JP3181245B2 - Tape sticking device in packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape sticking apparatus for a packaging machine for sticking a tape piece to a sealing free edge on a sealing surface of an unsealed package.

[0002]

2. Description of the Related Art For example, a tape sticking device for sealing a flap butt portion of a cardboard box with an adhesive tape has been conventionally known. This device seals the entire end face of the sealing surface consisting of both flaps to be abutted with one piece of long tape. In the case of this apparatus, the tape is fed out while the cardboard box is transported in the direction of the butt of the flap in a state where the winding end of the tape is attached to the flap butt side end, and the tape is cut after being attached.

[0003]

For example, in the case of an overwrapping machine for folding and wrapping wrapping paper from above a box,
In order to improve the aesthetics and openability of the completed packaged product, it is required that the tape be sealed with a plurality of short tape pieces instead of one long tape piece as in the conventional device. There are cases. However, such a process could not be performed by the conventional device.

According to the present invention, not only one tape piece but also a plurality of tape pieces can be attached to the free sealing edge of the unsealed package, and in this case, the number of tape pieces to be attached and the tape It is an object of the present invention to provide a tape adhering device which can arbitrarily set a piece length and a sticking position of a tape piece and automatically set a sticking pitch of the tape piece according to these conditions.

[0005]

The present invention will be described with reference to the reference numerals in the drawings of the following embodiments (FIGS. 1 to 17). In the packaging machine according to the first aspect of the present invention, the tape piece (6) is attached to the sealing free edge (85) on the sealing surface (84) of the unsealed package (1b).
6) a tape sticking device (11) for sticking the tape.
The tape attaching device (11) is fed by the tape feeding means (17) which holds the feeding end (45a) of the tape (45) and feeds the tape by a set size (C), and the tape feeding means (17). Tape cutting means (18) for cutting the cut tape (45) to the set size (C), and the tape piece (66) cut and separated by the tape cutting means (18) is attached to the back surface of the adhesive surface (66a). (66
b) a tape piece transporting means (19) having an endless transport body (65) for transporting to a position corresponding to the sealing surface (84) of the unsealed package (1b) while being sucked and held from the side; The tape piece (66) in the one-side conveying means (19) is pressed against the free sealing edge (85) of the unsealed package (1b) and is attached to the sealing surface (84) of the unsealed package (1b). Tape piece pressing means (20) to be attached, and the unsealed package (1b)
Of the tape piece (66) attached to the sealing surface (84)
A controller (87) for switching the number (N) .

[0006] The tape sticking apparatus (11) according to the second aspect of the present invention has the following configuration added to the first aspect of the present invention. One end edge and the first cut end of the tape piece (66) are located on the sealing surface (84) of the sealing package (1c) and are opposed to each other on both sides in the longitudinal direction of the tape piece (66). The dimension between the first cut end side margin size (B ₁ ) and the dimension between the other edge and the last cut end of the tape piece (66) is the last cut end side margin size (B ₂ ).

A control section (87a) for controlling the drive of the tape piece conveying means (19) so that the first cut end margin (B ₁ ) and the last cut end margin (B ₂ ) become set values, respectively. It has.

According to a third aspect of the present invention, in the tape sticking device (11) according to the second aspect of the present invention, the set value of the first cut end margin (B ₁ ) and the last cut end margin (B) are set.
An input section (88) for inputting the set values of ₂ ) is provided.

A tape sticking apparatus (11) according to a fourth aspect of the present invention has the following configuration added to the first, second, or third aspect of the present invention. Sealed package (1c)
Is defined as a lateral dimension (L) between the opposite end edges on both sides in the longitudinal direction of the tape piece (66) on the sealing surface (84).

According to the value of the lateral dimension (L), the tape piece (66) is transported by the tape piece transporting means (19) to a position corresponding to the sealing surface (84) of the unsealed package (1b). An arithmetic unit (87c) for calculating the tape piece transport amount (D) is provided.

According to a fifth aspect of the present invention, in the tape sticking apparatus (11) according to any one of the first to fourth aspects, the tape adhering device (11) has a lateral dimension (L) of the sealing surface (84). An input section (88) for inputting a value is provided.

According to a sixth aspect of the present invention, there is provided a tape sticking apparatus (11) according to any one of the first to fifth aspects, wherein the tape piece (66) has a longitudinal dimension (C). An input section (88) for inputting a set value is provided.

According to a seventh aspect of the present invention, in the tape sticking device (11) according to any one of the first to sixth aspects, the tape adhering device (11) has a lateral dimension (L) of the sealing surface (84). A determination unit (87d) for selecting the number (N) of the tape pieces (66) according to the value is provided.

According to an eighth aspect of the present invention, in the tape sticking apparatus (11) according to any one of the first to seventh aspects, the number (N) of the tape pieces (66) is inputted. An input unit (88) is provided.

According to a ninth aspect of the present invention, in the tape sticking apparatus (11) according to the seventh or eighth aspect,
When the number (N) of the tape pieces (66) is plural, the transport pitch (A) between the tape pieces (66) arranged by the tape piece transporting means (19) is determined by the first cut end margin (B). ₁ )
And the set value of the last cut end margin (B ₂ ), the set value of the longitudinal dimension (C) of the tape piece (66), the number (N) of the tape pieces (66), and the closing. A calculation unit (87) that calculates according to the value of the lateral dimension (L) of the surface (84)
c).

According to a tenth aspect of the present invention, in the tape sticking apparatus (11) according to any one of the first to fifth aspects, the number (N) of the tape pieces (66) is one. In this case, according to the set value of the start-side margin (B ₁ ) and the end-side margin (B ₂ ), and the value of the lateral dimension (L) of the sealing surface (84). Calculating unit (87) for calculating the longitudinal dimension (C) of the tape piece (66)
c).

According to the eleventh aspect of the present invention, in the tape sticking apparatus (11), the tape piece (6
When the number (N) of 6) is one, the first cut end margin (B ₁ ) and the last cut end margin (B ₂ )
Is calculated in accordance with the longitudinal dimension (C) of the tape piece (66) and the value of the lateral dimension (L) of the sealing surface (84), and the margin at the first cut end side (B ₁ ) is calculated. The tape strip conveying means (19) controls the tape strip (6) such that the marginal dimension (B ₂ ) on the side of the last cut end and the marginal value (B ₂ ) become the calculated value.
6) is provided with a calculating section (87c) for calculating a tape piece transport amount (D) for transporting the tape piece to a position corresponding to the sealing surface (84) of the unsealed package (1b).

According to a twelfth aspect of the present invention, in the tape sticking device (11), the sealing surface (8
An input unit (88) for inputting the value of the lateral dimension (L) of 4) is provided.

According to a thirteenth aspect of the present invention, in the tape sticking device (11) according to the eleventh or twelfth aspect, an input unit for inputting a set value of a longitudinal dimension (C) of the tape piece (66). (88).

According to a fourteenth aspect of the present invention, the tape sticking device (11) has the following configuration added to the invention of any one of the first to thirteenth aspects. Blocking surface (8
4) The unsealed package (1b) is placed in a state where it faces downward, and the tape piece conveying means (1) is placed in the width direction of the tape piece (66).
9) has a notch (14a) that allows the tape piece pressing means (20) to move upward at a position corresponding to the sealing surface (84) of the unsealed package (1b). Moving table (14). A transfer for transferring the unsealed package (1b) in the width direction of the tape piece (66) to the stop position (R) where the free sealing edge (85) of the sealing surface (84) corresponds to the tape piece (66). Means (15). Sealing from one of the opposite edges on the sealing surface (84) of the unsealed package (1b) on both sides in the width direction of the tape piece (66) to the free sealing edge (85). A calculation unit (87c) that calculates the movement amount of the transfer means (15) by which the unsealed package (1b) is transferred to the stop position (R) according to the value of the stop interval (P or MP). It has.

According to a fifteenth aspect of the present invention, a tape sticking apparatus (11) has the following configuration added to the invention of any one of the first to fourteenth aspects. The tape piece transporting means (19) transfers the tape piece (66) to its rear surface (66).
An endless suction belt (65) as an endless conveyance body that is conveyed on the conveyance surface (65a) on the b) side, and is provided along the tape piece conveyance surface (65a) of the endless suction belt (65). A suction unit (68). This endless suction belt (65) has a back surface (66b) of a tape piece (66).
The suction holes (67) for sucking the sides are arranged side by side in the longitudinal direction, and the endless suction belt (6) is provided in the suction portion (68).
A suction port (6) for providing a suction function to the suction hole (67) of (5).
9) is provided. The tape piece pressing means (20) is a tape piece conveying surface (65a) of the endless suction belt (65).
Is provided on the sealing surface (84) of the unsealed package (1b).

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a tape sticking apparatus for a packaging machine according to an embodiment of the present invention.

<Outline of Wrapping Machine Schematically Shown in FIG. 1> This wrapping machine is a so-called overwrapping machine, which is of the same kind as the paper wrapping machine disclosed in Japanese Patent Application Laid-Open No. 64-45229. After 1) → 5), as shown in FIGS. 11 (a), 11 (b) and 11 (c), the unpackaged box 1a is tightly folded and packed by a wrapping paper 2 made of paper or film. In addition,
In FIG. 1, the left side is the front side, the right side is the rear side, and the direction perpendicular to the front-rear direction connecting the front side and the rear side is the left-right direction (the direction perpendicular to the paper).

1) When the unpackaged box 1a is placed on the box supply conveyor 3, the box detector 4 (photoelectric tube) operates, and the wrapping paper 2 stored in the magazine 5 in a state aligned with the guide 5a is fed. , And the unpackaged box 1 a is transported toward the lift 7. The unwrapped wrapping paper 2 is delivered to a wrapping paper transport conveyor 8 that holds the left and right portions of the wrapping paper 2 and transported to a predetermined position above the lift 7. The unpackaged box 1a is transferred onto the lift 7 located at the lowest position, stops against the box stopper 9, and stops. When the wrapping paper 2 is detected by the wrapping paper detection sensor 10 (photoelectric tube) in the middle of being conveyed above the lift 7, the tape attaching device 11 starts operating in a wrapping step 5) as described later.

2) When the lift 7 rises, the unpackaged box 1a on the lift 7 pushes up the wrapping paper 2. During the pushing up, as shown in FIG. 11A, the wrapping paper 2 is unpackaged by the left and right guides (not shown) of the folding mechanism 12.
Is bent down along the left and right sides.
When the lift 7 is further raised, the left and right folding claws (not shown) of the folding mechanism 12 enter the wrapping paper 2 along the front and rear sides of the unpackaged box 1a to form a fold in the wrapping paper 2. I do. When the lifting of the lift 7 ends and the entry of the left and right folding claws (not shown) ends, the folding mechanism 12
The front and rear folding plates (not shown) are turned to fold the wrapping paper 2 positioned before and after the unpackaged box 1a so as to hang down. Immediately before the lifting of the lift 7 is completed, the left and right receiving claws (not shown) of the folding mechanism 12 enter along the four corners on the lower surface of the unpackaged box 1a and hang down on the left and right sides of the unpackaged box 1a. The wrapping paper 2 is folded inward as shown in FIG.

3) When the lift 7 descends and the front and rear lower folding plates 13 and 14 of the folding mechanism 12 approach each other, it hangs down along the front and rear sides of the unpackaged box 1a as shown in FIG. The folded wrapping paper 2 is folded. in this case,
Regarding the amount of the front and rear lower folding plates 13 and 14 entering the unpackaged box 1a, the front lower folding plate 13 on the upstream side in the box unloading direction (front and rear direction) is on the downstream side in the box unloading direction (front and rear direction). Since the number of the wrapping papers 2 is larger than that of the lower lower folding plate 14, the wrapping paper 2 on the upstream side in the box unloading direction (front-rear direction) among the wrapping papers 2 hanging on the front and rear sides of the unwrapped box 1a is the unwrapped box 1a.
Of the wrapping paper 2 on the downstream side in the box unloading direction (front-rear direction) is bent only at a part thereof.

4) Then, the two attachments 15a
Unloading overhead conveyor 15 (transporting means)
Starts rotating, the front and rear folding plates (not shown) of the folding mechanism 12 are positioned above the unpackaged box 1a, and the left and right folding claws and the left and right receiving claws (not shown) of the folding mechanism 12 are not folded. Escape to the left and right sides of the packaging box 1a. The attachment 15a of the unloading overhead conveyor 15 is a detection sensor 16
When the unpackaged box 1a is pushed out after being detected by the (photoelectric tube), the wrapping paper 2 on the downstream side in the box unloading direction (front-rear direction) is completely removed by the rear lower folding plate 14 along the lower surface of the unpackaged box 1a. 11 (c), and is superimposed on the previously folded upstream wrapping paper 2 to form an unsealed package 1b (unsealed package) shown in FIG. 11 (c). Further, when the attachment 15a moves and the unsealed packaged product 1b is completely transferred onto the rear lower folding plate 14, the front and rear lower folding plates 1
3 and 14 start to separate from each other, and the unsealed packaged product 1b is pushed by the attachment 15a, and is attached to the rear lower folding plate 14 (moving mounting table) with tape as described later. It is transported above the device.

5) Next, a tape attaching operation to the unsealed packaged product 1b is performed by the tape attaching device 11 described in detail below. Thereafter, the sealed package 1c (sealed package)
Is carried out.

<Details of the Mechanical Structure of the Tape Sticking Apparatus 11> The tape sticking apparatus 11 shown in FIGS. 2 to 6 is roughly divided into a tape feeding means 17, a tape cutting means 18, a tape piece conveying means 19, and And a tape piece pressing means 20. The mechanical structure of each of the means 17, 18, 19, and 20 will be described in detail with * below, while appropriately mixing the tape attaching operation. FIG. 5A is an enlarged view of the tape sticking device 11 shown in FIG. 1, and FIG. 2 shows the front, rear, left, and right sides of the tape sticking device 11 corresponding to the packaging machine shown in FIG. , 4, and 5.

* Tape feeding means 17 A mounting frame 22 is supported by a machine frame 21 of the packaging machine and extends in the left-right direction. A mounting plate 23 is supported on the right side of the mounting frame 22 so that the mounting frame 22
Is erected upward from the front outside.

A pay-out shaft 24 is rotatably supported on the right side of the mounting frame 22, and a pay-out roller 25 (tape holding unit) is rotatably attached to the pay-out shaft 24 in the mounting frame 22. A guide rod 26 for preventing winding is inserted on the center of the feeding roller 25. A drive motor 27 is supported on the machine frame 21 to the right of the feed shaft 24 and below the mounting frame 22. A drive shaft 28 is rotatably supported above the drive motor 27 on the right side of the mounting frame 22. Mounting frame 2
2 on the output shaft 27a of the drive motor 27, the drive shaft 28 and the feed shaft 24, respectively.
9, 30, 31 are integrally rotatably supported, and a timing belt 33 is wound around each transmission pulley 29, 30, 31 via an intermediate pulley 32. Drive motor 2
When the timing belt 33 rotates according to 7, the feeding roller 25 rotates.

Above the feed roller 25, the mounting plate 23
The L-shaped feed lever 35 is rotatably supported by the interlocking shaft 34 at the rear side of the mounting plate 23, and the interlocking shaft 34 is rotatably supported at the front side of the mounting plate 23. An interlocking lever 36 is supported on the shaft 34 so as to be integrally rotatable. A feed roller operating air cylinder 37 is mounted on the front side of the mounting plate 23, and a piston rod 37 a of the air cylinder 37 is connected to an interlock lever 36. A feed roller 39 (tape holding unit) is rotatably supported by the feed lever 35. A one-way clutch is inserted into the feed roller 39 and can rotate only in the same direction as the feed roller 25. The piston rod 37a of the air cylinder 37 is connected to a feed roller operating solenoid valve 40 (FIG. 7).
When the feed lever 35 rotates vertically through the interlocking lever 36 and the interlocking shaft 34, the feed roller 39 is pressed against the feed roller 25, and the feed lever 35 is pressed from the feed roller 25. A state of being separated upward can be taken. A stopper 41 is screwed to the rear side of the mounting plate 23 above the feed lever 35 so that the position can be adjusted. The feed lever 35 comes into contact with the stopper 41 to set the upper movement limit.

A tape guide 42 is mounted on the right side of the feed lever 35 and adjacent to the feed lever 35 and on the rear side of the mounting plate 23. A tape roll holder 43 is rotatably supported on the upper right side of the tape guide 42 and behind the mounting plate 23, and a tape roll 44 is attached to the holder 43.
The tape 45 pulled out from the tape roll 44 is mounted on the tape guide 42 via both guide rollers 46 and 47, and the feeding end portion 45a of the tape 45 is placed on the feeding roller 25 and the winding prevention guide rod 26. Put on top. When the feed roller 39 is pressed against the feed roller 25, the feed end portion 45a is held between the rollers 25 and 39. When the feeding roller 25 rotates in this pinched state, the feeding end 45a of the tape 45 is fed. In a state where the feed roller 39 is separated from the feed roller 25, even if the feed roller 25 rotates, the feed end portion 45a
Is not paid out. Incidentally, the upper surface of the tape 45 (delivery end 45a) is an adhesive surface.

An air nozzle 48 is mounted above the feed lever 35 and behind the mounting plate 23. Information board 4
9 is supported by the feed lever 35 on the left side of the feed roller 39, and prevents the tape 45 (feed end 45a) from being wound around the feed roller 39, which is likely to occur because the adhesive surface of the tape 45 is upward. The air nozzle 48 is de-energized by an air nozzle actuating solenoid valve 50 (see FIG. 7), so that the air ejection port 48a
Spouts air from The air from the air ejection port 48a is blown to the supply end 45a of the supplied tape 45.

A metal piece 51 is attached to one of the two guide rollers 46 and 47 around which the tape 45 drawn from the tape roll 44 is wound, and the mounting plate 23 faces the metal piece 51. The proximity switch 52 is attached to the rear side of the switch. When the guide roller 47 rotates as the tape 45 is pulled out, the proximity switch 52 detects the metal piece 51. If this metal piece detection signal is not output, it is determined that the tape 45
And stop the packaging machine.

* Tape cutting means 18 A cutter operating air cylinder 53 is attached to the upper left of the feed roller 25 and to the rear of the attachment plate 23, and its piston rod 53a projects downward. The cutter 54 is supported by the piston rod 53a, and the cutting and holding portion 55 is supported side by side on the left side of the cutter 54. The cutting holder 55 projects slightly below the cutter 54. This cutting holder 55
It is made of an elastic body such as a sponge, and a cloth material having elasticity and low tackiness is wound around the outer periphery thereof. When the piston rod 53a of the air cylinder 53 advances and retreats due to deenergization of the cutter operation solenoid valve 56 (see FIG. 7), the cutter 54 and the cutting and holding portion 55 move up and down integrally, and the feeding end of the fed tape 45. There can be a state of moving downward toward the part 45a and an upward state of moving away from the feeding end 45a.

The tape piece conveying means 19 includes a drive shaft 28 rotatably supported on the right side of the mounting frame 22 and a support shaft 57 mounted on the left and right outer sides of the left side of the mounting frame 22. Has a driven shaft 58
Are movably supported in the axial direction (left-right direction).
The driven shaft 58 is urged leftward by a compression coil spring 59 wound around the front and rear support shafts 57. In the mounting frame 22, a drive pulley 60 is supported by the drive shaft 28 so as to be integrally rotatable, and a driven pulley 61 is driven by the driven shaft 58.
Are rotatably supported. The tape feeding means 1
The suction shaft 63 is attached to the mounting frame 22 at a position slightly away from the feeding roller 25 of FIG.
The suction shaft roller 64 is rotatably supported by the suction shaft 63 in the mounting frame 22. An endless suction belt 65 (endless conveyance body) is wound between the driving pulley 60 and the driven pulley 61. The endless suction belt 65 is wound below the feed roller 25 and below the intermediate pulley 66, and is wound from the intermediate pulley 66 above the suction shaft roller 64.
The entire outer side of the endless suction belt 65 is a tape-side conveying surface 65a, and in particular, the tape-side conveying surface 65a which is an upper portion of the endless suction belt 65 between the suction shaft roller 64 and the driven pulley 61 The roller 25 is substantially at the same height as the uppermost portion of the peripheral surface.

The drive motor 27 of the tape feeding means 17 is also used as a drive source of the endless suction belt 65. When the timing belt 33 is rotated by the drive motor 27, the endless suction belt 65 is driven together with the drive shaft 28.
Rotates. The drive motor 27 is a stepping motor driven based on a pulse signal. The peripheral speed of the endless suction belt 65 is set to be higher than the peripheral speed of the feeding roller 25. The peripheral speed of the endless suction belt 65 may be at least the same as the peripheral speed of the feeding roller 25. Further, the drive motor 27 may be a servo motor.

The feeding end 45 of the fed tape 45
a protrudes above the endless suction belt 65 near the suction shaft roller 64. In the tape cutting means 18, when the cutting and holding unit 55 and the cutter 54 move down, the cutting and holding unit 55 moves the endless suction belt 65 near the suction shaft roller 64.
The feeding end 45a is sandwiched between the feeding end 45a and the upper end of the feeding end 45a.
Cut 5a. Between the time when the cutting holder 55 and the cutter 54 move down and the time when the cutter 54 moves up again, the air nozzle 48
From the air ejection port 48a of the air outlet 4a after cutting.
The portion 5a is sprayed so that this portion is not caught in the feed roller 39 after cutting.

In the endless suction belt 65, a large number of suction holes 67 are arranged in the center in the width direction at equal intervals in the longitudinal direction. A suction chamber 68 (suction unit) is provided between the suction shaft roller 64 and the driven pulley 61 along the tape piece conveying surface 65a, which is the upper part of the endless suction belt 65, inside the endless suction belt 65. It is supported by a vertical movement mechanism 74 of the pressing means 20. A plurality of suction ports 69 are formed in the belt guide plate 68a provided on the suction chamber 68. The endless suction belt 65 moves while being in contact with the belt guide plate portion 68a, and in this contact state, each suction port 69 of the suction chamber 68 is moved.
Communicates with each suction hole 67 of the endless suction belt 65. A plurality of suction hoses 70 are connected to the suction chamber 68. Each of the suction hoses 70 is connected to a blower (not shown). A suction passage 71 is formed in a suction shaft 63 that supports the suction shaft roller 64, and a suction port 72 of the suction passage 71 is formed in a belt guide 63 a that is exposed outside the suction shaft roller 64. . The endless suction belt 65 moves while being in contact with the suction shaft roller 64 and the belt guide 63 a, and the suction port 72 of the belt guide 63 a communicates with each suction hole 67 of the endless suction belt 65 in the contact state. I do. A suction hose 73 is connected to the suction path 71. This suction hose 73 is also connected to a blower (not shown).

A suction chamber 68 is provided by a blower (not shown).
When the suction port 72 of the belt guide portion 63a has a negative pressure, the tape piece 66 cut by the tape cutting means 18 (see FIG. 6) is moved from the back surface 66b side of the adhesive surface 66a to the endless suction belt 65. Tape single transfer surface 6
5a, the endless suction belt 65 is held in this state.
Rotates and is transported to a position corresponding to the unsealed package 1b (unsealed package).

The center of the tape piece 66 held in the suction direction in the width direction, that is, the feeding end 45a of the tape 45
Of the endless suction belt 65 is aligned with the center of the endless suction belt 65 in the width direction.
9, a tape guide 42, guide rollers 46 and 47, and a tape roll holding portion 43 are disposed at corresponding positions in the front-rear direction.

The vertically moving mechanism 74 supporting the suction chamber 68 includes a parallel four-bar rotating chain 75 on both front and rear outer sides of the mounting frame 22. The front / rear two-parallel four-bar rotation chain 75 includes left and right fixed center shafts 76 supported by the mounting frame 22, and left and right levers 77 rotatably supported by the left and right fixed center shafts 76, respectively. An interlocking rod 79 rotatably supported by left and right permanent center shafts 78 is provided between the left and right levers 77. The suction chamber 68 is rotatably supported by left and right permanent center shafts 80 with respect to the left and right levers 77 of the front and rear biparallel four-bar rotating chain 75. A suction chamber operating air cylinder 81 is mounted on the rear outside of the left side of the mounting frame 22. The piston rod 81a of the air cylinder 81 is connected to the left lever 77 of the rear parallel four-joint rotary chain 75 among the left and right levers 77 of the front and rear double-joint rotary chain 75. When the piston rod 81a of the air cylinder 81 advances and retreats due to demagnetization of the suction chamber operating solenoid valve 82 (see FIG. 7), the suction chamber 68 (also used as a pressing part in addition to the suction part)
It translates up and down via the front and rear biparallel four-bar rotating chain 75. When the suction chamber 68 moves upward and pushes up the suction belt 65, the driven shaft 58 moves rightward against the elastic force of the compression coil spring 59 along the axial direction of the left and right support shafts 57. Note that the suction chamber 68 moves down until it comes into contact with the stopper 83.

<Explanation of Replenishment of the Packaging Step 5)> As shown in FIGS. 1 and 5A, the rear lower folding plate 14 described above is used.
When the (moving mounting table) stops at the separated end, the tape adhering device 11 corresponds to the window 14a (notch) provided in the rear lower folding plate 14. The unsealed package 1b (unsealed package) is pressed by the attachment 15a of the unloading overhead conveyor 15 as it is, and the free sealing edge 85 on the sealing surface 84 of the unsealed package 1b (FIG. 11C) When the reference (refer to the interpretation of terms below) is at a position corresponding to the tape application device 11, the unloading overhead conveyor 15 stops. At this time, as will be described later in detail as a tape attaching operation, a plurality of or one tape piece 66 is conveyed below the unsealed packaged product 1b by the endless suction belt 65, and the unloading overhead conveyor is used. 15 stops, the suction chamber 68 is moved upward, and the tape piece conveying surface 65a of the endless suction belt 65 is pressed against the sealing surface 84 of the unsealed packaged product 1b, and the tape piece of the endless suction belt 65 is stopped. The tape piece 66 on the transport surface 65a is pressed against and adhered to the free sealing edge 85 of the sealing surface 84. Further, after the endless suction belt 65 is moved downward due to the downward movement of the suction chamber 68, the unloading overhead conveyor 1
5 rotates, and the sealed packaged product 1c (sealed package) is carried out. <Details of the electrical configuration of the packaging machine mainly related to the tape sticking device 11> * Electrical block circuit shown in FIG. 7 A controller 87 provided in the operation unit 86 shown in FIG.
Is composed of a control unit 87a, a storage unit 87b, a calculation unit 87c, a determination unit 87d, and the like.
6, an input unit 88 including a keyboard and the like, a potentiometer 89 attached to the wrapping paper guide 5a of the magazine 5, a box detector 4 of the box supply conveyor 3, and a wrapping paper detection of the wrapping paper transport conveyor 8. The sensor 10 is connected to the attachment detection sensor 16 of the unloading overhead conveyor 15, and signals from these are input to the controller 87. On the output side of the controller 87, a drive motor 90 (servo motor) for driving the wrapping paper conveyor 8 and a drive motor 91 (servo motor) for driving the unloading overhead conveyor 15 are provided.
And the endless suction belt 65 and the drive motor 27 for the feeding roller 25, the feed roller actuation solenoid valve 40, the air nozzle actuation solenoid valve 50, the cutter actuation solenoid valve 56, and the suction chamber actuation solenoid valve 82 in the above-described tape sticking device 11.
Are connected and are driven and controlled by the controller 87 based on a signal from the input side.

* Regarding the value of the potentiometer 89 of the wrapping paper guide 5a of the magazine 5 When the wrapping paper guide 5a in the magazine 5 is adjusted to the wrapping paper 2, the potentiometer changes according to the wrapping paper size (vertical dimension HM and horizontal dimension). The signal value of 89 is input to the controller 87. Incidentally, the vertical dimension HM is a dimension in the front-rear direction, and the horizontal dimension is a dimension in the left-right direction.

* The following is input from the input unit 88. The values of the vertical dimension M, the horizontal dimension L, and the height dimension S of the unsealed package 1b (unsealed package) or the sealed package 1c (sealed package), FIG. 11C and FIG. As shown in FIGS. 14 and 16, the vertical dimension M is a dimension in the front-rear direction in which the unsealed package 1b or the sealed package 1c is carried out, and the horizontal dimension L is the unsealed package 1b or the sealed package. The left-right dimension perpendicular to the carry-out direction of the package 1c, that is, the longitudinal direction of the tape piece 66 on the sealing surface 84 of the unsealed package 1b or the sealed package 1c (see the interpretation of the term described later). The height dimension S is a dimension in the vertical direction between both end edges facing each other on both sides in the direction.

The values of the vertical dimension M, the horizontal dimension L and the height dimension S are input to the input section 88. Regarding the input of these dimension values, a mechanism for measuring the vertical dimension M, the horizontal dimension L, and the height dimension S of the unpackaged box 1a may be provided in the box supply conveyor 3, and this may be used as an input unit.

In this embodiment, the unpacked box 1
a is wrapped in close contact with the wrapping paper 2 for packaging, so that the vertical dimension M, the horizontal dimension L, and the height dimension S of the unwrapped box 1a
Is the vertical dimension M of the unsealed packaged product 1b and the sealed packaged product 1c,
Treated as the same as the horizontal dimension L and the height dimension S. Accordingly, the vertical dimension M, the horizontal dimension L, and the height dimension S of the unsealed packaged article 1b or the sealed packaged article 1c are replaced with the vertical dimension M, the horizontal dimension L, and the height dimension of the unpackaged box 1a. Each value of S may be input.

The values of the vertical dimension HM and the horizontal dimension of the wrapping paper 2 As described later, instead of calculating the values of the vertical dimension HM and the horizontal dimension of the wrapping paper 2 by calculation, the values of these dimensions are input to the input unit 88. input.

[0050] - (longitudinal dimension of the tape piece 66) tape piece length C and as shown in the first cut end side margin dimensions B ₁ and value Figure 12, 14, 16 of the last cut end side margin dimension B _2, the tape piece length is C is a dimension along the lateral direction is a longitudinal direction of the tape piece 66, the tape strips 66 are first cut end side margin dimension B ₁ in the blockade surface 84 of the sealing package 1c (interpretation see below terms) Of the tape piece 66 and the first cut end of the tape piece 66 (refer to the interpretation of the following term), and the last cut end side margin B _Two
Is also the dimension between the other edge and the last cut end of the tape strip 66 (see the interpretation of the terms below).

The respective values (set values) of the tape piece length C and the first cut end margin size B ₁ and the last cut end margin size B ₂ are input to the input section 88. The value and the value of the last cut end side margin dimension B ₂ of the first cutting edge side margin dimension B ₁ represents may be 0, or may be the same.

The value of the switching lateral dimension L _n for switching the number N of the tape pieces 66 to be attached The switching lateral dimension L _n is an arbitrary value corresponding to the lateral dimension L of the unsealed package 1b (sealed package 1c). Set value.

[0053] Entering this switching換横dimension L _n to the input section 88. The number N of the tape pieces 66 to be pasted is input into the input unit 88.

Adjustment Value of Stop Position R of Attachment 15a The adjustment value of the stop position R of the attachment 15a will be described in relation to the stop position control of the unloading overhead conveyor 15.

As shown in FIG. 9, the unloading overhead conveyor 15 is driven by the drive motor 91 (for example, a servo motor) controlled by a pulse signal. A sprocket 15c is attached to the motor drive shaft 15b, and a chain 15 is provided between the sprocket 15c on the drive shaft 15b side and the sprocket 15e on the driven shaft 15d side.
f, and two attachments 15a are attached to the chain 15f. When a position in unloading direction of the width direction centers of the tape piece 66 carried by the endless suction belt 65 (the width direction of the center of the endless suction belt 65) and G, unsealed packages extrusion surface of the attachment 15a is The attachment movement amount from the detection by the detection sensor 16 to the position immediately above the G position (that is, the number of control pulses corresponding to the corresponding motor drive amount) is a predetermined value. As shown in FIGS. 12, 14, and 16, the tape piece 66 on the sealing surface 84 of the sealed packaged product 1c is provided.
Assuming that the dimension from one of the opposite edges on both sides in the width direction (refer to the interpretation of the terms to be described later) to the sealing free edge 85 is P, this dimension is calculated as described below. The movement amount obtained by subtracting (M−P) from the predetermined value, that is, a value obtained by subtracting the number of pulses corresponding to (M−P) from the predetermined number of pulses, is calculated by the calculation unit 87c.
After the unsealed package extrusion surface a is detected by the detection sensor 16, the drive motor 91 is driven and then stopped by an amount corresponding to the number of pulses of this value. At this time, the attachment 15a
The unsealed packaged product 1b pressed at the stop also stops at the stop position R, and its free sealing edge 85 coincides with the position G in the unloading direction of the center of the tape piece 66 in the width direction.

The amount of movement of the attachment 15a can be changed, and the stop position R of the unsealed packaged product 1b changes in the unloading direction. This operation is performed by inputting an adjustment value from the input unit 88 as the adjustment of the stop position R in the unloading direction, and this value can be stored. The adjustment value of the stop position R is relatively smaller than the tape piece 66 in the direction of the vertical dimension M of the unsealed packaged product 1b.
Is an adjustment value relating to the pasting position. The value of the sealing portion interval P or the value of (M−P) may be input from the input unit 88. The adjustment value of the stop position R input or stored as described above, or the input M or (M
-P), the number of pulses for controlling the drive of the drive motor 91 is calculated by the arithmetic unit 87c in the same manner as in the case described above.
Is calculated by

The storage unit 87b of the controller 87 stores the value of the tape piece length C (the length in the longitudinal direction of the tape piece 66) input to the input unit 88, the first cut end margin size B ₁ and storing the values of the last cut end side margin dimension B ₂ and switching換横dimension L _n. The storage unit 87
b is a code number for each of the unsealed package 1b (unpackage box 1a), the values of the vertical dimension M, the horizontal dimension L and the height dimension S of the unsealed package 1b input to the input unit 88. In addition, the values of the vertical dimension HM and the horizontal dimension of the wrapping paper 2 input to the input unit 88 can be stored by attaching a code number to each wrapping paper 2. Further, the storage unit 87b stores
The adjustment value of the stop position R of the attachment 15a is also stored. These stored values are read out when the tape attaching device 11 and the packaging machine operate.

* Judgment unit 87d of the controller 87 In this judgment unit 87d, the lateral dimension L of the unsealed packaged product 1b (sealed packaged product 1c) input to the input unit 88 or read from the storage unit 87b. comparing values and, the value of the switching換横dimension L _n switching the joining number n of the tape piece 66 read by the storage unit 87b, judges tape joined number n.
In other words, determined that if the value of the lateral dimension L of the unsealed package 1b is not less than the value of the switching換横dimension L _n in the case of less than a value of N = 3, switching換横dimension L _n is N = 2 I do. Further, as described above, by inputting the number N of the tape pieces 66 pasted into the input unit 88 without going through the determination unit 87d, the number N of the tape pieces 66 pasted can be set to an arbitrary number each time. It is possible. In this case, the number N of pasting is 3 or 2
Or 1.

* Operation unit 87c of the controller 87 This operation unit 87c performs the following operation when the number N of the tape pieces 66 is plural.

The value of the transport pitch A between the tape pieces 66
(However, the condition of A> C) In the sealed packaged product 1c shown in FIG.
In this case, A = (L−B₁-B_Two-C) / 2. FIG.
In the sealed packaged product 1c shown in FIG.
A = LB₁-B_Two-C. In general, the number of
In the case of A = (L−B₁-B_Two-C) / (N-1)
You. Therefore, the judgment is made by the judging section 87d or entered into the input section 88.
Entered or recorded in the input section 88
Length C (tape piece) read from the storage unit 87b.
66 in the longitudinal direction) and the margin B at the first cut end side
₁And the margin B on the last cut end_TwoTape based on the value of
Attaching pitch A between pieces 66, that is, conveyance between tape pieces 66
The value of the pitch A is calculated by the above equation. First off
Margin B on the stump side₁Value and margin B on the last cutting end _Twoof
The values may be zero or the same.

-Corresponds to the sealing surface 84 of the unsealed packaged product 1b
Transfer distance D (tape) to transfer the tape piece 66 to the position
As shown in FIG. 2, when the unsealed packaged product 1b is carried out, as shown in FIG.
The center J of the lateral dimension L of the unsealed packaged product 1b is the lateral dimension
Always at the same position in the left and right direction even if the law L changes
You. Therefore, between the center J and the cutter 54
The dimension is constant, and the dimension value is K. Also suction
When the chamber 68 moves upward, it is held on the endless suction belt 65.
The held tape piece 66 is connected to the tape conveying means 19 and the tape.
Due to the mechanism of the pressing unit 20, the pressing unit 20 is shifted in the left-right direction. FIG.
(J) (k), FIGS. 15 (g) (h) and 17 (d)
As shown in (e), the endless suction belt 65 is not sealed.
The value of this shift amount when contacting the lower side of the equipment 1b is
H. Attaching pitch A to endless suction belt 65 (conveyance
The tape pieces 66 arranged at the pitch A) are attached to the unsealed package 1b.
Transfer distance to transfer corresponding to the lower surface (sealing surface 84)
For D, D = K− (L / 2) + B_Two+ H.
Since the values of K and H are constant, the values should be input to the input unit 88.
Or the value of the horizontal dimension L read from the storage unit 87b and the last
Cutting end side margin B _TwoThe value of D gives the value of D
You. If this deviation H is negligible, D
D = K− (L / 2) + B_TwoBecomes

The value of the sealing portion interval P shown in FIGS. 12, 14, and 16 This sealing portion interval P corresponds to the unsealed packaged product 1b (sealed packaged product 1b).
This is the dimension from one of the two opposing edges on the sealing surface 84 of c) facing each other on both sides in the width direction of the tape piece 66 (refer to the interpretation of the following terminology) to the free sealing edge 85.

The unpackaged box 1a is packaged so that the following relationship is obtained in the above-described packaging process (see FIG. 8B). That is, in the sealed packaged product 1c shown in FIG. 8 (a), the wrapping paper 2 which is folded under the unpackaged box 1a and positioned before and after the unsealed packaged product 1b is unloaded has its front and rear folded dimensions. Are the same, and the center of the overlapping portion W of the wrapping paper coincides with the center of the vertical dimension M.

Therefore, the sealed packaged product 1c (unpackaged box 1a)
If the height of the wrapping paper 2 is S and the height of the wrapping paper 2 is HM, then H
There is a relation of M = M + 2S + 2P, and therefore, the sealing portion interval P
Is the formula P = (HM−M−2S) / 2, and the sealed packaged product 1 input to the input unit 88 or read from the storage unit 87b
Based on the value of the vertical dimension M and the value of the height dimension S of the c (unpackaged box 1a), and the value of the wrapping paper vertical dimension HM read from the calculation or the storage unit 87b, the value of the sealing unit interval P is determined. It is calculated by the above equation.

The unloading overhead conveyor 15
The value of the wrapping paper vertical dimension HM When the wrapping paper guide 5a of the magazine 5 is aligned with the wrapping paper 2, the signal value of the potentiometer 89 becomes the dimensional value of the wrapping paper 2 (the value of the vertical dimension HM and the horizontal dimension). Value). * Paste number N of tape strips 66 as shown in FIG. 16 is 1
In the case of the operation unit 87c, the following two cases can be handled. First, based on the value of the input or stored first cut end side margin dimensions B1 and finally cut end side margin dimension B ₂ and lateral dimension L, and the first case the value of the tape piece length C is calculated. Then, based on the value of the input or stored tape piece length C and the transverse dimensions L, the value of the first cutting edge side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ is a second case that is calculated . However, in this case, a constant relationship between the first cut end side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ (e.g. B ₁ = Toka constant × B _2, B ₁ = a B ₂ relationships, etc.) Only when there is. As shown in FIGS. 17D and 17E, the value of the transport distance D (the transport amount of the tape piece) for transporting the tape piece 66 so as to correspond to the sealing surface 84 of the unsealed packaged product 1b is any of these. Also in the case, the above-mentioned equation D = K− (L / 2) + B
It is similarly calculated from ₂ + H. Note that the value of B ₂ in the formula in the second case the said calculated value.

The control unit 87a of the controller 87 includes a pulse oscillator and a pulse counter, and includes the drive motor 27 of the tape sticking device 11, the solenoid valves 40, 50, 56, and 82, and the packaging unit. The drive control of the drive motor 90 of the paper conveyance conveyor 8 and the drive motor 91 of the unloading overhead conveyor 15 is performed. The tape attaching device 11 will be described in the following description.

<Three tape pieces 66 on the unsealed package 1b
In the case of sticking> The timing chart schematically shown in FIG. 10 This timing chart shows a driving motor 91 (servo motor) for driving the unloading overhead conveyor 15.
And the endless suction belt 65 and the drive motor 27 (stepping motor) for the feeding roller 25, the feed roller actuation solenoid valve 40, the air nozzle actuation solenoid valve 50, the cutter actuation solenoid valve 56, and the suction chamber actuation in the above-mentioned tape sticking device 11. The operation signal timing of the solenoid valve 82 during one cycle time of the packaging machine is shown. here,
T _A and T _D are time periods during which the drive motor 27 is driven. During this time, the endless suction belt 65 has an A dimension (corresponding to the value of the transport pitch A between the tape pieces 66) and a D dimension (not yet). (Corresponding to the value of the transfer distance D for transferring the tape piece 66) so as to correspond to the sealing surface 84 on the side of the sealed packaged product 1b). T _C is the time during which the feed roller 39 is energized so that the feed roller 39 moves downward with respect to the feed roller operating solenoid valve 40 while the drive motor 27 is being driven.
Then, the feed roller 39 feeds the tape 45 on the roll 44 side by the C dimension (corresponding to the value of the tape piece length C).

The above control regarding the drive motor 27 and the feed roller operating solenoid valve 40 The control section 87a includes a pulse oscillator and a pulse counter, which control the drive motor 27 and the feed roller operating solenoid valve 40. That is, the number of pulses corresponding to the A-dimension movement amount and the D-dimension movement amount is calculated from the suction belt movement amount per pulse number, and the pulse counter is calculated after the drive motor 27 starts driving. Is counted, the drive motor 27 stops.

Similarly, the number of pulses corresponding to the C dimension is calculated from the amount of the tape supplied by the supply roller 25 per number of pulses. At the time when the drive motor 27 starts driving, the feed roller 39 moves downward and the feed roller 2
5, the feeding end 45a of the tape 45 is sandwiched, and the tape 45 can be fed. Drive motor 27
When the pulse counter counts the calculated number of pulses after the start of driving, a signal is sent to the feed roller operating solenoid valve 40, and the feed roller 39 moves upward and the tape 45
Is stopped.

* Operation for adhering three tape pieces 66 (see FIG. 13). Standby state shown in FIG. 13 (a). The feeding end 45a of the tape 45 on the roll 44 side is moved downward in the feed roller 39. And the feeding roller 25, and is in a state of protruding from the cutter 54 by a dimension C in the feeding direction.

Operation start state shown in FIG. 13B When the wrapping paper detection sensor 10 detects the wrapping paper 2 and the signal from the wrapping paper detection sensor 10 is input, the cutter operation electromagnetic valve 56 is moved downward by the cutter lower. An operation signal is output for a predetermined time. Therefore, the cutter 54 moves down and the feeding end 45a
Is cut to separate the first tape piece 66 having the C dimension.

A state shown in FIG. 13C A drive signal is output to the drive motor 27 a predetermined time after the cutter upward movement signal is output to the cutter operation solenoid valve 56 for a predetermined time. Then, as described above, C
When the number of pulses corresponding to the dimension is counted, a feed roller upward movement signal is output to the feed roller operating solenoid valve 40. Therefore, after the cutter 54 moves upward, the feeding roller 25 and the endless suction belt 65 rotate, and the feeding end 4
The feed roller 39 moves upward at the point when 5a comes out of the cutter 54 in the feeding direction by the dimension C. In consideration of the time difference between the output of the feed roller upward movement signal and the actual start of the upward movement of the feed roller 39, the number of counted pulses is set to be smaller than the value corresponding to the C dimension. .

The state shown in FIG. 13D The feed roller 25 and the endless suction belt 65 continue to rotate, but the feed end 45a is not fed because the feed roller 39 has moved upward. As described above, when the number of pulses corresponding to the dimension A is counted, the drive motor 2
The output of the drive signal to 7 is stopped. Accordingly, the first tape piece 66 is held and sent by the endless suction belt 65. When the right cut end of the first tape piece 66 reaches a position separated from the cutter 54 by the dimension A, the first tape piece 66 and the feed roller 25 endlessly move. The suction belt 65 stops.

State shown in FIG. 13E As described above, when the number of pulses corresponding to the dimension A is counted, a feed roller lowering signal is output to the feed roller operating solenoid valve 40, and the cutter is operated. The cutter lowering signal is output to the operating solenoid valve 56 for a predetermined time.
Accordingly, the feed roller 39 moves downward to pinch the feeding end 45a, and the cutter 54 moves downward to cut the feeding end 45a to separate the second tape piece 66 having the C dimension.

State shown in FIG. 13 (f) Control is performed in the same manner as the state shown in FIG. 13 (c). Therefore,
After the cutter 54 moves upward, the feed roller 25 and the endless suction belt 65 rotate, and the feed roller 39 moves upward when the feed end portion 45a comes out of the cutter 54 in the feeding direction by the dimension C. At this time, the first tape piece 66 and the second tape piece 66 are fed while the pitch dimension A is maintained.

State shown in FIG. 13 (g) Control is performed in the same manner as the state shown in FIG. 13 (d). Therefore,
The feed roller 25 and the endless suction belt 65 continue to rotate as they are, but the feed end 45a is not fed because the feed roller 39 is moving upward. The first tape piece 66 and the second tape piece 66 are held and sent by the endless suction belt 65 while maintaining the pitch dimension A, and the right cut end of the second tape piece 66 is separated from the cutter 54 by A dimension. , The feeding roller 25 and the endless suction belt 65 stop.

State shown in FIG. 13H Control is performed in the same manner as the state shown in FIG. Therefore,
The feed roller 39 moves down to hold the feeding end portion 45a, and the cutter 54 moves down to cut the feeding end portion 45a to separate the third tape piece 66 having the C dimension. Then, on the endless suction belt 65, the first tape piece 66, the second tape piece 66, and the third tape piece 66 having the cutting length C are suction-held at a pitch A.

State shown in FIG. 13 (i) Control is performed in the same manner as the state shown in FIG. 13 (c). Therefore,
After the cutter 54 moves upward, the feed roller 25 and the endless suction belt 65 rotate, and the feed roller 39 moves upward when the feed end portion 45a comes out of the cutter 54 in the feeding direction by the dimension C. At this time, each pitch dimension A between the first tape piece 66, the second tape piece 66, and the third tape piece 66
Sent while being kept.

The state shown in FIG. 13 (j) The feeding roller 25 and the endless suction belt 65 continue to rotate, but the feeding end 45a is not fed because the feeding roller 39 is moving upward. As described above, when the number of pulses corresponding to the D dimension is counted, the drive motor 2
The output of the drive signal to 7 is stopped. Therefore, the first tape piece 66, the second tape piece 66, and the third tape piece 66 are sent while being held by the endless suction belt 65, and the last cut end of the third tape piece 66 is separated from the cutter 54 by the D dimension. When the roller reaches the position, the feeding roller 25 and the endless suction belt 65 stop.

The state shown in FIG. 13 (k) The feed roller 39 moves down, sandwiches the feeding end 45a, and enters the standby state shown in FIG. 13 (a). Thereafter, when the output of the drive signal to the drive motor 91 of the unloading overhead conveyor 15 is stopped, a signal for moving the suction chamber to the suction chamber operating electromagnetic valve 82 is output. Therefore, when the attachment 15a of the carry-out overhead conveyor 15 transfers the unsealed packaged product 1b to the upper side of the tape attaching device 11 and stops, the suction chamber 68 moves upward,
The first tape piece 66, the second tape piece 66, and the third tape piece 66 held by the endless suction belt 65 are adhered to the free sealing edge 85 of the unsealed packaged product 1b.

When the next unwrapped box 1a is supplied and the wrapping paper detection sensor 10 confirms that the wrapping paper 2 has been sent, a predetermined time has elapsed after the suction chamber 68 was moved up. At this time, the operation from the standby state is started.

<Two pieces of tape 66 are added to the unsealed package 1b.
When three pieces of tape 6 are attached to the unsealed package 1b
13 (a) and 13 (b) described above in the case of sticking No. 6
The states shown in (c), (d), (e), (f), (j), and (k) are described in FIGS. 15 (a), (b), (c), and (d), respectively.
The description of the states shown in (e), (f), (g), and (h) applies mutatis mutandis. In this case, the third tape piece 66 in the description of the state shown in FIGS. 13J and 13K is replaced with the second tape piece 66 in the sticking operation of the two tape pieces 66, and the three tape pieces 66 are read. No description about the second tape piece 66 in the description of the sticking operation is made.

<One piece of tape 66 is added to the unsealed package 1b.
When three pieces of tape 6 are attached to the unsealed package 1b
13 (a) and 13 (b) described above in the case of sticking No. 6
The description of the states shown in (c), (j), and (k) applies mutatis mutandis to the description of the states shown in FIGS. 17 (a), (b), (c), (d), and (e), respectively. In this case, regarding the third tape piece 66 in the description of the state shown in FIGS.
First tape piece 6 in the attaching operation of one tape piece 66
6, the description of the first tape piece 66 and the second tape piece 66 in the description of the sticking operation of the three tape pieces 66 is omitted. <Characteristics of the present embodiment> * The function of the tape feeding unit 17, the tape cutting unit 18, the tape conveying unit 19, and the tape pressing unit 20 in the tape adhering device 11 is used to seal the unsealed package 1b with the sealing surface 84. One piece of tape 66 against the free edge 85
Needless to say, a plurality of tape pieces 66 can be securely attached.

The margin B ₁ at the first cut end and the margin B ₂ at the last cut end and the length C of the tape piece (the longitudinal dimension of the tape piece 66) can be arbitrarily set by the input section 88.

[0085] * said be lateral dimension L of the first cutting edge side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ or said unsealed package 1b is changed, or even they are changed together, the tape when the piece 66 is attached may be the first cut end side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ always set dimensions.

* The number N of the tape pieces 66 to be attached can be automatically changed according to the lateral dimension L of the unsealed package 1b. Further, the number N of the pasted pieces can be arbitrarily changed by the input section 88.

When a plurality of tape pieces 66 are to be attached, the first cut end side margin dimension B ₁ and the last cut end side margin dimension B ₂ , the length of the tape piece C, the number N of pasted tape pieces 66, and According to the lateral dimension L of the sealed packaged product 1b, the sticking pitch A between the tape pieces 66 (transport pitch).
Can be set automatically. Accordingly, if the joining number N of the tape piece 66 is automatically changed according to the lateral dimension L as described above, once the first cut end side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ or tapes If the piece length C is set, the sticking pitch A (transport pitch) between the tape pieces 66 can be automatically set according to the lateral dimension L.

* When a single piece of tape 66 is to be attached, the above-mentioned marginal dimension B ₁ at the first cut end side and the marginal dimension B ₂ at the last cut end side and the lateral dimension L of the unsealed packaged product 1b are The length C of the tape piece can be changed. Therefore, even if the lateral dimension L is changed, the tape piece length C
Is automatically set, when the tape piece 66 is bonded may be the first cut end side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ always set dimensions.

* When a single piece of tape 66 is attached, the margin B ₁ at the first cut end and the last cut end are determined according to the length C of the tape piece and the lateral dimension L of the unsealed package 1b. It is changed dimensional margin B _2, so that the first cutting edge side margin dimensions B ₁ and the last cutting edge side margin dimension B ₂ after the change, pasted tape piece 66 is carried out. Therefore, even if the lateral dimension L is changed, the tape piece 66 can be automatically attached to a desired position.

* Even if the position of the free sealing edge 85 is changed on the sealing surface 84 of the unsealed packaged product 1b, the tape piece 66 must be securely adhered to the changed free sealing edge 85. Can be.

The suction chamber 6 which also functions as the endless suction belt 65 and the suction chamber 68 in the tape transporting means 19 and also serves as a pressing portion of the tape pressing means 20.
By the function of 8, the tape piece 66 can be securely adhered to the free sealing edge 85 at the sealing surface 84 of the unsealed packaged product 1b.

[Interpretation of main terms used in the above embodiment] * Sealing free edge 85 In the overwrapping packaging for folding a wrapping paper made of paper, film or the like to package a box-shaped (rectangular) article, In a state where a plurality of flap-shaped pieces formed by the wrapping paper generated in the folding process are folded and overlapped to close one side of the article, the free edge of the outermost flap-shaped piece is sealed with a free edge 85. Called. In this state, the tape with no tape piece 66 attached to the free sealing edge 85 is referred to as an unsealed packaged product 1b, and the one with the tape piece 66 adhered thereto is a sealed packaged product 1c. Called.

* Sealing surface 84 Of each surface of unsealed packaged product 1b or sealed packaged product 1c,
It refers to the entire surface having the sealing free edge 85. The number of the sealing surface 84 may be plural.

* First cut end and last cut end of the tape piece 66 When the number N of pieces to be pasted is plural, the feeding side of the tape piece 66 separated first is referred to as the first cut end, and finally separated. The opposite side to the feeding direction of the tape piece 66 is referred to as the last cut end. When the number of pasted N is 1,
Of the opposing ends of one piece of tape 66, the side in the feeding direction is called the first cut end, and the side opposite to the feeding direction is called the last cut end.

* Longitudinal direction of the tape piece 66 A direction perpendicular to the width direction of the web-shaped tape (feeding direction)
Say. Even if the cut length of the tape piece 66 is shorter than the width direction dimension, it is called the longitudinal direction.

* Width direction of tape piece 66 A direction (direction orthogonal to the feeding direction) that coincides with the width direction of the web-shaped tape.

* Each dimension M, L, S, B ₁ , B described above
₂ , C, etc. are names including not only real values but also data corresponding to the values. [Other Embodiments] In addition to the above-described embodiments, the present invention may be configured as shown by * below.

* Three pieces of tape 6 on the unsealed package 1b
13 (c) and 13 (f) described above in the case of sticking No. 6
In the state shown in (i), the feed roller 39 is moved upward so that the tape 45 is not fed. Instead of this configuration, the feed roller 25 is independently rotated by a drive motor different from the drive motor 27 that rotates the endless suction belt 65, or the drive motor is used to drive the endless suction belt 65 and the feed roller 25. Even when the drive roller 27 is also used, if the drive rollers 39 are driven independently of each other via the clutch, it is not necessary to move the feed roller 39 upward and separate it from the feed roller 25.

* Since the tape piece 66 is held by suction,
The sealing surface 84 of the object to be sealed is not limited to the lower surface (bottom surface) of the object to be sealed. For example, it may be the upper surface of the object to be sealed. * The object to be sealed is not limited to the unsealed packaged product 1b with the wrapping paper 2. For example, a carton case may be used. Among these box-shaped containers such as cartons and cases, which have a plurality of flaps for closing the opening portion, those which overlap the flaps to seal the opening portion are located on the outermost side when they are overlapped. The free edge of the flap is the sealing free edge, and for the flaps which oppose the free edges of the opposing flaps to close the opening, the free edge to be joined is the sealing free edge. Further, in any case, the tape piece is not attached to the free sealing edge in a state where the flap has closed the opening portion, the unsealed packaged product, and the tape piece is attached, It becomes a sealed package. In addition, of each surface of the unsealed packaged product or the sealed packaged product, the surface having the above-mentioned free sealing edge is the sealing surface.

* The number of tape attachment points may be four or more. Also in this case, the tape attaching operation is the same as in the case described above. [Other technical ideas] The technical ideas (other than the claims) that can be grasped from each embodiment are described together with the effects.

(A) In claim 15, the pressing portion 68 of the tape piece pressing means 20 is also used by the suction section 68 of the tape piece conveying means 19. Therefore, the number of parts is reduced and the structure is simplified.

(B) In any one of claims 1 to 15 or (a), the tape feeding means 17 includes a tape roll holding section 43 for attaching a tape roll 44, A roller (feeding roller 25, feed roller 39) for holding the feeding end 45a was provided as a tape holding unit for holding and feeding the feeding end 45a of the drawn-out tape 45.

(C) In any one of claims 1 to 15, or (a) or (b), the tape feeding means 17 holds and feeds the feeding end 45a of the tape 45. In the vicinity of the tape holding unit (the feeding roller 25 and the feeding roller 39), an air outlet 48a for blowing air to the feeding end 45a of the tape 45 is provided. Therefore, it is possible to prevent the portion that becomes the feeding end portion 45a from being wound around the tape holding portion after cutting.

(D) In any one of claims 1 to 15, or (a), (b), or (c), the tape cutting means 18 may be configured to remove the tape 45 from the feeding end 45a. A cutting and holding section 55 for holding the feeding end 45a of the tape 45 on the tape feeding side of the tape holding section (the feeding roller 25 and the feed roller 39) of the tape feeding means 17 for holding and feeding the tape. And a cutter 54 for cutting the feeding end portion 45a of the tape 45 between the tape holding portion (the feeding roller 25 and the feeding roller 39). Therefore, the feeding end 45a of the tape 45 can be reliably cut.

(E) In any one of claims 1 to 15, or (a) or (b) or (c) or (d), the tape piece 66
Is adhered along the extending direction of the free sealing edge 85 on the sealing surface 84 of the unsealed package (unsealed package 1b). That is, the longitudinal direction of the tape piece 66 in the attached state substantially coincides with the extending direction of the free sealing edge 85 of the sealed package (sealed package 1c). Therefore, the tape piece 66 is sealed in the unsealed package (unsealed package 1b) as compared with the case where the longitudinal direction of the tape piece is perpendicular to the extending direction of the sealing free edge 85. It can be firmly adhered to the stop free edge 85 over a wider range.

[0106]

According to the tape sticking apparatus (11) for a packaging machine according to the first aspect of the present invention, each means (17, 18, 1) is provided.
Due to the function of (9, 20), not only one tape piece (66) but also a plurality of tape pieces on the sealing surface (84) of the unsealed package (1b) with respect to the free sealing edge (85). (66)
Can be stuck securely.

According to the tape sticking apparatus (11) according to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, the first cut end margin (B ₁ ) and the last cut end margin (B ₂ ) can always be set dimensions.

According to the tape sticking apparatus (11) according to the third aspect of the present invention, in addition to the effects of the second aspect of the present invention, the first cut end margin (B ₁ ) and the last cut end margin (B ₂ ) can be arbitrarily set by the input section (88).

According to the tape sticking apparatus (11) according to the fourth aspect of the present invention, in addition to the effects of the first, second or third aspect of the present invention, the sealing surface of the unsealed package (1b) is provided. Even if the lateral dimension (L) of (84) changes, the first cut end margin (B ₁ ) and the last cut end margin (B ₂ ) can always be set to the set dimensions.

According to the tape sticking apparatus (11) according to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the unsealed package (1b)
The lateral dimension (L) of the sealing surface (84) can be set by the input unit (88).

According to the tape sticking apparatus (11) according to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, in addition to the longitudinal direction of the tape piece (66). The dimension (C) can be arbitrarily set by the input section (88).

According to the tape sticking device (11) according to the invention of claim 7, in addition to the effect of the invention of any one of claims 1 to 6, the unsealed package (1b)
Of the tape (6) according to the lateral dimension (L) of the sealing surface (84) of the tape.
6) The number (N) can be automatically changed.

According to the tape sticking apparatus (11) according to the invention of claim 8, in addition to the effect of the invention of any one of claims 1 to 7, the number of tape pieces (66) ( N) can be arbitrarily changed by the input unit (88).

According to the tape sticking apparatus (11) of the ninth aspect, in addition to the effects of the seventh or eighth aspect, even if the number (N) of the tape pieces (66) is changed. Once the first cut end margin (B ₁ ), the last cut end margin (B ₂ ), and the longitudinal dimension (C) of the tape piece (66) are set, the unsealed package (1b) Can be set even if the lateral dimension (L) of the sealing surface (84) is changed.

According to the tape sticking apparatus (11) of the tenth aspect, in addition to the effect of the invention of any one of the first to fifth aspects, one tape piece (6
6), when the lateral dimension (L) of the sealing surface (84) of the unsealed package (1b) is changed, the tape piece (6)
When the longitudinal dimension (C) of 6) is automatically set and the tape piece (66) is attached, the first cut end margin (B ₁ ) and the last cut end margin (B ₂₎ ) Can always be set dimensions.

A tape sticking apparatus according to the eleventh aspect of the present invention.
According to (11), in addition to the effect of the invention of claim 1, one sheet
When a piece of tape (66) is attached, the unsealed package
The lateral dimension (L) of the sealing surface (84) of (1b) has been changed.
Also, the margin at the first cut end side (B ₁) And the last cut end side
Extra dimensions (B_Two) Is automatically set and the tape piece (66)
Is attached first, the margin on the cut end side (B₁)
And the margin at the last cut end (B_Two) To this set dimension
Can be law.

According to the tape sticking apparatus (11) according to the twelfth aspect of the present invention, in addition to the effects of the eleventh aspect, the lateral dimension (L) of the sealing surface (84) of the unsealed package (1b) is improved. ) Can be arbitrarily set by the input section (88).

According to the tape sticking apparatus (11) of the thirteenth aspect, in addition to the effects of the eleventh or twelfth aspects, the longitudinal dimension (C) of the tape piece (66) can be improved.
Can be arbitrarily set by the input unit (88).

According to the tape sticking apparatus (11) according to the fourteenth aspect of the present invention, in addition to the effect of any one of the first to thirteenth aspects, the unsealed package (1)
b) Even if the width direction position of the tape piece (66) is changed at the sealing free edge (85) on the sealing surface (84), the changed sealing free edge (85) The tape piece (66) can be stuck securely.

According to the tape sticking apparatus (11) according to the invention of claim 15, in addition to the effect of the invention of any one of claims 1 to 14, the tape transport means (1)
9) Endless suction belt (65) and suction section (6)
8) and the pressing portion (6) of the tape pressing means (20).
The function (8) allows the sealing surface (8) of the unsealed package (1b) to be closed.
The tape piece (66) can be securely adhered to the sealing free edge (85) of 4).

[Brief description of the drawings]

FIG. 1 is a schematic side view showing the entire packaging machine.

FIG. 2 is a view on arrow X of FIG. 1 showing the tape attaching device.

FIG. 3 is a partially enlarged view of FIG. 2;

FIG. 4 is a partial sectional view taken along line YY of FIG. 2;

5A is a partial cross-sectional view taken along line Z ₁ -Z ₁ of FIG. 4, and FIG. 5B is a partially enlarged view of FIG.

FIG. 6 is a partial sectional view taken along line Z ₂ -Z ₂ of FIG. 4;

FIG. 7 is an electric block circuit diagram.

FIG. 8A is a bottom view of a sealed package to which three pieces of tape are adhered, and FIG. 8B is an explanatory diagram in a case where a sealing portion interval of the sealed package is set.

FIG. 9 is an explanatory diagram of stop position control of a carry-out overhead conveyor.

FIG. 10 is a timing chart in a case where three tape pieces are attached to an unsealed packaged product.

FIG. 11 is a perspective view showing a step of folding a wrapping paper for an unwrapped box.

FIG. 12 is a bottom view of the sealed packaged product to which three pieces of tape are attached.

FIG. 13 is a process diagram of attaching three tape pieces to an unsealed packaged product.

FIG. 14 is a bottom view of the sealed packaged product to which two pieces of tape are adhered.

FIG. 15 is a process diagram of attaching two tape pieces to an unsealed packaged product.

FIG. 16 is a bottom view of the sealed packaged product to which one piece of tape is adhered.

FIG. 17 is a process diagram of attaching one tape piece to an unsealed packaged product.

[Explanation of symbols]

1b: unsealed package (unsealed package), 1c: sealed package (sealed package), 2 ... wrapping paper, 11: tape sticking device, 14: lower folding plate (moving mounting table) , 14a: window (notch), 15: unloading overhead conveyor (transporting means), 17: tape feeding means, 18: tape cutting means, 19: tape piece conveying means, 20: tape piece pressing means, 45: tape 45a: feeding end portion, 65: suction belt, 65a: tape piece conveying surface, 66: tape piece, 66
a: Tape piece adhesive surface, 66b: Tape piece back face, 67: Suction hole, 68: Suction chamber (suction unit, pressing unit), 69 ...
Suction port, 84: sealing surface, 85: free sealing edge, 87a ...
Control unit, 88: input unit, 87c: arithmetic unit, 87d: determination unit, R: stop position, B ₁ : first cut end margin, B ₂
… Last dimension at the cut end side, L… Length of unsealed packaged product (width of sealing surface), D… Transport distance of tape piece (tape transport distance), C… Length of tape piece (longitudinal dimension of tape piece), N
… Number of tape pieces to be pasted, A… Transport pitch (pasting pitch),
P: interval between sealing portions.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-55-134029 (JP, A) JP-A-3-113348 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65B 51/06 B65B 11/16

Claims (15)

(57) [Claims] 1. A sealing surface (84) of an unsealed package (1b).
In a packaging machine provided with a tape sticking device (11) for sticking a tape piece (66) to a sealing free edge (85), a set dimension is obtained by holding a feeding end (45a) of a tape (45). (C), a tape feeding means (17) for feeding the tape (45) fed by the tape feeding means (17) to a set size (C), and a tape cutting means (18). 18) The tape piece (66) cut and separated by suction from the back surface (66b) side of the adhesive surface (66a) is held by suction and corresponds to the sealing surface (84) of the unsealed package (1b). Tape transport means (1) having an endless transport body (65) for transporting to a position
9) and a tape piece (66) in the tape piece conveying means (19).
And the unsealed package against the sealing free edge of (1b) (85) unsealed packaging tape piece pressing means for attaching the sealed surface of the (1b) (84) (20 ), the non Affixed to the sealing surface (84) of the sealed package (1b)
The number (N) of the tape pieces (66) can be switched.
A tape sticking device in a packaging machine, comprising a controller (87) . 2. An end of one end edge of the tape piece (66), which is located on the sealing surface (84) of the sealing package (1c) and is opposed to both ends in the longitudinal direction of the tape piece (66), and the first of the tape piece (66). Finally the cut end side margin dimension (B ₂₎ is respectively set between the last cutting edge of the first cutting edge side margin dimension (B ₁₎ and the other edge and the tape piece (66) between the cut end of the The tape sticking device in a packaging machine according to claim 1, further comprising a control unit (87a) for controlling the driving of the tape piece conveying means (19) so that the value becomes a value. 3. An input section (88) for inputting a set value of a first cut end margin (B ₁ ) and a set value of a last cut end margin (B ₂ ). Item 3. A tape sticking device in the packaging machine according to Item 2. 4. A tape according to a value of a lateral dimension (L) between both end edges which are opposed to each other on both sides in a longitudinal direction of a tape piece (66) on a sealing surface (84) of a sealing package (1c). The tape piece (66) is unsealed by the one-way conveying means (19).
4. The apparatus according to claim 1, further comprising: an operation section (87 c) that calculates an amount (D) of transporting the tape piece to the position corresponding to the sealing surface (84) of (b). 5. A tape sticking device in the packaging machine described in the above. 5. An input section for inputting a value of a lateral dimension (L) between both opposing edges on the sealing surface (84) of the sealing package (1c) on both sides in the longitudinal direction of the tape piece (66). The tape sticking device in the packaging machine according to any one of claims 1 to 4, further comprising (88). 6. A longitudinal dimension (C) of the tape piece (66).
The tape sticking apparatus in a packaging machine according to any one of claims 1 to 5, further comprising an input unit (88) for inputting a set value of the tape. 7. The tape according to the value of the lateral dimension (L) between both end edges facing each other on both sides in the longitudinal direction of the tape piece (66) on the sealing surface (84) of the sealing package (1c). Piece (66)
The tape sticking device in the packaging machine according to any one of claims 1 to 6, further comprising a determination unit (87d) for selecting the number (N) of the tapes. 8. The packaging machine according to claim 1, further comprising an input section (88) for inputting the number (N) of the tape pieces (66). Tape sticking device. 9. When the number (N) of the tape pieces (66) is plural, the transport pitch (A) between the tape pieces (66) arranged by the tape piece transporting means (19) is determined by the sealing package. First cutting between one of the opposite edges on the sealing surface (84) of (1c) on both sides in the longitudinal direction of the tape piece (66) and the first cut end of the tape piece (66) The set value of the margin on the end side (B1) and the set value of the margin on the last cut end side (B2) between the other edge and the last cut end of the tape piece (66); and the set value of the longitudinal dimension (C), the number of tape strips (66) (N), in the blockade surface of the sealing package (1c) (84) in the longitudinal direction both sides of the tape piece (66) 8. An arithmetic unit (87c) for performing an arithmetic operation in accordance with a value of a lateral dimension (L) between opposite end edges. Other tape adhering device in a packaging machine according to claim 8. 10. When the number (N) of the tape pieces (66) is one, the tape pieces (66) are located on both sides in the longitudinal direction of the tape piece (66) on the sealing surface (84) of the sealing package (1c). The set value of the margin (B ₁ ) on the first cut end side between one of the opposite end edges and the first cut end of the tape piece (66), and the other end and the tape piece (66) The set value of the margin (B ₂ ) of the last cut end between the last cut end and the set value of the marginal size (B ₂ ) on the sealing surface (84) of the sealing package (1c) on both sides in the longitudinal direction of the tape piece (66) 2. The computer according to claim 1, further comprising a calculation unit that calculates a longitudinal dimension of the tape piece in accordance with a value of a lateral dimension between the opposite end edges. 3. A tape sticking device in the packaging machine according to claim 5. 11. When the number (N) of the tape pieces (66) is one, the tape pieces (66) are located on the sealing surface (84) of the sealing package (1c) on both sides in the longitudinal direction of the tape pieces (66). The first cutting edge margin (B ₁ ) between one of the opposite end edges and the first cutting edge of the tape piece (66), and the last cutting of the other edge and the tape piece (66) The length (B ₂ ) of the last cut end side between the _two ends is determined by the length (C) of the tape piece (66) in the longitudinal direction (C) and the tape piece (84) on the sealing surface (84) of the sealing package (1c). 66) in accordance with the value of the lateral dimension (L) between the opposing edges on both sides in the longitudinal direction, and the first cut end margin (B ₁ ) and the last cut end margin (B) as ₂₎ becomes the calculated value respectively, unsealed package a tape piece (66) by the tape strip transport means (19) ( Calculator for calculating a tape piece transport amount (D) for conveying to a position corresponding to the sealed surface (84) of b) (87
The tape sticking apparatus in the packaging machine according to claim 1, further comprising c). 12. The sealing surface (84) of the sealed package (1c).
The tape sticking device in a packaging machine according to claim 11, further comprising an input unit (88) for inputting a value of a lateral dimension (L) of the packaging machine. 13. A tape in a packaging machine according to claim 11, further comprising an input section (88) for inputting a set value of a longitudinal dimension (C) of the tape piece (66). Sticking device. 14. The unsealed package (1b) is placed with the sealing surface (84) facing downward, and moved in the width direction of the tape piece (66) to above the tape piece conveying means (19). A movable mounting table (14) having a notch (14a) for allowing upward movement of the tape piece pressing means (20) at a position corresponding to the sealing surface (84) of the unsealed package (1b); The sealing free edge (85) of the sealing surface (84) is a tape piece (6).
Unsealed package (1) up to the stop position (R) corresponding to 6)
transfer means (15) for transferring b) in the width direction of the tape piece (66), and opposed to each other on both sides in the width direction of the tape piece (66) on the sealing surface (84) of the unsealed package (1b). Of the sealing portion (P) from one edge to the sealing free edge (85) of the both edges to be sealed.
Or a calculation unit (87c) for calculating the movement amount of the transfer means (15) by which the unsealed package (1b) is transferred to the stop position (R) according to the value of MP). A tape sticking device in a packaging machine according to any one of claims 1 to 13, characterized in that: 15. A tape piece transport means (19) for transporting a tape piece (66) on a transport surface (65a) on its back surface (66b) side.
An endless suction belt (65) as an endless conveyance body that is carried on and conveyed on a tape, and a suction unit (68) provided along a tape piece conveyance surface (65a) of the endless suction belt (65); The endless suction belt (65) has a tape piece (6).
A suction hole (67) for sucking the rear surface (66b) side of 6) is arranged in the longitudinal direction, and the suction portion (68) has a suction function for the suction hole (67) of the endless suction belt (65). A suction port (69) for applying the tape is provided, and the tape piece pressing means (20) seals the tape piece conveying surface (65a) of the endless suction belt (65) with the sealing surface (84) of the unsealed package (1b). Pressing part (68) to press against
The tape sticking device in the packaging machine according to any one of claims 1 to 14, comprising: