JPS6139732Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a core of a continuous label body used in a label printing and pasting machine.

The unit label is coated with adhesive on the back side and cut to the same length in advance.
A roll-shaped label continuous body, which is made by wrapping a continuous label stuck on the top surface of a tape-shaped backing paper around a cylindrical core, is usually installed inside the frame of a label printing and pasting machine or on an extension of the machine frame. It is supported by a holding part.

By continuously operating the label printing and pasting machine, a tape-shaped label continuous body is fed out from the holding part and moved forward, and printing, peeling, and pasting of unit labels on the advanced label continuous body are repeated. When the roll-shaped label continuous body is used up, the core is removed from the holding part,
Next, the rolled label continuous body wound around the new core is again attached to the holding part of the label printing and pasting machine.

In this case, the paper or plastic core that has been commonly used in the past has a simple ring-shaped cylinder, but both end surfaces and the inner diameter of the core are made of a pair of flexible plastic cores. In the case of a type of holding section in which the core is held from both sides by circular holding projections formed on each opposing surface of the arm, friction between both end surfaces of the core and the flexible arm holding the core is If the pressure is too strong, the rotation of the core becomes too heavy when the continuous label is drawn out, and the continuous label sometimes breaks.

In addition, with this type of holder, the conventional practice when replacing the winding core is to bend one side arm of the flexible holder that is being held in place outward. Only the arms were repeatedly bent beyond their flexibility limits, often deforming or breaking the arms and rendering the label printer unusable. Moreover, it was extremely difficult to replace the core.

In addition, in the case of a type of holder in which a holding mandrel that is removable from the machine frame is inserted into the inner hole of the ring-shaped core to support a continuous roll of labels, the holding mandrel is likely to become powdery. As a result, the continuous label roll could not be attached, and the label printing and pasting machine could not be used.

In addition, in the case of a type of holder in which one end of the core is loosely fitted onto a cantilever support shaft integrated into the machine frame, and the other end of the core is supported by the cover (unraveling prevention plate) of the label printing and pasting machine, When the cover is removed, the rolled label continuum tends to separate from the cantilever support shaft, and as a result, it falls onto the floor, rolls around, and unravels into pieces, making it difficult to use.

On the other hand, applying a Units label to an object using a portable label printing and pasting machine requires an action similar to swinging a hammer back and forth; Since the forward speed at which the label continuous body is unwound is significantly accelerated by the centrifugal force, the core around which the label continuous body is wound rotates too much in the direction in which the label continuous body is drawn out, and the label continuous body is unwound. As a result, the paper loosens and sag, often interfering with the normal operation of the conveying, printing, peeling, and pasting processes.
The label printing and pasting machine was malfunctioning.

Therefore, a device for the holder is provided, which is equipped with a mechanism that prevents the label printing and pasting machine from freely rotating even when it is swung around, and also maintains a constant tensile force when pulling out the label continuous body from the holder. There has been a strong desire for a core that is improved and is compatible with the device of the holder.

The present invention solves the above-mentioned drawbacks, and allows the label to be removably and reliably held by the rotating core holding member of the cantilever type core holding unit mounted inside the machine frame, and the label is continuous. The purpose of the present invention is to provide a dedicated core that is always pulled by a body with a constant force and can move together with the core holding member.

Another object of the present invention is to provide a core that can streamline the work of winding a continuous label body around the core (small winding work).

Embodiments will be described below with reference to the accompanying drawings.

As shown in FIGS. 4 and 5, reference numeral 1 is a cylindrical winding core, and a continuous label body 2 is wound around the outer circumferential surface 3 of the core 1 in the form of a roll. One edge of the inner circumferential surface of the winding core 1 is annularly convex, that is, an inner hole 6 having a smaller diameter than the inner diameter portion 5 of the cylinder is formed concentrically.

A stepped mounting portion 9 is formed by the inner peripheral surface of the inner hole 6, one side end surface 7 formed wider than the other one side end surface 4, and the back surface 8 of the one side end surface 7. There is. Near the outer periphery of the one-side end face 7, fan-shaped slip-stop recesses 10 are provided at regular intervals, and the remaining portion of the one-side end face 7 adjacent to the slip-stop recesses 10 is provided with a convex end face 11 for small winding. On the other hand, a convex portion 12 for small winding that can be engaged with a convex end surface 11 for small winding of a separate winding core 1 having the same shape is recessed. Further, the inner diameter portion 5 has a surface 1 extending in the axial direction at the same height as the inner peripheral surface of the inner hole 6.
A plurality of mandrel ribs 14 having a diameter of 3 are integrally provided on the winding core 1.

As shown in FIGS. 11 and 12, in a normal label manufacturing factory, a core 3 is inserted into the inner hole 6 of a large number of cores 1.
3 and then winding the label continuous body 2 around the outer circumferential surface 3 of each core 1, the small winding convex end surfaces 11 and the small winding recesses 12 of mutually adjacent winding cores 1 are inserted.
By engaging with each other, the winding core 1 is formed so that it cannot individually rotate idly.

Also, when inserting the core 33 into the inner hole 6,
The mandrel ribs 14 are provided radially inside the winding core 1 in order to stably guide the winding core 1 without wobbling and at the same time to facilitate the engagement of the winding cores 1 with each other.
The winding core 1 having this shape has the advantage of improving the efficiency of small winding of the continuous label body 2.

34 is a small winding working device, 35 is a mandrel 33
, 36 is the washer of the mandrel 33, 37 is the tightening nut of the mandrel 33, 38 is the center shaft supporting the mandrel 33, 39 is the bearing of the center shaft 38, 4
0 is a rotating shaft for rotating the mandrel 33, 41 is a bearing for the rotating shaft 40, and 42 is a large continuous label.

As shown in FIG. 2 and FIG.
, a core holding member 18 pivotally supported on a shaft 17 fixed to the machine frame 16, and a loosening prevention plate 19 (FIG. 10).

A circular recess 21 having a jagged surface 20 on the inner periphery is provided inside the machine frame 16, a hole 22 concentric with the circular recess 21 is bored in the machine frame 16, and the core holding member 18 is inserted into the circular recess 21. is installed.

The core holding member 18 is integrally constituted by a disk 23, a hook 24, an idling prevention protrusion 25, and a control pawl 26. The disk 23 has a hole 2 in its center.
A plurality of flexible hooks 24 are provided integrally with the disk 23 concentrically with the hole 27, and are formed by connecting the outer surfaces of the tips of the plurality of hooks 24. The outer diameter of the hook 24 is slightly smaller than the inner hole 6 of the winding core 1, and the outer diameter formed by connecting the tops of the chevron-shaped locking portions 28 provided on the outside of the hook 24 is slightly smaller than the inner diameter of the inner hole 6 of the winding core 1. The disk 23 is formed to be slightly larger than the hole 6, and has an anti-driving protrusion 25 on the outer periphery of the disk 23, and a flexible control claw 26.
are provided relatively to each other.

The shaft 17 has a pair of flexible hooks 29 formed at one end, a flange 30 at the other end, and a pair of flexible hooks 31 separated by parallel grooves. After loosely fitting the shaft 17 into the hole 27 of the core holding member 18, the hook 31 is attached to the machine frame 1.
6 into the hole 22 and fix it to the machine frame 16. The disc 23 of the core holding member 18 is attached to the flange 3 of the shaft 17.
0 and the inner surface of the machine frame 16, while the control claw 26 engages with the jagged surface 20 with appropriate pressure,
The core holding member 18 is configured so that its rotation is controlled.

As shown in FIG. 9, align the inner hole 6 of the core 1 with the plurality of hooks 24 of the core holding member 18, and then align the slip prevention recess 10 with the slip prevention protrusion 25 of the core holding member 18. Then, by bringing the inner hole 6 into contact with the chevron-shaped locking portion 28, and then pushing the winding core 1 while bending the hook 24 inward, the chevron-shaped locking portion 28 will return to its normal position due to its elasticity. The chevron locking portion 28
By locking the back surface 8 of the mounting portion 9,
The rolled label continuous body 2 can be integrally attached to the core holding member 18.

Contrary to the above, if the winding core 1 is pulled in the axial direction,
Since the mounting portion 9 comes off from the hook 24, the winding core 1
can be easily removed from the core holding member 18.

Note that the anti-unraveling plate 19 is attached to the opposite side of the machine frame 16, sandwiching the continuous label body 2.
The hook 2 of the shaft 17 is inserted into the hole provided in the plate 19.
9 is inserted and locked.

As mentioned above, the core of the present invention has a step-shaped attachment part on one edge of its inner peripheral surface that can be detachably engaged with a core holding device such as a label printing and pasting machine.
The core can be easily attached and detached, and it is securely held in the core holding device to prevent the roll-shaped label continuous body from accidentally coming off and falling. Because they move together, the appropriate amount of rotational friction prevents the core from rotating too much and causing the label continuous body to sag during label application, and maintains a constant tension at all times. It is rolled out while maintaining the .

Furthermore, since it is attached to a cantilever-type core holding device, the core rotates more smoothly and the continuous label roll is smoothly fed out compared to the conventional holding device that holds the core from both sides. be.

Furthermore, since the mandrel ribs are provided on the inner circumferential surface of the winding core, each winding core fits snugly into the mandrel without wobbling during small winding work, and as a result, the adjacent winding cores can be easily engaged, and
The winding of the label continuous body can be done smoothly, and the efficiency of small winding work can be improved.

[Brief explanation of the drawing]

Figure 1 is a side view of a label printing and pasting machine equipped with a continuous label roll wound around a core of the present invention, Figure 2 is a side view of a core holding device that holds the core, and Figure 3 is A partial side view with the anti-unraveling plate of FIG. 1 removed, showing a state in which the core holding device holds the core around which the label continuous body is wound;
Figure 4 is a front view, vertical sectional view, and back view of the core from left; Figure 5 is a perspective view of the core; Figure 6 is an exploded view of the core and core holding device; Figure 7 is the label. FIG. 8 is a perspective view of the rolled label continuum wound around the core of FIG. 6;
FIG. 9 is a sectional view showing a state in which the core holding device is holding the core, and FIG. 10 is a view taken along arrow A-A in FIG. 1.
11 is a sectional view taken along the line, and FIG.
The figure shows a state in which a large-rolled label continuous body is rolled into a small roll. In the figure, 1: core, 2: label continuous body, 3: outer peripheral surface, 9: mounting portion, 14: mandrel rib, 15: core holding device.

Claims (1)

[Scope of utility model registration request] A cylindrical winding core around which a label continuous body is wound around the outer circumferential surface, and an inner hole having a smaller diameter than the inner diameter of the inner circumferential surface is formed at one edge of the inner circumferential surface for label printing and pasting. A step-like mounting part is provided that can be elastically and detachably locked to a core holding device of a machine, etc., and a plurality of step-shaped mounting parts are provided on the inner circumferential surface of the machine and are formed at the same height as the inner hole along the axial direction. A core of a continuous label body characterized by having core ribs.