JPH0285132A - Label feeding apparatus for automatic label attaching machine - Google Patents

Abstract

PURPOSE:To prevent an excessive feeding of labels by providing a tension arm having at its end a tension roller around which a sequence of labels is passed and which is brought into frictional contact with the peripheral edge of a feed reel to control its momentum after the label feed. CONSTITUTION:A feed reel 10 for feeding a sequence of labels 1 is provided with a supporting point 13 and an eccentric supporting point 15 and with a tension arm 14 having a tension roller 16 at its end. This tension roller 16 is elastically energized by a spring 18 in the label feeding direction. The sequence of labels 1 is fed in succession with the tension arm 14 forced downward against the elasticity of the spring 18. When this tension arm 14 is returned to the original upward position by the elastic force of the spring 18, the tension roller 16 is brought into frictional contact with the peripheral edge 17 of the feed reel 10 to apply a braking force to the momentum of the feed reel 10 in order to prevent the excessive label feeding.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention particularly relates to an automatic label pasting machine that can automatically paste labels with desired printing onto articles conveyed by a conveyor or the like. The present invention relates to a label feeding device in this automatic label pasting machine.

(Prior Art) Conventionally, as a prior art of this type of label feeding device, for example, a device described in Japanese Utility Model Publication No. 53-42480 (Label Peeling Device) can be mentioned. Referring to the same publication, this prior art is a device that is set between a continuous label body wound into a roll and a printer, and is a rotating damper lever having a guide roller (21) at the tip. (20), a brake lever (16) is associated with the spool (1), a spring (22) is interposed between these levers (20) and (16), and a damper lever (2
0), a microswitch (23) is disposed within one operating track.

As a result, when the tape-shaped mount (5) is pulled out, the tension of the mount increases momentarily, or the damper lever (20) swings in the direction of weakening the tension, thereby preventing the accident of cutting one mount. Immediately after the tape-like mount (5) is pulled out, the force of the spring (22) causes the brake lever (16) to swing in the direction of increasing the braking force on the spool (1). By applying sufficient tension to the backing paper (5) to peel off the label (4),
You can give it to someone. Furthermore, from the spool (1) to the mount (
5) is fully pulled out, the damper lever (2)
0) or by switching the contacts of the micro switch (23), an alarm that the mount (5) is missing can be issued,
Turn off the power to the linked label pasting device or 0T! This means that heavy work should not be overlooked.

(Problem to be solved by the invention) - In the conventional prior art described in 1-1, especially regarding the brake device, the rotational inertia of the spool (1) due to the pressure contact force between the brake drum (3) and the brake shoe (19) is suppressed. In other words, in addition to H, which has a complicated device, the brake tram (3) is in pressure contact with the shaft (2) of the spool (1) with a small shaft diameter.
) and the brake shoe (19), the friction is suppressed to a small extent and the efficiency is poor.

Therefore, an object of the present invention is to provide a label dispensing device that is simple, has a large friction control, and has an efficient braking function.

(Means for Solving the Problems) In the present invention, at the time when the continuous label body is fed out from the supply reel, the tension roller is displaced in the direction of expansion and contraction of the transport path length, thereby reducing the resistance at the start point of label feeding. In addition, a means for suppressing excessive rotation of the supply reel is also added.

Specifically, the supply reel 10 portion of the label continuous body 1 is provided with a tension arm 14 having a fulcrum 15 eccentric to the fulcrum 13 of the supply reel and having a tension roller 16 at its tip, and this tension roller 16 is always , a state in which the 5 springs 18 are elastically biased in the direction of extending the transport path length of the continuous label body 1 (label feeding direction), and the tension roller 16 forms the longest transport path length in the feeding direction of the continuous label body 1. In the above, the supply reel 10
A brake device f@ is configured so as to come into frictional contact with the peripheral edge 17 of the supply reel, and prevent surplus labels from being fed out due to inertial rotation of the supply reel.

(Function) A continuous label body l, which is formed by temporarily attaching label pieces 2 at equal intervals on a tape-shaped mount 3, is wound around a supply reel 10.

This label series l is thus printed in the printing section 40 of the printer 4.
When the label is transported to a warehouse, it is suspended in a bent state by guide rollers 19, 20 mounted at fixed positions and a tension roller 16 mounted on the tension arm 14 which is movable downwardly, or is fed out. continuum 1
When pulling out, tension is instantaneously applied to this label continuous body l. This instantaneous tension is caused by the tension roller 16
It is absorbed by the label and acts as a predetermined label feeder. That is, the tension of the label continuous body L is increased by the elastic force of the spring 18, so that the tension is L rising Xi! The continuous label l can be instantaneously spelled out by pressing down the tension arm 14 (see Fig. 4) against the elasticity of the spring 1B (see Fig. 4) of i (see Fig. ij). .

The tension arm 14 thus pushed down is then returned to its original raised state by the elastic bias of the spring 18. At this time of return, the tension roller 16 comes into frictional contact with the peripheral edge 17 of the supply reel 10 in the raised position where the tension roller 16 forms the longest transfer path length, and the inertial rotation of the supply reel 10 is braked. Operate the machine to prevent excess labels from being fed out.

(Example) A label feeding device in an automatic label pasting machine of the present invention shown in FIGS. 1 to 4 will be explained.

First, referring to FIG. 1 showing the overall configuration, a supply reel 10 winding a continuous label body L formed by temporarily attaching labels 2 at equal intervals on a tape-shaped mount 3 is attached to a bracket of a printer 4. At the support arm 12 fixed to the boss 1
It is fixedly held at 1. The fulcrum 13 of the supply reel 10 is the center of the boss 11.

Next, a tension arm 14 having a tension roller 16 that suspends the label continuous body 1 on this support arm 12
The arm 14 is movable up and down, and the arm fulcrum 15 is at a different position from the reel fulcrum 13, and both fulcrums 13 and 15 are eccentric. Furthermore, the boss of this tension arm 14 has a spring 1B (fourth
(see figure) is interposed, and the tension arm 14 is constantly held by the elastic force of this spring 18.

It is elastically biased to the push-up position. That is, the tension roller 16 on which the label continuous body l is suspended is always positioned in the direction of extending the transport path length of the label continuous body l (see FIG. 2), and in this push-up position, the tension roller 16
As described above, this arm fulcrum 15 is offset from the reel fulcrum 13 so that the outer periphery of the reel is in pressure contact with the reel periphery 17 of the supply reel 10 (see FIGS. 1 and 4 [J). It is the composition.

A guide roller 19 is attached to the support arm 12, and guide rollers 20, 21, 22, etc. are attached to the bracket 5, and the continuous label l fed out from the supply reel 10 is stably moved to each next stage. It is configured to be fed into the device.

Next, in order to explain the configuration of each member including each device, it will be easier to understand if the transportation route of the continuous label body 1 is explained below as a foreground.

The means for transporting the label series I is usually the traction action of a traction roller 31 driven by the rotation of the motor 6. This label series l is thus guided by the guide rollers 20, 21.2.
2, a label sensor 23, a thermal head 41 which is a label printing unit 40, and a platen roller 4.
2. The label continuous body 1 on which desired printing has been performed in this portion passes through a label peeling position adjustment member 70 with a pair of turning rollers 24 and 25, and reaches a label peeling section 26 consisting of a rotating turning bin. Hereinafter, referring to FIG. 6 in part, the label piece 2 is peeled off due to the turning of the tape-like mount 3, and the article 9 is loaded onto the conveyor 80 and transported.
0, and in this labeling, there is a pressing action of the labeling member 50. This operation is a rotational depression operation of the labeling member 50 due to the protrusion of the plunger 52 of the solenoid 51.

Next, the label continuum l after attaching the label piece 2 to the article 90
is a tape-like mount 3, and guide rollers 27, 28, 2
After 9.30, the pulling roller 31 and the pressure roller 32 are removed.
The film is then wound onto a take-up reel 34 attached to a take-up shaft 35.

Next, the smooth feeding of the label continuous body and the effect of the brake function on the supply reel 10 of this apparatus will be explained.

This supply reel IO is placed on a tape-shaped mount 3.

A continuous label body 1 consisting of labels 2 temporarily attached at equal intervals is wound.

In this way, the label continuous body 1 is suspended on the movable tension roller 16 and pulled by the platen roller 42 having a driving source, or by the tape-shaped mount 3 or the pulling roller 31 to form the continuous label l. is fed out from the supply reel 10. This label continuum l
When pulling, tension is instantaneously applied to this label continuous body l. However, this tension is
The pressure is absorbed by the tension roller 16 being displaced by the pushing action against the elasticity of the spring 18 of No. 4, and the continuous label body 1 is smoothly fed out. The state of this tension roller 16 is shown in the figure.
Before the start, it is in the ascending position shown in Figure 2, and after the start, it is in the 3rd position.
This is the lowered position shown in the figure.

Next, the tension roller 16 in the state shown in FIG. 3 is pressed down.
is the tension arm 1 due to the elastic bias of the spring 18.
4 is restored to its original position (as shown in FIG. A braking action is performed to prevent inertial rotation of the supply reel 10 due to frictional contact of the tension roller 16 with the peripheral edge 17 of the supply reel 10 caused by eccentricity of the tension roller 16 with respect to the fulcrum 15.

Next, various devices that are used in this automatic labeling machine will be explained.

The bracket 5 of the printer 4 is roughly divided into a motor 6 which is a driving source for label transport, a label sensor 23 connected to the motor 6 and which detects the label piece 2 on the label continuous body l, and a label sensor 23 which is connected to the motor 6 and which detects the label piece 2 on the label continuous body l. Thermal head 4 which is printing section 40
1. The platen roller 42, the solenoid 51 that controls the pressing operation of the labeling member 50 that applies the label to the article 90, and the adjustment member that adjusts the peeling position of the label piece 2 temporarily attached to the tape-shaped mount 3. 70 etc. are equipped.

Next, referring to FIG. 1, FIG. 5, and FIG. 6, the pasting roller 60 when pasting a label on an article 90 that is carried on a conveyor 80 suspended by a pair of pulleys 81 and 82 and transported.
That is, the pressing device for the label sticking member 50 will be explained first.

To summarize this device, the solenoid 51 connected to the article sensor 23 installed on the conveyor 80 is connected to the sensor 23.
3, the plunger 52 is actuated (projected), and as a result, the labeling member 50 is pushed down about the pivot 55 and is attached to the conveyor 80.
The present invention is characterized in that the label pieces 2 separated by 'A' are pasted by the pasting roller 60 onto the article 90 that is transported after being undulated. The label pasting member 50 has a solenoid 5 connected to an article sensor 83 that detects the arrival of an article 90 attached to a frame of a conveyor 80.
Either one or two are installed. Specifically, as shown in FIGS. 5 and 6, the plunger 52 of the solenoid 51 faces a receiving portion 54 of a rotary plate 53 that moves integrally with the labeling member 50. This rotating plate 53 is rotatable about a pivot 55, and is biased clockwise by a spring 56 interposed in this pivot 55, so that the receiving portion 54 is connected to the solenoid 5.
It is in contact with the plunger 52 of No. 1. Furthermore, a label peeling section 26 consisting of a rotating turning pin is attached to the tip of this rotary plate 53, and this label peeling section 26
The label piece 2 temporarily adhered to the mount 3 is peeled off by turning the tape-shaped mount 3 at the holder 3.

Further, at the tip of the label sticking member 50, there is a sticking roller 60 for sticking the peeled off label piece 2 to the article 90.
is attached to the support shaft 57, and a support plate 58 provided inside
A vertical slit 59 for guiding the support shaft 57 is formed in the label, so that the label can be reliably pasted onto the article 90 by the pasting roller 60.

When the article sensor 83 detects the article 90 loaded and transferred on the conveyor 80, this detection signal is transmitted to the solenoid 51. Then, the solenoid 51
It is displaced from the demagnetized state shown in the figure to the excited state shown in FIG. That is, by the displacement (protrusion) of the plunger 51, the label sticking member 50 is displaced from the horizontal state shown in FIG. 5 to the depressed state shown in FIG.

The label sticking member 50 rotates counterclockwise around the pivot shaft 55 against the elasticity of the spring 56, so that the sticking roller 60 presses the peeled label piece 2 onto the transferred article 90. Attach by rotating.

Next, referring to FIGS. 1 and 7, a device for adjusting the label peeling position in the distance between the printing section 40 and the label peeling section 26 will be explained.

To summarize this device, a pair of turning rollers 24 and 25 are provided between a printing section 40 consisting of a thermal head 41 and a platen roller 42 and a label peeling section 26 for expanding and contracting the transport path length of the continuous label body 1. The present invention is characterized in that a label peeling position adjustment member 70 is provided which can be rotated. This adjusting device displaces the peeling position of the label piece 2 temporarily attached to the tape-like mount 3 depending on the difference in the width dimension.

It consists of a printing unit 40 of the printer 4 and a label peeling unit 26 that peels off the label with a turning bin in accordance with the width dimension of the label piece 2.
The length of the label continuum l is adjusted between .

That is, as shown in detail in FIG. 7, turning rollers 24 and 25 for the label continuous body l are provided at the upper and lower parts of the adjustment member 70, which is rotatable left and right about a pivot shaft 71 attached to the bracket 5 of the printer 4 as a fulcrum. are attached respectively, and this axis 7
It is fixed to one part with an adjustment screw 72.

Therefore, this adjustment member 70 is displaced by turning it left and right, and it can be rotated freely by loosening this adjustment screw 72, and after setting it at the desired adjustment position, it is only necessary to tighten this adjustment screw 72 again. , to explain a specific adjustment method with reference to FIG. The length becomes shorter. In this manner, by varying the length of the label continuous body 1 in the prescribed section according to each label width dimension, the peeling position of the label piece 2 can be adjusted to the optimum position.

In addition, in adjusting the wide label peeling position, if the reversal angle of the continuous label l suspended between the pair of turning rollers 24 and 25 attached to the adjusting member 70 is steep, the turning rollers 24 and 25 may be It is better to avoid setting a steep angle as this may cause the label to peel off. In other words, in Fig. 7, the extension line of the pivot point of the pair of turning rollers 24 and 25 is tilted from the right to a state close to vertical. Adjustment settings are desirable.

Next, as shown in FIG. 1, in the label peeling section 26, the label piece 2 is peeled off from the tape-shaped mount 3 to issue each leaf of the label for use, as in the normal use state, and In order to create a configuration in which the label issuing state can be selected between continuous printing of labels in which the label pieces 2 are temporarily attached to the tape-shaped mount 3 and the label issuing state can be selected, a platen roller 42 that feeds out the continuous label body 1 and a tape-shaped mount are required. The configuration may be such that a rotational drive source is applied to both the pulling roller 31 that pulls the roller 3 and the pulling roller 31 .

Specifically, the motor 6 is connected to the pulley 7a of the platen roller 42 via the transmission medium 7, and the traction roller 3 is connected to the pulley 7a of the platen roller 42 via the transmission medium 8.
The structure is such that the drive is transmitted to the first pulley 8a.

In addition, to summarize this label issuing device, the platen roller 4
2 and the pulling roller 31 are both equipped with rotational drive sources, and the continuous printing of label pieces 2 or temporary labels on the tape-shaped mount 3 and the printing of labels every time the label pieces 2 are peeled from the tape-shaped mount 3 are provided. It is characterized by being configured so that either one can be selectively issued.

In FIG. 1, the thermal head 41 is disposed opposite to the platen roller 42, and when the continuous label l is set, the thermal head 41 is placed opposite to the fixed platen roller 42.
The structure is such that one side rotates to form a label passage.

Specifically, when this thermal head 41 is printing, it is pressed against the platen roller 42 by a pressing spring 44, and when setting a label, it is rotated clockwise about the rotation fulcrum 43 to form a label path. This opening operation is performed by the opening spring 45.

Next, details of the opening operation of this thermal head opening/closing device will be explained with reference to a side view of the thermal head portion shown in FIG. The thermal head 41 is opened by rotating the operating handle 46 counterclockwise, which is attached to the end of an L-shaped opening/closing lever 47 associated with the head frame 41a to which the thermal head is attached. Thus, the opening/closing lever 47 is rotated counterclockwise about the lever fulcrum 48 against the elasticity of the spring 47a. Then, the engagement recess 47b separates from the engagement pin 49 set on the head frame 41a. That is, the head frame 41a and the thermal head 41 connect their engagement pins 49 to the engagement recess 47b of the opening/closing lever 47.
The thermal head 41 is guided by the tapered guide surface 47c connected to the platen roller 42 and rotates clockwise about the rotation fulcrum 43, so that the thermal head 41 is separated from the platen roller 42 and the label is placed between the two members. Form a passage.

Further, the thermal head 41 can be closed after the label continuous body 1 has been inserted into the label passage formed between the thermal head 41 and the platen roller 42 by operating the operating handle 46 in the opposite direction. The head frame 41a is rotated clockwise, pushing the tapered guide surface 47c or the engagement pin 49, and the head frame 41a is rotated counterclockwise against the elasticity of the release spring 45, so that the engagement pin 49 moves into the engagement recess. Place 4
7b, the thermal head 41 is brought into pressure contact with the platen roller 42.

Furthermore, the pressure roller 32 provided opposite to the traction roller 31 also
When the tape-shaped mount 3 is set, the pressure roller 32 rotates to form a mount path. This pressure roller 3
2 is moved by an operating handle 33.

(Effects of the Invention) According to the label feeding device of the present invention, the fulcrum 13 of the supply reel 10 of the continuous label body 1 and the fulcrum 15 of the tension arm 14 on which the tension roller 16 is mounted can be set eccentrically. Furthermore, since the arm 14 is elastically biased in the direction of extending the transport path length for label feeding, the arm 14 is wound around the supply reel 10 and the tension roller 16
Even if the label continuous body 1 suspended in the
The tension is absorbed by the displaceable tension roller 16. Furthermore, in order to prevent excessive feeding of the label continuous body due to excessive rotation of the supply reel 10 that occurs in the next stage of operation, the tension roller 16 is applied to the peripheral edge 17 of the supply reel 10 caused by the eccentric configuration of the fulcrums 13 and 15. Since it can be suppressed by frictional contact between the brakes, it has the advantage that the device is simple and its braking function is efficient.

[Brief explanation of the drawing]

The drawings all show the automatic label pasting machine of the present invention; Figure 1 is an overall side view showing the overall configuration of the machine, and Figures 2 to 4 are illustrations of the operation of the label feeding device of the present invention. , Figure 2 is the same, state diagram of the label feeding section of the device, Figure 3 is the same,
FIG. 4 is a side view of FIG. 2, and FIGS. 5 and 6 are explanatory diagrams showing the pressing operation of the affixing member when affixing a label to an article. Fig. 6 is a state diagram before the push operation, Fig. 7 is an explanatory diagram of the operation of the label peeling position adjustment device, and Fig. 8 is an explanatory diagram of the opening/closing device of the thermal head portion. . l...Label continuum, 4...Printer, 10.
... Supply reel, 13... Reel fulcrum, 14.
...Tension arm, 15...Arm fulcrum. 16... Tension roller, 17... Reel periphery, 18... Spring,
26... Label peeling section, 4o... Printing section, 50...
...Label sticking member, 60... Sticking roller, 70... Adjustment member,
80...Conveyor, 9o...Goods. Figure 2

Claims (1)

[Claims] The supply reel portion of the label continuous body is provided with a tension arm having a fulcrum at a position eccentric to the fulcrum of the supply reel, and having a tension roller at the tip end thereof for suspending the label continuous body, and the tension roller is constantly operated. , in a state where the tension roller is elastically biased in a direction to extend the length of the transport path of the continuous label body, and the tension roller forms the longest transport path length in the direction of extending the length of the transport path of the continuous label body. A label feeding device for an automatic label pasting machine, comprising a brake function that comes into frictional contact with the periphery of the supply reel to prevent surplus labels from being fed out due to inertial rotation of the supply reel.