIG. 2, the roll support unit 3 is configured to support the film roll R in a cantilever manner, and in a state where the base member 21 is closed, the base end portion 23a of the support shaft 23 of the film roll R is provided. Is positioned on the side of the swinging end 3b opposite to the fulcrum 3a of the base member 21, while the tip 23b faces the fulcrum 3a side, that is, the operation surface side S. Accordingly, when the film roll R is exchanged with the base member 21 closed, the exchange work can be performed from the operation surface side S as indicated by the arrow D1, and the work area can be integrated into one.

  By the way, in order to improve productivity, one combination weighing device is divided into, for example, left and right parts, and as shown in FIG. The packaging machines 1 'may be juxtaposed side by side. In that case, in the roll support units 3 and 3 'of the respective bag making and packaging machines 1 and 1', the base end portions 23a and 23a 'of the support shafts 23 and 23' are swinging ends opposite to the fulcrums 3a and 3a '. Therefore, regardless of the open / closed state of both base members 21, 21 ', the exchange directions D1, D1' of the film roll R are in a direction not interfering with each other, and the exchange work of the film roll R can be performed without any inconvenience. It can be carried out.

  As shown in FIG. 9, by opening the roll support units 3 and 3 'of the respective bag making and packaging machines 1 and 1' in the directions of arrows c and c 'around the fulcrums 3a and 3a', the arrows D2 and D2 Needless to say, access to the inside of the main bodies 2 and 2 'becomes easy as indicated by'.

  By the way, when the heavy-weight roll support unit 3 is attached to the base member 21, when it opens and closes around the fulcrum 3 a provided on one side, it opens and closes vigorously with inertial force. Although there is a possibility of giving an impact, as shown in FIG. 4, since a wheel 42a as a grounding resistance member is provided on the lower surface of the swing end 3b opposite to the fulcrum 3a of the base member 21, Inertial force is effectively suppressed.

  Further, the base member 21 to which the heavy-weight roll support unit 3 is attached is supported by the wheel 42a from the lower side on the swing end 3b side, so that the part 3b is prevented from sinking downward, and the part The weight burden of the fulcrum 3a part on the opposite side to 3b is reduced, and durability is maintained.

  As shown in FIG. 3, since the vertical positioning mechanism 30 is provided, even if the roller 32 on the roll support unit 3 side sinks from the reference height H by the height ΔH, 32 runs up the inclined surface 33b of the adjustment block 33 and then rides on the horizontal surface 33a, so that the vertical position of the roll support unit 3 is held at the reference height H, and the base member 21 is closed in a closed state. The main body frame 2a and thus the main body 2 can be correctly positioned in the vertical direction. This is particularly effective when the roll support unit 3 is attached to the base member 21, and the film roll R can be supported at the correct position in the vertical direction from the fulcrum 3a side to the opposite side. Is avoided and the occurrence of defective packaging is prevented.

  Next, a second embodiment will be described.

  As shown in FIG. 10, in the bag making and packaging machine 1 ″ in this case, an electrical box 5 ″ is attached to the operation surface, and attached to a base member 21 ″ that can open and close the rear surface opening of the main body 2 ″. The roll support unit 3 ″ is opened around the fulcrum 3a ″ located on the opposite side of the operation surface side S ″ as indicated by the arrow c ″, that is, away from the operation surface side S ″. Yes.

  In this case, when the roll support unit 3 ″ is in a closed state indicated by a two-dot chain line, the base end portion 23a ″ of the support shaft 23 ″ is at the fulcrum 3a ″, and the distal end portion 23a ″ faces the operation surface side S ″. The direction of the arrow D1 ″ is the roll exchange direction, and in the open state indicated by the solid line, the access to the inside of the main body 2 ″ is facilitated as indicated by the arrow D2 ″. Further, the roll support unit 3 ″ is open. The operation flow line between the operation surface side S ″ and the rear surface opening of the main body 2 can be short.

  It should be noted that the present invention is not limited to the above-described embodiment that has been specifically described in detail, and may be any that are within the spirit of the present invention.

  For example, in the first and second embodiments, the roll support units 3, 3 ′, 3 ″ are configured to support the film roll R in a cantilever state. .

  As described above, according to the present invention, a bag making and packaging machine that facilitates access to the inside of the main body is realized, which is widely suitable for the technical field of article packaging.

1 is a schematic perspective view of a bag making and packaging machine according to a first embodiment of the present invention. It is also a plan view. It is a principal part side view for demonstrating a vertical positioning mechanism, and shows the inner surface of the main body of the rocking | swiveling end side just before closing a base member. It is a figure which shows the inner surface by the side of the rocking | fluctuation end of a base member. It is the principal part side view which fractured | ruptured a part which shows the caster and adjuster of a bag making packaging machine lower part, (a) is at the time of installation, (b) is at the time of movement. It is a top view which shows the state which opened the roll support unit. It is a top view which shows the state which opened the electrical equipment box. It is a top view of the rear part at the time of arranging two bag-making packaging machines with the operation right-and-left reverse, and is the state which closed the roll support unit. Similarly, the roll support unit is open. It is a top view of the bag making packaging machine which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

1,1 ′, 1 ″ bag making and packaging machine 2,2 ′, 2 ″ main body 3,3 ′, 3 ″ roll support unit 3a, 3a ′, 3a ″ fulcrum 3b swing end 21,21 ′, 21 ″ base member (Cover member)
23, 23 ', 23 "Support shaft 23a, 23a', 23a" Base end 30 Positioning mechanism 42a Wheel (grounding resistance member)
F Floor R Film roll S, S ″ Operation side

Claims (9)

A bag making and packaging machine that continuously wraps articles in a bag shape with a film,
An opening is provided on the side of the main body,
A lid member for opening and closing the opening is provided;
A unit for forming the bag making and packaging machine is attached to the lid member. In the bag making and packaging machine according to claim 1,
The lid member opens and closes on one side in a horizontal plane with a fulcrum as a fulcrum. In the bag making and packaging machine according to claim 2,
One side surface orthogonal to the side surface provided with the opening is an operation surface of the bag making and packaging machine,
The bag making and packaging machine, wherein the fulcrum of the lid member is set on the side opposite to the operation surface side. In the bag making and packaging machine according to claim 2,
One side surface orthogonal to the side surface provided with the opening is an operation surface of the bag making and packaging machine,
The bag making and packaging machine, wherein the fulcrum of the lid member is set on the operation surface side. In the bag making and packaging machine according to claim 4,
The operation surface is openable and closable with the side on the lid member side as a fulcrum in a horizontal plane,
The fulcrum of the operation surface is configured using the fulcrum of the lid member. In the bag making and packaging machine according to claim 2,
The unit is a roll support unit that supports a film roll,
A bag making and packaging machine, wherein a lid member that supports a film roll opens and closes with one side as a fulcrum in a horizontal plane. In the bag making and packaging machine according to claim 6,
The roll support unit has a horizontal support shaft that supports the film roll in a cantilevered manner,
A bag making and packaging machine, wherein a base end portion of the support shaft is provided on a swing end side opposite to a fulcrum of the lid member. In the bag making and packaging machine according to any one of claims 2 to 7,
A grounding resistance member is provided on the lower surface of the oscillating end opposite to the fulcrum of the lid member, and serves as a grounding resistance with the installation floor of the bag making and packaging machine when the lid member is opened and closed. Characteristic bag making and packaging machine. In the bag making and packaging machine according to any one of claims 2 to 8,
By engaging the lid member with the inner surface of the swing end opposite to the fulcrum of the lid member and the corresponding position inside the body when the lid member is closed, the lid member is moved up and down with respect to the body. A bag making and packaging machine comprising a positioning mechanism for positioning in a direction.

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