JP2020138765A - Attachment and labeling device - Google Patents

Abstract

A roll having a core with a large inner diameter can be attached to a roll holding mechanism without shortening the length of a backing paper wound around the core. SOLUTION: Support columns 33a to 33c are arranged so as to be inscribed in a cylinder centered on a predetermined central axis. The cylinder has a diameter approximately equal to the inner diameter of the core of the second roll. The sum of the distance between the central axis and the center of the shaft portion of the roll holding mechanism and the outer diameter of the shaft portion is equal to or less than the radius of the cylinder. The distance between the central axis and the outer peripheral portion of the roll holding mechanism is greater than the distance between the shaft portion and the outer peripheral portion. [Selection drawing] Fig. 4

Description

The present invention relates to an attachment for mounting rolls having different inner diameters of cores on a roll holding mechanism for holding rolls in a label sticking device or the like.

Patent Document 1 discloses a labeling device. The label affixing device is used by attaching a roll on which a mount on which a large number of labels are affixed is wound around a core to a shaft portion. The outer diameter of the shaft is approximately equal to the inner diameter of the core.

Japanese Unexamined Patent Publication No. 2011-0886969

When it is desired to use rolls having different inner diameters of the cores in the labeling device, attachments may be used. The attachment has, for example, a columnar shape, and a through hole having an inner diameter substantially equal to the outer diameter of the shaft portion is provided along the central axis. By attaching the attachment to the shaft portion, a roll having an inner diameter of the core substantially equal to the outer diameter of the attachment can be attached to the label sticking device.
However, the outer diameter of the roll that can be attached to the label sticking device does not change. Therefore, as the inner diameter of the core increases, the length of the mount wrapped around the core becomes shorter. Therefore, the number of labels that can be attached to one roll is reduced.

The attachment is a roll holding mechanism in which a first roll in which a long mount is wound around a cylindrical core is mounted, and a second roll having an inner diameter of the core larger than that of the first roll is attached. Installing. The roll holding mechanism has a substantially columnar shape and an outer diameter substantially equal to the inner diameter of the core of the first roll, and has a shaft portion inserted into the core of the first roll and a diameter from the shaft portion. It has an outer peripheral portion arranged at a position separated by a predetermined distance or more in the direction. The attachment is located at a position separated from three or more strut portions arranged inscribed in a cylinder centered on a predetermined central axis by a predetermined distance in a radial direction different from the outer peripheral portion with respect to the shaft portion. A mounting portion for attaching the attachment to the roll holding mechanism is provided so that the central axis is located. The diameter of the cylinder is substantially equal to the inner diameter of the core of the second roll. The sum of the distance between the central shaft and the center of the shaft portion and the outer diameter of the shaft portion is equal to or less than the radius of the cylinder. The distance between the central shaft and the outer peripheral portion is larger than the distance between the shaft portion and the outer peripheral portion.
The central axis may be located on or inside a polygonal side connecting points where the strut portion touches the cylinder.
The roll holding mechanism may have a side support portion attached to the shaft portion and arranged in the axial direction of the first roll. The attachment may further include a second attachment to which the side support is attached.
The mounting portion may have a through hole through which a screw to be screwed passes through a screw hole provided in the shaft portion.
The label affixing device may include the attachment, the roll holding mechanism to which the attachment is attached, and a label affixing mechanism for peeling off the label affixed to the mount of the roll and affixing the label to the affixed object.

Since the distance between the central shaft and the outer peripheral portion of the cylinder inscribed by the support portion is larger than the distance between the shaft portion and the outer peripheral portion, a second roll having a larger outer diameter than the first roll is mounted. be able to.
If the central axis is located on or inside the side of the polygon connecting the points where the support column contacts the cylinder, the second roll can be stably held.
If the second mounting portion is provided, the side support portion can be mounted, so that the roll can be prevented from moving or coming off in the axial direction.

The perspective view which shows an example of the label sticking apparatus. The figure which shows the place where the roll was attached to the label sticking apparatus. The perspective view which shows an example of the attachment. The perspective view which shows the said attachment. The perspective view which shows the place where the attachment was attached to the label sticking apparatus. The figure which shows the place where the roll was attached to the label affixing device to which the attachment was attached.

The label affixing device 10 shown in FIGS. 1 and 2 is a hand-held device used for affixing a label to an object to be affixed. Labels are supplied in the form of rolls. The roll 80a has a cylindrical core 81, a long mount 82 wrapped around the core 81, and a large number of labels attached to the mount 82. The label sticking device 10 pulls out the mount 82 from the roll 80a, peels off the label from the pulled out mount 82, and sticks the peeled label on the object to be stuck.

As shown in FIG. 1, the label sticking device 10 includes, for example, a label sticking mechanism 11 and a roll holding mechanism 12. The roll 80a is attached to and held by the roll holding mechanism 12. The label sticking mechanism 11 pulls out the mount 82 from the roll 80a attached to the roll holding mechanism 12, peels off the label, and sticks it to the sticking object.

The roll holding mechanism 12 has, for example, a shaft portion 21, an outer peripheral portion 22, a fixed side surface support portion 23, and a side surface support portion 24. The shaft portion 21 is generally columnar. The outer peripheral portion 22 is arranged at a position radially separated from the shaft portion 21. The fixed side surface support portion 23 is arranged in the axial direction with respect to the shaft portion 21, and has a flat plate shape substantially perpendicular to the axial direction of the shaft portion 21. The side surface support portion 24 is detachably arranged with respect to the shaft portion 21 in the axial direction opposite to the fixed side surface support portion 23.

As shown in FIG. 2, the outer diameter D ₂₁ of the shaft portion 21 is substantially equal to the inner diameter D _a1 of the core 81 of the roll 80a, and the roll 80a is rotatably held around the shaft portion 21. The maximum value of the outer diameter D _a2 of the roll 80a that can be attached to the roll holding mechanism 12 is determined by the outer peripheral portion 22. That is, the roll 80a outer diameter D _a2 is larger than the minimum value of the distance L ₁ between the shaft portion 21 and the outer peripheral portion 22 can not be attached to the roll holding mechanism 12. Therefore, the mount 82 can be wound around the roll 80a until the outer diameter D _a2 reaches the minimum value of the distance L ₁ .

When the roll 80a is attached to the roll holding mechanism 12, the side surface support portion 24 is removed and the shaft portion 21 is inserted into the core 81 of the roll 80a. After that, by attaching the side surface support portion 24, the fixed side surface support portion 23 and the side surface support portion 24 support the roll 80a by sandwiching it from the side surface, so that the roll 80a moves or comes off in the axial direction of the shaft portion 21. prevent.

The attachments 30 shown in FIGS. 3 to 6 are used by being attached to the label affixing device 10 so that the roll 80b having a larger inner diameter of the core 81 than the roll 80a can be attached.

As shown in FIGS. 3 and 4, the attachment 30 has, for example, a side plate portion 31, a mounting portion 32, a strut portion 33a to 33c, a reinforcing portion 34a to 34c, and a second mounting portion 35.
The side plate portion 31 has a substantially flat plate shape, and the leg portions 312 and 313 extend downward from the disk portion 311. The lower edges of the legs 312 and 313 have a shape along the outer peripheral portion 22, and stabilize the attachment 30 when the attachment 30 is attached to the label affixing device 10. The shaft portion 21 engages between the legs portions 312 and 313.
The attachment portion 32 is for attaching the attachment 30 to the label affixing device 10, and has a support portion 321 and a holding portion 322. The support portion 321 rises substantially vertically from the side plate portion 31 and supports the holding portion 322. The sandwiching portion 322 has a flat plate shape substantially parallel to the side plate portion 31, and the through hole 323 penetrates substantially vertically. The distance between the holding portion 322 and the side plate portion 31 is substantially equal to the thickness of the fixed side surface supporting portion 23, and the fixed side surface supporting portion 23 is sandwiched between the leg portions 312 and the leg portions 313 and the holding portion 322. A male screw 40 is inserted into the through hole 323. The male screw 40 inserted through the through hole 323 is screwed from the outside into the screw hole 211 penetrating the fixed side surface support portion 23, whereby the attachment 30 is fixed to the label sticking device 10. The method of fixing the attachment 30 to the label sticking device 10 is not limited to screw fixing, and other methods may be used.

The second mounting portion 35 has a substantially columnar shape, and extends substantially perpendicular to the disc portion 311 from the center of the disc portion 311 in the direction opposite to the mounting portion 32. A side support portion 24 can be attached to the second attachment portion 35. Therefore, the tip of the second mounting portion 35 has a shape substantially the same as that of the shaft portion 21, for example. This prevents the roll 80b from moving or coming off in the axial direction. Even when the attachment 30 is attached, if the side support portion 24 can be attached to the shaft portion 21, the side support portion 24 may be attached to the shaft portion 21, and in that case, the second attachment portion 35 is not provided. May be good.

The strut portions 33a to 33c are generally columnar, and are substantially perpendicular to the disc portion 311 from a position separated from the center of the disc portion 311 by a predetermined distance in the same direction as the second mounting portion 35. It is extending. When viewed from the center of the disc portion 311, the strut portion 33b is located in a direction 90 degrees different from the strut portion 33a, and the strut portion 33c is on the opposite side of the strut portion 33b and also with respect to the strut portion 33a. It is located 90 degrees different. The strut portions 33a to 33c cooperate to rotatably support the core 81 of the roll 80b. Therefore, the support columns 33a to 33c are inscribed in the cylinder centered on the central axis of the disk portion 311.
The reinforcing portions 34a to 34c are provided between the corresponding strut portions 33a to 33c and the second mounting portion 35, and have a flat plate shape substantially perpendicular to the side plate portion 31. The reinforcing portions 34a to 34c support the strut portions 33a to 33c so that they do not bend or fall.

As shown in FIG. 6, the inner diameter D _b1 of the core 81 of the roll 80b is larger than the inner diameter D _a1 of the core 81 of the roll 80a, and is substantially equal to the diameter D _{33 of} the cylinder inscribed by the support columns 33a to 33c. As a result, the roll 80b is rotatably supported around the central axis of the cylinder.
The central axis is located in a direction different from that of the outer peripheral portion 22 with respect to the shaft portion 21. Therefore, the central axis is farther from the outer peripheral portion 22 than the shaft portion 21. That is, the minimum value of the distance L ₂ between the central shaft and the outer peripheral portion 22 is larger than the minimum value of the distance L ₁ between the shaft portion 21 and the outer peripheral portion 22. As a result, the mount 82 can be wound around the roll 80b until the outer diameter D _b2 reaches the minimum value of the distance L ₂ .

When an attachment that only increases the outer diameter of the shaft portion 21 is used without changing the position of the central shaft, the mount 82 is attached to the roll 80b only until the outer diameter D _b2 reaches the minimum value of the distance L _2. I can't wrap it. Therefore, the length of the mount 82 to be wound is shorter than that of the roll 80a, and the number of labels that can be attached to the roll 80b is reduced.

On the other hand, if the attachment 30 is used, the mount 82 can be wound around the roll 80b until the outer diameter D _b2 reaches the minimum value of the distance L ₂ . Therefore, it is possible to alleviate or prevent the length of the mount 82 to be wound from being shortened, or conversely to lengthen it. As a result, the decrease in the number of labels that can be attached to the roll 80b can be alleviated or prevented, or vice versa.

The shape of the strut portion is not limited to a columnar shape, and may be any shape having a smooth curved surface inscribed in the cylinder, such as a semi-cylindrical shape, on the outside. The number of strut portions is not limited to three, and may be four or more. In order to prevent rattling of the roll 80b, it is preferable that the central axis is on or inside the side of the polygon connecting the points where the support columns are inscribed in the cylinder. As a result, the roll 80b can be stably held. When the shaft portion 21 is inscribed in the cylinder, the central shaft may be located on or inside the side of the polygon connecting the points inscribed in the cylinder including the shaft portion 21. Further, even if the central axis is below the polygon connecting the points where the support columns (and the shaft portions 21) are inscribed in the cylinder, the label sticking mechanism 11 can remove the mount 82 from the roll 80b by gravity. By pulling out, a force that pulls the roll 80b downward acts, so that the roll 80b can be stably held to some extent.
Further, the central axis does not have to pass through the center of the disk portion 311 and the disk portion 311 does not have to have a disk shape.

When the roll 80b is supported by a shaft portion having an outer diameter substantially equal to the inner diameter D _b1 of the core 81 of the roll 80b, the contact area between the core 81 and the shaft portion is large and the friction is large, so that the shaft portion itself rotates. Otherwise, the roll 80b cannot be rotated smoothly, which may hinder the operation of the label sticking mechanism 11. However, since the shaft portion 21 exists at a position away from the central axis of the shaft portion, it is difficult to configure the shaft portion itself to be rotatable.

On the other hand, if the roll 80b is supported by a plurality of strut portions, the contact area between the core 81 and the strut portion becomes smaller. Since the friction is small, the roll 80b can be smoothly rotated even if the strut portion does not rotate, so that the label sticking mechanism 11 can be operated stably.

The embodiment described above is an example for facilitating the understanding of the present invention. The present invention is not limited thereto, and includes various modifications, modifications, additions, or removals without departing from the scope defined by the appended claims. This can be easily understood by those skilled in the art from the above description.

10 Labeling device, 11 Labeling mechanism, 12 Roll holding mechanism, 21 Shaft part, 211 Thread hole, 22 Outer circumference part, 23 Fixed side support part, 24 Side support part, 30 Attachment, 31 Side plate part, 311 Disk part, 312,313 Leg, 32 Mounting, 321 Support, 322 Holding, 323 Through Hole, 33a-33c Strut, 34a-34c Reinforcing, 35 Second Mounting, 40 Male Thread, 80a, 80b Roll, 81 Core , 82 mount, D _a1 , D _b1 inner diameter, D ₂₁ , D _a2 , D _b2 outer diameter, D ₃₃ diameter, L ₁ , L ₂ distance.

Claims (5)

To mount the second roll, which has a larger inner diameter than the first roll, on the roll holding mechanism, which mounts the first roll with a long mount wrapped around a cylindrical core. In the attachment of
The roll holding mechanism has a substantially columnar shape and an outer diameter substantially equal to the inner diameter of the core of the first roll, and has a shaft portion inserted into the core of the first roll and a diameter from the shaft portion. It has an outer peripheral portion arranged at a position separated by a predetermined distance or more in the direction, and has an outer peripheral portion.
The attachment is
Three or more strut parts arranged inscribed in a cylinder centered on a predetermined central axis, and
A mounting portion for attaching the attachment to the roll holding mechanism is provided so that the central shaft is located at a position separated from the shaft portion by a predetermined distance in a radial direction different from the outer peripheral portion.
The cylinder has a diameter approximately equal to the inner diameter of the core of the second roll.
The sum of the distance between the central shaft and the center of the shaft portion and the outer diameter of the shaft portion is equal to or less than the radius of the cylinder.
The distance between the central shaft and the outer peripheral portion is larger than the distance between the shaft portion and the outer peripheral portion.
attachment. The central axis is located on or inside a side of a polygon connecting points where the strut portion touches the cylinder.
The attachment of claim 1. The roll holding mechanism has a side support portion attached to the shaft portion and arranged in the axial direction of the first roll.
The attachment further comprises a second attachment to which the side support is attached.
The attachment of claim 1 or 2. The mounting portion has a through hole through which a screw to be screwed into a screw hole provided in the shaft portion passes.
The attachment according to any one of claims 1 to 3. With the attachment according to any one of claims 1 to 4.
With the roll holding mechanism to which the attachment is attached,
A label sticking mechanism that peels off the label stuck to the mount of the roll and sticks it to the sticking target,
A labeling device.

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