JP2948481B2 - Sealing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for sealing an arbitrary edge on the lid side of a packaging box.

[0002]

2. Description of the Related Art In various products such as cosmetics and pharmaceuticals,
The container filled with these products is stored in a packaging box, and then the lid of the packaging box is closed and sealed with an adhesive tape. FIG. 10 is a perspective view showing a conventional sealing device of this type.
In FIG. 10, 100 is a packaging box, and 200 is a sealing device. The sealing device 200 includes a transfer table 201.
And a tape supply unit 210 mounted on an upper portion of a support frame 205 erected so as to straddle the transport table 201.
It is composed of On the upper surface of the transfer table 201,
A pair of transport belts 20 that sandwich and transport the packaging box 100
2,203 are attached. On the other hand, an adhesive tape 211 and the adhesive tape 21
1 is provided with a cutter (not shown) for cutting the sheet 1 into a predetermined length, and a roller section 212 for attaching the cut adhesive tape 211 to the upper portion of the packaging box 100.

[0003] Such a sealing device 200 is provided between the work conveyor belts 300 and 301. In this work transport belt, the packaging box 100 is transported from the right side to the left side of the figure as shown by the arrow G. An operation of packing containers such as bottles into the packaging box 100 is performed on the work transport belt 300. That is, in a state where the lid 101 is opened, a container such as a bottle is packed by the worker into the inside of the packaging box 100 (100-1) conveyed with the front face 102 facing the worker (not shown). After a while, the lid 10
1 is tightened and transported toward the sealing device 200.

[0004] Thereafter, the sealing portion 103 is rotated by a direction changing means (not shown) so as to face the sealing device 200 like the packaging box 100-2, and the lower end thereof is fed between the conveyor belts 202 and 203. . Then, since the transport belts 202 and 203 are rotating in the direction of arrow H, the packaging box 100-2 is moved to the transport belts 202 and 203.
Is transported toward the main body 210 while being sandwiched between
The adhesive tape 211 cut to a predetermined length by 12 is attached to the sealing portion (lid side portion on the lid side) 103 in an L-shape. The packaging box 100-2 to which the adhesive tape 211 has been attached in this manner is placed on the work conveyor belt 301,
It is transported to a predetermined place.

[0005]

However, in the above-described conventional sealing device 200, since both lower ends of the packaging box 100 are transported by being sandwiched between the transport belts 202 and 203, the packaging box 100 is transported. When the box 100 is tall and thin, the lower end of the packaging box 100 is
As a result, the packaging box 100 may be inclined backward as shown by a two-dot chain line in FIG. Further, the lower end of the packaging box 100 is
It may get caught in the air and lean forward. Further, when a speed difference occurs between the transport belt 202 and the transport belt 203, the packaging box 100 may be turned sideways.

As described above, in the conventional sealing device 200,
Since the packaging box 100 is easily inclined or turned sideways,
There is a problem that sealing failure of the sealing portion 103 by the adhesive tape 211 is likely to occur and reliability is lacking. Furthermore, the packaging box 100 is rotated so that the sealing unit 103 faces the sealing device 200, and the lower end is moved to the conveyor belts 202 and 2.
03 has to be sent, so that there is also a problem that complicated work is forced.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a sealing device which improves the reliability of the sealing operation and saves labor. Another object of the present invention is to provide a sealing device that can be used for sealing packaging boxes of various sizes.

[0008]

To achieve To achieve the object described above, the present invention provides a sealing apparatus for sealing paste the adhesive tape sealing portion of the packaging box, a detection mechanism for detecting the packaging box, the adhesive Rotary cutter for cutting tape
And, this rotary cutter is fixed length of the adhesive tape.
A rotation mechanism cylinder that forcibly rotates by the amount
A tape supply mechanism for feeding and cutting the adhesive tape for a predetermined length, and a tape supply mechanism for suspending the adhesive tape; an extruding mechanism for moving the packaging box in a horizontal direction upon detection by the detection mechanism; and a tape supply mechanism upon detection by the detection mechanism. And a vertical movement mechanism that lowers the adhesive tape and positions the cut adhesive tape forward in the moving direction of the packaging box.

According to a second aspect of the present invention, in the sealing device, the detection mechanism includes a stopper for positioning the conveyed packaging box, and a sensor for detecting the packaging box positioned by the stopper.

According to a third aspect of the present invention, in the sealing device, the pushing mechanism includes a cylinder mounted on the apparatus main body so as to be positioned at a predetermined height, and a pusher interlocking with a piston of the cylinder.

According to a fourth aspect of the present invention, the vertical movement mechanism includes a cylinder that holds the tape supply mechanism and moves along a guide shaft fixed to the apparatus main body.

[0012]

According to the above sealing device, packaging is performed by the detection mechanism.
The box is detected, and the tape supply mechanism removes the adhesive tape.
It is cut to a predetermined length and hung. At the same time, the detector
When the packaging box is detected by the structure, it is positioned at the specified height.
Packaging box is moved horizontally by the pushed out mechanism
At the same time, the tape feed mechanism is lowered by the vertical movement mechanism.
The cutting adhesive tape is placed in front of the packaging box in the moving direction.
You.

[0013] With this, the sealing portion of the packaging box, the roller
The adhesive tape is adhered in an L shape while being pressed.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a sealing device according to one embodiment of the present invention, and FIG. 2 is a plan view showing the sealing device according to this embodiment. The same members as those shown in FIG. 10 are described with the same reference numerals.

In FIG. 1, reference numeral 1 denotes a sealing device. The sealing device 1 includes a detection mechanism 10 for detecting the packaging box 100,
An extruding mechanism 20 for moving the packaging box 100 horizontally to the right in the figure, and a tape feeding mechanism 4 interlocked with the extruding mechanism 20.
0, and the vertical movement mechanism 30 for disposing the adhesive tape 211 forward in the moving direction of the packaging box 100;
Tape supply mechanism 40 which cuts 1 to a predetermined length and suspends it
And These detection mechanism 10 and extrusion mechanism 2
The vertical movement mechanism 30, the tape supply mechanism 40, and the tape supply mechanism 40 are assembled to the apparatus main body 2 disposed on the left side of the work transport belt 300.

The detecting mechanism 10 includes a stopper 11 formed at a lower part in the back of the apparatus main body 2 and protruding above the work transport belt 300, and a sensor 12 mounted on the stopper 11.
It is composed of That is, as shown in FIG. 2 and FIG. 3, the stopper 11 stops the packaging box 100 conveyed from the upstream side of the work conveying belt 300, and performs positioning. Then, the packaging box 100 stopped by the stopper 11 is detected by the sensor 12, and a detection signal is transmitted from the sensor 12 to the control panel 3 attached to the apparatus main body 2.

In FIG. 1, when the control panel 3 receives a detection signal from the sensor 12, it sends control signals to the push-out mechanism 20, the vertical movement mechanism 30, and the tape supply mechanism 40, and these mechanisms are operated as follows. It has a function to operate.

For example, a pneumatic cylinder is used as the pushing mechanism 20, and the cylinder 21 is attached to the lower side of the apparatus main body 2 and the cylinder 21 is detachably attached to the tip of a rod of a piston 22. And a pusher 23 arranged on the side of the transport belt 300 for use. That is, the pushing mechanism 20 receives the control signal from the control panel 3, switches the air pressure switching valve, and moves the piston 22 to the right in FIG. 1, thereby moving the pusher 23 from the cylinder 21 as shown in FIG. Extrude horizontally a predetermined length. Thereafter, the air pressure switching valve is switched to move the piston 22 to the left in FIG. 1 to retract the pusher 23 to the original position.

As shown in FIG. 1, such an extruding mechanism 20 is slidably mounted on the shaft 4 of the apparatus main body 2, and its vertical position can be adjusted by rotating the handle 5. Has become. Thereby, the extrusion mechanism 20 can be adjusted to an optimum height according to the size of the packaging box.

The vertical movement mechanism 30 is a mechanism for vertically moving the tape supply mechanism 40 as shown by an arrow A in FIG. 1, and is constituted by, for example, a pneumatic cylinder. Specifically, the mounting plate 6 having the holding plate 60 is slidably mounted on the shaft 7 of the apparatus main body 2, and the vertical position thereof can be adjusted by rotating the handle 8. And this mounting plate 6
The vertical movement mechanism 30 is assembled. That is, as shown in FIG. 6, the cylinder 33 is moved in the direction of arrow A by being guided by the pair of guide shafts 31 fixed to the mounting plate 6. Since the cylinder 33 fixes the holding plate 9, the movement of the cylinder 33 becomes the movement of the holding plate 9. On the other hand, in FIG. 6, a tape supply mechanism 40 (not shown) is held by the holding plate 9.

The vertical movement mechanism 30 receives the control signal from the control panel 3 and switches the air pressure switching valve to move the cylinder 33 downward along the guide shaft 31 as shown in FIG. Then, the tape supply mechanism 40 is lowered. Thereafter, the air pressure switching valve is switched, the cylinder 33 is moved upward, and the tape supply mechanism 40 is raised to the original position. Reference numeral 34 denotes a holding plate for holding down the lid of the packaging box at the time of sealing, and is attached to a lower portion of the holding plate 9. The central portion of the holding plate 34 is in an open state for disposing a roller 44 described later.

As shown in FIG. 7, the tape supply mechanism 40 includes a rotary cutter 41 around which the tip of a roll-shaped adhesive tape 211 is wound, and an adhesive tape 211 wound around the rotary cutter 41 having a predetermined length. And a roller 44 suspended by a roller 43 attached to the tape supply mechanism 40 and rotatable in the direction of arrow B.
And gear groups 45 and 4 for rotating the rotary cutter 41
6, 47, and a rotating means 50 for forcibly rotating the gear groups 45, 46, 47.

As shown in FIG. 8, the rotary cutter 41 has four teeth 41a projecting symmetrically in the radial direction, and a tape attaching portion 41b rotatably attached to the surface of the teeth 41a. doing. With such a configuration, the tip of the adhesive tape 211 attached to the tape attachment portion 41b of the upper tooth portion 41a-1 reaches the position of the tooth portion 41a-2 by rotating the rotary cutter 41 by 90 degrees (rotation in the direction of arrow C). It is fed in and further turned to the position of the tooth portion 41a-3 by rotating 90 degrees. Simultaneously with this feeding operation, the hammer 4
2 strikes the end of the tooth portion 41a-2, and the adhesive tape 211 on the tooth portion 41a-3 side is cut to a predetermined length. Then
The tape attaching portion 41b of the tooth portion 41a-3 rotates downward,
As shown in FIG. 7, the cut adhesive tape 211 is hung in a state of being attached to the tape attaching portion 41b.

As described above, every time the rotary cutter 41 is rotated by 90 degrees, the adhesive tape 211 is attached to the rotary cutter 41.
Is cut to the length of a quarter circle and is hung in a state of being attached to the tape attaching portion 41b. The rotation control of the rotary cutter 41 is forcibly performed by the rotating means 50 via the gear groups 45, 46 and 47. Is being done. Therefore, it is possible to prevent the adhesive tape from being erroneously fed, and to reliably perform the sealing operation.

As shown in FIG. 7, the rotating means 50 is composed of a pneumatic cylinder, and has a structure in which a connecting portion 53 is provided at the tip of a rod of a piston 52 housed in the cylinder 51. An arm 54 is rotatably attached to the connecting portion 53, and is fixed to the rotating shaft 48 of the gear 47 while the lower end of the arm 54 is gripped.
The rotation shaft 48 is rotatably attached to the holding plate 9.

Thus, when the control signal from the control panel 3 is received and the air pressure switching valve is switched, the cylinder 51 is connected to the connecting portion 5.
By pulling 3 in the direction of arrow E, the lower end of the arm 54 rotates, and the gear 47 rotates in the direction of arrow F. As a result, the gears 45 and 46 rotate, and the rotary cutter 41 rotates. The gear ratios of the gear groups 45, 46, and 47 are set such that the rotary cutter 41 rotates 90 degrees in one stroke of the piston 52. Thereafter, the air pressure switching valve is switched to push out the connecting portion 53 from the cylinder 51 and rotate the gear 47 in the reverse direction. At this time, the gear 46,
47 is assembled, for example, like a latch mechanism, and is set so that the gear group 46 does not rotate even if the gear 47 rotates in the reverse direction.

Next, the operation of the sealing device according to this embodiment will be described. As shown in FIG.
A guide 31 for guiding the packaging box 100 upstream of
Attach 0,311 according to the size of the packaging box.

Then, the type of the packaging box 100 is determined, and the pushing mechanism 20 and the tape supply mechanism 40 are determined according to the type.
Adjust the initial height of the. For example, as shown in FIG. 1, when the packaging box 100 having a small width and a high height is to be sealed, the handle 5 is rotated to position the pushing mechanism 20 at a position indicated by a two-dot chain line. That is, the pushing mechanism 20 is positioned at such a height that the pusher 23 hits the center of the packaging box 100. In addition, the handle 8 is rotated to move the mounting plate 6 upward to position the tape supply mechanism 40 at the position shown in FIG.

In this state, when the work transport belt 300 is driven, the packaging box 100 in which the bottles and the like are packed and the lid 102 is closed is moved upstream with the front surface 101 facing right in FIG. From the bottom). Thereby, the packaging box 100 is carried downstream along the guide 310,
In a state where the guide is guided by the guide 311 and the lid is closed by the pressing plate 60, the stopper 3 hits the stopper 11 of the detection mechanism 10 as shown in FIG.

When the packaging box 100 hits the stopper 11,
The sensor 12 detects the packaging box 100, and a detection signal is transmitted from the sensor 12 to the control panel 3. Thereby, the control panel 3
, A control signal is sent to the extrusion mechanism 20, the vertical movement mechanism 30, and the tape supply mechanism 40 (rotary means 50), and these mechanisms operate as follows.

That is, as shown in FIG. 4, the pushing mechanism 20 pushes the pusher 23 to move the packaging box 100 rightward. Before or after this, the vertical movement mechanism 30 lowers the tape supply mechanism 40 in the direction of arrow A as shown in FIG. Almost simultaneously with this operation, the tape supply mechanism 40 is driven.

By driving the tape supply mechanism 40, the gear 4
7 rotates in the direction of arrow F, and the rotary cutter 41 rotates 90 degrees through the rotation of the gears 45 and 46. This allows
As shown in FIG. 8, the tip of the adhesive tape 211 attached to the tooth portion 41a-2 is fed to the position of the tooth portion 41a-3, and at the same time, the hammer 42 is operated to cut the adhesive tape to a predetermined length. Is done. Cut adhesive tape 211
Is suspended with the tape attached to the tape attachment part 41b. Note that the lid 102 of the packaging box 100 is held down by the holding plate 34 by the lowering of the vertical movement mechanism 30.

In this state, the packaging box 100 pushed rightward by the pushing mechanism 20 is rotated by the rotary cutter 41.
To the side of the adhesive tape 211 hung. Then, the upper portion of the front surface 101 of the packaging box 100 comes into contact with the lower portion of the cut adhesive tape 211, and the adhesive tape 211 adheres to the upper portion of the front surface 102. Therefore, the packaging box 100 removes the adhesive tape 211 peeled off from the rotary cutter 41. It moves to the roller 44 side in a state where it is attached.

When the packaging box 100 moves toward the roller 44, as shown in FIG. 9A, the packaging box 100 comes into contact with the lower end of the adhesive tape 211 to which the roller 44 has adhered. Furthermore, packaging box 1
00, the roller 4 is moved as shown by the two-dot chain line.
4 rotates upward while being in contact with the adhesive tape 211. As a result, the lower portion of the adhesive tape 211 is securely bonded to the front surface 101. When the packaging box 100 is further moved from this state, the roller 44 reaches the position of the lid 102 as shown in FIG.
Press on 2. As a result, the upper portion of the adhesive tape 211 is securely bonded to the lid 102. In this way, the adhesive tape 211 closes the sealing portion (cover side ridge) of the packaging box 100 in an L shape, and the sealing operation of the packaging box 100 is completed.

When the sealing operation is completed in this manner, the pusher 23 is retracted to the original position, the vertical movement mechanism 30 is moved upward, and the tape supply mechanism 40 is moved to the original position (the position in FIG. 1). Rise. As a result, the sealed packaging box 100 is transported downstream by the work transport belt 300 as shown by the two-dot chain line in FIG.

As shown by the two-dot chain line in FIG. 2 to the right. Then, the handle 5 is rotated to position the pushing mechanism 20 at a low position shown in FIG. 1, and the handle 8 is rotated to lower the mounting plate 6,
By positioning the tape supply mechanism 40 at a low position corresponding to the height of the packaging box 100, the same sealing operation as described above can be performed.

According to the sealing device of the present embodiment as described above, the transfer line can be simplified. That is, in the conventional sealing device 200 shown in FIG. 10, it is necessary to dispose the sealing device 200 between the work transport belts 300 and 301, and it is necessary to secure a space for installing the sealing device 200 in the line. However, the sealing device 1 of this embodiment is
As shown in FIG. 1 and FIG.
Since there is no need to secure an installation space dedicated to the sealing device 1 in the line, the line space can be shortened accordingly. In addition, since the transfer line can be formed by one work transfer belt 300, the transfer line can be simplified.

The packaging box 100 is moved to the work transport belt 3.
If you put it on 00, the sealing work will be performed automatically,
As in the case of the conventional sealing device 200, the packaging box 100 is rotated so as to face the sealing device 200, and the transport belt 202,
The operation for sending the data to the 203 can be omitted, and the labor can be saved accordingly.

The tip of the pusher 23 is
The pushing mechanism 20 is positioned at such a height that it hits the center of the box.
In this configuration, the packaging box 100 is not inclined or turned sideways. As a result, good sealing can be performed even in the packaging box 100 having a high height and a narrow width. That is, according to the sealing device of the present embodiment, it is possible to accurately seal the packaging boxes 100 of various sizes.

Further, the supply of the adhesive tape is performed by rotating means 50.
Accordingly, the rotary cutter 41 is rotated by forcibly rotating the gear groups 45, 46, and 47, so that the rotary cutter 41 can be accurately and surely rotated by 90 degrees. Therefore, the adhesive tape 211 can be fed accurately by a predetermined length, and as a result, the adhesive tape 2
11 can be accurately cut to the size of a quarter circle of the rotary cutter 41. In this embodiment, a pneumatic cylinder is used as the push-out mechanism 20, the vertical movement mechanism 30, and the rotating means 50. However, the present invention is not limited to this, and other driving means may be used.

[0041]

As described above, according to the sealing device of the present invention, when the conveyed packaging box is detected by the detecting mechanism, the extruding mechanism moves the packaging box in the horizontal direction and the vertical movement mechanism. As a result, the cut adhesive tape suspended from the tape supply mechanism is arranged in front of the moving direction of the packaging box, so that the adhesive tape adheres to the moved packaging box, and the packaging box is automatically sealed. Therefore,
The operation of rotating the packaging box so as to face the sealing device can be omitted, and this has an excellent effect that labor can be saved.

Further , the adhesive tape is forcibly fed.
With the configuration, the rotary cutter can be precisely
Can be rotated. Therefore, the adhesive tape
It can be fed exactly the specified length, and as a result, the adhesive
Can be precisely cut to the required dimensions and supplied
There is an effect that.

Further , the extrusion mechanism is positioned at a desired height.
Can be moved to the packaging box.
The packaging box does not tilt or lie sideways.
As a result, it is good for tall and narrow packaging boxes
Can be easily sealed, and can be used for packaging boxes of various sizes.
Thus, there is an effect that accurate sealing can be performed.

Further, this apparatus is installed on one side of the transport line.
The installation space of the device during the line.
No need to secure space, shortening the line space accordingly
And the transfer line can be simplified.
You.

[Brief description of the drawings]

FIG. 1 is a side view showing a sealing device according to an embodiment of the present invention.

FIG. 2 is a plan view showing the sealing device of the present embodiment.

FIG. 3 is a plan view showing a detection mechanism.

FIG. 4 is a plan view showing the operation of the pushing mechanism.

FIG. 5 is a side view showing a lowering state of the tape supply mechanism by the vertical movement mechanism.

FIG. 6 is a schematic view showing a vertical movement mechanism.

FIG. 7 is a schematic perspective view showing a tape supply mechanism.

FIG. 8 is a schematic diagram showing a cutting operation of the rotary cutter.

9A and 9B are schematic diagrams showing an operation of bonding an adhesive tape by a roller, wherein FIG. 9A shows an operation of bonding to a front surface of a packaging box, and FIG. 9B shows an operation of bonding to a lid of the packaging box; The operation is shown.

FIG. 10 is a perspective view showing a sealing device according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sealing device 10 Detection mechanism 20 Push-out mechanism 30 Vertical movement mechanism 40 Tape supply mechanism 50 Rotating means 100 Packaging box 211 Adhesive tape

Claims (4)

(57) [Claims] 1. A sealing device for adhering and sealing an adhesive tape to a sealing portion of a packaging box, comprising: a detection mechanism for detecting the packaging box; a rotary cutter for cutting the adhesive tape;
Force the cutter to move for the specified length of the adhesive tape.
A feeding mechanism for feeding and cutting the adhesive tape for a predetermined length and suspending the adhesive tape, and an extruding mechanism for moving the packaging box in a horizontal direction when the detection mechanism detects the above. A vertical movement mechanism for lowering the tape supply mechanism and positioning the cut adhesive tape forward in the moving direction of the packaging box when a detection mechanism detects the sealing device. 2. The sealing device according to claim 1, wherein the detection mechanism includes a stopper for positioning the conveyed packaging box, and a sensor for detecting the packaging box positioned by the stopper. 3. The sealing device according to claim 1, wherein the pushing mechanism comprises a cylinder mounted on the apparatus main body so as to be positioned at a predetermined height, and a pusher interlocked with a piston of the cylinder. 4. The sealing device according to claim 1, wherein the vertical movement mechanism includes a cylinder that holds the tape supply mechanism and moves along a guide shaft fixed to the apparatus main body.