JP4391077B2 - Cylindrical film insertion device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tubular film insertion device for inserting a tubular film such as a label into an insertion object such as a bottle container.
[0002]
[Prior art]
For example, as a label insertion device that inserts a cylindrical label formed of a shrink film into a body portion of a PET bottle, a label folded in a sheet shape and a PET bottle are received and the label is opened. While there are those equipped with a rotary type label insertion unit having a plurality of label insertion heads to be inserted into PET bottles, each label insertion head is as shown in FIGS. 15 (a) to (c), A label opener 61 that opens the label L in a sheet shape in a cylindrical shape, and four labels L that are opened in a cylindrical shape by the label opener 61 larger than the body of the PET bottle B. By pushing down the mandrel 62 having the opening / closing bar 62a and the label L expanded by the mandrel 62 from the mandrel 62, The PET bottle B positioned immediately below the Ndoreru 62 and a label pushing plate 63 to interpolate fit the label L.
[0003]
As shown in FIG. 16, the label pushing plate 63 has four open / close rods 62a in a state where the four open / close rods 62a constituting the mandrel 62 are opened, that is, the label L is expanded. The hole 63a has a substantially cross shape in which a peripheral portion thereof partially protrudes radially inward between the adjacent opening / closing rods 62a. .
[0004]
Therefore, when the label pressing plate 63 positioned above the label L expanded by the mandrel 62 is lowered, as shown in FIG. 17, the peripheral portion of the hole 63a projecting radially inward in the label pressing plate 63 Is in contact with the upper end of the expanded label L, and the label L is pushed down and positioned until the upper end reaches a predetermined position on the shoulder of the PET bottle B.
[0005]
[Patent Document 1]
JP-A-11-227730 [0006]
[Problems to be solved by the invention]
By the way, as described above, when the label L is inserted into the PET bottle B so that the upper end of the label L is located on the shoulder of the PET bottle B, if the label pushing plate 63 as described above is used, Although the label L can be reliably positioned at a predetermined position of the PET bottle B, for example, the label L is placed in the PET bottle so that the upper end of the label L is positioned at the trunk of the PET bottle B as shown in FIG. In the label pressing plate 63 in which the peripheral portion of the hole 63a protrudes inside the barrel portion of the PET bottle B as described above, the label pressing plate 63 is lowered to the barrel portion of the PET bottle B even if it is to be inserted into B. Therefore, the label L cannot be pushed down until the upper end of the label L comes to a predetermined position on the body of the PET bottle B.
[0007]
Therefore, when the label L is inserted into the PET bottle B so that the upper end of the label L is positioned at the body of the PET bottle B, the diameter is smaller than that of the label L expanded by the mandrel 62 as shown in FIG. In this case, it is conceivable to use the label pressing plate 64 having the hole 64a formed to have a diameter slightly larger than that of the body of the PET bottle B. Usually, the outer diameter of the label L is more extreme than the outer diameter of the PET bottle B. Therefore, the diameter of the hole 64a formed in the label pushing plate 64 is only slightly smaller than the outer diameter of the label L expanded by the mandrel 62, and the label pushing plate 64 When the label L is pushed down from the mandrel 62, the label L is easily deformed and enters the inside of the hole 64a of the label pushing plate 64, and the label L is firmly attached to the body of the PET bottle B. A problem occurs, such as can not be fitted into.
[0008]
Then, the subject of this invention is providing the insertion apparatus of the cylindrical film which can insert a cylindrical film reliably in a to-be-inserted insertion body in view of the problem mentioned above.
[0009]
[Means for solving the problems and effects thereof]
In order to solve the above-mentioned problem, the invention according to claim 1 is directed to a tubular film opened in a predetermined state by being inserted into a mandrel, with respect to the mandrel and a to-be-inserted object positioned immediately below the mandrel. In the tubular film insertion device for inserting the tubular film into the inserted insertion body by relatively pushing down, the upper end edge of the tubular film inserted into the mandrel is contacted, A pressing member that presses down the tubular film relative to the mandrel and the inserted insert, and the pressing member relative to the mandrel and the inserted insert. When being pushed down, the advancing and retreating in the radial direction of the packaged body along the outer shape of the packaged body in contact with the outer surface of the packaged body, and against the outer surface of the packaged body Contact Is biased in the pressing member, provides the fitted device of the tubular film, characterized in that has a claw portion enters between the outer surface and the cylindrical film of the package To do. Note that “the pressing member presses the tubular film relative to the mandrel and the inserted insert” refers to the mandrel and the inserted insert held at a predetermined height position. In addition, when the pressing member is actually moved downward, not only when the cylindrical film is pressed down against the mandrel or the inserted insert, but also against the pressing member held at a predetermined height position, It goes without saying that a case where the pressing member pushes down the tubular film with respect to the mandrel or the inserted insert by raising the mandrel and the inserted insert is included.
[0010]
As described above, in this tubular film insertion device, the pressing member that advances and retreats in the radial direction of the packaged body is urged in the direction in contact with the outer surface of the packaged body. When a tubular film is inserted into a package body such as a bottle container whose outer diameter is gradually increased, such as a shoulder portion and a trunk portion, first, the upper end of the tubular film in which the pressing member is inserted into the mandrel At the time of contact with the edge, the pressing member protrudes to some extent on the radially inner side of the tubular film, and the tubular film can be reliably pushed down against the mandrel.
[0011]
Subsequently, when the pressing member is relatively lowered to the shoulder of the package body, the outer diameter of the package body is increased. Therefore, when the pressing member comes into contact with the outer surface of the package body, the pressing member is packaged. While retreating to the outside in the radial direction of the body, the body descends relative to the packaged body. Thus, when the pressing member passes through the large-diameter portion of the packaged body, the tubular film is pushed down relative to the packaged body with the pressing member in contact with the outer surface of the packaged body. Therefore, even when the inner diameter of the cylindrical film is set slightly larger than the outer diameter of the large diameter portion of the packaged body, the cylindrical film is not between the packaged body and the pressing member. It is difficult to enter, and the tubular film can be securely inserted into the body of the packaged body.
[0012]
Furthermore, the pressing member is, because the have a claw portion enters between the tubular film and the outer surface of the package, a relatively pusher is a tubular film against the packaged body When the pressing member is pushed down, even if the pressing member is retracted to the outer side in the radial direction of the packaged body so as to follow the outer shape of the packaged body, the upper edge of the cylindrical film does not come off from the pressing member. The cylindrical film can be securely inserted into the body of the package body without entering between the package body and the pressing member.
[0013]
In particular, as in the tubular film insertion device according to the second aspect of the present invention, the pressing member is supported so as to be pivotable, and by rotating upward, the radial direction of the packaged body. In the case where the object is to be retracted to the outside, the object to be packaged that moves relatively upward with respect to the pressing member pushes the tip side of the pressing member in the same direction as the relative movement direction, thereby pressing Since the member can be retracted to the outside of the package body in the radial direction, the package body that moves relative to the press member in the upward direction is pressed to retract the press member to the outside of the package body in the radial direction. Compared to the case where the member is slid or rotated in the horizontal direction (direction orthogonal to the relative movement direction of the packaged body), the retracting operation of the pressing member is performed smoothly, and the tubular film is always kept in a stable state. Can be inserted into the insert Kill.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows a label insertion device 1 for inserting a cylindrical label L formed of a shrink film into the body of a bottle B. The label insertion device 1 includes a belt conveyor 11, a screw The label L is formed while sequentially cutting the bottle supply unit 10 composed of 12 and the star wheel 13 and the long label forming substrate M fed from the substrate roll by the substrate feeding unit 21. A label supply unit 20 that sequentially supplies the first delivery position α, a label delivery unit 30 that receives the label L supplied to the first delivery position α by the label supply unit 20 and conveys it to the second delivery position β, and a bottle supply The bottle B supplied from the bottle supply unit 10 at the position γ is received and conveyed to the bottle delivery position δ, and the label receiving unit is received. A rotary type label fitting that receives the label L conveyed by the delivery unit 30 at the second delivery position β and fits the label L into the bottle B while the bottle B is conveyed from the bottle supply position γ to the bottle delivery position δ. A star wheel 51, a screw 52, and a belt conveyor for conveying the bottle B in which the label L is inserted and inserted into the insertion unit 40 and a heating unit (not shown) for thermally contracting the label L inserted in the bottle B. 11 and a bottle transport unit 50 composed of 11.
[0015]
As shown in FIG. 2, the label delivery unit 30 includes a plurality of take-up members 31 that rotate at a constant rotational speed so as to pass through the first delivery position α and the second delivery position β. When the take-up member 31 sucks and holds the label L supplied to the first delivery position α in a folded state, the label L is received and conveyed to the second delivery position β.
[0016]
As shown in FIG. 2, the label insertion unit 40 includes a plurality of support arms 42 radially extending from the rotation shaft 41 and attached to a plurality of concentric circles centered on the rotation shaft 41 at regular intervals. A label insertion head 43 is provided, and each label insertion head 43 causes the cylindrical label L folded into a sheet received at the second label delivery position β to expand larger than the outer diameter of the bottle B. The expanded label L is inserted into the body of the bottle B while the bottle B received at the bottle supply position γ is being conveyed to the bottle delivery position δ.
[0017]
The label insertion head 43 is a sheet that has been transported to the second delivery position β by the bottle placement table 44 on which the bottle B supplied from the bottle supply unit 10 is placed at the bottle supply position γ, and the label delivery unit 30. The label opener 45 that receives the label L folded in a cylindrical shape and opens in a cylindrical shape, and the four opening / closing cups 46a that expand the label L opened in a cylindrical shape by the label opener 45 larger than the outer diameter of the bottle B 3 and a label positioner 47 that is inserted into the bottle B placed on the bottle placing table 44 by pushing down the label L expanded by the mandrel 46. FIG. As shown in FIG. 4B, the label L in a folded state received at the second delivery position β is shown in FIG. Then, after being opened in a cylindrical shape by the label opener 45, a closed mandrel 46 is inserted into the opened label L as shown in FIG. As shown, when the mandrel 46 is opened, the label L is expanded larger than the outer diameter of the bottle B, and then, as shown in FIGS. The label L expanded by the mandrel 46 is inserted into the body of the bottle B by the label positioner 47 while being transported to the bottle delivery position δ while being held on the bottle mounting table 44. Yes.
[0018]
As shown in FIG. 2, the label positioner 47 is attached to a lower end portion of a support bar 48 supported by the support arm 42 so as to be movable up and down, and fixed to the support bar 48 as shown in FIGS. The base body 471 and four pressing members 475 that are rotatably supported by the base body 471 are provided.
[0019]
As shown in FIGS. 4 to 6, the base body 471 is fixedly installed on a plate-like main body portion 472 in which a hole 472 a into which the mandrel 46 and the bottle B can be inserted is formed, and a lower surface of the main body portion 472. And a support member 473 having two support legs 473a for supporting each pressing member 475, and the main body 472 has a notch for accommodating the pressing member 475 at the peripheral edge of the hole 472a. 472b is formed.
[0020]
As shown in FIGS. 7A to 7E, the pressing member 475 includes a substantially U-shaped frame 476 in which upright rods 476b rise from both ends of the horizontal rod 476a, and a width direction of the frame 476. A thin contact piece 477 that abuts against the outer surface of the bottle B and is extended to the rear side from the horizontal flange 476a of the frame 476, which is connected to the upper end of the vertical rod 476b so as to protrude outward. As shown in FIG. 5, the pressing member 475 is rotatably supported on the support leg 473 a of the support member 473 by the support shaft 479.
[0021]
The contact piece 477 is curved along the outer peripheral surface of the body portion of the bottle B. As shown in FIGS. 5 and 7D, the lower edge of the contact piece 477 is on the lower side from the connecting portion with respect to the vertical rod 476b. Has a claw portion 477a projecting from the top.
[0022]
Further, a support block 474 is fixedly installed on the upper surface of the main body portion 472 constituting the base body 471. As shown in FIG. 5, the upper and lower ends are penetrated through the main body portion 472 and the support member 473. The pressing member 475 is constantly urged in the direction in which the overhanging rod 478 is pulled up by the coil springs 474a connected to the support block 474 and the overhanging rod 478, respectively.
[0023]
In addition, a stopper screw 474b is screwed into the support block 474 so as to protrude from the lower surface of the support member 473 constituting the base body 471. Although not clearly shown, the lower end portion of the stopper screw 474b However, the contact of the pressing member 475 with the upper surface of the overhanging bar 478 restricts the upward rotation of the overhanging bar 478.
[0024]
Hereinafter, the movement of the label positioner 47 when the label L expanded by the mandrel 46 (opening / closing bar 46a) is inserted into the body of the bottle B will be described. First, in the initial stage of pushing down the label L expanded by the mandrel 46 downward, as shown in FIGS. 8A and 8B, the overhanging bar 478 is urged upward by the coil spring 474a. Therefore, the contact piece 477 of the pressing member 475 protrudes inward in the radial direction of the label L, and the upper end edge of the label L is in contact with the frame 476 (standing rod 476b) constituting the pressing member 475. The contact piece 477 is in contact with the connecting portion and is caught.
[0025]
Accordingly, when the label L is pushed down from the mandrel 46 (opening / closing rod 46a), the label L is not easily detached from the pressing member 475, and the label L is lowered by the pressing member 475 that moves down together with the base 471. Will surely be pushed down.
[0026]
Subsequently, when the label positioner 47 is lowered to the shoulder of the bottle B, the outer diameter of the bottle B is increased, so that the label L protrudes inward in the radial direction of the label L as shown in FIGS. When the contact piece 477 of the pressing member 475 contacts the outer surface of the shoulder portion of the bottle B, the pressing member 475 is in the radial direction of the bottle B in a state where the contact piece 477 is in contact with the outer peripheral surface of the body portion of the bottle B. While retreating outside, the base 471 descends.
[0027]
Then, when the label positioner 47 is lowered to the body portion of the bottle B, the pressing member 475 is pushed by the contact piece 477 being pressed against the outer surface of the body portion of the bottle B as shown in FIGS. Further rotating, the frame 476 (standing rod 476b) is raised substantially vertically with the contact piece 477 in contact with the outer peripheral surface of the body of the bottle B, and the claw portion 477a of the contact piece 477 is labeled with the label L. It enters between the outer peripheral surface of the body of the bottle B, and in this state, the label L is pushed down to a predetermined position in the body of the bottle B.
[0028]
As described above, the label positioner 47 is in a state in which the contact piece 477 constituting the pressing member 475 is in contact with the outer peripheral surface of the bottle B when the base 471 passes through the bottle B. Since the label L is pushed down, even if the inner diameter of the label L is set slightly larger than the outer diameter of the body of the bottle B, the label L is not in contact with the bottle B and the pressing member 475. Even when inserting the label L into the bottle B so that the upper end of the label L is located at the body of the bottle B, it is surely positioned at a predetermined position of the body of the bottle B so that it does not easily enter the contact piece 477. In this state, the label L can be inserted into the body of the bottle B.
[0029]
In particular, when the label positioner 47 passes through the body of the bottle B, even if the contact piece 477 of the pressing member 475 is retracted to the outside in the radial direction of the bottle B so as to follow the outer shape of the bottle B, Since the nail | claw part 477a of the contact piece 477 which is contacting the trunk | drum outer peripheral surface of B enters between the trunk | drum outer peripheral surface of the bottle B, and the upper end edge of the label L, the pressing member 475 is the When the label L is pushed down, the upper end edge of the label L is not detached from the pressing member 475, and the label L can be securely inserted into the body portion of the bottle B.
[0030]
Further, in this label positioner 47, the pressing member 475 is rotatably supported by the base 471, and the pressing member 475 is retracted to the outside in the radial direction of the bottle B by rotating the contact piece 477 side upward. Therefore, the bottle B that moves relative to the descending base body 471 pushes up the abutting piece 477 of the pressing member 475 in the same direction as the relative moving direction, thereby causing the pressing member 475 to move. The bottle B can be retracted to the outside in the radial direction. Accordingly, the bottle that moves relative to the descending base moves the pressing member 475 in the diameter of the bottle B by sliding or rotating the pressing member in the horizontal direction (direction orthogonal to the relative movement direction of the bottle). Compared with the label positioner that is retracted outward in the direction, the retracting operation of the pressing member 475 is performed smoothly, and the cylindrical film can be always inserted into the bottle B in a stable state.
[0031]
In the above-described embodiment, the label positioner 47 having the claw portion 477a that the contact piece 477 of the pressing member 475 enters between the outer peripheral surface of the body of the bottle B and the upper end edge of the label L is used. Although the label insertion device 1 has been described, the present invention is not limited to this, and it is also possible to use a label positioner in which the pressing member does not have a claw portion. However, as described above, in order to reliably prevent the upper end edge of the label from coming off the pressing member when the pressing member pushes down the label, it is desirable to provide a claw portion.
[0032]
Further, in the above-described embodiment, in order to retract the pressing member 475 to the outside in the radial direction of the bottle B, the label positioner 47 supported by the base body 471 is used so that the pressing member 475 rotates in the vertical direction. Although the label insertion device 1 has been described, the present invention is not limited to this. For example, as shown in FIGS. 11 (a) to 11 (c) and FIG. 12, a press having a claw portion 475Aa on the distal end side. The member 475A is slidably supported on the plate-like main body 472A of the base 471A so as to advance and retreat with a predetermined stroke in the radial direction of the hole 472Aa, and the pressing member 475A is supported by the coil spring 474A. As shown in FIGS. 13 (a), 13 (b) and 14, the label positioner 47A urged radially inward of 472Aa The arm-like pressing member 475B having the portion 475Ba is supported by the plate-like main body portion 472B of the base 471B so as to be rotatable in the radial direction of the hole 472Ba, and the pressing member 475B is supported by the torsion spring 474B. Thus, it is also possible to use a label positioner 47B or the like that is biased radially inward of the hole 472Ba.
[0033]
In the above-described embodiment, the label insertion device 1 in which the mandrel 46 including the four opening / closing rods 46a is used has been described. However, the present invention is not limited to this, and for example, a cylindrical mandrel is used. In this case, it is necessary to form a longitudinal groove into which the tip portions of the pressing members 475, 475A, and 475B can enter on the outer peripheral surface of the mandrel.
[0034]
In the above-described embodiment, the bases 471, 471A, 471B on which the pressing members 475, 475A, 475B are supported actually descend with respect to the mandrel 46 and the bottle B held at the predetermined height positions. Thus, the label L is pushed down from the mandrel 46 to the bottle B side, but the present invention is not limited to this, and the bases 471, 471A, 471B (pressing members 475,) held at predetermined height positions are not limited thereto. 475A, 475B), by raising the mandrel 46 and the bottle B, the pressing members 475, 475A, 475B may push the label L from the mandrel 46 to the bottle B side.
[0035]
Moreover, although embodiment mentioned above demonstrated the label insertion apparatus 1 for inserting and inserting the cylindrical label L in the trunk | drum of the bottle B, it is not limited to this, This invention is cylindrical. Needless to say, this film can be applied to various types of inserted objects.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a label insertion device as an embodiment of a cylindrical film insertion device according to the present invention.
FIG. 2 is a schematic diagram showing a label insertion unit in the above-described label insertion device.
FIGS. 3A to 3G are operation explanatory views showing the operation of the label insertion head mounted on the label insertion unit of the above.
FIG. 4 is a plan view showing a label positioner mounted on the label insertion head of the above.
FIG. 5 is a sectional view showing the same label positioner.
FIG. 6 is a cross-sectional perspective view showing a base body constituting the label positioner of the above.
7A is a plan view showing a pressing member constituting the same label positioner, FIG. 7B is a front view showing the pressing member, and FIG. 7C is a bottom view showing the pressing member; (D) is a left side view showing the same pressing member, and (e) is a rear view showing the pressing member.
FIGS. 8A and 8B are operation explanatory views showing label insertion operation by the same label positioner.
FIGS. 9A and 9B are operation explanatory views showing label insertion operation by the above-described label positioner. FIG.
FIGS. 10A and 10B are operation explanatory views showing label insertion operation by the above-described label positioner.
11A is a plan view showing a modified example of the label positioner, FIG. 11B is a partial side view showing the same label positioner, and FIG. 11C is a partial sectional view showing the same label positioner.
FIG. 12 is a plan view showing a state in which the pressing member is retracted in the label positioner same as above.
FIG. 13A is a plan view showing another modified example of the label positioner, and FIG. 13B is a side view showing the same label positioner.
FIG. 14 is a plan view showing a state where the pressing member is retracted in the label positioner same as above.
FIGS. 15A to 15C are schematic views showing a label insertion head mounted on a conventional label insertion device and its operation.
FIG. 16 is a plan view showing a label pressing plate mounted on the label insertion head of the above.
FIG. 17 is a schematic view showing a positioning state of a label inserted into a PET bottle by the label pressing plate same as above.
FIG. 18 is a schematic view showing another positioning state of a label fitted in a PET bottle.
FIG. 19 is an explanatory diagram for explaining a problem of a conventional tubular film insertion device.
[Explanation of symbols]
1 Label insertion device (tubular film insertion device)
DESCRIPTION OF SYMBOLS 10 Bottle supply unit 20 Label supply unit 30 Label delivery unit 40 Label insertion unit 43 Label insertion head 44 Bottle mounting base 45 Label opener 46 Mandrel 46a Opening / closing rod 47, 47A, 47B Label positioner 471, 471A, 471B Base 472, 472A 472B Body 472a, 472Aa, 472Ba Hole 472b Notch 473 Support member 473a Support leg 474 Support block 474a, 474A Coil spring 474B Torsion spring 474b Stopper screw 475, 475A, 475B Press member 475Aa, 475Ba Claw 476 Frame 477 Piece 477a Claw part 50 Bottle transport unit B Bottle (packaged body)
L label (tubular film)

Claims (2)

A cylindrical film opened in a predetermined state by being inserted into a mandrel is pushed down relative to the mandrel and the inserted insert located immediately below the mandrel, whereby the cylinder is inserted into the inserted insert. In a tubular film insertion device for inserting a cylindrical film,
A pressing member that comes into contact with the upper edge of the tubular film fitted into the mandrel, and pushes down the tubular film relative to the mandrel and the fitted insert;
The pressing member follows the outer shape of the packaged body in a state in which the tubular film is in contact with the outer surface of the packaged body when the tubular film is pushed down relative to the mandrel and the fitted insert. As described above, while being advanced and retracted in the radial direction of the packaged body, it is biased in a direction contacting the outer surface of the packaged body ,
The said pressing member has a nail | claw part inserted between the outer surface of the said to-be-packaged body, and the said cylindrical film, The insertion apparatus of the cylindrical film characterized by the above-mentioned. The fitting of the tubular film according to claim 1 , wherein the pressing member is supported so as to be pivotable and is retreated to the outside in the radial direction of the package body by pivoting upward. Insertion device.

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