JPS61127426A - Sealing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sealing device, and relates to a sealing device that seals a gap between the edge of a lid plate of a packaging box such as a cardboard box and the edge of an end face adjacent to the lid plate. This relates to a structure for sealing with adhesive tape.

[Conventional technology]

In the conventional sealing device of this kind, as shown in FIG. 17, the sealing structure consists of a protruding adhesive tape 3 attached to the end of the lid plate 2 of the packaging box 1 with approximately half of the width thereof protruding. Part 4
A configuration was adopted in which the tape was bent using a tape presser 5 and then affixed to the end of the packaging box 1.

[Problem that the invention seeks to solve]

However, in the conventional sealing device, as shown in FIG. 11, the packaging box 1 to which the adhesive tape 3 that is transferred on the conveyor is pasted so as to protrude in the width direction is temporarily stopped, and the packaging box 1 is fixed by the fixing device 6. In this state, the tape presser 5 is operated and the protrusion 4 of the adhesive tape 3 is bent, so that the packaging boxes cannot be sealed continuously, which poses a problem that impedes the efficiency of the sealing work.

The present invention has been made in view of the above-mentioned problems, and it is possible to continuously bend the protruding part of the adhesive tape attached with a part of it protruding in the width direction while moving the packaging box in the unloading direction.
The present invention provides a sealing device that can improve the efficiency of sealing work.

[Means for solving problems]

The sealing device of the present invention is pivotally supported along a sealing part such as a lid plate of a moving object to be sealed such as a cardboard packaging box, and a part of the object in the width direction protrudes along the edge of one side of the object to be sealed. A rotary adhesive body is provided for bending and press-bonding the protruding portion of the adhesive tape adhered to the adjacent end face of the sealed body, and the rotary adhesive body has an elastic contact portion on the circumferential surface for bending the adhesive tape, and It is characterized in that it is pivoted so as to be tilted in the bending direction of the adhesive tape along the plane and toward the direction in which the sealed body is carried out.

[Effect]

The sealing device of the present invention includes a sealing portion of an object to be sealed such as a packaging box,
For example, rotational adhesion in which a part of the adhesive tape in the width direction is stuck to the end of the cover plate so as to protrude and is moved by a conveying means, and the sealed body is positioned on the moving surface of the sealed body. When it reaches the body, the elastic contact part of the rotating adhesive body, which is rotated in the bending direction of the adhesive tape as the sealed body moves, sequentially bends the protruding parts of the adhesive tape. It is attached to the end face of the object to be sealed to seal the sealed portion of the object to be sealed.

〔Example〕

The configuration of an embodiment of the present invention will be described with reference to the drawings.

In Fig. 3, reference numeral 11 denotes a sealed object such as a packaging box made of corrugated paper or the like, and the opening edges on both opposing sides of the upper and lower opening surfaces have lids whose leading edges are joined to each other at the center. Plates 12.12 are provided so as to be openable and closable, and the joints at the leading edges of the cover plates 12.12 are sealed with adhesive tape 14 as the previous sealing part 13, and then both cover plates are sealed as shown in FIG. Adhesive tape 14 is pasted across both ends of the opening edge of the object to be sealed 11 and both end surfaces 11a of both cover plates 12.12, with both ends of 12.12 serving as sealing parts 15.15.

Next, the sealing device of the sealing section 15 shown in FIG. 4 will be explained based on FIGS. 5 to 7 of the drawings.

The sealing line 16 and the sealing line 17 in the previous stage are disposed in an oval shape in a plane with a direction changing section 18 interposed therebetween.

This sealing line 17 includes a plurality of wheel conveyors 20 that are installed in parallel to the frame 19 from the carry-in side to the carry-out side on the side of the direction changing section 18, and a pair of wheel conveyors 20 that are arranged in parallel inside the wheel conveyor 20. A drive shaft 2 supported by a machine frame 19
2 and a rotating shaft 23, respectively, and the drive shaft 22 is rotated by an electric motor (25).

A pushing piece 26 for pushing the sealed object 11 on the wheel conveyor 20 is attached to the conveying chain 21. Further, a guide body 27 for guiding the sealed object 11 is provided above the outer side of the conveyance chain 21 so that the interval can be freely adjusted.

On the unloading side of this machine frame 19, the protruding portions 14a of the adhesive tape 14, which is attached to both ends of the upper and lower η plates 12.12 of the sealed body 11 with approximately half of the width thereof protruding, are bent and attached. A final stage sealing mechanism 28 is provided. Adhesive tapes 14 are placed on both ends of the upper and lower cover plates 12 and 12 of the object to be sealed 11 on the sealing line 11 located on the loading side of the opening sealing mechanism 28.
Pre-processing sealing mechanism 2 that sticks with a part of it protruding in the width direction
9 are arranged. The upper and lower lid plates 1 of this sealed body 11
2. A seal I in which the adhesive tape 14, which is stuck to both ends of 12 with approximately half of it in the width direction protruding, is stuck to the top and bottom of the end face of the object to be sealed 11, respectively! The sealing mechanisms 28 are provided at the top and bottom of both sides of the machine frame 19, and the final stage sealing mechanisms 28 on the left, right, top and bottom are axially inclined in a direction in which they approach each other in the direction of carrying out the sealed object 11, and the sealing mechanisms 28 are attached to the machine frame. It is composed of a pair of upper and lower rotary adhesive bodies 31 that are pivotally supported inside a side plate 30 of No. 19 along the moving direction of the sealed body 11. Each rotating adhesive body 3
1 is composed of a brush or the like, as shown in FIG. 1, and has an elastic contact part 32 like brush bristles that bends a protrusion 14a protruding from the end of the sealed body 11 of the adhesive tape 14. , each rotary adhesive body 31 is attached to an adhesive tape 14.
is rotated in a direction in which it is bent toward the end surface 11a of the sealed body 11. And each rotating adhesive body 3
1 is an electric motor 3 attached to the outside of both side plates 3o of the machine frame 19.
3 via a belt 34.

The pretreatment sealing mechanism 29 is provided on the top, bottom, left and right,
The upper, lower, left, and right sealing mechanisms 29 are constructed symmetrically, and the upper and lower sealing mechanisms 29 are provided so that their vertical positions can be adjusted according to the size of the object to be sealed 11.

As shown in FIG. 8, each pretreatment embedding IM 1 structure 29 has an adhesion arm 36 whose base is rotatably supported on the machine frame 19 by a shaft 35. A sticking roller 31 is rotatably supported at the tip of the sticking arm 36, and this sticking roller 37 is rotated by the turning of the sticking arm 36 to rotate the wheel conveyor 2.
The sealing body 11 is moved forward and backward on the moving surface of the sealing part 15, which moves on the surface of the sealing body 11. And this adhesive arm 36
A guide roller 38 for the adhesive tape 14 is rotatably attached to the machine frame 19, located near the sticking arm 36, and a guide roller 39 is rotatably supported on the large frame 19, located near the sticking arm 36. Furthermore, a tape holder roller 41 is rotatably supported on a projecting piece 40 protruding from the pasting arm 36 in close proximity to the pasting roller 37, and this guide roller 3
The peripheral surfaces of the roller 41 and the tape receiver 9 are knurled so that the adhesive tape 14 can be easily peeled off. The adhesive tape 14 is guided by the guide rollers 38 and 39 and the tape receiver roller 41, and is guided to the position of the sticking roller 37. Further, a rod 43 that is moved back and forth by a piston provided in an air cylinder or the like is pivotally attached to a protrusion 42 that protrudes from the adhesion arm 36.

The pasting arms 36 of each of the upper, lower, left and right sealing mechanisms 29
When the adhesive tape 14 is advanced to the moving surface of the sealed body 11, approximately 1/2 of the adhesive tape 14 in the width direction is brought into pressure contact with the sealing portions 15 at both ends of the upper and lower surfaces of the sealed body 11.

Further, the base of a cutter arm 44 is rotatably supported on the machine frame 19 by a shaft 45 in the vicinity of the pasting arm 36, and the tip side of the cutter arm 44 is bent in a substantially orthogonal shape. A cutter 46 for cutting the adhesive tape 14 is attached to the tip of the cutter arm 44, and the cutter 46 cuts at an angle to the tape 14 so as to easily cut the tape 14. It has become. Also, a protrusion 47 protruding from this cutter arm 44
A piston 48, which is moved forward and backward by a piston provided in an air cylinder or the like, is pivotally connected to the piston.

Further, 49 is an air jetting body such as a hose or a nozzle, and the sticking roller 3 is positioned on the moving surface of the sealed body 11.
An air outlet is opposed to the adhesion roller 31 so as to blow air toward the adhesion roller 31, and the air flow from the air jet 49 causes the adhesion start end of the adhesive tape 14 to reach the adhesion roller 3.
7. It is attached and held so that it is limp.

Further, in this pre-processing and sealing section 29, a plurality of presser rollers 50 for respectively pressing the cover plates 12 and 12 of the sealing section 15 on the upper and lower surfaces of the object to be sealed 11 are located on the carry-in side from the advancing position of the pasting roller 37. It is rotatably supported by the machine frame 19. Further, on the unloading side from the advancing position of the adhering roller 37, a plurality of pressing rollers 51 for pressing the adhesive tape 14 affixed to the sealing portion 15 on the upper and lower surfaces of the object to be sealed 11 are rotatably attached to the frame 19, respectively. It is pivoted.

Further, in the sealing line 17, as shown in FIGS. 5 and 7, a sensor 52 consisting of a photoelectric switch detects that the object to be sealed 11 has been carried in and causes the electric motor 25 to drive the conveyor chain 21. , when it is detected that the object to be sealed 11 has reached the position of the pre-processing sealer 1 structure 29, the sticking roller 37 of the sticking arm 36 is moved to the air cylinder so that it advances to the moving surface on the upper surface of the object to be sealed 11. A sensor 55 such as a charging switch that operates an electromagnetic valve for switching the air, and a pasting roller 31 of an arm 36 that detects when the sealed object 11 has reached a position near the II end of the groove 29 of the pretreatment 111, A sensor 54 such as a charging switch that operates a solenoid valve for switching air to the air cylinder so that it is retracted from one side of the sealed body 11 and the sealed body 11 has reached a position near the end of the pretreatment sealing mechanism 29. A sensor 55, such as a photoelectric switch, is provided to detect this and operate a solenoid valve for switching air to the air cylinder so that the cutter arm 44 is operated in the cutting direction of the adhesive tape 14.

Then, the object to be sealed 11 is pretreated and sealed by the sensor 55.
When the adhesive roller 37 reaches a position near the end of the sealing member 9, the cutter arm 44
is operated in the cutting direction of the adhesive tape 14, so that the cutter 46 cuts the adhesive tape 14 at a position away from the sealed body 11.

Further, a switch 56 for stopping the l1FJIIi 25 is activated by a pusher piece 2G provided on the conveyance chain 21 of the sealing line 17 when the object to be sealed 11 is sealed and carried out.

Next, a structure for sealing the joint portions of the lid plates 12 and 12 on the upper and lower opening surfaces of the sealed body 11 in the previous stage of this sealing device will be described with reference to FIGS. 4 to 6.

This front-stage sealing line 16 consists of a plurality of wheel conveyors 5 attached in parallel to a machine frame 57 from the carry-in side to the carry-out side.
8 and a pair of conveyor chains 59 disposed in parallel on the outside of this wheel conveyor 58, both conveyor chains 59 have a drive shaft 60 and a rotating shaft 61 pivotally supported on the machine frame 57.
The drive shaft 00 is suspended by sprockets 62 and 62 provided at the ends, respectively, and the drive shaft 00 is rotated by an electric motor 63. This conveyor chain 59 is connected to a pushing piece 6 that pushes the sealed object 11 on the wheel conveyor 58.
4 is attached, and this pushing piece 64 is attached to the sealed body 11.
This switch 65 is provided at the unloading end of the machine frame 57 so that the switch 65 that stops the electric motor l163 is activated when the electric lug 163 is sent out to the direction changing section 18. Further, a guide body 66 for guiding the sealed object 11 is provided above the outer side of the conveyance chain 59 so that the interval can be freely adjusted.

At an intermediate position of this machine frame 57, there are sealing mechanisms 67 in the upper and lower stages.
The upper and lower front sealing mechanisms 67 are constructed symmetrically, and the upper and lower front sealing mechanisms 67 can be adjusted according to the size of the object 11 to be sealed. W
lAdjustable numbering.

As shown in FIGS. 11 to 13, each of the front-stage sealing mechanisms 61 has a sticking arm 69 whose base is rotatably supported by a shaft 68 on the machine frame 57.
An adhesion roller 7o is rotatably supported at the tip of the adhesion arm 69, and this adhesion roller 70 is moved forward and backward by the rotation of the adhesion arm 69 onto the moving surface of the sealed object 11 moving on the wheel conveyor 58. It looks like this. And this adhesive arm 69
The guide roller 11 of the adhesive tape 14 is attached to the shaft 68 that supports the
is rotatably attached to the adhesion arm 69, and guide rollers 72 and 73, each of which has a low left peripheral surface processed to prevent the adhesive tape 14 from adhering, are each pivoted to guide the adhesive side of the adhesive tape 14. and adhesive tape 14
is guided by the guide rollers 71, 72, and 73 to the position of the sticking roller 10. Further, a rod 75 that is moved back and forth by a piston provided in an air cylinder or the like is pivotally attached to the protrusion 74 provided on the six adhesion arms.

When the upper and lower adhesion arms 69 have advanced to the moving surface of the object to be sealed 11, the adhesive tape 14 is applied 7M't from the vertical position to the carry-in side as shown in FIG.
? It is inclined at an angle α0 so as to obtain a stroke L for crimping a.

Further, the base of a cutter arm 1G is rotatably supported on the machine frame 57 by a shaft 17 in the vicinity of the pasting arm 69, and the tip side of the cutter arm 16 is bent approximately orthogonally. The cutter arm 76 is formed into an abbreviated shape, and a cutter 18 for cutting the adhesive tape 14 is attached to the tip of the cutter arm 76, and the cutter 78 cuts at an angle to the tape 14 to facilitate cutting. J, I'm in sea urchin. Further, a rod 80 that is moved back and forth by a piston provided in an air cylinder or the like is pivotally attached to the protrusion 19 that protrudes from the cutter arm 76.

Further, 81 is an air jetting body such as a hose or a nozzle, and the sticking roller 7 is positioned on the moving surface of the sealed body 11.
The air blower that blows air toward the end has a mouth, and is adapted to attach and hold the end of the adhesive tape 14 at which the adhesive tape 14 starts to be attached to the adhesive roller 10.

Further, in the sealing mechanism 61 at the front stage of ε, a plurality of presser rollers 82 for respectively pressing the cover plates 12 and 12 of the front sealing section 13 on the upper and lower surfaces of the object to be sealed 11 are arranged on the loading side from the advancing position of the sticking roller 10. It is rotatably supported by the machine frame 51. Further, on the unloading side from the advancing position of the adhering roller 70, a plurality of suppressing rollers 83 press the adhesive tape 14 affixed to the sealing section 13 at the front stage on the upper and lower surfaces of the object to be sealed 11.
are each rotatably supported by a machine frame 57.

Furthermore, a first
As shown in FIG. 4, the base portions of end adhering arms 84 curved into an arc are rotatably supported on the machine frame 51, and at the tips of each end adhering arms 84 there is a moving surface for the object to be sealed 11. Finishing base rollers 85 that are advanced are each rotatably supported. Then, a protrusion is provided on each finishing adhesion arm 84.
A piston rod 81, which is moved forward and backward by a piston of the air cylinder 4j, is pivotally connected to each of the protrusions 86.

Furthermore, the machine frame 57 is attached to the iKJ barrier structure 67 at the front stage of the upper and lower stages.
An arm 88 is rotatably supported on each of the adhesive presses, and a roller 89 is rotatably supported on a shaft 90 at the tip of the arm 88. . In each of these pressing operations, the arms 88 are each urged by a spring 91 in a direction in which the arms 88 come into pressure contact with the sealed object 11 .

Furthermore, as shown in FIGS. 5 and 6, in the previous sealing line 1G, a sensor 92 consisting of a photoelectric switch detects that the object to be sealed 11 has been carried in and drives the conveyance chain 59 by the electric motor 63. , a solenoid valve for switching air to the air cylinder so as to detect that the object to be sealed 11 has passed the position of the sealing structure 67 in the previous stage and to hold the sticking arm 69 backward from the moving surface of the object to be sealed 11; VJJ of air to the air cylinder so as to operate the cutter arm 76 and the end sticking arm 84. A sensor 94, such as a photoelectric switch, is provided to operate a solenoid valve.

Note that adhesive tapes 14 wound in a roll are rotatably attached to the upper and lower parts of the machine frames 19.57 of the upper and lower pretreatment sealing mechanisms 29 and each of the preceding sealing mechanisms 67, respectively.

Next, in the direction changing section 18, a large number of pole casters 96 are provided on a base board 95, and a stopper 97 is provided at the extended end of the sealing line 16 at the front stage of this base 5J95. Further, this direction changing section 18 is provided with a pressing body 98 for feeding the sealed object 11 into the sealing line 17, and this pressing body 98 is moved back and forth by a piston rod 100 of an air cylinder 99. When the direction changing unit 18 detects that the sealed object 11 has been carried in, the air cylinder 99
A detection switch 101 is provided for activating.

Next, the operation of this embodiment will be explained.

In the first-stage sealing process, when an object to be sealed 11 such as a cardboard box is fed onto the wheel conveyor 58 of the first-stage sealing line 16, the sensor 92 detects the object to be sealed 11, and the conveyance chain 59 is driven by the electric VA 63. , push piece 6
4 moves the object to be sealed 11 and presses the joint portions of the lid plates 12 and 12 on the upper and lower surfaces of the object to be sealed 11 with the press roller 82 so that the adhesive tape 14 can be easily attached, as shown in FIG. As shown, the top and bottom of the front end surface of this sealed body 11 are the same as those of the previous stage 11.
It is brought into contact with the sticking roller 70 of the wrapping mechanism 67. At this time, since the adhesion start end of the adhesive tape 14 is held attached to the adhesion roller 70 by the air flow jetted from the air jet 81, the adhesion start end of the adhesive tape 14 is attached to the object to be sealed 11. The top and bottom end faces are in contact with each other. And then the sealed body 11
When the adhesive tape 1 is moved, the adhesive arm 69, which is inclined toward the carrying-in side of the sealed object 11, is pressed and rotated in the vertical direction as shown by the chain line in FIG.
The adhesive tape 14 is pressed and rolled toward the starting end of the adhesive tape 14 to ensure that the starting end of the adhesive tape 14 is pasted. When the sealed body 11 further moves, the sticking arm 69 is rotated, and the adhesive tape 14 is
are sequentially pulled out and the adhesive tape 14 is adhered by moving the adhesive roller 71 to the joint portion of the cover plate 12, 12 on the upper surface of the object to be sealed 11, thereby sealing the upper and lower center portions of the object to be sealed 11. Next, when the object 11 to be sealed passes the position of the sealing mechanism 67 at the previous stage, the sticking arm 6 is moved by the detection by the sensor 93.
9 is retreated from the moving surface of the sealed object 11, and further, as the sealed object 11 moves, the cutter arm 76 is rotated by the detection operation of the sensor 94, and the adhesive tape 14 is cut by the cutter 78. Further, the detection operation of the sensor 94 causes the finish adhering arm 84 to advance to the moving surface of the object to be sealed 11, and the finish adhering roller 85 attaches the end portion of the adhesive tape 14 to the object to be sealed 1.
Press and adhere to the rear end surface of 1.

The adhesive tape 14 affixed to the sealing portion 13 at the front stage of the object to be sealed 11 is pressed by a rotating pressing roller 83 to ensure adhesion.

The object to be sealed 11 with the adhesive tape 14 attached to the previous sealing part 13 in this manner is carried out to the direction changing part 18, and the previous sealing mechanism 67 is leaked to the next sealing operation. Then, the switch 65 is operated by the pushing piece 64 of the conveyor chain 59.
is activated, the electric fI1 machine 63 stops, and the conveyor chain 5
9 is stopped.

Next, the sealed body 11 carried into the direction changing section 18 is stopped at the collar 97, the detection switch 101 is activated, the piston rod 100 of the air cylinder 99 is advanced, and the sealed body 11 is moved to the pole caster. Slide on 96,
14 is pushed by the acupuncture line 17.

When the sealed body 11 is fed into this i>J sealing in 17, the sensor 52 detects this sealed body 11, and when the conveyance chain 21 is driven by the electric motor 25, the pushing piece 2
6 moves the object 11 to be sealed, and the ends of the lid plates 12.12 on the upper and lower surfaces of the object 11 to be sealed are pressed by the presser roller 50 so that the adhesive tape 14 can be easily applied, and the sensor 53
When the object to be sealed 11 reaches the position of the sticking roller 37 of the pretreatment sealing mechanism 29 that has been advanced to the moving surface of the upper and lower surfaces of the object to be sealed 11, the cloth plate 12 on the upper and lower surfaces of the object to be sealed 11 is moved.
The front ends of both ends of 12 are brought into contact with sticking rollers 37 . At this time, since the sticking start end of the adhesive tape 14 is stuck and held on the sticking roller 37 by the air flow jetted from the air jet 49, there is a gap between the sticking ends of the adhesive tape 14 (in the width direction of the i end). Lid plate 12.1 of sealed body 11 with half protruding outward
They are attached to the front ends of the two ends in contact with each other. When the object to be sealed 11 is subsequently moved, the pasting roller 31 of the pasting arm 36 is moved over the top surface of the cover plate 12.12, and as shown in FIG. Then, there is an inner path of adhesive tape on both ends of the cover plate 12.12 of the sealed body 11! 1 (minute). Next, when the object to be sealed 11 passes near the rear end of the pretreatment 14 and the sealing mechanism 29, the pasting arm 36 is moved to be sealed as shown in FIG. 9 by the detection operation of the hinge 54. The cutter arm 38 is rotated by the detection operation of the sensor 55 due to the movement of the sealed body 11, and the adhesive tape 14 is moved by the pressure roller 51 and the tape receiver by the roller as shown in FIG. 41, the adhesive tape 14 is cut by the cutter 46 at the upper and lower positions of the sealed object 11, and even if an operational error occurs, the cutter 46 will not come into contact with the sealed object 11. When the sealing body 11 is moved, the adhesive tape 14 is pressed by the pressure roller 51 and stuck to the end.

When the object to be sealed 11 moves further and reaches the position of the final stage sealing mechanism 28, the rotary adhesive body 31 is rotated by the electric motor 32 ('-) and protrudes from both ends of the upper and lower lid plates 12. The rotary adhesive tape 14 comes into contact with the protrusion 14a of the adhesive tape 14 that is attached to the rotary adhesive tape. and not shown in FIG. 16 J: protrusion 1 protruding from the end of the sealed body 11 of the sea urchin adhesive tape 14
4a respectively move the sealed body 1 as the sealed body 11 moves.
1 and is bent toward the end surface 11a adjacent to the top surface of the sealing member 11 and is attached to the end surface 11a, thereby sealing both ends of the cover plate 12. In this way, when the sealing of the C-sealed object 11 is completed as shown in FIG.
is activated and stops the electric motor 25 e, m feed chain 21
will be stopped.

In the above embodiment, the rotary adhesive body 31 of the sealing line drawing 28 is formed of a rotary body with a brush on its circumferential surface, but it may also be formed of an elastic foam or the like.

Further, in the embodiment described above, the rotary adhesive body 31 is formed into an integrated roller-shaped body 1.
Although it is made of wood, it can also be made of a rotating adhesive body 31 made of a plurality of roller-like bodies as shown in FIG.

〔Effect of the invention〕

According to the present invention, the adhesive tape protruding portion is pivotably supported along the 11th part of the moving sealed body and is attached along the edge of one side of the sealed body with a part of the adhesive tape protruding in the width direction. A rotary pasting body for bending and crimping is provided on the adjacent end surface of the sealing body, and the rotary pasting body has an elastic contact portion for bending the adhesive tape on the circumferential surface, and Since the adhesive tape is pivoted so as to be tilted in the bending direction of the adhesive tape toward the conveyance direction of the sealed object, a part of the adhesive tape in the width direction is attached to the sealed portion of the object to be sealed such as a packaging box, for example, to the end of the lid plate. is pasted in a protruding manner and moved by the rw1 feeding means, and the position of the rotating sticking body is such that this sealed body is positioned on the movement surface of this sealed body (as the sealed body moves, The elastic touching part of the rotating adhesive body being rotated in the bending direction of the adhesive tape sequentially bends the protruding parts of the adhesive tape, and attaches the protruding parts of the adhesive tape to the edge of the end of the object to be sealed. It is possible to seal the sealed part of the object to be sealed, and the work of bending the protruding part of the adhesive tape pasted with a part of it protruding in the width direction can be done continuously while moving the packaging box in the transport direction. Therefore, it is a sign that can improve the efficiency of sealing work.

711 Description of rfj explanatory drawings Fig. 1 is an exploded perspective view of the sealing mechanism of a sealing device according to an embodiment of the present invention, and Fig. 2 is a front view of the sealing mechanism of the sealing device showing another embodiment. , FIG. 3 is a perspective view of a sealed object sealed by the previous sealing mechanism, FIG. 4 is a perspective view of a sealed object sealed by the same sealing mechanism according to the present invention, and FIG. FIG. 6 is a front view of the sealing device of the embodiment shown in FIG.
FIG. 7 is a side view of the same as above, FIGS. 8 to 10 are front views showing the operating state of the pretreatment sealing mechanism, and FIGS. Figure 14 is a front view of the unloading side of the sealing mechanism in the first stage of the same as above, Figures 15 J3 and 16 are explanatory diagrams of the operation of the sealing mechanism in the final stage of the same as above, and Figure 1
FIG. 7 is a front view of a conventional sealing device.

11...Sealed body, 14...Adhesive tape, 15...Sealing part, 31...Rotary pasting body.

Claims (1)

[Claims] (1) The protruding part of the adhesive tape, which is pivoted along the sealing part of the moving object to be sealed and is affixed along the edge of one side of the object with a part of the width in the width direction, is attached adjacent to the object to be sealed. The rotary adhesive body is provided with a rotary adhesive body that bends and presses the adhesive tape on the end face, and the rotary adhesive body has an elastic contact portion on its peripheral surface that bends the adhesive tape, and the adhesive tape is attached along the adjacent surface and in the direction of conveyance of the sealed object. A sealing device characterized by being pivotally supported at an angle in the bending direction of the adhesive tape.