JP2005015003A - Tape applicator - Google Patents

Abstract

[PROBLEMS] To seal a container 1 with a lid in which a seam between a main body 1b and a lid 1a is formed on the circumferential side, and can be sealed by sticking an adhesive tape continuously along the seam. A tape applicator A is provided.
A winding roller that holds a container with a lid between the processing table with a holding plate that can be moved up and down with respect to the processing table on which the container with the lid is placed, and that holds the tip of the adhesive tape. 11 is moved forward and brought into contact with the joint of the container 1 with the lid, and the periphery of the container 1 with the lid is rotated more than one turn in a state where the winding roller 11 is brought into contact with the container 1 with the lid. The adhesive tape drawn out from the tape reel 10 is continuously wound, and then the winding roller 11 is retracted to cut the adhesive tape with a cutter in the region stretched between the lidded container 1 and the winding roller 11. The tape applicator A is assumed.
[Selection] Figure 3

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention particularly relates to a packaging lid that can be sealed by sticking an adhesive tape continuously along the seam for a lid with a lid where a seam between the main body and the lid is formed on the circumferential side. The present invention relates to a tape applicator.
[0002]
[Prior art]
Conventionally, as a tape applicator capable of adhering adhesive tape to the joint between the main body and the lid of a container with a lid, a plate-like lid in which the joint between the main body and the lid is formed in the upper corner portion A roller for sticking an adhesive tape cut to a predetermined length to a lid upper surface edge along the upper corner portion of the lidded container, with one side protruding outward, There is known a roller including a roller that bends one side of the adhesive tape that protrudes outward and a roller that adheres one side of the folded adhesive tape to the side surface of the body of the lidded container (for example, , See Patent Document 1 and Patent Document 2).
[0003]
[Patent Document 1]
JP 50-77191 A
[Patent Document 2]
Japanese Patent Laid-Open No. 51-135792
[0004]
[Problems to be solved by the invention]
However, the above-mentioned conventional tape applicator attaches an adhesive tape while transferring a container with a lid on a belt conveyor, and can apply an adhesive tape to a joint parallel to the transfer direction, but it goes straight in the transfer direction. There is a problem that the adhesive tape cannot be applied to the joints to be made, and the joints cannot be continuously covered and sealed with the adhesive tape. In addition, the conventional tape applicator has a problem that it cannot be applied to a lid with a lid in which a joint between the main body and the lid is formed on the circumferential side.
[0005]
The present invention has been made in view of the above-described conventional problems. For a lidded container in which a seam between a main body and a lid is formed on the circumferential side, an adhesive tape is continuously stuck along the seam. An object of the present invention is to provide a sealing tape sticking device for packaging that can be sealed.
[0006]
[Means for Solving the Problems]
The present invention is a tape applicator for adhering an adhesive tape along the seam of a lidded container in which a seam between a main body and a lid is formed on the circumferential side for the above purpose,
A presser plate that can be raised and lowered with respect to the processing table on which the container with a lid is placed, and clamps the container with the lid between the processing table when lowered,
It is possible to hold the front end of the adhesive tape and to advance and retreat with respect to the lidded container sandwiched between the processing table and the presser plate. Sticking on the seam, rotating the circumference of the lidded container more than one turn while pulling out the adhesive tape on the seam, in contact with the lidded container, retreating and separating from the lidded container A winding roller,
A tape reel that holds the adhesive tape so that it can be pulled out as the winding roller rotates around the lidded container;
The present invention provides a tape applicator comprising a cutter for cutting an adhesive tape in a region stretched between a lidded container and a winding roller by separating the winding roller from the lidded container.
[0007]
In the present invention, the winding roller is capable of moving forward and backward with respect to the lidded container sandwiched between the processing table and the presser plate, moves forward to contact the lidded container, and contacts the lidded container. And the periphery of the container with the lid is rotated, the adhesive tape stuck on the seam is pressed against the container with the lid by the winding roller, and the rear end portion of the adhesive tape side of the adhesive tape cut by the cutter Having a pressing roller that rotates to a position exceeding, and moves backward to be separated from the lidded container,
The winding roller has a suction hole on the peripheral surface for sucking and holding the tip of the adhesive tape;
The winding roller and the pressing roller are attached to a turntable that can rotate in a horizontal direction, and can be rotated around the container with the lid by rotation of the turntable. Being capable of horizontal movement in a direction in which the pressing roller advances and retracts with respect to the lidded container,
When the winding roller and the pressing roller rotate around the lidded container by the rotation of the turntable, the horizontal movement of the turntable changes the distance from the rotation center of the turntable to the contact point of the winding roller and the lidded container. Controlled to absorb fluctuations in the adhesive tape winding speed due to
Is included as a preferred embodiment thereof.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be further described based on an example of a gas pack packaging apparatus using the tape applicator according to the present invention.
[0009]
First, based on FIG.1 and FIG.2, the outline | summary of the gas pack packaging apparatus using the tape sticking apparatus which concerns on this invention is demonstrated.
[0010]
In the figure, A is a tape applying apparatus according to the present invention, B is a traverser apparatus, C is a gas displacement apparatus, D is a sealed secondary processing apparatus, and FIG. 1 is a gas pack packaging using the tape applying apparatus A according to the present invention. FIG. 2 is a schematic view of the apparatus, and FIG. 2 is a diagram showing a state in which the lidded container 1 is conveyed by the traverser apparatus B shown in FIG.
[0011]
In the gas pack packaging apparatus of this example, for the container 1 with a lid, the tape application device A seals the joint between the lid 1a and the main body 1b, and the lidded container 1 is sealed with the traverser device B. To the gas replacement device C, the gas replacement device C replaces the inside of the lidded container 1 with, for example, nitrogen gas and seals it, and the sealed secondary processing device D raises the sealed state of the lidded container 1 and sends it out. It has become. In particular, the lidded container 1 of this example has a vent 67 (see FIG. 16) formed on the upper surface of the lid 1a for gas replacement inside the container by the gas replacement device C.
[0012]
The container 1 with a lid is formed such that the joint of the lid 1a and the main body 1b is formed on the circumferential side. In particular, the tape applicator A according to the present invention continuously adheres to the adhesive tape 2 (FIG. 7) along the joint. To FIG. 11) can be attached and sealed.
[0013]
The lidded container 1 to be processed is transported by a transport device 3 such as a belt conveyor and a traverser device B. After the container 1 with a lid is first carried onto the processing table 4 of the tape applicator A by the transport device 3, the adhesive tape 2 (see FIGS. 7 to 11) is wound around the seam and attached. Then, it is transferred again to the traverser device B by the transport device 3. As will be described later, the traverser device B has two transport arms 5 positioned on the left and right sides in the transport direction, and the lidded container 1 transferred to the traverser device B by the transport device 3 is the base of the transport arm 5. At the same time, the container 1 with the lid on which the gas replacement on the processing table 6 of the gas replacement device C is completed is sandwiched between the distal ends of the transfer arm 5 to move forward, and the lid is sandwiched between the bases of the transfer arm 5. The container 1 is transferred onto the processing table 6 of the gas displacement device C, and the lidded container 1 sandwiched between the leading ends of the transfer arm 5 is transferred onto the processing table 7 of the sealed secondary processing device D. Moreover, the container 1 with a lid | cover which the process by the sealing secondary processing apparatus D was completed is carried out by the conveying apparatus 3. FIG.
[0014]
Next, the tape applying apparatus A, the traverser apparatus B, the gas replacement apparatus C, and the sealed secondary processing apparatus D will be described in detail.
[0015]
(1) Tape applicator A
3 is an enlarged view of the tape applicator A, FIG. 4 is an enlarged view of the presser plate 8 and the turntable 9, and FIG. 5 is an enlarged view of a portion where the turntable 9 is attached to the rotary spindle 17. FIG. Is an explanatory view of a ring rail 29 and a pinion rack mechanism for horizontally moving the turntable 9, FIG. 7 is a bottom view of the turntable 9, and FIGS. 8 to 11 are mechanisms around the winding roller 11 and the pressing roller 12. 8 is a plan view showing a state before the start of winding of the adhesive tape 2, FIG. 9 is a plan view showing a state immediately after the start of winding of the adhesive tape 2, and FIG. 10 is near the corner portion of the container 1 with a lid. FIG. 11 is a plan view showing a state immediately before the end of winding of the adhesive tape 2.
[0016]
As shown in an enlarged view in FIGS. 3 and 4, the tape applicator A can be moved up and down with respect to the processing table 4 on which the transported container 1 with a lid is placed, and when it is lowered, A pressing plate 8 that sandwiches the lidded container 1 between the processing table 4, a turntable 9 that can be moved up and down with respect to the processing table 4, and that can move and rotate in the horizontal direction, and an adhesive from the tape reel 10. A winding roller 11 and a pressing roller 12 for attaching to the container 1 with a lid while pulling out the tape 2 (see FIGS. 7 to 11) are provided.
[0017]
The presser plate 8 has a top end attached to and suspended from a lower end of a first elevating shaft 14 connected to an elevating drive device 13 such as a servo motor, and is moved up and down by the operation of the elevating drive device 13. It is moved up and down with respect to the processing table 4 via one lifting shaft 14. The first elevating shaft 14 passes through the center of the support shaft 16 that is suspended from the upper end of the first elevating shaft 14 so as to be slidable up and down, and the presser plate 8 attached to the lower end of the first elevating shaft 14. Is located above the center of the processing table 4.
[0018]
The turntable 9 is held at a lower end of a rotation main shaft 17 attached to a lower portion of the support shaft 16 so as to be rotatable with respect to the support shaft 16 and slidable up and down.
[0019]
A driven gear 18 is formed at the upper end of the rotating main shaft 17, and a drive gear 19 is engaged with the driven gear 18. The drive gear 19 is provided at the tip of a rotational drive shaft 21 that is rotationally driven by a rotational drive device 20 held on the support shaft 16. Therefore, the turntable 9 attached to the rotation main shaft 17 operates around the support shaft 16 via the rotation drive shaft 21, the drive gear 19 and the driven gear 18 by operating the rotation drive device 20. At the same time, it can rotate horizontally.
[0020]
An intermediate table 22 is provided adjacent to the upper portion of the rotary main shaft 17. The intermediate table 22 is provided so as to be slidable up and down with respect to the support shaft 16, and is attached to the lower end of the second lifting shaft 24 that is moved up and down by the operation of the lifting drive device 23 provided on the support frame 15. Suspended. Further, the rotary spindle 17 is connected to the intermediate table 22 so as to be idled, but is connected to the intermediate table 22 so as to be movable up and down. Therefore, by operating the lifting / lowering drive device 23 and moving the second lifting / lowering shaft 24 up and down, the rotary main shaft 17 can be moved up and down together with the intermediate table 22, whereby the turntable 9 can be lifted and lowered. It is like that.
[0021]
The rotary drive shaft 21 and a third elevating shaft 25, which will be described later, pass through the intermediate table 22 so as to be slidable up and down, and the drive gear 19 and the driven gear 18 are respectively formed with teeth in the vertical direction. Thus, they can be shifted up and down while being engaged with each other.
[0022]
As shown in FIG. 5, the turntable 9 is held by the rotating spindle 17 by gripping a linear rail 26 provided on the upper surface of the turntable 9 with a rail holding portion 27 provided at the lower end of the rotating spindle 17. Has been done. The linear rail 26 is slidable in the longitudinal direction and is held by the rail holding portion 27, and the turntable 9 is horizontally movable in the longitudinal direction of the linear rail 26.
[0023]
On the other hand, as shown in FIGS. 3 and 4, the lower end of the third elevating shaft 25 movable up and down by the elevating drive device 28 attached to the support shaft 16 slidably passes through the intermediate table 22 and rotates. It extends to the side of the main shaft 17 and a ring rail 29 is attached to the lower end. The ring rail 29 is a donut-shaped rail that surrounds the rotation main shaft 17 with a space between the rotation main shaft 17 and is controlled to be lifted and lowered separately from the rotation main shaft 17 and the turntable 9 by the lift drive device 28. It is supposed to be.
[0024]
As shown in FIG. 6, the ring rail 29 has a U-shaped cross section, and a traveling roller 30 that travels along the inner side of the ring rail 29 is provided on the inner side. The upper end of the vertical rack 31 shown in FIGS. 3 and 4 is held. The lower end of the vertical rack 31 extends into a gear box 32 attached to the rotary main shaft 17.
[0025]
As shown in FIG. 6, the lower end portion of the vertical rack 31 extending into the gear box 32 is engaged with the first pinion 33 in the gear box 32. A transmission gear 34 provided coaxially with the first pinion 33 and a second pinion 35 rotated via the transmission gear 34 are provided in the gear box 32. The second pinion 35 meshes with a horizontal rack 36 provided on the turntable 9 in parallel with the linear rail 26.
[0026]
The ring rail 29 is controlled to move up and down with the rotation of the turntable 9 and moves the rotation 9 table in the horizontal direction. As described above, the rotation main shaft 17 and the turntable 9 rotate integrally, Along with this, while the traveling roller 30 is traveling inside the ring rail 29, the vertical rack 31 that is lifted and lowered through the lifting drive device 28 and the third lifting shaft 25 and meshed with the first pinion 33 is moved up and down. Is. When the first pinion 33 rotates as the vertical rack 31 moves up and down, the second pinion 35 rotates through the transmission gear 34, and a force that moves the horizontal rack 36 in the left-right direction in FIG. Slips with respect to the rail holding part 27, and the turntable 9 moves in the left-right direction in FIG. 6 (longitudinal direction of the straight rail 26).
[0027]
As shown in FIG. 7, an opening 37 is formed at the center of the turntable 9, and the first elevating shaft 14 shown in FIGS. 3 and 4 extends from the opening 37 to the turntable 9. The presser plate 8 is held at the lower end.
[0028]
As shown in FIGS. 3, 4, and 7, on the lower surface side of the turntable 9, cylinder devices 38 and 39 having rear end portions supported by the turntable 9 so as to be tiltable in the horizontal direction are provided. . The tip portions of the cylinder rods 40, 41 of the cylinder devices 38, 39 are flat Z-shaped that can be tilted in the horizontal direction around a support pin 42 suspended from the lower surface of the turntable 9, as shown in FIG. Are attached to the rear end portions of the two tilting arms 43 and 44, and a winding roller 11 and a pressing roller 12 are provided at the front end portions of the tilting arms 43 and 44, respectively, so as to be idled in the horizontal direction. Yes. Accordingly, the cylinder devices 38 and 39 are operated to move the cylinder rods 40 and 41 forward and backward, and the tilt arms 43 and 44 are tilted about the support pin 42, whereby the lid-equipped container 1 (see FIG. 4). The winding roller 11 and the pressing roller 12 can be moved back and forth. The winding roller 11 and the pressing roller 12 are offset in plane but are provided at the same height, and the lidded container 1 sandwiched between the processing table 4 and the pressing plate 8 (see FIG. 4). It will be moved forward and backward.
[0029]
Further, the winding roller 11 and the pressing roller 12 are located on one end side of the linear rail 26, and can be advanced and retracted toward the lidded container 1 by the horizontal movement of the turntable 9. ing.
[0030]
The winding roller 11 is a hollow roller whose inside is connected to a suction device (not shown), and a suction hole (not shown) is formed on the peripheral surface. By the suction force from this suction hole, The back surface of the front end portion of the adhesive tape 2 is sucked and held. Further, a cutter 45 for cutting the rear end portion of the adhesive tape 2 wound around the lid-equipped container 1 (see FIG. 4) is provided so as to be able to advance and retreat in the vicinity of the winding roller 11.
[0031]
The adhesive tape 2 is drawn out from the tape reel 10 shown in FIGS. 3 and 4, and this tape reel 10 is provided on the turntable 9 and is moved up, down, rotated, and moved together with the turntable 9. It has become.
[0032]
Next, the operation state of the above-described tape applicator A will be described.
[0033]
As shown in FIG. 3, when the lidded container 1 is conveyed directly below the presser plate 8, the elevating drive devices 13 and 23 are operated, and the first elevating shaft 14 and the second elevating shaft 24 are lowered. The presser plate 8 and the turntable 9 are lowered. The holding plate 8 is lowered until the container 1 with the lid is sandwiched between the processing table 4 and the turntable 9 has a winding roller 11 and a pressing roller 12 between the lid 1a and the main body 1b of the container 1 with the lid. It is lowered to the position facing the seam. The state in which the lowering of both has been completed is the state of FIG.
[0034]
The planar positional relationship between the container 1 with the lid immediately after completion of the lowering of the holding plate 8 and the turntable 9, the winding roller 11 and the pressing roller 12 is as shown in FIG. 8, and the winding roller 11 and the pressing roller 12 are Although it faces the side surface of the container 1 with a lid, it is in a separated state. Further, the back surface of the adhesive tape 2 is sucked and held by the winding roller 11.
[0035]
When the cylinder devices 38 and 39 are operated in the state of FIG. 8 and the cylinder rods 40 and 41 are retracted, the tips of the tilting arms 43 and 44 tilt to the side of the lidded container 1, and the winding roller 11 and the pressing roller 12. Advances toward the container 1 with the lid, and comes into contact with the joint of the container 1 with the lid, as shown in FIG. As a result, the tip of the adhesive tape 2 whose back surface is sucked and held by the winding roller 11 is stuck on the joint of the lidded container 1. Then, the suction of the winding roller 11 is stopped, and the rotary drive device 20 shown in FIGS. 3 and 4 is operated, and the turntable 9 is moved via the rotary drive shaft 21, the drive gear 19, the driven gear 18 and the rotary main shaft 17. When rotated, the winding roller 11 and the pressing roller 12 attached to the turntable 9 rotate around the lid 1 with the lid 1 held between the processing table 4 and the pressing plate 8. .
[0036]
The rotation is performed in a direction in which the winding roller 11 is at the head in the rotation direction (right rotation in FIG. 9). Further, as shown in FIG. 9, the adhesive tape 2 is hung on the winding roller 11 from the front side to the rear side in the circumferential direction of rotation of the container 1 with the lid, and the winding roller 11 contacts the container 1 with the lid. It is pulled out from the tape reel 10 (refer to FIG. 3 and FIG. 4) and continuously stuck to the lidded container 1 as it rotates in the contacted state. The pressure-sensitive adhesive tape 2 adhered to the lidded container 1 by the winding roller 11 is pressed against the lidded container 1 by the pressing roller 12 immediately after the winding roller 11 and firmly adhered.
[0037]
When the lid-equipped container 1 is circular in plan and is sandwiched between the processing table 4 and the presser plate 8 with the center thereof coincident with the center of the rotation main shaft 17 shown in FIGS. 3 and 4, the winding roller 11 If the pressing roller 12 is rotated on a certain circumference, the winding roller 11 and the pressing roller 12 are rotated while maintaining the contact between the winding roller 11 and the pressing roller 12 and the lidded container 1. Can do.
[0038]
However, for example, in the case where the lidded container 1 is rectangular as shown in the figure, from the center of the rotation main shaft 17 to the contact between the winding roller 11 and the lidded container 1 and the contact between the pressing roller 12 and the lidded container 1. The distance varies. This variation can be absorbed by, for example, using the cylinder devices 38 and 38 as air cylinder devices and pressing the winding roller 11 and the pressing roller 12 against the container 1 with the lid in a state where the winding roller 11 and the pressing roller 12 can be elastically advanced and retracted. The pressing roller 12 can be rotated while being in contact with the lidded container 1.
[0039]
Further, when the turntable 9 is rotated at a constant speed (a constant number of rotations per unit time), the winding speed of the adhesive tape 2 varies due to the above variation. Specifically, the winding speed of the adhesive tape 2 at the corner shown in FIG. 10 is higher than the winding speed of the adhesive tape 2 at the straight line shown in FIG. If this unevenness in speed becomes large, wrinkles are likely to occur in the wound adhesive tape 2, and therefore it is preferable to horizontally move the turntable 9 to suppress fluctuations in the winding speed of the adhesive tape 2.
[0040]
More specifically, the winding speed of the adhesive tape 2 at the corner portion is increased because the position of the contact point between the winding roller 11 and the lid-equipped container 1 is greater in the corner portion than the linear portion of the lid-equipped container 1. This occurs because the distance from the center (the center of rotation of the turntable 9) increases. Accordingly, as the winding roller 11 approaches the corner portion of the lidded container 1, the turntable 9 is horizontally moved in the direction in which the winding roller 11 moves forward so that the winding roller 11 comes close to the center of the rotating spindle 17, and the winding roller 11 is covered by the lid. As the turntable 9 moves horizontally in the direction in which the winding roller 11 moves backward as it moves away from the corner portion of the attached container 1 and the winding roller 11 moves away from the center of the rotating main shaft 17, the change in the winding speed of the adhesive tape 2 is changed. Can be absorbed.
[0041]
The horizontal movement of the turntable 9 is performed by moving the ring rail 29 up and down through the third lifting shaft 25 and moving the vertical rack 31 up and down by the lifting drive device 28 as described above. The operation of the device 28 can be easily performed by computer control according to the planar shape of the lidded container 1.
[0042]
As described above, after the winding roller 11 is rotated around the circumference of the lidded container 1 over one turn, the winding roller 11 is moved backward to be separated from the lidded container 1 as shown in FIG. Since the adhesive tape 2 is lifted and stretched between the lidded container 1 and the winding roller 11 by this retreat, the cutter 45 is moved forward and the adhesive tape 2 is cut in the lifted area. When the adhesive tape 2 is cut by the cutter 45, suction from the suction hole of the winding roller 11 is performed, and the front end portion of the cut adhesive tape 2 on the winding roller 11 side is sucked and held by the winding roller 11 to prepare for the next winding. . The rear end of the lidded container 1 side is pressed and stuck by a pressing roller 12 that is rotating in contact with the lidded container 1. After the pressing roller 12 is rotated to a position exceeding the rear end portion of the adhesive tape 2 on the side of the lidded container 1 cut by the cutter 45, the pressing roller 12 is also moved backward to be separated from the lidded container 1. The winding of the adhesive tape 1 is finished.
[0043]
In this example, the winding roller 11 and the pressing roller 12 are used, but the rear end of the cut adhesive tape 2 on the side of the lidded container 1 is left in a state where it is not firmly attached, and the wound adhesive is wound. When used as a clue when the tape 2 is peeled off, the pressing roller 12 can be omitted.
[0044]
The lidded container 1 around which the adhesive tape 2 is wound by the tape applying apparatus A and the seam is sealed is transferred to the traverser apparatus B by the conveying apparatus 3 shown in FIGS.
[0045]
(2) Traverser device B
FIG. 12 is an enlarged perspective view of the traverser device B. FIG.
[0046]
As shown in FIGS. 1, 2, and 12, the traverser device B includes a portal frame 46 provided across the transport device 3 and two transport arms arranged in parallel in the horizontal direction. It has become. The portal frame 46 can be moved back and forth in the transport direction of the transport device 3, and the two transport arms 5 are provided on the portal frame 46 so as to be able to move up and down and in the facing direction.
[0047]
The lidded container 1 around which the adhesive tape 2 is wound by the tape applicator A is diverted through the portal frame 46 and transferred between the bases of the transfer arm 5, and the transfer arm 5 is lowered and advanced in the opposite direction. Thus, it is sandwiched between the bases of the transfer arm 5. At the same time, the lidded container 1 on which the gas replacement on the processing table 6 of the gas replacement device C has been completed is sandwiched between the leading ends of the transfer arm 5.
[0048]
The transport arm 5 that sandwiches the container 1 with the lid between the base and the tip is lifted while sandwiching the container 1 with the lid, and the portal frame 46 advances in the direction of the gas replacement device C and the lid sandwiched between the bases. When the attached container 1 moves to the processing table 6 of the gas replacement apparatus C and the container 1 with the lid sandwiched by the tip part moves to the processing table 7 of the sealed secondary processing apparatus D, the attached container 1 is lowered and separated. Each lidded container 1 is placed on each of the processing tables 6 and 7.
[0049]
(3) Gas displacement device C
FIG. 13 is an enlarged partial cross-sectional view of the gas replacement device C showing the state before the labeling device 51 and the chamber 52 are lowered, and FIG. 14 is a diagram of the gas replacement device C showing the state where the labeling device 51 and the chamber 52 are lowered. FIG. 15 is an explanatory view of the peeling mechanism of the label 66, (a) is an explanatory view of the state where the suction plate 59 sucks the label 66, and (b) is the label 66 peeled from the release paper tape 65. FIG. 16 is a perspective view of the lidded container 1 sent to the gas replacement device C, FIG. 17 is a bottom view of the chamber 52, and FIG. 18 is a longitudinal section of the chamber 52 shown in FIG. 19 and FIG. 19 are bottom views of the chamber 52 with the spacer 68 changed, and FIG. 20 is a bottom view of the chamber 52 with the spacer 68 further changed.
[0050]
As shown in FIG. 13 and FIG. 14, the gas replacement device C is provided on the processing table 7 provided on the guide rail 47, the support frame 48 raised from the processing table 6, and the upper part of the support frame 48. The lifting / lowering driving device 49 and the labeling device 51 suspended above the processing table 6 by the lifting / lowering shaft 50 connected to the lifting / lowering driving device 49 are provided.
[0051]
The guide rail 47 extends in a direction perpendicular to the conveying direction by the traverser device B, and the processing table 6 is movable along the guide rail 47 and has a lid that is carried onto the processing table 6 by the traverser device B. The placement position of the container 1 can be adjusted in a direction perpendicular to the conveyance direction by the traverser device B (left and right). Further, the adjustment of the placement position in the transport direction (front-rear) by the traverser apparatus B can be adjusted by the amount of movement of the portal frame 46 (see FIG. 12) of the traverser apparatus B.
[0052]
The labeling device 51 is moved up and down integrally with the chamber 52 provided at the lower end by extending and retracting the lifting shaft 50 by the operation of the lifting drive device 49.
[0053]
The chamber 52 has a downward box shape having a ceiling plate 53 and a side plate 54, and is placed on the lidded container 1 placed on the processing table 6, and accommodates the lidded container 1 between the support table 7. The sealed space can be formed. The chamber 52 is connected to an exhaust device and a replacement gas supply source (not shown), and exhausts the sealed space formed between the chamber 52 and the support table 7 to the sealed space. Replacement gas can be supplied.
[0054]
The ceiling plate 53 of the chamber 52 is provided with a through hole 57 that is opened and closed by sliding the shutter 56 by the cylinder device 55. Above the through hole 57, the suction plate 59 that advances and retreats by the cylinder device 58. Is provided. The cylinder device 58 provided with the suction plate 59 can be moved up and down by the lift drive device 60, and the rotation drive device 61 positions the suction plate 59 sideways (see FIG. 13) and the position where the suction plate 59 faces downward. (See FIG. 14).
[0055]
As shown in FIGS. 13 and 15, a wedge-shaped guide plate 62 is provided downward in front of the lateral position of the suction plate 59, and above the label supply reel 63 and release paper tape take-up reel. 64 is provided. The release paper tape 65 drawn out from the label supply reel 63 is wound around the release paper tape take-up reel 64 through the front end portion of the guide plate 62 positioned below. The release paper tape 65 sent out from the label supply reel 63 is provided with circular labels 66 at regular intervals as shown in FIG. The label 66 has a diameter larger than a vent hole 67 of the lidded container 1 described later, and can be attached to the lidded container 1 so as to cover the vent hole 67. The guide plate 62 is elastically supported so as to be slidable up and down by the tension of the release paper tape 65.
[0056]
As shown in FIG. 16, the lidded container 1 sent to the gas replacement device C includes a lid 1a having a circular ventilation hole 67 formed on the upper surface, while the lid 1a and the main body 1b are disposed. The seam is sealed with an adhesive tape 2 wound continuously.
[0057]
As shown in FIGS. 17 and 18, the chamber 52 is larger than the lidded container 1, and a detachable spacer 68 is provided in the surplus space to fill it. The spacer 68 has a plate shape and is detachably attached to the inner side of the side plate 54 by superimposing one or a plurality of spacers. In the illustrated spacer 68, an inverted trapezoidal protrusion 69 whose top width is wider than the width of the base portion is inserted into the trapezoidal groove 70 from the side and the both are meshed with each other. Is attached.
[0058]
The size of the accommodation space of the lidded container 1 in the chamber 52 is adjusted by attaching and detaching the spacer 68, and the surplus space is filled with the spacer 68 according to the size of the lidded container 1 to be processed, which will be described later. Energy and time required for exhausting the chamber 52 and the amount of replacement gas used can be reduced.
[0059]
In FIG. 17 and FIG. 18, three spacers 68 are overlapped and attached to the inside of the two-way side plates 54 that are orthogonal to each other, but one is attached to the inside of the one-, three-, or four-way side plates 54. Two, four or more sheets can be attached. Further, as is apparent from the comparison between FIG. 17 and FIG. 19, by adjusting the attachment position and the number of attachments of the spacers 68, the position of the lidded container 1 where the through holes 57 formed in the ceiling plate 53 of the chamber 52 face each other. Can be changed. As will be described later, the through hole 57 faces the vent hole 67 of the lidded container 1, and the position of the lidded container 1 that the through hole 57 faces changes, so the vent hole 67 of the lidded container 1. , And the degree of freedom in designing the lidded container 1 can be expanded. Furthermore, by adjusting the attachment position and the number of attachments of the spacer 68, as shown in FIG. 20, the lidded containers 1 having different sizes can be handled.
[0060]
The alignment between the chamber 52 and the lidded container 1 due to the change in the mounting position and the number of the spacers 68 is performed by moving the entire gas replacement device C along the processing table 6 before and after the transfer of the lidded container 1 by the traverser device B. To adjust the position by moving the labeling device 51 and the chamber 52 to the front, rear, left and right before or after the transfer of the lidded container 1, and to move the processing table 6 to the front, rear, left and right after the transfer of the lidded container 1. To adjust the position by changing the position of the transport arm 5 of the traverser apparatus B shown in FIG. 12 and the amount of advance, and a combination thereof.
[0061]
Next, the operating state of the gas replacement device C will be described.
[0062]
First, as shown in FIG. 13, the lidded container 1 is transported onto the processing table 6 with the labeling device 51 and the chamber 52 raised.
[0063]
When the container 1 with the lid is placed at a predetermined position on the processing table 6, the labeling device 51 and the chamber 52 are lowered by the elevating drive device 49, and the container 1 with the lid is accommodated in the chamber 52 and the processing is performed. A sealed space in which the lidded container 1 is stored is formed between the table 6 and the chamber 52. At this time, the shutter 56 is in a closed state.
[0064]
The air in the sealed space formed between the processing table 6 and the chamber 52 is exhausted by the exhaust device (not shown) and sufficiently exhausted into the lidded container 1 through the vent hole 67 (see FIG. 16). . Next, the exhausted sealed space is filled with a replacement gas such as nitrogen, and the inside of the lidded container 1 is filled with the replacement gas.
[0065]
On the other hand, the cylinder device 58 is operated to advance the suction plate 59 as shown in FIG. 15A and press the label plate 66 on the guide plate 62 to suck it. In the state of FIG. 15A, the label supply reel 63 and the release paper tape take-up reel 64 are in a stopped state.
[0066]
After the label 66 is adsorbed to the adsorption plate 59 as described above, when only the release paper tape take-up reel 64 is rotated in the take-up direction, as shown in FIG. A tension is applied, and the guide plate 62 is elastically pushed upward. As a result, the release paper tape 65 is peeled from the label 66 adsorbed on the adsorption plate 59. Then, after the release paper tape 65 is peeled off, the suction plate 59 sucking the label 66 is returned to the original retracted position by the operation of the cylinder device 58, and is in the same state as FIG.
[0067]
After one label is transferred to the suction plate 59 as described above, the rotation of the release paper tape take-up reel 64 is stopped, and only the label supply reel 63 is rotated in the delivery direction of the release paper tape 65. Then, the tension of the release paper tape 65 is weakened, the guide plate 62 is elastically returned to the original position, and the release paper tape 65 corresponding to one pitch of the label 66 attached to the release paper tape 65 at regular intervals. Is sent out from the label supply reel 63 to return to the original state.
[0068]
As shown in FIG. 14, the suction plate 59 from which the label 66 has been transferred as described above is turned downward by the rotation of the cylinder device 58 by the rotation driving device 61, and the through hole provided in the ceiling plate 53 of the chamber 52. 57. In this state, the cylinder device 58 is lowered by the elevating drive device 60, pressed against the connecting wall 72 protruding around the through hole 57, and the suction plate 59 is positioned in the chamber front chamber 73 surrounded by the connecting wall 72. Let Next, the replacement gas is preferably flushed into the chamber front chamber 73 to make the chamber front chamber 73 a replacement gas atmosphere, and then the cylinder device 55 is operated to retract the shutter 56 to open the through hole 57. Then, the cylinder device 58 is operated to advance the suction plate 59, and the held label 66 (see FIG. 15) is attached so as to cover the ventilation hole 67 (see FIG. 16) of the lidded container 1. Thereby, the container 1 with a lid | cover is sealed in the state by which the inside was substituted by substitution gas.
[0069]
After the label 66 is attached, the suction plate 59 is retracted and the cylinder device 58 is raised and returned to the original raised position, and the suction plate 59 is turned sideways toward the guide plate 62. Rotate until Further, the shutter 56 is closed, the labeling device 51 and the chamber 52 are raised and returned to the raised position in FIG. 13 to prepare for the next cycle.
[0070]
As described above, the container with lid 1 in which the vent hole 67 (see FIG. 16) is covered with the label 66 (see FIG. 15) and the inside replaced with the replacement gas is hermetically sealed is transferred by the traverser device B described above. To the sealed secondary processing apparatus D.
[0071]
(4) Sealed secondary processing device D
21 is an enlarged view of the sealed secondary processing apparatus D, FIG. 22 is an enlarged view of the sealed secondary processing apparatus D showing the state where the label sealing unit 74 is lowered, and FIG. 23 is sent to the sealed secondary processing apparatus D. FIG. 24 is a plan view of the tape sealing rollers 84a and 84b in the tape sealing unit 75, FIG. 25 is a side view of the tape sealing rollers 84a and 84b of FIG. 24, and FIG. 27 is an explanatory plan view of the tape sealing roller 84, and FIG. 27 is an explanatory side view of the tape sealing roller of FIG.
[0072]
As shown in FIGS. 21 and 22, the sealed secondary processing apparatus D includes a label sealing unit 74 and a tape sealing unit 75.
[0073]
The label sealing unit 74 is provided above the processing table 7. The label sealing unit 74 is held by a vertical rail 77 attached to the support frame 76, and can be moved up and down along the vertical rail 77 by an elevating drive device 78, and includes a pressing plate 79 at the lower end.
[0074]
The presser plate 79 sandwiches the lidded container 1 on the processing table 7 with the processing table 7 when the label rubbing unit 74 is lowered, and has a through-opening window 80. As shown in FIG. 23, the lidded container 1 transferred from the gas replacement device C to the sealed secondary processing device D by the traverse device B has a vent hole 67 covered with a label 66. The air hole 67 and the label 67 are placed on the processing table 7 so that the air hole 67 and the label 67 are located immediately below the window 80 of the presser plate 79.
[0075]
Two label sealing rods 81 each having a rounded tip slightly projecting downward from the window 80 are suspended from the upper side of the window 80 of the presser plate 79 so that they can be pushed upward elastically. The two label sealing rods 81 are rubbed against the periphery of the label 66 attached to the lidded container 1 by the gas displacement device C, and the label 66 is firmly attached around the vent hole 67 to be in close contact therewith. Therefore, the upper end portion is held in parallel with the holding plate 82 with a gap smaller than the diameter of the label 66 and larger than the diameter of the vent hole 67.
[0076]
A rotation driving device 83 is provided above the holding plate 82. The holding plate 82 is attached to the rotation driving device 83 and is horizontally centered around the center between the two label sealing rods 81 held in parallel. It is intended to be rotated in the direction.
[0077]
On the other hand, the tape sealing unit 75 is provided on the side of the processing table 7 and is directed from the side of the lidded container 1 placed on the processing table 7 toward the adhesive tape 2 wound by the tape applicator A. The tape sealing rollers 84a and 84b are moved forward and backward. The tape sealing rollers 84a and 84b are rotatable in the horizontal direction around the vertical axis and are provided vertically. The upper and lower tape sealing rollers 84a and 84b are elastically brought into contact with the adhesive tape 2 wound around the lidded container 1 when moving forward. For example, the cylinder devices 38 and 39 shown in FIG. The advancing / retreating mechanism is similar to the advancing / retreating mechanism of the winding roller 11 and the pressing roller 12 of the tape applicator A, which includes the rods 40, 41, the support pins 42, and the tilting arms 43, 44.
[0078]
The upper and lower tape sealing rollers 84a and 84b are in contact with the vicinity of the winding start end 2 ′ of the adhesive tape 2 as clearly shown in FIG. 24 and FIG. 2 is adjusted so that the tape sealing rollers 84a and 84b and the vicinity of the winding start end 2 ′ of the adhesive tape 2 face each other in the sealed secondary processing apparatus C. The upper and lower tape sealing rollers 84a and 84b can be reciprocated in the longitudinal direction of the adhesive tape 2 with the advance / retreat mechanism. Further, the upper and lower tape sealing rollers 84a and 84b have their rotational axes shifted in the moving direction, and are in contact with both side edges (upper edge and lower edge) of the adhesive tape 2, respectively. ing.
[0079]
Next, the operating state of the sealed secondary processing apparatus D will be described.
[0080]
First, as shown in FIG. 21, the lidded container 1 is conveyed onto the processing table 7 with the label sealing unit 74 raised. At this time, the tape sealing rollers 84a and 84b are in the retracted position.
[0081]
When the container 1 with the lid is placed at a predetermined position on the processing table 7, the label sealing unit 74 is lowered by the operation of the elevating drive device 78, and the container 1 with the lid is placed between the press plate 79 and the processing table 7. Press down. At this time, the label 67 covering the vent hole 66 provided in the lid 1a of the lidded container 1 is positioned immediately below the window 80 of the press plate 79, and the tip of the label sealing rod 81 is elastic at the peripheral edge of the label 67. It will be in the state of pressure contact. The winding start end 2 ′ of the adhesive tape 2 wound along the seam between the lid 1 a and the main body 1 b of the lidded container 1 is in a position facing the tape sealing rollers 84 a and 84 b of the tape sealing unit 75.
[0082]
Next, when the rotation driving device 83 is operated and the label sealing rod 81 is rotated in the horizontal direction, the label sealing rod 81 rotates to rub the peripheral portion of the label 67 and firmly attach the label 67 to the peripheral portion of the vent hole 67. To complete the sealing. At the same time, the tape sealing rollers 84a and 84b move forward and are horizontally reciprocated in the longitudinal direction of the adhesive tape 2 in a state where the tape sealing rollers 84a and 84b are elastically pressed onto the vicinity of the winding start end 2 'of the adhesive tape 2, The side edge portion of the winding is reciprocated and pressed across the winding start end 2 '. As a result, even if there is a gap between the pressure-sensitive adhesive tape 2 and the lidded container 1 at the stepped portion of the winding start end 2 ′, the pressure-sensitive adhesive of the pressure-sensitive adhesive tape 2 can be flowed and crushed, and the sealing is complete It will be a thing.
[0083]
By the way, although the tape sealing rollers 84a and 84b can be provided at positions aligned vertically, distortion generated in the adhesive tape 2 becomes difficult to escape when the adhesive tape 2 is pressed and leveled. Is easier to approach. For this reason, it is preferable that the tape contact rollers 84a and 84b are provided so as to be shifted back and forth in the horizontal reciprocation direction so that the distortion of the adhesive tape 2 can be easily escaped.
[0084]
Further, as shown in FIGS. 26 and 27, a tape sealing roller 84 having an axial length that can contact the entire width of the adhesive tape 2 is used, and one tape sealing roller 84 is used as described above. It is also possible to perform the same sealing process.
[0085]
However, the joint edge between the lid 1a and the main body 1b of the container 1 with the lid is often slightly squeezed outward, and it is sufficient that the adhesive tape 2 cannot be pressed uniformly. There is a risk that it will be impossible to seal properly. Therefore, the upper and lower tape sealing rollers 84a and 84b shown in FIGS. 24 and 25 can be used to press the tape sealing rollers 84a and 84b while avoiding the joint edge between the lid 1a and the main body 1b. It is preferable to do so.
[0086]
In both cases where the two tape sealing rollers 84a and 84b are used and one tape sealing roller 84, the adhesive tape 2 is not pressed down as described above, but a liquid sealant is applied. Sealing can also be achieved. For example, oil, anaerobic curing agent or the like is used as the liquid sealant, and when this liquid sealant is applied to the vicinity of the winding start end 2 ′ of the adhesive tape 2 via the tape sealing rollers 84 a and 84 b or 84, winding starts. Even if there is a gap between the adhesive tape 2 and the lidded container 1 at the stepped portion of the end 2 ′, the gap can be filled with a liquid sealant by capillary action, thereby obtaining a sufficient sealing state. be able to.
[0087]
Further, the tape sealing rollers 84a and 84b or 84 may be passed only once on the winding start end 2 ′ of the adhesive tape 2, but by reciprocating so as to improve the sealing state with certainty. It is preferable to pass over the winding start end 2 ′ of the adhesive tape 2 multiple times.
[0088]
If the tape applying apparatus A according to the present invention constitutes a gas pack packaging apparatus in combination with the traverser apparatus B, the gas replacement apparatus C and the sealing secondary processing apparatus D as described above, the internal air is replaced with the replacement gas. A substituted gas pack package can be easily obtained. This gas pack packaging can improve the storage stability of food, and for example, when used as a lunch box packaging, the storage period can be extended.
[0089]
The tape applicator A according to the present invention can be used not only as the gas pack packaging device but also as a sealing device with a simple adhesive tape 2. For example, by using the container 1 with a lid without the air holes 67, the packaged object that dislikes moisture is stored together with the desiccant, or the packaged object that is susceptible to oxygen deterioration is stored together with the deoxidizer, and the tape applying device according to the present invention If the seam between the lid 1a and the main body 1b is sealed with A, a packaging body excellent in moisture and oxygen barrier properties can be easily obtained. In this case, the tape applicator A according to the present invention may be used alone, but if the sealed secondary processing device D is used in combination, the sealing performance of the resulting package can be further improved. When the tape applying apparatus A according to the present invention and the sealed secondary processing apparatus D are used in combination, a traverser apparatus B can be interposed between the two as required.
[0090]
【The invention's effect】
The present invention is as described above, and for a lid with a lid in which a joint between the main body and the lid is formed on the circumferential side, an adhesive tape is continuously attached and sealed along the joint. Since it can be stopped, a highly sealed package can be easily obtained.
[Brief description of the drawings]
FIG. 1 is a schematic view of a gas pack packaging apparatus using a tape applicator according to the present invention.
FIG. 2 is a diagram showing a state in which a container with a lid is conveyed by the traverser device shown in FIG.
FIG. 3 is an enlarged view of a tape applying apparatus according to the present invention.
FIG. 4 is an enlarged view of the tape applicator with the presser plate and the turntable lowered.
FIG. 5 is an enlarged view of a portion where the turntable is attached to the rotation main shaft.
FIG. 6 is an explanatory diagram of a ring rail and a pinion rack mechanism for horizontally moving the turntable.
FIG. 7 is a bottom view of the turntable.
FIG. 8 is an explanatory diagram of a mechanism around a winding roller and a pressing roller, and is a plan view showing a state before the start of winding of the adhesive tape.
FIG. 9 is an explanatory view of a mechanism around the winding roller and the pressing roller, and is a plan view showing a state immediately after the start of winding of the adhesive tape.
FIG. 10 is an explanatory view of a mechanism around a winding roller and a pressing roller, and is a plan view showing a state where an adhesive tape is wound around a corner portion of a lidded container.
FIG. 11 is an explanatory view of a mechanism around a winding roller and a pressing roller, and is a plan view showing a state immediately before the end of winding of the adhesive tape.
FIG. 12 is an enlarged perspective view of the traverser device.
FIG. 13 is an enlarged partial cross-sectional view of the gas replacement device showing a state before the labeling device and the chamber are lowered.
FIG. 14 is an enlarged partial cross-sectional view of the gas replacement device showing a state where the labeling device and the chamber are lowered.
FIGS. 15A and 15B are explanatory views of a label peeling mechanism, where FIG. 15A is an explanatory view showing a state where a suction plate sucks a label, and FIG. 15B is an explanatory view showing a stage in the middle of peeling a label from a release paper tape; .
FIG. 16 is a perspective view of a container with a lid sent to the gas replacement device.
FIG. 17 is a bottom view of the chamber.
18 is a longitudinal sectional view of the chamber shown in FIG.
FIG. 19 is a bottom view of the chamber with the spacers changed.
FIG. 20 is a bottom view of a chamber in which spacers are further rearranged.
FIG. 21 is an enlarged view of the sealed secondary processing apparatus.
FIG. 22 is an enlarged view of the sealed secondary processing apparatus with the label sealing unit 74 lowered.
FIG. 23 is a perspective view of a container with a lid sent to the sealed secondary processing apparatus.
FIG. 24 is a plan view of a tape sealing roller in the tape sealing unit.
25 is an explanatory side view of the tape sealing roller of FIG. 24. FIG.
FIG. 26 is an explanatory plan view of another tape sealing roller.
27 is an explanatory side view of the tape sealing roller of FIG. 26. FIG.
[Explanation of symbols]
A tape applicator
B Traverse device
C Gas replacement device
D Sealed secondary processing equipment
1 Container with lid
1a Lid
1b Body
2 Adhesive tape
2 'Winding start of adhesive tape
3 Transport device
4 processing table
5 Transfer arm
6 processing table
7 Processing table
8 Presser plate
9 Turntable
10 Tape reel
11 Winding roller
12 Pressing roller
13 Lifting drive
14 First lifting shaft
15 Support frame
16 Support shaft
17 Spindle
18 Driven gear
19 Drive gear
20 Rotation drive
21 Rotary drive shaft
22 Intermediate table
23 Lifting drive
24 Second lifting shaft
25 Third lifting shaft
26 Straight rail
27 Rail holder
28 Lifting drive
29 Ring rail
30 Traveling roller
31 vertical rack
32 gearbox
33 First pinion
34 Transmission gear
35 Second Pinion
36 horizontal racks
37 opening
38 Cylinder device
39 Cylinder device
40 Cylinder rod
41 Cylinder rod
42 Support pin
43 Tilting arm
44 Tilt arm
45 cutter
46 portal frame
47 Guide rail
48 Support frame
49 Lifting drive
50 Lifting shaft
51 Labeling device
52 chambers
53 Ceiling board
54 Side plate
55 Cylinder device
56 Shutter
57 Through hole
58 Cylinder device
59 Adsorption plate
60 Lifting drive
61 Rotation drive
62 Information board
63 Label supply reel
64 Release paper tape take-up reel
65 Release paper tape
66 Label
67 Vent
68 Spacer
69 protrusion
70 groove
71 Mounting pin
72 connecting wall
73 Chamber front
74 Label sealing unit
75 Tape sealing unit
76 Support frame
77 Vertical rail
78 Lifting drive
79 Presser plate
80 windows
81 Label sealing stick
82 Holding plate
83 Rotation drive
84 Tape sealing roller
84a Tape sealing roller
84b Tape sealing roller

Claims (5)

A tape applicator for adhering an adhesive tape along the seam of the lidded container in which the seam between the main body and the lid is formed on the circumferential side,
A presser plate that can be raised and lowered with respect to the processing table on which the container with a lid is placed, and clamps the container with the lid between the processing table when lowered,
It is possible to hold the front end of the adhesive tape and to advance and retreat with respect to the lidded container sandwiched between the processing table and the presser plate. Sticking on the seam, rotating the circumference of the lidded container more than one turn while pulling out the adhesive tape on the seam, in contact with the lidded container, retreating and separating from the lidded container A winding roller,
A tape reel that holds the adhesive tape so that it can be pulled out as the winding roller rotates around the lidded container;
A tape applying apparatus comprising: a cutter for cutting an adhesive tape in a region stretched between a container with a lid and a winding roller by separating the winding roller from the container with a lid. The lidded container sandwiched between the processing table and the presser plate can be advanced and retracted, moved forward and brought into contact with the lidded container, and around the lidded container together with the winding roller in contact with the lidded container. Rotate, press the adhesive tape stuck on the seam with the winding roller against the lidded container, and rotate it to a position beyond the rear end of the lidded container side of the adhesive tape cut with the cutter The tape applicator according to claim 1, further comprising a pressing roller that moves backward and is separated from the lidded container. The tape applicator according to claim 1 or 2, wherein the winding roller has a suction hole for sucking and holding the tip of the adhesive tape on the peripheral surface. The winding roller and the pressing roller are attached to a turntable that can rotate in a horizontal direction, and the turntable can rotate around the lidded container, while the turntable includes a winding roller The tape applicator according to any one of claims 1 to 3, wherein the pressing roller is horizontally movable in a direction in which the pressing roller is advanced and retracted with respect to the lidded container. When the winding roller and the pressing roller rotate around the lidded container by the rotation of the turntable, the horizontal movement of the turntable changes the distance from the rotation center of the turntable to the contact point of the winding roller and the lidded container. The tape applicator according to claim 4, wherein the tape applicator is controlled in a direction to absorb fluctuations in the winding speed of the adhesive tape due to the above.

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