JP5070020B2 - Bundling device - Google Patents

Description

  The present invention relates to a binding device for marking information such as an identification management symbol of an object to be bound on a strap for binding a coiled object to be bound using a laser beam.

As a method of displaying the product control number etc. on the surface of the strap that binds the object to be bound such as a coil, an automatic stamping machine that stamps and stamps the stamping punch on the steel plate surface, and a laser marking device using laser light and so on.
However, the automatic stamping machine has disadvantages that it cannot cope with the generation of noise, the consumption of the stamping punch, and the change in the character size and the stamping direction. Therefore, a method using a laser marking apparatus in which the engraved state is clear and easy to automate has been studied.

In relation to such a laser marking technique, for example, Patent Document 1 (Japanese Patent Laid-Open No. 57-142785) discloses a laser beam generator and a device on a gantry straddling above a material conveyance line. A moving carriage equipped with a scanning device that automatically scans the irradiated beam is installed. The moving carriage is provided with a positioning material detection sensor, and the scanning device is provided with a distance setting sensor for the material surface. An automatic marking device is described in which a laser beam is scanned and marked by an automatic control device that electrically controls a moving carriage and a scanning device.
Patent Document 2 (Japanese Patent Laid-Open No. 2007-50903) discloses an annular strap chute that supplies a strap so as to circulate around the object to be bound, and an outer peripheral surface of the strap that is supplied to the inside. Exposing means for allowing a part of the strap to be exposed to the laser beam, a positioning device for positioning the exposed strap at a predetermined position, and the laser beam emitting port facing the outer peripheral surface of the strap in the positioned state A bundling device comprising a laser printing device provided in this way is described.
JP-A-57-142785 JP 2007-50903 A

However, in the automatic marking device of Patent Document 1, in the operation of manually scanning and inputting a high-definition figure, in addition to not being able to visually confirm the input position, the marking is performed while taking the timing of laser oscillation with the scanning device. The exchange of data has become complicated, and there has been a problem that it is necessary to control the mobile carriage with high accuracy.
In addition, although the binding device of Patent Document 2 performs positioning in the width direction of the strap, it does not have a pressing mechanism that holds the laser irradiation surface of the strap with large distortion or deflection on a flat surface, so there is a problem in printing accuracy. There was a point.

  Therefore, the present invention has been made to solve the above-described conventional problems, and when irradiating the laser beam to the strap surface, the strap positioning accuracy is secured when the strap is fixed, and the bending of the laser beam irradiation surface of the strap is removed. An object of the present invention is to provide a bundling device that improves the marking accuracy of information such as identification management symbols on a strap.

(1) The bundling device of the present invention is
A binding device having a marking unit for marking by irradiating a laser beam to a strap for binding an object to be bound,
A rail chute-like strap chute that feeds the strap so as to circulate around the object to be bound;
A laser beam exposure unit having an opening for irradiating a laser to the outer peripheral surface of the strap attached to a part of the strap chute and supplied inside;
A shoot gate unit that is provided on the inner side of the laser beam exposure unit and slides in one direction to open and close the opening of the laser beam exposure unit;
A laser beam irradiation unit that is provided on the outer side of the laser beam exposure unit and irradiates the outer peripheral surface of the strap with laser beam,
A strap supplied to the inside of the laser beam exposure unit,
A strap width direction pressing portion that presses and fixes to the side guide from the width direction side, and a strap surface correction pressing portion that presses and fixes from the inner peripheral surface side to the outer opening,
The shoot gate portion is
The chute gate (13b) is connected via the opening / closing cylinder (13a).
It is slidably attached to the inner side of the body frame (20a) ,
The slide-driven chute gate (13b) opens and closes the opening of the laser beam exposure unit, and the interval between the openings can be adjusted according to the type and size of the strap.

(2) In the binding device of the present invention, in (1), the strap surface correction pressing portion includes a strap pressing member provided with a pressing mechanism for pressing the inner peripheral surface of the strap, and the strap pressing member inward or Drive means for advancing and retracting outward.

(3) The bundling device according to the present invention is the laser beam shielding unit for preventing leakage of the laser beam irradiated to the strap on the inner side of the strap surface correction pressing unit in (1) or (2). Is provided so as to be able to advance and retreat.

  The bundling device of the present invention performs marking by irradiating a laser beam by pressing and fixing the strap supplied to the laser beam exposure unit outward from the inner peripheral surface side. Since the strap positioning accuracy can be ensured when the strap is fixed and the deflection of the laser light irradiation surface of the strap can be removed, the marking accuracy of information such as identification management symbols on the strap can be improved.

The bundling device of the present embodiment has a marking portion for marking by irradiating a laser beam on the outer peripheral surface of a strap for bundling an object to be bound such as a steel plate coil, and a rail groove-shaped strap chute surrounds the object to be bound. The strap is supplied so that it circulates, and the laser beam exposure part is attached to a part of the strap chute and has an opening for irradiating the laser to the outer peripheral surface of the strap, and the chute gate part is exposed to laser light. The laser beam exposure unit is provided on the outer side of the strap, and slides in one direction to open and close the opening of the laser beam exposure unit. The laser beam irradiation unit is provided on the outer side of the laser beam exposure unit. The surface is irradiated with laser light.
In such a binding device, the strap supplied to the inside of the laser beam exposure unit is pressed and fixed to the side guide from the width direction side by the strap width direction pressing unit.
Further, the strap surface correction pressing portion has a function of pressing and fixing outward from the inner peripheral surface side of the strap.
In such a binding device, the strap surface correction pressing portion presses the inner peripheral surface of the strap by the strap pressing member provided with the pressing mechanism, and causes the strap pressing member to advance or retract inward or outward by the driving means. It is preferable that it is what is.
Moreover, it is preferable that this bundling device is provided with a laser light shielding part on the inner side of the strap surface correction pressing part so as to be able to advance and retreat, so that leakage of the laser light irradiated to the strap can be prevented.

  The bundling device of the present embodiment prints manufacturing information (coil information) such as the shipping destination and weight in advance on a strap for bundling wire coils and steel plate coils (hereinafter referred to as coils) in steel production facilities. The strap is supplied to the inside of a strap chute formed in a rail groove shape, and the strap is wound around the coil after marking on the outer peripheral surface thereof.

The strap chute has an annular shape so as to circulate around the coil, and a part of the annular shape is notched, and a laser exposure part is provided in the notched portion.

The laser beam exposure unit includes an opening for laser beam irradiation with the outer and inner sides opened in a substantially rectangular shape, and the laser beam irradiated from the laser beam irradiation unit is substantially rectangular. By irradiating through the shaped opening, coil information such as predetermined symbols and characters can be marked on the outer peripheral surface of the strap.

  The shoot gate unit is provided on the inner side of the laser beam exposure unit, and slides in one direction to open and close the opening of the laser beam exposure unit and irradiate the outer peripheral surface of the supplied strap. It is a member for controlling the irradiation state of light and the like, and is driven via a drive unit such as an air cylinder.

  The strap width direction pressing part is a member that presses and fixes the strap supplied to the inside of the laser light exposure part from the width direction side to the side guide side wall, whereby the strap supplied to the laser light exposure part is Positioning in the width direction is possible.

The strap surface correction pressing unit fixes the strap supplied to the inside of the laser beam exposure unit from the inner peripheral surface side, thereby fixing it to the opening located outside, and positioning in the width direction by the laser beam exposure unit. It is possible to correct the bending of the strap and keep it on a flat surface.
An air cylinder, a hydraulic cylinder, an electric motor, or the like can be used as a pressing drive source for the strap width direction pressing unit or the strap surface correction pressing unit, and the pressing state is controlled by the control unit that controls the entire binding device of the embodiment. It comes to control.

  The laser beam irradiation unit is provided on the outer side of the laser beam exposure unit (on the left side of the strap chute in FIG. 1), and the coil information is marked on the outer circumferential surface of the strap by irradiating the laser beam from the laser oscillator. Can be done.

In the bundling device of the present embodiment, the strap surface correction pressing portion includes a strap pressing member having a pressing mechanism that presses the inner peripheral surface side of the strap, and the strap pressing member is advanced and retracted in the direction of the opening for laser light irradiation. Driving means to be provided.
That is, by providing a driving means for moving the strap pressing member forward and backward in the direction of the opening for laser beam irradiation, the strap pressing member is supplied to the inside of the laser beam exposure unit and retracted after the marking operation is completed, so that the inner peripheral surface direction of the strap ( The lower part in FIG. 2 can be released to prevent interference at the time of winding around the coil peripheral surface (strap pullback (bundling)).

  The strap pressing member is a member equipped with a pressing mechanism such as a pneumatic cylinder. The strap pressing member presses the strap outward from its inner peripheral surface, corrects the laser light irradiation surface irradiated with laser light, and holds it on a flat surface. And function so that laser beam irradiation can be performed precisely.

  The drive means includes a drive mechanism such as an air cylinder or a motor for advancing and retracting the strap pressing member that presses the strap supplied to the inside of the laser beam exposure unit in the direction of the opening of the laser beam exposure unit. ing.

Moreover, the bundling device of this embodiment can be provided with a laser light shielding part for preventing leakage of the laser light applied to the strap so as to advance and retreat on the inner side of the strap surface correction pressing part. As a result, when the bundling apparatus is in operation, the leakage of the laser beam is shielded to ensure safety, and when bundling with the coil, the strap moving path for pulling back the strap can be secured to improve workability. The laser light shielding part includes, for example, a shield member for shielding laser light leaking from the laser light exposure part, and a shielding cylinder for slidingly driving the shield member relative to the strap surface correction pressing part. It is comprised.
In this way, the laser light shielding unit can be operated at a predetermined timing via the control unit that controls the bundling device of the embodiment.

FIG. 1 is a side view showing the configuration of the bundling device of this embodiment, FIG. 2 is a front view of the bundling device, and FIG. 3 is a partially enlarged view of FIG.
In the bundling device 20 of this embodiment, as shown in the drawing, the marking portion 10 is attached at a substantially central position in the height direction of the strap chute 21 of the bundling device 20, and the strap chute 21 is curved around the coil. It has a function of winding and binding a strap 23 made of steel strip or the like around the coil 22 that is arranged and traveled and conveyed therein.

Moreover, the marking part 10 is arrange | positioned at the main body flame | frame 20a of the binding apparatus 20, as shown in the figure, and the strap chute 21 formed in the rail groove shape to which the strap 23 travels is supplied, and the strap chute 21 has its front and back surfaces. In order to form a laser beam exposure unit 12 having a substantially rectangular opening on the side and an opening 12b on which the surface side of the strap 23 inserted in the laser beam exposure unit 12 is slid to open and close and irradiated with the laser beam. Positioning the strap surface correction pressing portion 14 for pressing the strap 23 supplied to the laser beam exposure portion 12 from the inner peripheral surface side and correcting the bending to a flat surface. The plate 16a is pressed and fixed to the side guide 12a fixed to the lower part of the laser beam exposure unit 12 from the width direction side. A strap width direction pressing unit 16 for positioning the laser beam in the width direction, a laser beam irradiation unit 17 for irradiating the laser beam exposure unit 12 with a laser beam corresponding to manufacturing information of the coil 22, and the laser to be irradiated It has a laser beam shielding part 18 and the like for preventing light from leaking downward.
The left and right main body frames 20a of the laser light irradiation unit 17 facing the laser light exposure unit 12 need monitoring cameras 19 and 19a for monitoring the marking state of the strap 23 irradiated by the laser light, respectively. It is provided according to.

The strap surface correction pressing portion 14 includes moving cylinders 14c and 14d, and is extended and retracted in the lateral direction to move the strap pressing member 14b forward and backward along the width direction of the strap, and includes a pressing cylinder 14a. The strap is positioned by pressing the inner peripheral surface of the strap 23 disposed in the laser beam exposure unit 12 outward by extending and contracting in the vertical direction.
A side guide 12a for fixing the strap 23 in contact with one side in the width direction is fixedly disposed below the laser light exposure unit 12.

  The strap width direction pressing portion 16 is provided at the right end of the moving cylinder 14c of the strap surface correction pressing portion 14 and hangs down below the positioning plate 16a that slides to the left and right and the opening 12b of the laser light exposure portion 12. The strap 23 can be positioned in the width direction by sandwiching both ends of the strap 23 in the width direction between the positioning plate 16a and the side guide 12a.

  The chute gate 13b of the chute gate portion 13 is slidably attached to the inner side (downward in the drawing) of the main body frame 20a via the opening / closing cylinder 13a. The interval between the openings 12b of the laser beam exposure unit 12 can be adjusted.

  The laser light shielding portion 18 is arranged so that the shield member 18b at the tip thereof can be advanced and retracted in the direction of the strap pressing member 14b arranged below the laser light exposure portion 12 by a shielding cylinder 18a attached to the main body frame 20a. Thus, it is possible to shield from the laser light when necessary, and to retreat when it is unnecessary and to prevent interference when the strap is pulled back.

  Each of the driving units (the pressing cylinder 14a, the moving cylinders 14c and 14d, the opening and closing cylinder 13a, and the shielding cylinder 18a) for driving the strap pressing member 14b, the chute gate 13b, and the shield member 18b is the bundling device 20. It is controlled by a control unit (not shown) provided in. According to each operation process in the laser marking of the strap 23 through a control program or the like provided in such a control unit, each drive unit (pressing cylinder 14a, moving cylinders 14c and 14d, opening and closing cylinder 13a, The shielding cylinder 18a) is adapted to cooperate.

Here, FIG. 4 is a partial front view for explaining the marking process of the binding device in the present embodiment, and FIG. 5 is a plan view thereof.
Hereinafter, the marking operation (1: standby state, 2: strap supply, 3: strap width direction positioning, 4: laser marking) in the marking unit 10 disposed in the binding device 20 will be described with reference to the drawings.

1: Standby state (see FIGS. 4A and 5A)
4A and 5A, the strap pressing member 14b, the chute gate 13b, and the shield member 18b are held in their respective standby states when the marking unit 10 is on standby and when the strap is retracted. Is done. That is, by driving the moving cylinders 14 c and 14 d in the strap surface correction pressing unit 14, the strap pressing member 14 b is disposed at a position directly below the laser beam exposure unit 12.
In addition, the chute gate 13b of the chute gate 13 is set with an operation amount for forming the opening 12b according to the type and size of the strap 23 through the opening / closing cylinder 13a. ing.

2: Strap supply (FIGS. 4B and 5B)
(1) At the time of strap supply, by driving the moving cylinder 14d, a gap in the width direction serving as a strap supply guide is formed between the positioning plate 16a and the side guide 12a.
(2) Next, in order to prevent laser light leakage at the time of laser marking, the shielding cylinder 18a is extended and extended (leftward), and the lower portion of the laser light exposure unit 12 is shielded by the shield member 18b. To do.
(3) The strap 23 is supplied to the laser beam exposure unit 12 of the bundling device 20 via the strap chute 21.

3: Positioning in the strap width direction (FIGS. 4C and 5C)
The strap 23 supplied to the laser beam exposure unit 12 is positioned in the strap width direction as follows.
(1) The moving cylinder 14c is advanced and extended (right direction) to be set at a predetermined position, thereby restricting the strap width direction of the supplied strap 23.
(2) The pressing cylinder 14a for pressing the inner peripheral surface of the strap and regulating it upward is driven forward (upward). In this way, the strap thickness direction is regulated, and the laser beam irradiation surface of the strap 23 arranged in the laser beam exposure unit 12 is corrected to a flat surface, and the laser irradiation preparation is completed.

4: Laser marking (FIGS. 4D and 5D)
(1) As in the above 3 :, the opening / closing cylinder 13a is driven backward (in the direction of the arrow) while maintaining the positioning state, thereby forming the opening 12b having a predetermined width in the laser beam exposure unit 12.
(2) Data relating to the manufacturing information of the coil 22 is laser-marked on the strap 23 arranged in the laser light exposure unit 12 via the laser light irradiation unit 17.

That is, the bundling device 20 according to the present embodiment can have the following features (a) to (e).
(A) At the time of laser marking, the chute gate 13b provided in the laser beam exposure unit 12 slides to one side in the width direction of the outer peripheral surface to form the opening 12b.
(B) The positioning plate 16a slides in the strap width direction and positioning in the strap width direction is performed.
(C) The strap pressing member 14b is attached to the moving cylinder 14c of the positioning plate 16a in the width direction.
(D) The strap is positioned by the positioning plate 16 in the strap width direction and the strap pressing member 14b.
(E) The strap feed amount of the strap 23 sent to the laser beam exposure unit 12 can be controlled by detecting the position by a sensor (LS or PH) attached to the strap chute 21 or the like.

  As described above, according to the bundling device of the present invention, the strap supplied to the laser beam exposure unit of the strap chute is positioned in the width direction by the positioning plate 16a and the side guide 12a and irradiated with the laser beam. The strap surface can be marked with the strap pressing member adjusted to a flat surface. That is, in the bundling device, since the strap surface correction pressing portion and the strap width direction pressing portion are adjusted to a flat surface and positioning in the width direction is determined, marking with a laser beam is performed on the strap. Precise and clear laser marking is possible on the surface.

  The bundling device of the present invention is a bundling device that holds the outer peripheral surface of a strap for bundling an object to be bound, such as a coil, on a flat surface and can clearly and reliably mark an identification management symbol related to the bound object. It can be widely used in industry.

It is a side view showing composition of a bundling device to which a bundling device of an embodiment is applied. It is a front view of the bundling device of the embodiment. FIG. 3 is a partially enlarged view of FIG. 2. It is a front view explaining the marking process of the binding apparatus of an Example. It is a top view explaining the marking process of the binding apparatus of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Marking part 12 Laser beam exposure part 12a Side guide 12b Opening part 13 Shoot gate part 13a Opening and closing cylinder 13b Shoot gate 14 Strap surface correction pressing part 14a Pressing cylinder 14b Strap pressing member 14c, 14d Moving cylinder 16 Strap width direction pressing Part 16a Positioning plate 17 Laser light irradiation part 18 Laser light shielding part 18a Shielding cylinder 18b Shield member 19, 19a Monitoring camera 20 Bundling device 20a Body frame 21 Strap chute 22 Coil 23 Strap

Claims (3)

A binding device having a marking unit for marking by irradiating a laser beam to a strap for binding an object to be bound,
A rail chute-like strap chute that feeds the strap so as to circulate around the object to be bound;
A laser beam exposure unit having an opening for irradiating a laser to the outer peripheral surface of the strap attached to a part of the strap chute and supplied inside;
A shoot gate unit that is provided on the inner side of the laser beam exposure unit and slides in one direction to open and close the opening of the laser beam exposure unit;
A laser beam irradiation unit that is provided on the outer side of the laser beam exposure unit and irradiates the outer peripheral surface of the strap with laser beam,
A strap supplied to the inside of the laser beam exposure unit,
A strap width direction pressing portion that presses and fixes to the side guide from the width direction side, and a strap surface correction pressing portion that presses and fixes from the inner peripheral surface side to the outer opening,
The shoot gate portion is
The chute gate (13b) is connected via the opening / closing cylinder (13a).
It is slidably attached to the inner side of the body frame (20a) ,
The bundling apparatus is characterized in that the opening of the laser beam exposure unit can be opened and closed by the shoot gate (13b) driven to slide, and the interval between the openings can be adjusted according to the type and size of the strap. The strap surface correction pressing portion includes a strap pressing member provided with a pressing mechanism for pressing the inner peripheral surface of the strap,
Drive means for advancing and retracting the strap pressing member inward or outward;
The bundling device according to claim 1, further comprising: The laser beam shielding part for preventing the leakage of the laser beam irradiated to a strap is provided in the inner side of the said strap surface correction | amendment press part so that advancing and retreating is possible. Bundling device.

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