JP2010280428A - Package conveying device of outer bag packaging machine, and outer bag packaging machine equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying device of an outer bag packaging machine capable of enhancing the yield and the tact time, and enhancing the production efficiency accordingly with its simple and inexpensive constitution. <P>SOLUTION: The conveying device of the outer bag packaging machine 100 receives a package FH produced from a packaging machine 10 for producing packages with a content being filled in a packaging machine, and executes the outer bag packaging with the package FH as its content. The conveying device has a pair of endless belts 102A and 102B which are arranged opposite to each other so that the package FH is successively fed in the conveying direction while the package is received inside a strip-like outer bag packaging film F' folded back at an open upper end, and the package FH and the outer bag packaging film F' are held together. When a base 110 is moved to the downstream side in the conveying direction, the rotation of the endless belts is restricted, while the rotation of the endless belts is permitted when the base 110 is moved to the upstream side in the conveying direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention belongs to the technical field of an automatic packaging machine that automatically fills and packages a material to be packaged (contents) using a packaging film (packaging material).

  For example, Patent Document 1 describes a packaging machine that produces a tea bag (pyramid pack) such as a tetratype that contains tea leaves or the like. In relation to such a packaging machine, for example, The tea bag packed by the packaging machine (tea bag packing machine) may be combined with the outer bag packing machine to wrap the outer bag as a content in the tea bag. When sending tea bags, place an outer bag packing machine under the tea bag packing machine, transport the tea bag that has been packed by the tea bag packing machine to the outer bag packing machine using natural fall, etc. A configuration in which an outer bag is packaged by a bag packaging machine may be employed.

JP 2007-320649 A

  However, when such a configuration is adopted, there is a possibility that the tea bag itself cannot be accurately put into the outer bag packaging because the natural fall phenomenon is used. Or the bag may be caught at the entrance of the outer bag package, or the posture of the tea bag thrown into the outer bag package may be disturbed, resulting in excessive swelling of the outer bag package and adversely affecting subsequent processes. There was a concern.

  In addition, if a part using the natural fall phenomenon is incorporated in the middle of the transport path, the tea bag itself is lightweight, so it is necessary to consider a certain drop time. However, there is a situation in which productivity cannot be increased beyond a certain level due to restrictions on speeding up the operation speed of the tea bag packaging machine and the tea bag outer bag packaging machine.

  Furthermore, in the outer bag packaging machine, there is a possibility that the contents may move freely in the outer bag body during transportation, which may adversely affect the packaging quality. For this reason, the transportation speed may have to be reduced. However, it is impossible to carry out outer bag packaging efficiently at high speed, which may lead to deterioration in yield and tact time, and consequently, production efficiency.

  The present invention has been made in view of such a situation, and has a simple and inexpensive configuration, and an improvement in yield and tact time, and in turn, a transport device for an outer bag packaging machine that can improve production efficiency. It is an object of the present invention to provide an outer bag packaging machine provided with the transport device.

For this reason, the transport device of the outer bag packaging machine according to the present invention is:
A transport device for an outer bag packaging machine that receives a package produced from a packaging machine that produces a package filled with contents in a package, and performs outer bag packaging using the received package as contents. ,
While sequentially sending the outer bag packaging film in the conveying direction with the package received inside the belt-shaped outer bag packaging film folded back at the upper end,
A pair of endless belts arranged to face each other so as to sandwich the received package and the outer bag packaging film;
When the base supporting the endless belt moves to the downstream side in the transport direction of the outer bag packaging film, the rotation of the endless belt is restricted,
When the base that supports the endless belt moves to the upstream side in the transport direction of the outer bag packaging film, the endless belt is allowed to rotate.

  In the present invention, the restriction and allowance of the rotation of the endless belt is performed by a one-way clutch provided between a rotating body around which the endless belt is wound and a rotation support shaft thereof. it can.

  In the present invention, when the base supporting the endless belt moves in the direction opposite to the conveying direction of the outer bag packaging film, the rotational force is transmitted to the endless belt using the moving operation. can do.

  An outer bag wrapping machine according to the present invention includes the above-described outer bag wrapping machine transport device.

  According to the present invention, there is provided a transport device for an outer bag packaging machine that can improve yield and tact time, and thus improve production efficiency, while having a simple and inexpensive configuration, while having a simple and inexpensive configuration. It is possible to provide an outer bag packaging machine provided with the conveying device.

It is a front view showing roughly the whole composition of the automatic packing machine concerning one embodiment of the present invention. It is a side view which shows roughly the whole structure of the automatic packaging machine which concerns on embodiment same as the above. It is a front view which extracts schematically the rotary packaging body feed mechanism (packaging body conveyance apparatus) part which concerns on embodiment same as the above. It is a side view which extracts and shows schematically the rotary packaging body feed mechanism part which concerns on embodiment same as the above. It is a figure for demonstrating the motion of the package delivery arm and finger part of the rotary packaging body feed mechanism (packaging body conveyance apparatus) which concerns on embodiment same as the above. (A) is a side view of FIG. 5, (B) is a side view of (A). It is a figure explaining the difference in the direction of a horizontal seal at the time of producing a pyramid pack (The figure seen from the direction along the conveyance direction of a packaging film, (A) shows a parallel position, (B) is a twist position. Is shown). It is a figure explaining the difference in the direction of a horizontal seal at the time of producing a pyramid pack (It is the figure seen from the front of an automatic packaging machine. For easy understanding, it shows two or more pyramid packs FH which are originally cut off continuously. Correspondingly, a plurality of originally single horizontal seal bars are shown depending on the direction). It is a figure (initial position) explaining the mode of operation | movement of the outer bag packaging machine which concerns on embodiment same as the above. It is a figure (state of conveyance completion) explaining the mode of operation of the outer bag packaging machine which concerns on embodiment same as the above. It is a figure explaining the mode of operation | movement of the outer bag packaging machine which concerns on embodiment same as the above (immediately after cutting off the package FB). It is a figure explaining the mode of operation | movement of the outer bag packaging machine which concerns on embodiment same as the above (in the middle of return to an initial position). It is a figure explaining the mode of operation | movement of the outer bag packaging machine which concerns on embodiment same as the above (return completion to an initial position).

  Hereinafter, an embodiment of an automatic packaging machine according to the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

  FIG. 1 is a front view of an automatic packaging machine 1 according to an embodiment of the present invention, and FIG. 2 is a side view of the automatic packaging machine 1 according to the embodiment.

  The automatic packaging machine 1 according to the present embodiment includes a pyramid pack packaging machine 10 that produces a pyramid pack filled with contents (for example, a tea bag filled with tea leaves), and a pyramid pack produced thereby. And an outer bag packaging machine 100 for packaging the outer bag.

First, the pyramid pack packaging machine 10 according to the present embodiment will be described.
As shown in FIGS. 1 and 2, the pyramid pack packaging machine 10 measures the contents supplied from the hopper 11 containing the filling material such as black tea and green tea, and the packaging film F by weighing the contents supplied from the hopper 11 as in the past. Is formed into a cylindrical shape, and a filling chute 12 for charging the measured content into the cylindrical packaging bag, and a vertical sealing device (anvil and anvil) for applying a vertical seal to the packaging film F formed into a cylindrical shape. An ultrasonic horn), a transport mechanism for transporting the cylindrical packaging film F to the post-process, and a lateral seal device 13 (which is disposed in the lateral seal device 13 and laterally rotates horizontally 90 degrees while rotating horizontally). An anvil 14 and an ultrasonic horn 15) of an ultrasonic device for sealing and cutting are provided.

  In the pyramid pack automatic packaging machine 10, the packaging film F drawn from the raw roll FT by the film feeding mechanism is fed into the filling chute 12 to be formed into a cylindrical shape, and then both ends thereof are sealed by a vertical sealing device. Thus, a vertical seal FZ (see FIG. 8) is formed.

And the packaging film FA (refer FIG. 7) sealed by the cylindrical shape is conveyed below by a conveyance mechanism, and is sent into the horizontal sealing apparatus 13. FIG.
In the horizontal sealing device 13, a horizontal sealing can be performed by the anvil 14 and the ultrasonic horn 15 of the horizontal sealing device 13 while sandwiching the cylindrical packaging film FA between the horizontal sealing bars 16 and 17.

  In addition, as shown in FIGS. 7A and 7B, the anvil 14, the ultrasonic horn 15, and the horizontal seal bars 16 and 17 of the horizontal sealing device 13 are alternately 90 with respect to the cylindrical packaging film FA. Rotate horizontally and operate in order to detach while applying lateral seals, thereby producing individual pyramid packs.

  Here, FIG. 7A shows “lateral seal in a parallel position (lateral seal in which a seal surface is formed in a direction substantially parallel to the plane of FIG. 1) when the packaging film FA is seal-molded into a pyramid pack FH shape. It is the figure which demonstrated roughly operation | movement of the horizontal seal bars 16 and 17 in the case of ".

  FIG. 7B shows a horizontal seal at the twisted position (substantially orthogonal to the plane of FIG. 1) when the packaging film FA is formed into a pyramid pack FH shape by rotating 90 degrees horizontally from the state of FIG. FIG. 7 is a diagram schematically illustrating the operation of the horizontal seal bars 16 and 17 when a horizontal seal in which a seal surface is formed in the direction of “

  In the horizontal sealing operation at the parallel position shown in FIG. 8, the horizontal seal bars 16 and 17 are pressed from the depth direction (the direction corresponding to FIG. 7A) in the plane of FIG. 8 so as to sandwich the cylindrical packaging film FA. Then, horizontal sealing is performed by the anvil 14 and the ultrasonic horn 15 of the horizontal sealing device 13, and the cylindrical packaging film FA is formed into a flat shape.

  When the horizontal sealing operation at the parallel position is completed, the packaging film FA ′ is filled with contents such as black tea and green tea, and then the horizontal sealing bars 16 and 17 are once opened to lower the packaging film for one pack downward. And the horizontal sealing device 13 (anvil 14, ultrasonic horn 15, horizontal sealing bars 16, 17) is rotated 90 degrees horizontally for the horizontal sealing operation at the twisted position.

  In the horizontal sealing operation at such a twisted position, the horizontal sealing bars 16 and 17 are pressed from the left and right direction in FIG. 8 (the direction corresponding to FIG. 7B) so as to sandwich the cylindrical packaging film FA. A horizontal seal is applied by the anvil 14 and the ultrasonic horn 15 of the sealing device 13 to form the cylindrical packaging film FA into a flat shape.

  In actual seal molding, when the horizontal seal at the parallel position (or twisted position) is finished, the packaging film FA is filled with a filling material such as black tea or green tea, and then the packaging film FA for one pack is downward. After that, the horizontal seal is performed at the twisted position (or parallel position), and thereafter, this operation is continuously repeated. At the same time, the lateral seal portion is cut up and down to separate the molded pyramid pack FH.

  Here, in the automatic packaging machine 1 which concerns on this Embodiment, as shown in FIG. 1, FIG. 2, the packaging body packaged in the pyramid shape (for example, tetra shape) with the pyramid pack packaging machine 10 is carried out with an outer bag. An outer bag packaging machine 100 for packaging is provided.

  The outer bag packaging machine 100 is supplied with the pyramid packs FH produced by the pyramid back packaging machine 10 in order via the rotary package feeder 200.

  As shown in FIGS. 1 and 2, the rotary package feeder 200 is arranged between the pyramid pack FH between the pyramid pack packaging machine 10 and the outer bag packaging machine 100 in order to deliver the pyramid pack FH. The eight packaging body delivery arms 210 are provided at substantially equal intervals in the circumferential direction of the substantially disc-shaped base portion 201. Here, eight is described as an example, but the number is not limited to this.

  The base portion 201 is intermittently driven to rotate around the rotation center shaft 201A by an electric drive motor 203 or the like according to a delivery timing or the like.

  As shown in FIGS. 3 to 5, etc., the packaging body transfer arm 210 is slidably attached to the base portion 201 via the slide guide 212, respectively. The base part 201 can be extended and contracted independently and independently in the radial direction of the base part 201 (the axial direction of the arm 210). Note that the extension direction (slide direction) is not limited to the radial direction, but only needs to have a radial component.

  A groove cam 202 is fixedly attached to the outer bag packaging machine 100 around the rotation center axis 201 </ b> A of the base portion 201. As shown in FIG. 3, the groove cam 202 engages with a cam follower 211 provided on the base end side of each arm 210 and expands and contracts in the radial direction of each arm 210 in conjunction with the rotation of the base portion 201. It is comprised so that operation | movement etc. can be controlled.

  As shown in detail in FIG. 5, fingers 220 </ b> A and 220 </ b> B for sandwiching a package (for example, a pyramid pack) are provided on the distal end side of each arm 210. It is rotatably supported with respect to the arm 210 via pivots 221A and 221B on the base end side of 220B.

  Further, a slide rotation shaft 213 is attached to the arm 210 so as to be slidable in the axial direction via a linear guide portion 214 fixed to the arm 210, and a guide provided at the tip of the slide rotation shaft 213. Engaging pins 222A and 222B attached to the fingers 220A and 220B are engaged with the groove 215, respectively.

  For this reason, when the driving force is transmitted to the cam follower 213A by an actuator such as an air cylinder (not shown) and the slide rotation shaft 213 is slid to the right relative to the arm 210 from the state of FIG. As shown in FIG. 5B, when the distal ends of the fingers 220A and 220B are expanded, and the slide rotation shaft 213 is slid relative to the arm 210 in the left direction in FIG. As shown in FIG. 5A and FIG. 5C, the fingers 220A and 220B operate so that the tip ends thereof are narrowed, and the fingers 220A and 220B sandwich or release the package FH by such an operation. Be able to.

  In the above description, both fingers 220A and 220B are configured to be pivotable about pivots 221A and 221B, respectively, but not limited to this, either one is configured to be pivotable, and the other cooperates with one. However, it is also possible to adopt a configuration that does not pivot while assisting the clamping.

  Furthermore, the fingers 220A and 220B according to the present embodiment are integrally rotated with the slide rotation shaft 213, and are slid and rotated with respect to the arm 210 and the base portion 201 via the bearing 214A as shown in FIG. The shaft 213 is configured to be rotatable about 90 °. The rotational driving force can be configured such that the driving of an actuator such as an air cylinder (not shown) is transmitted to the cam follower 223.

  The fingers 220A and 220B are configured to be rotatable about the axis of the slide rotation shaft 213 in this way when the pyramid pack FH is sequentially carried out from the vertical teabag packaging machine 10 one by one. 7 and FIG. 8, since the horizontal sealing direction is carried out with a twist angle that differs by 90 ° one by one when viewed from the direction along the carry-out direction, in this state twisted by 90 ° in order. In order to pinch the pyramid pack FH that is carried out accurately, the fingers 220A and 220B that are going to be received are configured so as to be able to rotate 90 ° relative to the arm 210 and the base portion 201 correspondingly.

The operation of the rotary package feeder 200 having such a configuration will be described below.
Here, for the sake of simplicity of explanation and easy understanding, the position where the direction in which the fingers 220A and 220B are sandwiched with respect to the disk plane of the base 201 is substantially parallel is defined as a parallel position (FIG. 7A). The position where the fingers 220A and 220B are sandwiched by about 90 ° with respect to the disk plane of the base portion 201 is referred to as a twisted position (corresponding to (B) in FIG. 7), and May be explained in

  The disc-shaped base portion 201 is driven to rotate around the rotation center shaft 201A by the drive motor 203 counterclockwise in the plane (front side) of FIGS. 1 and 3 and the eight package transfer arms 210 mounted. According to the movement, description will be made in the order of position 1 to position 8 in order from the uppermost position toward the rotation direction. Note that the rotational drive is intermittent, and each arm 210 is configured to pause when it arrives at each position from position 1 to position 8.

<Position 1: Top position>
The arm 210 having reached the position 1 by rotating the disk-shaped base portion 201 counterclockwise in the plane of FIG. 3 receives the pyramid pack FH manufactured by the vertical teabag wrapping machine 10, and therefore, FIG. From the state, the fingers 220A and 220B are expanded, and the arm 210 is extended radially outward while being guided by the linear guide 212 (position 1 in FIG. 3 in the extended state, FIG. 5B). State), and the pyramid pack FH is received between the fingers 220A and 220B.
Thereafter, in synchronization with the cutting timing of the horizontal seal of the vertical teabag packaging machine 10 and the like, the slide rotation shaft 213 is slid downward in FIG. 3 and the tips of the fingers 220A and 220B are closed, so that the pyramid pack FH The arm 210 is further contracted inward in the radial direction while being guided by the linear guide 212 (refer to the position at the time of contraction at position 1 in FIG. 3, the state of FIG. 5C), and the pyramid pack FH The receiving operation is completed.
In addition, when the package to receive is the pyramid pack FH, the rotation angle of the slide rotation shaft 213 is the parallel position described above according to the twist angle of the pyramid pack FH discharged from the vertical teabag packaging machine 10. And the twist position are controlled so as to appear alternately.

<Position 2>
In the position 2, depending on the twist angle of the pyramid pack FH at the position 1, the rotation angle of the slide rotation shaft 213 and the fingers 220A and 220B are in the twist position (see position 1 in FIG. 3). The slide rotation shaft 213 is rotated by approximately 90 °, and the positions of the fingers 220A and 220B are adjusted to parallel positions as shown in position 2, so that the pyramid pack FH can be easily carried into the packaging film of the outer bag packaging machine 100. Prepare to.
If the fingers 220A and 220B are in the parallel position at position 1 (the position where the fingers 220A and 220B are rotated by approximately 90 ° around the slide rotation axis 213 with respect to the position 1 in FIG. The parallel position is maintained as it is without rotating the rotary shaft 213 by approximately 90 °.
Similarly, in the case where the state of the package discharged from the vertical teabag packaging machine 10 is not changed according to the carrying-out order, such as a flat package, instead of the pyramid pack, the slide rotation shaft at the position 2 is similarly applied. The parallel position is maintained as it is without rotating 213 approximately 90 °.

<Positions 3 and 4>
The arm 210 is gradually slid to the outer peripheral side along the groove cam 202 while maintaining the state in which the pyramid pack FH is sandwiched between the fingers 220A and 220B.

<Position 4 to Position 5>
The outer bag film F ′ of FIG. 3 is folded at the lower side with the folding line in the outer bag packaging machine 100, and is conveyed rightward in FIG. 3 at a predetermined speed.
In synchronization with this, the arm 210 is also driven to rotate counterclockwise, and the fingers 220A and 220B and the sandwiched pyramid pack FH are folded back and opened during the transition from position 4 to position 5. It is in a state of being inserted between the upper end and the outer bag film F ′ to reach position 5.

<Position 5>
The position 5 is a position where the arm 210 has reached the direction along the substantially vertical direction, and the pyramid pack FH sandwiched between the fingers 220A and 220B is inserted between the outer bag films F ′ sufficiently and accurately. It is in a state.
In this state, for example, the outer bag packaging machine 100 can be configured to perform vertical sealing on the outer bag film F ′.
On the other hand, the tips of the outer bag fingers 220A and 220B are opened to release the pyramid pack FH, and the arm 210 is driven by an actuator such as an air cylinder to move along the groove cam 202 in the retracted position (lifted position) shown in FIG. Moved to. Thereby, the fingers 220A and 220B are pulled out from between the outer bag films F ′ while leaving the pyramid pack FH on the outer bag film F ′ side.
In addition, it can be supported by the ratchet mechanism 224 or the like so as to restrict the arm 210 pulled up to the retracted position from returning downward due to gravity.

The operation as described above is performed, and the delivery of the pyramid pack FH from the fingers 220A and 220B to the outer bag packaging machine 100 is completed.
In addition, when the arm 210 and the fingers 220A and 220B are pulled out to the lifting position of FIG. 3, the outer bag film so that the pyramid pack FH can stably stay between the outer bag films F ′. A configuration in which the pyramid pack FH between F ′ is pressed from the outside of the outer bag film F ′ can also be adopted.

<Position 6 to Position 8>
Between the position 6 and the position 8, the arm 210 is rotated relatively to the center side according to the groove cam 202 (the movement trajectory of the tips of the fingers 220A and 220B in order to reduce the size of the apparatus and to secure the space). The slide rotation shaft 213 is rotated so that the fingers 220A and 220B are parallel to correspond to the twist angle of the pyramid pack FH when the pyramid pack FH is received at the next position 1). Set to position or twist position.
If the ease of pinching by the fingers 220A and 220B does not change depending on the carrying-out order from the packaging machine, such as a flat package, instead of the pyramid pack, it slides between position 6 and position 8. The operation of rotating the rotary shaft 213 by approximately 90 ° can be omitted.

  As described above, according to the rotary package feeder 200 according to the present embodiment, the package produced by the packaging machine can be reliably and rapidly supplied into the outer bag body of the outer bag packaging machine. Therefore, the yield and tact time can be improved, and the production efficiency can be improved.

  By the way, in the outer bag packaging machine 100 which concerns on this Embodiment, as shown in FIG. 1, the packaging film F 'pulled out from the raw fabric roll FT2 by which the packaging film F' for outer bags was wound is A. After the pyramid pack FH is received at the above-described position 5 in a state where the upper end is folded in two in the section, it is sequentially conveyed to the right in FIG. 3 as shown in FIG. While supplying an inert gas or the like into the interior of the container, a vertical seal is applied to both sides of the pyramid pack FH and a horizontal seal is applied to the upper end of the pyramid pack FH.

  In addition, when a relatively high-speed operation is performed, there is a risk that the pyramid pack FH may loosen inside the packaging film F ′ folded in two with the upper end opened. The outer bag packaging machine 100 according to the present embodiment is devised so that the pyramid pack FH can be packaged with the outer bag with high reliability.

  That is, as shown in FIG. 9, in the initial position, the outer bag packaging machine 100 is driven by an actuator such as an air cylinder after receiving the pyramid pack FH in the packaging film F ′ at the position 5 described above, The pyramid pack FH in the packaging film F ′ is sandwiched by a pair of push arms 101A and 101B that are slid in directions toward or away from each other (see FIG. 9B).

In this state, the finger 220A (220B) is pulled up to the retracted position in FIG.
Note that the endless belts 102A and 102B sandwich the packaging film F ′ (including the pyramid pack FH if the pyramid pack FH has already been received) on the downstream side of the push arms 101A and 101B in the conveyance direction of the packaging film F ′. is doing. The packaging film F ′ is guided by the conveyance guide rail 114 and supported so as to suppress conveyance displacement and the like.

  As shown in FIGS. 9B and 9C, the endless belts 102A and 102B are arranged to face each other with a predetermined section on both sides of the packaging film F ′, and each of the endless belts 102A and 102B has a roller 103A (or 103B) and a roller. It is wound around 104A (or 104B).

  A predetermined number of pressing rollers 111 are arranged inside the endless belt 102A, and each pressing roller 111 is elastically urged in the direction of arrow X shown in FIG. 9C. On the other hand, a fixing plate 112 is provided inside the endless belt 102B, and the endless belt 102A is pressed against the fixing plate 112 by an elastic biasing force applied to the pressing roller 111. And the endless belt 102B, the packaging film F ′ and the pyramid pack FH can be clamped with an appropriate clamping force. Reference numeral 113 denotes a tension adjusting roller.

  The pair of rollers 103A and 103B are pivotally supported on shafts 103a and 103b via one-way clutches (not shown), respectively. The shafts 103 a and 103 b are attached to the frame (base) 110 of the outer bag packaging machine 100 substantially integrally.

  As shown in FIG. 9A, pinion gears 105A and 105B are attached to the shafts 103a and 103b, and rack gears 106A and 106B mesh with the pinion gears 105A and 105B. The rack gears 106A and 106B are attached to the base of the automatic packaging machine 1 substantially integrally.

  Here, the one-way clutch (not shown) is used when the packaging film F ′ is fed in the transport direction in the plane of FIG. 9C, that is, the pinion gear 105A (105B) and the shaft 103a (103b) are moved to the arrow Y (Y ′ ) When rotating in the direction opposite to the direction, the roller 103A (103B) is free to rotate with respect to the shaft 103a (103b), while the pinion gear 105A (105B) and the shaft 103a (103b) are rotated. When rotating in the direction of arrow Y (Y ′), the roller 103A (103B) acts to rotate integrally with the shaft 103a (103b).

  The outer bag packaging machine 100 (frame 110) is configured to be movable relative to the base of the automatic packaging machine 1 in the conveying direction of the packaging film F ′ via, for example, a linear guide. The bag packaging machine 100 (frame 110) has the same speed as the conveyance speed of the packaging film F ′ in order to perform the vertical sealing of the packaging film F ′ while holding the pyramid pack FH. It is moved by an electric motor or the like.

In this predetermined section, the rollers 103A and 103B do not rotate by the action of the one-way clutch described above, that is, the endless belts 102A and 102B do not rotate, and the packaging film F ′ and the pyramid pack between them are not rotated. While sandwiching the FH, the outer bag packaging machine 100 (frame 110) is at the same speed as the conveyance speed of the packaging film F ′, downstream of the packaging film F ′ in the conveyance direction with respect to the base of the automatic packaging machine 1. Will move.
Therefore, the packaging film F ′ and the pyramid pack FH can be conveyed accurately and reliably without the pyramid pack FH moving freely in the packaging film F ′.
In addition, while reaching the position of FIG. 10, the top seal is applied by the horizontal sealing device 120 (which is disposed substantially integrally with the base of the automatic packaging machine 1), and the vertical sealing device 130 A seal is applied.

  Then, when the end point of the predetermined section (position in FIG. 10) is reached, as shown in FIG. 11, the package FB in which the pyramid pack FH is wrapped with the packaging film F ′ is cut (cut by the vertical seal device 130 or the cutter). The outer bag packaging machine 100 (frame 110) starts moving in the direction opposite to the conveyance direction of the packaging film F ′, that is, returning to the initial position (FIG. 9). As shown in FIGS. 10C and 11C, the push arms 101A and 101B are in a state of being retracted from the packaging film F ′ with the distance between the ends thereof being widened.

  At this time, since the outer bag packaging machine 100 (frame 110) needs to return to the initial position while accurately pinching the packaging film F ′ and the pyramid pack FH on the upstream side of the separated outer bag packaging body FB, the endless belt is required. 102A and 102B are desired to return the outer bag packaging machine 100 (frame 110) to the initial position without causing slippage between the packaging film F ′ and the pyramid pack FH conveyed in the right direction in FIG. It is.

  For this reason, in the outer bag packaging machine 100 according to the present embodiment, the rack gear fixed to the base of the automatic packaging machine 1 when the outer bag packaging machine 100 (frame 110) is moved in the left direction in FIG. The shafts 103a and 103b and then the rollers 103A and 103B are rotated by the pinion gears 105A and 105B meshed with the 106A and 106B, whereby the endless belts 102A and 102B are conveyed in the right direction in FIG. It is possible to rotate smoothly while applying a predetermined load without causing slippage between the packaging film F ′ and the pyramid pack FH.

  Accordingly, even when the outer bag packaging machine 100 (frame 110) is returned to the initial position, the packaging film F ′ and the pyramid pack FH can be kept in good condition by the endless belts 102A and 102B while applying a predetermined load. Further, it is possible to reliably prevent the pyramid pack FH from floating inside the packaging film F ′.

Thereafter, through the process shown in FIG. 12, the outer bag packaging machine 100 (frame 110) is further moved leftward in the figure, and returned to the initial position as shown in FIG.
FIG. 13 shows a state in which the next pyramid pack FH is fed by the finger 220A (220B), and then the state shifts to the state of FIG. 9 in which the pyramid pack FH is held between the push arms 101A and 101B. Is done.
By repeating such an operation, in the automatic packaging machine 1 according to the present embodiment, the pyramid pack FH can be individually and individually wrapped in an outer bag.

  The horizontal sealing device 120 and the vertical sealing device 130 can use, for example, an electrothermal heat seal bar, but are not limited thereto.

  Thus, according to the outer bag packaging machine according to the present embodiment, it is possible to reliably prevent the contents from floating in the outer bag body, so that the outer bag packaging is executed efficiently at high speed. Therefore, the yield and tact time can be improved, and the production efficiency can be improved.

  The embodiment described above is merely an example for explaining the present invention, and various modifications can be made without departing from the gist of the present invention.

1 Automatic packaging machine 10 Packaging machine (eg for pyramid packs)
100 Outer bag packaging machine 101A, 101B Push arm 102A, 102B Endless belt 103A, 103B Roller 103a, 103b Shaft 104A, 104B Roller 105A, 105B Pinion gear 106A, 106B Rack gear 110 Frame (base)
120 Horizontal Sealing Device 130 Vertical Sealing Device 200 Rotary Packaging Body Feeding Mechanism (Packaging Body Transfer Device)
201 Base portion 202 Groove cam 210 Packaging body transfer arm 211 Cam follower 213 Slide rotation shaft 220A, 220B Finger

Claims (4)

A transport device for an outer bag packaging machine that receives a package produced from a packaging machine that produces a package filled with contents in a package, and performs outer bag packaging using the received package as contents. ,
While sequentially sending the outer bag packaging film in the conveying direction with the package received inside the belt-shaped outer bag packaging film folded back at the upper end,
A pair of endless belts arranged to face each other so as to sandwich the received package and the outer bag packaging film;
When the base supporting the endless belt moves downstream in the transport direction of the outer bag packaging film, the rotation of the endless belt is restricted,
The transport device for an outer bag packaging machine, wherein the endless belt is allowed to rotate when the base supporting the endless belt moves upstream in the transport direction of the outer bag packaging film.   The restriction and allowance of the rotation of the endless belt is performed by a one-way clutch provided between a rotating body around which the endless belt is wound and a rotation support shaft thereof. Transport device for outer bag packaging machine.   The rotating force is transmitted to the endless belt using the moving operation when the base supporting the endless belt moves in the direction opposite to the conveying direction of the outer bag packaging film. Or the conveying apparatus of the outer bag packaging machine of Claim 2.   The outer bag packaging machine provided with the conveying apparatus of the outer bag packaging machine as described in any one of Claims 1-3.

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