JP3113939B2 - Packaging device and packaging method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus and a packaging method, and more particularly to a packaging apparatus and a packaging method for packaging an article to be packaged such as a piece of confectionery having a rounded contour as a whole.

[0002]

2. Description of the Related Art As shown in FIG. 7, when a packaged object such as a piece of confectionery called a flat block-shaped granulated gum having an elliptical end face is packaged, a rectangular parallelepiped packaged product (for example, caramel-shaped) is used. Granulation) may be applied as it is.
FIG. 11 shows a packaging order in the case of packaging an article as shown in FIG. 7 by a technique for packaging an article to be packaged in a rectangular parallelepiped, and FIG. 1 shows a schematic structure.

In this device, catchers (11) and (11) each including a pair of holding claws (13) and (13) are arranged at a predetermined pitch on the outer periphery of a turret (12) rotating in a vertical plane. . Below the turret (12), front and rear folding guides (16a) and (16b) facing the paper surface of FIG. 12 in the front and rear direction are arranged, and a pair of horizontal Bending guides (17a) and (17b) are provided to face each other.

[0004] FIG. 13 is a side folding guide (17a) (17b)
FIG. 4 is a perspective view showing an arrangement relationship between one of the front and rear folding guides (16a), and each lateral folding guide (17a) (17b) is a rectangular plate.
The triangular plates (171a) and (171b) are bent from the vicinity of the upper portions of (170a) and (170b), and the triangular plates (171a) and (171b) face each other at a predetermined interval. And the triangular plate (171a) (171b)
A front / rear bending guide (16a) is located in the lower adjacent part of the front side.

Next, the operation of the packaging device will be described. The turret (12) rotates intermittently, whereby each catcher (11) (11) moves clockwise from the first station (ST1) at the lowest position to the second station (ST2). It is designed to move intermittently. The packaged object (21) and the wrapping paper (22) facing it from above are a horizontal folding guide.
(17a) and (17b) and the front and rear folding guides (16a) and (16b), when appropriately supplied below the arrangement portion, the wrapping paper (22) and the packaged object (21) face up and down, and FIG. To the first state (A). Next, the to-be-packaged object (21) and the wrapping paper (22) are integrally clamped from above and below by clamping bars (24) and (25).
4) When (25) is raised, first, the horizontal folding guide (17a) (1
7b), the both ends of the wrapping paper (22) are bent at the lower end, and as shown in the second state (B) of the same figure, the first and second bending margins (30a) (3)
0b) is bent along the article to be packaged (21). The third and fourth bending margins (31a) and (31b) between the first and second bending margins (30a) and (30b) are bent by front and rear bending guides (16a) and (16b). 2 states (B)
As shown in the figure, both end surfaces (213) in the longitudinal direction of the packaged object (21)
(213) is in a state along the third and fourth bending allowances (31a) and (31b).

[0006] Further, when the packaged object (21) and the wrapping paper (22) held by the holding rods (24) and (25) rise, the triangular plates (171a) and (171b) are raised.
The fifth and sixth bending allowances (32a) and (32b) are bent by the guiding action of the lower inclined sides (172a) and (172b).
To the third state (C). Then, in this state, the packaged item (2
1) and wrapping paper (22) are catchers in the first station (ST1)
(11) Ascend to the part.

Then, the article to be packaged (21) and the wrapping paper (22) are clamped by the claws (13) and (13) of the catcher (11).
The turret (12) rotates by one pitch and the catcher (1
1) arrives at the second station (ST2). Then, in the second station (ST2), the pressing plate (27) reciprocatingly moving in the rotation direction of the turret (12) causes the seventh bent piece (33).
a) is bent into the fourth state (D). Next, when the catcher (11) starts to move toward the third station (ST3), the eighth bending margin (33b) is bent by the fixed guide plate (28) provided in the moving area. It becomes 5 state (E).

When the catcher (11) reaches the third station (ST3), the reciprocating plate (29) moves in the front-rear direction with respect to the plane of FIG.
The bending allowances (34a) and (34b) are bent to form the sixth
State (F). Thereafter, the ninth and tenth bending margins (34a) and (34b) bent at the third station (ST3) become the fourth.
In the station (ST4), the wrapping paper (22) is heated and pressed by the heating plate (20), whereby the wrapping paper (22) is stabilized in a folded state, and the wrapping operation is completed.

[0009]

However, the above-mentioned conventional packaging apparatus is originally applied to the packaging of a rectangular parallelepiped article (21) in which each corner is formed at a right angle. As shown in FIG. 7, when the present invention is applied to the packaging of a packaged object (21) in which the corner (214) has an arc shape, the corner (2
14) Wrinkles are formed on the surface of the wrapping paper in the vicinity or the ninth and tenth bending margins (34a) and (34b) which are finally folded, and the ninth and tenth bending margins (34a) and (34b) There is a problem in that the shape becomes uneven and the packaging state cannot be finished cleanly.

The above problem will be described in more detail. FIG.
FIG. 9 is a partially enlarged perspective view of a state immediately before folding the fifth and sixth bending margins (32a) and (32b) on the longitudinal end surface (213) of the packaged object (21). In the figure, the item to be packaged (21)
When the wrapping paper (22) is moved upward, the fifth
Bending base end (227) of sixth bending allowance (32a) (32b)
(A region connecting the fifth and sixth bending allowances (32a) and (32b) to the third bending allowance (31a)) is a triangular plate (171a) in the horizontal bending guides (17a) and (17b) as shown in FIG. It moves in the gap (174) between the inner surface of the bent corner portion (171b) and the article to be packaged (21).

However, as shown in FIG.
If each corner (214) of (21) is formed in an arc shape, it is formed at a right angle (the corner (21)
4) is along the inner surfaces of the bent corners of the triangular plates (171a, 171b)). Therefore, when the corner portion (214) of the end surface (213) of the packaged object (21) is formed at a right angle (when the gap (174) is small).
In the meantime, the wrapping paper (22) also bends at a right angle along the right-angled corner (214), but if a large gap (174) is formed as shown in FIG. The wrapping paper (22) bends irregularly, thereby causing the end face of the packaged object (21) to be bent.
(213) Wrinkles are formed on the surface of the wrapping paper (22) in the vicinity. Also, if the wrapping paper (22) bends irregularly in the gap (174),
Triangular ninth and tenth bending allowances (3
4a) and (34b) (see the fifth state (E) in FIG. 11), wrinkles are formed, and the shapes of the ninth and tenth bending allowances (34a) and (34b) become irregular. The packaging condition is not beautiful.

As described above, in the above-mentioned conventional apparatus, a rounded packaged object (21) having an arc-shaped corner portion is used by using a packaging apparatus as shown in FIG. 11 for packaging a rectangular parallelepiped packaged product (21).
Therefore, the article to be packaged (21) cannot be neatly packaged. The present invention has been made in view of the above points,
It is an object of the present invention to make it possible to cleanly package an object to be packaged (21) having an overall contour shape that is round and has a rounded corner.

[0013]

Means for Solving the Problems The technical means of the first aspect of the present invention for solving the above-mentioned problem is that "a plurality of catchers (21) which integrally hold a packaged object (21) and a wrapping paper (22) are provided. A rotary transfer device (42) radially mounted at an equal pitch around a turret (40) intermittently rotating, and an inner peripheral surface formed in a cylindrical shape so that the catcher (41) moves while approaching. A fixed guide frame (61) that covers the outer periphery of the rotary transfer device (42),
An advancing / retracting plate that bends the lower part of the first folding allowance (80a) of the wrapping paper (22) covering the wrapped object (21) sandwiched by the catcher (41) toward the lower surface side of the wrapped object (21) by moving forward. 59) and the lower part of the second folding allowance (80b) of the wrapping paper (22) covering the packaged object (21) sandwiched by the catcher (41) on the inner peripheral surface thereof by the rotation of the turret (40). Along with the fixed guide frame (61) bent beneath the article to be packaged (21), a wrapping paper (22) is wound around the article to be packaged (21) in a tubular shape to have a predetermined length. Wrapping paper winding means for making the end (229) project from the article to be packaged (21), and two opposing portions (101) on the outer periphery of each of the tubular ends (229) and (229) Gusset folding means (6) for forming gusset folds (a) and (a) into which gusset folds are inserted by pushing the (102) in a direction approaching each other.
And press the respective gusset folded parts (a) and (a) to press the parts (a)
(a) a press device (7) for forming a flat state, and each of the gusset folded portions (a) and (a) formed by the press device (7) are inclined by rotating the turret (40). (682) A fixed guide plate (60) (60) guided by the (682) and bent upright, and each bent gusset folded portion (a) (a) is bent at its distal end (761) (761). ) Are arranged in the direction of approach to each other by moving the reciprocating plate (76), (76), each gusset folded part
and (a) folding means for folding (a) on the trunk side of the packaged item (21). "

According to the above technical means, when the wrapping paper (22) is wrapped in a tubular shape around the outer periphery of the wrapped object (21), the end of the cylindrical shape is projected from the wrapped object (21). Become. Then, the outer periphery of the protruding cylindrical end portion facing each other 2
Gazette fold is made by pushing two parts in the direction of approach. In other words, the two parts are deformed so as to be picked and gusset folds are formed. Then, wrapping paper
Of the cylindrical ends of (22), the base ends (the portions adjacent to the end corners of the to-be-packaged (21)) of the two parts which are brought close to each other so as to be pinched are the same as those of the to-be-packaged (21). The wrapping paper (22) is bent so as to follow the shape of the corner at the end, and even if the corner of the article to be packaged (21) is formed in an arc, the wrapping paper (22) is tightly adhered to the arc. You. As a result, wrinkles are less likely to be generated on the surface of the wrapping paper (22) in the vicinity of the circular corner of the article (21).

When the gusset is folded,
The width of the two portions opposing each other is reduced by the amount of pushing in. Next, when the gusset folded portion is folded on the surface side of the article to be packaged (21), the packaging is completed. Also, since the gusset-folded portion is pinched by the press device and the portion is hammered by this, there is little fear that the wrapping paper (22) elastically returns to the shape before gusset-folding due to the elasticity of the wrapping paper material. Become. On the other hand, the technical means of the invention of claim 2 is that "the packaged object (21) covered with the wrapping paper (22) in the first station of the packaging device (ST1) is intermittently rotated by the turret (40). With the attached catcher (41), the wrapping paper (22) is clamped from the first and second folding margins (80a) and (80b) side, and the advancing / retreating plate (59) is advanced in this clamped state, and the first folding margin ( 80
After folding the lower part of a) toward the lower surface side of the packaged object (21), the turret (40) is rotated by one pitch to
(21) to the second station (ST2), and at the time of this transfer, along the inner peripheral surface of the fixed guide frame (61) covering the outer periphery of the rotary transfer device (42) having the catcher (41). The lower part of the second folding allowance (80b) is bent to the lower side of the article to be packaged (21), and a wrapping paper (22) is wound around the outer periphery of the body of the article to be packaged (21) in a tubular shape, and the turret (40) Is rotated by one pitch to transfer the article to be packaged (21) to the third station (ST3), and at this third station (ST3), the concave portion whose width increases toward the open portions (641) (641) (640) The wrapping paper (22) by a gusset folding device (6) that enables a pair of gusset folding plates (64) and (65) formed with (640) to move toward and away from each other.
Gazette folds (a) and (a) are formed by folding in the direction of approaching two parts (101) and (102), which are the outer periphery of each cylindrical end (229) (229) and approach each other, The turret (4
0) is rotated by one pitch to move the packaged object (21) to the fourth position.
To the station (ST4).
In (4), a pressing device (7) including four press rods (71) (71) (72) (72) is used to press each of the press rods (71) (71) (72) Gazette folded part (a) (a)
(a) Kneading (a) in a flat state, rotating the turret (40), and installing a pair of fixed guide plates opposed to each other at an interval (L3) substantially equal to the length of the packaged object (21). (60) When the object to be packaged (21) enters the inside of the (60), the gusseted folded portions (a) and (a) of the habits are narrow portions of the fixed guide plates (60) and (60). (680) is guided by the inclined portion (682) connected to the wide portion (681) and bends and rises at that portion, and the packaged object (21) is moved to the fifth station (S
(T5), the fifth station (ST5) moves the pair of reciprocating plates (76) (76) approachable and releasable in the fifth station (ST5), and moves the pair of reciprocating plates (76) (76) at the tip bending portions (761) of the reciprocating plates (76) (76). Each of the bent gusset folded portions (a) and (a) is folded toward the body of the packaged object (21), and the turret (40) is rotated by one pitch so that the packaged item (21) is in the second position. Transfer to 6 stations (ST6)
In the sixth station (ST6), the folded gusset folded portions (a) and (a) are pressed with a heating plate (20) to stabilize the folded wrapping paper (22) in the folded state. Method ”.

[0016]

As described above, according to the present invention,
Since the surface of the wrapping paper (22) in the vicinity of the arc-shaped corner portion of the article to be packaged (21) is hardly wrinkled, a clean and good quality packaging state can be ensured. The wrapping paper (22) wound in a cylindrical shape is the
When the tubular end protruding from (21) is folded wide without gusset folding, the tip of the folded portion naturally expands after the packaging is completed due to the elasticity of the wrapping paper material, which causes obstacles such as later packing. Become. In contrast, according to the first aspect of the present invention, since the width of the cylindrical end is reduced by gusset folding, the width of the distal end of the end is reduced, and the distal end is compactly folded. can do. Therefore, the tip portion is unlikely to be an obstacle for later packing or the like.

Also, the wrapping paper (2
Since there is little fear that the cylindrical end of (2) elastically returns to the shape before the gusset folding, there is little fear that the packaging state will be disturbed later.

[0018]

Next, embodiments of the present invention will be described. As shown in FIG. 1, a packaging device according to this embodiment includes an article to be packaged (21) and a wrapping paper (22) for packaging the article (21).
(51), a guide passage (50) formed above the supply device (51), and a packaged object (21) disposed above the guide passage (50). A rotary transfer device (42) for intermittently transferring the wrapping paper (22) in an integrally held state, and a fixed guide frame (61) arranged to surround the outer periphery of the rotary transfer device (42) And a gusset folding device (6), a pressing device (7) and the like disposed on the outer periphery of the fixed guide frame (61).

The details of each section will be described below. [About the supply device (51)] The supply device (51)
1) a disk (52) in which a plurality of receiving holes (53) for receiving the same are formed at a constant pitch in the vicinity of the outer periphery, and a table (54) disposed close to the lower surface of the disk (52). The table (54) is provided with a through hole (540) located below a guide passage (50) to be described later.

The disk (5) is provided above and adjacent to the disk (52).
The wrapping paper supply claw (58) for supplying the wrapping paper (22) is located above the accommodation hole (53) of (2), and the wrapping paper (22) sandwiched by the wrapping paper supply claw (58). A push-up bar (62) and a presser bar (63) are provided, which integrally hold the packaged object (21) located thereunder from above and below and move them upward. [Guide passage (50), etc.] As shown in FIG. 1, the guide passage (50) formed above the supply device (51) is composed of a pair of opposed lateral bending guides (57) (57). The lateral bending guides (57, 57) are formed in a flat plate shape.

An advancing / retracting plate (59) reciprocating in the direction of rotation of the turret (40) is provided in an upper adjacent portion of the guide passage (50). [Rotary transfer device (42)] The rotary transfer device (42) is composed of an intermittently rotating turret (40) and eight catchers (41) (41) radially mounted around the turret (40) at equal pitches. Have been.

Each of the catchers (41) includes a holding claw (43) rotatably supported on the outer periphery of the turret (40) by support shafts (44) (44).
(43), and these holding claws (43), (43) are urged in a direction approaching each other by a spring (45) provided therebetween. The support shafts (44) and (44) are configured to be slightly rotated about their axes by a driving device (not shown), and the holding claws (44) and (44) are rotated by the rotation of the support shafts (44) and (44). 43) (4
The ends of 3) are separated from each other and open.
Therefore, opening / closing of the holding claws (43) (43) is controlled by ON / OFF of the driving device. In addition, non-slip members (48) (48) are disposed opposite to the free ends of the holding claws (43) (43).

Then, in the packaging device of this embodiment,
In FIG. 1, the place of the catcher (41) located at the lowest position is the first station (ST1), and the places arranged in the clockwise direction at 45 ° intervals are the second stations (ST1).
2)-Eighth station (ST8). [Fixed guide frame (61)] The fixed guide frame (61) covers a range of about 270 degrees clockwise from below the rotary transfer device (42) from the outer periphery, and the inner peripheral surface is formed in a cylindrical shape. ing.
And, the holding claws (43) (43) of the catcher (41) move while approaching to the inner peripheral surface of the fixed guide frame (61). [About the gusset folding device (6)] At the third station (ST3) of the rotary transfer device (42), the cylindrical end of the wrapping paper (22) wound in a cylindrical shape around the body of the article (21) to be packaged. A gusset folding device (6) for narrowing the width of the tubular end portion from the width of the article to be packaged (21) by gusset folding near the portion is provided.

As shown in FIG. 2, the gusset folding device (6) is a gusset folding device which is opposed to a cylindrical end portion of a wrapping paper (22) wound in a cylindrical shape around a body of an article (21). Board (64) (6
5) These gusset folded plates (64) (65)
Are disposed opposite to each other in the front-rear direction with respect to the paper surface of FIG. The gusset folded plates (64) and (65) have the same shape, and one gusset folded plate (64) opens toward the other gusset folded plate (65) and increases in width toward the opening. A recess (640) is formed. Also, recess (640)
The vicinity of the open end (641) of the wrapper (641) is sharply wider than the inner part of the gusset, whereby the gusset is positioned at the open end of the wrapping paper (22) bent into a cylindrical shape. The forming plate (64) is smoothly fitted to the outside. Gazette folded plate
The (64) and the gusset folded plate (65) are moved in a direction of coming and going with each other by a driving device (not shown).

In order to prevent the wrapping paper (22) from buckling when the gusset fold plates (64) and (65) fold the wrapping paper (22) into the cylindrical end of the wrapping paper (22) bent into a cylindrical shape. Guides (67) (67) (68) (6
8) are provided, and these guides (67), (67), (68), (68) are driven by a driving device (not shown) so as to be able to advance and retreat in the radial direction of the turret (40). And one guide (67)
(67) oppose each other across the space between the opposing surfaces of the catching claws (43) and (43) of the catcher (41) and the gusset folded plate (64), and the other guides (68) and (68). Are opposed to each other with a space between the tip of the holding claws (43) and (43) facing the gusset folded plate (65). The one guide (67) and the one guide (68) are arranged so as to sandwich the fixed guide frame (61) in the front-rear direction in FIG. 1 (see FIG. 5). [About the pressing device (7)] The fourth of the rotary transfer device (42)
The station (ST4) includes a press device for pressing the gusset-folded portion at the cylindrical end of the wrapping paper (22) wound around the body of the article to be packaged (21) to form a gusset-folded state.
(7) is provided. The press device (7) is provided with four press rods (71) (71) (72) (72) as shown in FIG. 3, and these press rods (71) (71) and press rod (72) (72) has the same structure and function. And one press rod (71) (7
The gusset folded part (a) of the wrapping paper (22) at the opposite leading end face of 1)
Is pressed to form a flat state. Also, one of the press rods (71) and (72) is arranged so as to sandwich the fixed guide frame (61) in the front-rear direction of the paper surface in FIG. 1 (see FIG. 3).

The turret (4) is
0) A fixed guide plate (60) (60) is provided in front of the rotation direction as shown in FIGS. 1 and 4, and the fixed guide plate (60) (60)
Has a narrow portion (680) (680) and a wide portion (681) (681) located in front of the turret (40) in the rotation direction,
The wide portion (681) and the narrow portion (680) are connected via an inclined portion (682). And these fixed guide plates (60) (60)
Is opposed to the paper surface in FIG. 1 with an interval in the front-rear direction, and the distance between the fixed guide plates (60) and (60) is
(L4) is set substantially equal to the length (L3) of the packaged item (21). [Other Configurations] A fifth station (ST5) next to the fourth station (ST4) in which the fixed guide plates (60), (60), etc. are disposed is provided in the front-rear direction with respect to the plane of FIG. Opposite advancing / retreating plates (76) and (76) are provided at intervals.
As shown in FIG.
1) The (761) moves close to and away from each other in a manner to move near the front ends of the holding claws (43) and (43) of the catcher (41).

The sixth station (ST6) has wrapping paper.
A heating plate (20) for stabilizing (22) in a folded state is provided, and a packaged product (79) is provided in the seventh station (ST7).
An extraction path (78) for supplying (79) to the downstream side is provided. [Regarding Actual Packaging Operation] Next, the operation of the packaging device will be described.

In the above-mentioned packaging apparatus, the flat block-shaped article to be packaged (21) has an end surface (213) in the longitudinal direction formed in an elliptical shape.
(See FIG. 7). Various packaging items (21) having a rounded outline shape, a rectangular parallelepiped packaging item (21), and the like can also be packaged. Incidentally, the end face (213) (2
The corner (214) of (13) is formed in an arc shape. Now, when the packaging apparatus starts to operate, as shown in FIG. 1, the packaged object (21) is stored in the storage holes (53) (53) formed in the outer periphery of the rotating disk (52). Station 1 (ST1)
Is transported to below the catcher (41) and stops. or,
The wrapping paper (22) is supplied by the wrapping paper supply claw (58) above the stopped wrapped object (21), whereby the wrapped object (21) and the wrapping paper (22) are As shown in the first state (A), the state is vertically opposed.

Next, the presser bar (63) waiting above the wrapping paper (22) and the pusher bar (62) waiting below the through hole (540) of the table (54) approach each other. Then, the wrapping paper (22) and the article to be packaged (21) are integrally held from above and below, and the article to be packaged (21) and the wrapping paper (22) are moved upward in this sandwiched state. Then, the article to be packaged (21) rises in the guide passage (50) between the lateral bending guides (57) and (57) while being sandwiched by the push-up bar (62) and the presser bar (63), First, the second bending allowances (80a) and (80b) are bent on the inner surfaces of the horizontal bending guides (57) and (57) to reach the second state (B) in FIG.

The packaged object in the second state (B)
When the wrapping paper (21) and the wrapping paper (22) are raised to the catcher (41), this is the first and second bending allowances (80a) and (80b). It is pinched by. Next, at the same time when the push-up bar (62) and the presser bar (63) separate from each other, the advance / retreat plate (59) advances and the lower part of the first bending allowance (80a) is bent toward the lower surface side of the packaged object (21). Can be Therefore, in this state, since the advancing / retreating plate (59) is located below the packaged object (21) or the like, the clamping force of the clamping claws (43) (43) against the packaged item (21) or the like is small. Also, the article to be packaged (21) does not fall downward. Therefore, even if the article to be packaged (21) is a piece of soft confectionery or the like, there is little fear that it will lose its shape.

Next, the turret (40) rotates by one pitch, and the article (21) and the wrapping paper (22) that were in the first station (ST1) are transferred to the second station (ST2). . At the time of this transfer, the packaged object is moved along the inner peripheral surface of the fixed guide frame (61).
(21) and the like are moved, whereby the lower part of the second folding allowance (80b) is bent to the lower side of the article to be packaged (21), and the third part of FIG.
It becomes state (C). That is, the wrapping paper (22) is wound around the outer periphery of the body of the packaged object (21) in a tubular shape, and the cylindrical end (229) protrudes from the packaged item (21).

Therefore, in this embodiment, the above-described push-up bar (62), presser bar (63), lateral bending guides (57) (57), advance / retreat plate (59), and fixed guide frame (61) are already provided. This corresponds to the wrapping paper winding means according to the first aspect of the present invention. Further, the turret (40) is rotated by one pitch, so that the article to be packaged (21) is in the third position.
It is transferred to the third station (ST3) in the state (C). Then, the gusset folded plates (64) and (65) shown in FIG. 2 approach, and as shown in FIG. 9, the wrapping paper (2
A gusset folded portion (a) (a) is formed near the cylindrical end portion (229) of (2) (this results in the fourth state (D) in FIG. 8). That is, gusset folding is performed by folding two opposing portions (101) and (102) on the outer periphery of the cylindrical end portion (229) of the wrapping paper (22) in the approaching direction. Therefore, in this embodiment, the gusset folded plates (64) and (65) correspond to the gusset folding means in the first aspect of the present invention.

In this case, as described above, the wrapping paper (22) wound in a cylindrical shape is close to the cylindrical end (229) protruding from the article (21) to be packaged, and the gusset folded plate (64) ( Since the gusset is folded in 65) and the part is deformed so as to be pinched, FIG.
0, the base end of the cylindrical end (229) of the wrapping paper (22).
(228) is bent so as to follow the arc-shaped corner portion (214) of the packaged object (21). Therefore, even if the corner (214) is formed in an arc shape, the base end (228) of the wrapping paper (22) is bent so as to be in close contact with the arc-shaped corner, and the wrapping paper ( 22) The surface is less likely to wrinkle. When the gusset is folded, the gusset folded portion is pushed by the amount of pushing the two opposing parts (101) and (102).
The width (L5) of (a) (see FIG. 9) is reduced. Therefore, when the gusset fold is not inserted by the narrowed portion (the width (L
(5) is large), the end of the wrapping paper (22) can be folded more compactly, and there is less fear that it will hinder later processing such as stacking boxes.

As shown in FIG. 5, when the gusset is folded by the gusset folding plates (64) and (65), the gusset folded portion (a) is guided by the guides (67) and (67) and the guides (68) and (68). 68), the wrapping paper (22) is smoothly sandwiched by the gussets. That is, the gusset folded portion (a) is prevented from being buckled by being pushed by the gusset folded plate (64).

When the gusset is folded, the gusset folded plates (64) and (65) and the guides (67), (67), (68) and (68) separate and return to the initial positions. Rotate further by the pitch. Then, the article to be packaged (21) is transferred to the fourth station (ST4) and stopped. Then, as shown in FIG. 3, the press rods (71) and (71) and the press rods (72) and (72) disposed in the fourth station (ST4) approach each other, and the press rods (71) and (72) approach each other. 71) (72) Gazette fold at the tip of (72)
(a) (a) is pinched and the part is bent into a flat state,
As a result, the state becomes the fifth state (E) in FIG. 8, and thereafter, the press rods (71), (71), (72), and (72) separate from each other to the initial position.

Next, when the turret (40) is further rotated, the packaged object (21) and the like held by the catcher (41) are fixed to the fixed guide plate.
(60) The gusset fold that penetrated into (60) and had the habit
(a) (a) is guided by the inclined portions (682) (682) leading from the narrow portion (680) (680) of the fixed guide plate (60) (60) to the wide portion (681) (681), and The portion is bent upright at the portion, thereby forming the sixth portion in FIG.
State (F).

Further, the turret (40) is rotated, and the object to be packaged (2
1) arrives at the fifth station (ST5), the bent gusset folded portions (a) and (a) are bent at the tip bending portions (761) and (761) of the reciprocating plates (76) and (76) shown in FIG. ) To bend in the direction of approaching each other to reach the seventh state (G) in FIG. Therefore, in this embodiment, the fixed guide plates (60) and (60) and the reciprocating plates (76) and (76) correspond to the folding means of the first aspect of the present invention.

Next, when the turret (40) rotates by one pitch and the article to be packaged (21) reaches the sixth station (ST6),
The gusset folds (a) and (a) in the seventh state (G) of FIG. 8 are pressed by the heating plate (20), whereby the folded wrapper is
(22) is stabilized in the folded state. Thereafter, the turret (4
(0) is further rotated and the wrapped object (21) wrapped with the wrapping paper (22)
Arrives at the seventh station (ST7), the catcher (4
Packaged product (79) (79) with the holding claws (43) (43) of 1) opened
Is appropriately taken out to the take-out section (78).

[Brief description of the drawings]

FIG. 1 is a turret of a packaging device according to an embodiment of the present invention.
(40) Front view of the vicinity

FIG. 2 is a perspective view showing the vicinity of a gusset folding device (6) shown in FIG. 1;

FIG. 3 is an enlarged view of the vicinity of the press device (7) shown in FIG.

FIG. 4 is an enlarged view of the vicinity of the fixed guide plates (60) and (60) appearing in FIG.

FIG. 5 is a diagram illustrating the operation of the gusset folding device (6).

FIG. 6 is a perspective view of an arrangement portion of the retreating plates (76) and (76) appearing in FIG.

FIG. 7 is a perspective view of an article to be packaged (21).

FIG. 8 is a view for explaining the order of packaging the article to be packaged (21) by the packaging apparatus of the present invention.

FIG. 9 is a view for explaining the operation of the gusset folded plates (64) and (65).

FIG. 10 is an enlarged view of a base end portion of the gusset folded portion (a).

FIG. 11 is an explanatory view showing the order in which a packaged object (21) is packaged by a conventional packaging device.

FIG. 12 is an explanatory view showing the vicinity of a turret (12) of a conventional packaging apparatus.

FIG. 13 is a front and rear bending guide (16a) (1) shown in FIG.
6b) and the perspective view of the main part of the arrangement part of the horizontal bending guides (17a) (17b)

FIG. 14 is an explanatory diagram of a folding operation of a wrapping paper (22) by a conventional wrapping device.

FIG. 15 is a side bending guide (17a) (17) shown in FIG.
b) is a plan view showing a state in which the packaged object (21) is passing through

[Explanation of symbols]

 (6) ・ ・ ・ Gazette folding device (7) ・ ・ ・ Press device (21) ・ ・ ・ Packaged item (22) ・ ・ ・ Packaging paper (41) ・ ・ ・ Catcher (51) 64) (65) ・ ・ ・ Gazette folded plate (67) (68) ・ ・ ・ Guide

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65B 11/00-11/58

Claims (2)

(57) [Claims] 1. A turret for intermittently rotating a plurality of catchers (41) for integrally holding an object to be packaged (21) and a wrapping paper (22).
Rotary transfer device mounted radially at equal pitch around (40)
(42), a fixed guide frame (61) whose inner peripheral surface is formed in a cylindrical shape so that the catcher (41) moves while approaching, and covers the outer periphery of the rotary transfer device (42); An advancing and retreating plate (59) for folding the lower part of the first folding allowance (80a) of the wrapping paper (22) covering the wrapped object (21) sandwiched by 41) toward the lower surface side of the wrapped object (21) by its advance movement; Further, the lower part of the second folding allowance (80b) of the wrapping paper (22) covering the wrapped object (21) sandwiched by the catcher (41) is covered along the inner peripheral surface thereof by the rotation of the turret (40). The fixed guide frame (61) to be bent is disposed below the package (21), and the wrapping paper (22) is wound around the package (21) in a tubular shape to form a cylindrical end ( Wrapping paper winding means for making 229) project from the article to be packaged (21), and two opposing portions of the outer periphery of each of the cylindrical ends (229) and (229).
(101) A gusset fold means (6) for forming gusset folds (a) (a) into which gusset folds are inserted by pushing the (102) in a direction approaching each other, and each of the gusset folds (a) (a) A press device (7) for pinching the parts (a) and (a) into a flat state by pressing the gusset folded parts (a) knitted by the press device (7)
(a) is rotated by rotation of the turret (40), and its inclined portion (682) (6)
The fixed guide plate (60) (60), which is guided by (82) and bent upright,
And, an advancing and retreating plate (76) (76) that bends each bent gusset folded part (a) (a) in a direction approaching each other by movement of its tip bending part (761) (761), A packaging device comprising folding means for folding each of the gusset folded portions (a) and (a) to the trunk side of the packaged object (21). 2. A packager (21) covered with a wrapping paper (22) at a first station (ST1) of a packaging machine is wrapped by a catcher (41) attached to an intermittently rotating turret (40). Paper (22)
The first and second folding allowances (80a) and (80b) are sandwiched from the side, and the reciprocating plate (59) is advanced in this sandwiching state, and the lower part of the first folding allowance (80a) is placed on the lower surface of the packaged object (21). After being bent to the side, the turret (40) is rotated by one pitch to transfer the article to be packaged (21) to the second station (ST2). At the time of this transfer, the rotary transfer with the catcher (41) is provided. Equipment (42)
The lower part of the second bending allowance (80b) is bent down to the lower side of the packaged object (21) along the inner peripheral surface of the fixed guide frame (61) that covers the outer periphery of the packaged object (21). A wrapping paper (22) is wound in a tubular shape around the outer periphery, and the turret (40) is rotated by one pitch to transfer the article to be packaged (21) to a third station (ST3).
In the station (ST3), a pair of gusset folded plates (64) and (65) formed with concave portions (640) and (640) whose widths increase toward the open portions (641) and (641) are moved toward and away from each other. A direction of approaching two opposing portions (101) and (102) on the outer circumference of each tubular end (229) (229) of the wrapping paper (22) by the movable gusset folding device (6). To form a gusset fold (a) (a) by rotating the turret (40) by one pitch to transfer the packaged object (21) to a fourth station (ST4). 4
At the station (ST4), four press rods (71) (71) (7
2) The press rod (7) is provided by a press (7) equipped with (72).
1) (71) (72) at the end face of (72) each gusset folded part (a) (a)
The parts (a) and (a) are crimped into a flat state, and the turret (40) is rotated, and the turret (40) is installed so as to face at an interval (L3) substantially equal to the length of the packaged object (21). A pair of fixed guide plates
(60) When the object to be packaged (21) enters the inside of (60), the gusseted folded portions (a) and (a) that are habituated are fixed to the fixed guide plate (6).
(0) The slope (6) connecting the narrow part (680) to the wide part (681) of (60)
When the packaged object (21) reaches the fifth station (ST5) by being guided by the part (82) and bends and rises at this part, a pair of reciprocating plates (76) that can be separated and approached at the fifth station (ST5). Move (76) closer and move these forward and backward boards (76)
Each of the bent gusset folded portions (a) and (a) at the tip bent portion (761) of (76) is folded toward the body of the packaged object (21), and the turret (40) is rotated by one pitch. Then, the packaged object (21) is transferred to the sixth station (ST6), and the sixth
A packaging method in which the folded gusset folded portions (a) and (a) are pressed by a heating plate (20) at a station (ST6) to stabilize the folded wrapping paper (22) in the folded state.