JPH0691212A - Label pasting device - Google Patents

Abstract

PURPOSE:To ensure that an optimal pasting condition is constantly maintained and reliability is enhanced to optimize the delicate adjustment of a paste amount by providing a control device which restricts the rocking of a blade device due to a drive device and adjusts a clearance between the blade device and the outer periphery of a pasting roller. CONSTITUTION:This label pasting device 1 is composed of a pasting roller 4 for applying paste to the peripheral surface and a blade device 6 with an adjustable clearance between the peripheral surface of the pasting roller 4 and the blade device 6. Thus, the thickness of paste sticking to the peripheral surface of the pasting roller 4 is adjusted by a clearance between the peripheral surface of the pasting roller 4 and the blade device 6. In addition, the device is equipped with a paste amount detection device 24 for detecting the paste amount on the pasting roller 4, a speed detector 22 for detecting the revolution speed of the pasting roller 4 and a servo motor 8 for rocking the blade device 6 forward toward and backward from the peripheral surface of the pasting roller 4. A control device 23, receiving a signal from the paste amount detection device 24 and the speed detector 22, controls the rocking caused by the servo motor 8, and adjusts a clearance between the blade device 6 and the peripheral surface of the pasting roller 4 in accordance with the paste amount and the revolution speed of the pasting roller 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gluing device for a labeler, and more specifically, a blade device is swung forward and backward so that the thickness of gluing of a gluing roller on the outer peripheral surface of which can be adjusted. The present invention relates to a labeling device for a labeler having a drive device.

[0002]

2. Description of the Related Art A conventional gluing device is manually adjusted by a manual knob. A gluing roller to which gluing is attached to the outer peripheral surface; and a blade that is provided so as to be able to move back and forth toward the outer circumferential surface of the gluing roller and that has a gap adjustable with the outer circumferential surface of the gluing roller. In a sizing device configured to adjust the thickness of the sizing adhered to the outer peripheral surface of the sizing roller by the distance between the outer peripheral surface of the sizing roller and the blade, a detector for detecting the rotation speed of the sizing roller. And driving means for moving the blade forward and backward toward the outer peripheral surface of the gluing roller, and controlling the driving means by inputting a signal from the detector, in accordance with the rotation speed of the gluing roller. A gluing device provided with a controller for adjusting the distance between the blade and the outer peripheral surface of the gluing roller (see Japanese Patent Laid-Open No. 64-85166).
Exists.

[0003]

However, in the above-mentioned prior art, the manual adjustment using the knob has a problem that the adjustment is required every time the conditions such as the ability, the quality of label paper, the temperature and the glue are changed. . Further, the thickness of the adhesive adhered to the outer peripheral surface of the gluing roller, that is, the distance between the outer peripheral surface of the gluing roller and the blade is usually a high-speed operation speed when the gluing device is operating normally. Although it will be set as a reference, especially when the speed of the gluing device is increased and the speed difference between the low speed operation and the high speed operation becomes large as in recent years, the amount of glue supplied during the low speed operation of the gluing device becomes large. There is a shortage and defective adhesion occurs. In order to solve this drawback, a detector for detecting the rotation speed of the sizing roller of the sizing device, a driving means for moving the blade forward and backward toward the outer peripheral surface of the sizing roller, and a signal from the detector are input. Then, a control device is provided for controlling the driving means and adjusting the interval between the blade and the outer peripheral surface of the gluing roller according to the rotation speed of the gluing roller. This is to control the driving means for linearly moving back and forth according to the rotation speed of the gluing roller, and the parameter to give feedback is only the rotation speed of the gluing roller. Since it is necessary to adjust the distance between the attached roller and the blade by linearly moving back and forth, fine adjustment cannot be handled unless the movement of the drive means is made minute, which makes it very difficult to automate. There was a point. From the above, as the speed of labelers progresses, the factor due to capacity fluctuations becomes
This greatly influences the adjustment work of the gluing roller, increasing the burden on the operator. Even if the labeler reduces the labor of operating the labeler, there is work related to the gluing roller, so that the machine cannot be unmanned. Moreover, since adjusting the gluing roller requires a high level of technology,
There was a problem that the reliability of the entire labeler was not stable. In view of these circumstances, the present invention detects and feeds back the parameter to be fed back by detecting at least two of the glue amount and the rotation speed of the gluing roller, and further, by swinging the movement of the blade device to move back and forth, Even if the amount of movement of the drive device is large, the movement of the blade device itself
It is an object of the present invention to provide a labeler gluing device that can be made minute.

[0004]

In order to solve the above-mentioned problems, the present invention is directed to a labeler gluing device in which a gluing agent is attached to the outer peripheral surface of the gluing device, and to the outer peripheral surface of the gluing roller. And a blade device capable of adjusting the distance from the outer peripheral surface of the gluing roller, and adjusting the thickness of the glue adhered to the outer circumferential surface of the gluing roller to the outer circumferential surface of the gluing roller. And a sizing device adapted to be adjusted by the distance between the blade device, a sizing amount detecting device for detecting a sizing amount in the sizing roller, and a speed detector for detecting a rotation speed,
Aiming the blade device toward the outer peripheral surface of the gluing roller,
A drive device for swinging forward and backward, a signal from the glue amount detection device and a speed detector are input to control the swing by the drive device, and the blade is determined according to the glue amount and the rotation speed of the gluing roller. The technical means of providing a control device for adjusting the distance between the device and the outer peripheral surface of the gluing roller is adopted.

[0005]

As a result of adopting the above technical means, the present invention has at least two parameters to be fed back, so that a more appropriate amount of glue can be obtained. Furthermore, since the drive device has a swinging mechanism that can finely adjust the distance between the gluing roller and the blade device, even if the drive device moves greatly,
The movement of the blade device itself can be reduced, and it is possible to finely adjust the gap between the gluing roller and the blade device.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. 1 is a side view of a main part of a gluing device for a labeler showing an embodiment of the present invention, and FIG. 2 is a front view of a main part with a partial cross section taken along arrow A in FIG. 3 is a fragmentary front view in which a part of the arrow B in FIG. The gluing device 1 includes a rotating shaft 3 vertically erected on a frame 2, a gluing roller 4 rotatably supported by the rotating shaft 3, and a glue for supplying glue to the outer peripheral surface of the gluing roller 4. And a container 5. A part of the sizing container 5 is cut in the vertical direction and opened to the outside. By disposing the sizing roller 4 in the center of the opening, the outer peripheral surface of the sizing roller 4 and the opening are formed. The opening is closed in a state where a space is formed between the opening and the. A blade device 6 for closing the gap is provided on the frame 2, and the blade device is configured so as to oppose the rotation direction of the sizing roller 4 around the sizing container 5 as a center. It is provided so that it can be swung back and forth by a drive device in a state of being in contact with the outer peripheral surface of the gluing roller 4 or in a state of having a minute gap so that the glue does not leak outside. Next, one embodiment of the configuration in which the blade device 6 swings to adjust the clearance between the blade device 6 and the gluing roller 4 will be described. The first bracket 7 attached to the frame 2 has a servo functioning as a drive device. Motor 8 and servo motor 8
The blade adjusting eccentric cam 10 is connected to the speed reducer 9 via the rotary shaft of the. The swing plate 11 is swung by the blade adjusting eccentric cam 10. The swing plate 11 is provided with a stopper adjusting screw 12 (which may be fixed) and a pressing plunger 13 in which a spring is incorporated on the side opposite to the blade adjusting eccentric cam 10. It is fixed to the bracket 14. further,
A blade frame 17 is provided at the end of the swing plate 11 opposite to the side that engages with the blade adjusting eccentric cam 10 and is rotatable about a rotating shaft 16 having a replacement knob 15. An appropriate number of initial setting knobs 18 are provided on the blade frame 17. A blade plate 19 is provided on the blade frame 17 and is configured to swing by the blade adjusting eccentric cam 10. The blade plate 19 of the blade device 6 is provided to face the gluing roller 4 as shown in the drawing.
Further, in the figure, 20 is a blade frame 17 and a blade plate 1
It is a fixture for attaching and fixing 9. Since it is configured as described with reference to FIGS. 1 to 3, the gluing roller 4
Control device 23 that receives the signals of the detected amount of glue and the rotation speed
The servo motor 8 is driven by the signal resulting from the calculation result of (see FIG. 5), the blade adjusting eccentric cam 10 is rotated via the speed reducer 9, and swings against the pressing force of the pressing plunger 13. The moving plate 11 is rocked, and the rocking plate 1
By the swing of 1, the blade device 6 via the rotary shaft 16,
Above all, the blade plate 19 swings to finely adjust the distance between the blade plate 19 and the gluing roller 4. Furthermore, the specific and other functions of each member will be described. The blade adjusting eccentric cam 1
0 is provided with a notch 21 so that the blade device 6 can be easily replaced, and is achieved by positioning the notch 21 on the rocking plate 11 side.
The stopper adjusting screw 12 is empirically provided for stopping so as to regulate the swing amount by the mounting relationship between the blade device 6 and the gluing roller 4.
The purpose is to prevent damage to the gluing device 1. In this way, the gap between the tip end of the blade plate 19 of the blade device 6 and the gluing roller 4 can be adjusted to be optimal, so that the glue that adheres to the outer peripheral surface of the gluing roller 4 can be attached via the transfer roller. An optimum amount of glue can be applied to a label (not shown) conveyed by a drum. next,
As shown in FIGS. 4 and 5, an embodiment of control will be described. The gluing roller 4 is interlocked with a motor (not shown). A speed detector 22 (which may be called a capability meter) for detecting the rotation speed of the gluing roller 4 is provided on the drive shaft of the motor, and a signal from the speed detector 22 is appropriately supplied. The input is made to the control device 23 provided at the place.
Further, the amount of glue of the glue amount detection device 24 (for example, an infrared moisture meter or the like, which uses a high-frequency type, photoelectric type, or capacitance type inspection device clarified in Japanese Patent Publication No. 2-57017). It is possible to empirically correct the amount of glue based on the detected value of ## EQU1 ## and a command is given to the servo motor 8 based on the corrected amount to cause the blade plate 19 to perform optimum swing. It is a thing. Furthermore, for the sake of accuracy, as shown in FIG. 4, data 2 corresponding to the type of glue, temperature, humidity, and capacity (rotation speed)
5 is input to the control device 23, and the detected values from the temperature detector 26 and the humidity detector 27 that match the actual operating conditions are input to the control device 23 to perform comprehensive calculation and control. It is possible to control the amount of glue accurately.

From the above, if the basic data is established, the temperature, the glue type, etc. are input and set in advance as initial parameters, and by keeping them constant, the label inspection apparatus may be considered as a confirmation element. It will be. Therefore, the only variable is the ability (rotational speed), and based on this, the glue amount detection device confirms and feeds back. Although the labeler has been described, it is needless to say that other than the labeler, it can be modified and applied to an apparatus relating to the application of an adhesive or ink.

[0008]

As a result of adopting the above configuration, the present invention provides
The following effects can be obtained. (1) It is possible to always maintain the optimum gluing state from the setting of initial parameters and the detection data of each detector. (2) High reliability because the amount of glue is directly measured and detected. (3) Since the connecting mechanism for adjusting the gap between the gluing roller and the blade device is not a linear advance / retreat like the conventional one, but an oscillating advance / retreat, a large amount of movement results in a small amount of movement. It can be converted and is the best for fine adjustment of the amount of glue.

[Brief description of drawings]

FIG. 1 is a schematic side view of a gluing device according to an embodiment of the present invention.

FIG. 2 is a front sectional view taken along arrow A in FIG.

3 is a front sectional view taken along the arrow B in FIG.

FIG. 4 is an explanatory diagram showing an example of data input to the control device of the present invention.

FIG. 5 is a block diagram of a control device according to the present invention.

[Explanation of symbols]

1 ... glue device 2 ... frame 3 ... rotating shaft 4 ... glue roller 5 ... glue container 6 ... blade device 7 ... first bracket 8 ... servo motor 9 ... reducer 10 ... Eccentric cam for blade adjustment 11 Oscillating plate 12 Adjustment screw for stopper 13 Plunger for pressing 14 Second bracket 15 Replacement knob 16 Rotating shaft 17 Blade frame 18・ ・ ・ Initial setting knob 19 ・ ・ ・ Blade plate 20 ・ ・ ・ Fixing tool 21 ・ ・ ・ Notch section 22 ・ ・ ・ Speed detector 23 ・ ・ ・ Control device 24 ・ ・ ・ Glue amount detection device 25 ・ ・ ・ Data 26 ・ ・ ・ Temperature detector 27 ... humidity detector

Claims (1)

[Claims] 1. A gluing roller having gluing on its outer peripheral surface,
A blade device that is provided so as to be able to move forward and backward toward the outer peripheral surface of the gluing roller, and has a blade device that can adjust the distance from the outer peripheral surface of the gluing roller. In a sizing device configured to adjust the size of the sizing roller by the distance between the outer peripheral surface of the sizing roller and the blade device, a sizing amount detecting device for detecting a sizing amount of the sizing roller and a speed detection for detecting a rotation speed. Device, a drive device for swinging the blade device forward and backward toward the outer peripheral surface of the gluing roller, and signals from the glue amount detection device and the speed detector are input to swing the drive device. A labeler gluing device, comprising: a controller for controlling and adjusting a gap between the blade device and an outer peripheral surface of the gluing roller according to a glue amount and a rotation speed of the gluing roller.