JP2007330974A - Marking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a marking devicecapable of easily marking even a tool having a crooked shape by means of laser transfer. <P>SOLUTION: This device is provided with: a working table 20 which comprises a first stage 21 on which a part having a code marking place of a tool 12 having the crooked shape is placed and a second stage 22 which is formed lower than the first stage by a prescribed height in order to horizontally place a code marking place on the first stage; a laser device 3 which is installed in the lower part and emits the laser from from the lower part; a holding plate 24 which has a through-hole having a prescribed size through which the laser beam of the laser device and is provided at the end part on the side of the second stage of the first stage and by which laser transfer film 6 is held at the prescribed intervals to the code marking place of the tool and a guide wall 25 which is formed on both sides of the holding plate and specifies the positions of both sides of the laser transfer film which is held on the holding plate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a marking device that irradiates a laser transfer film disposed in the vicinity of an instrument as an object to be processed with a laser beam and transfers a predetermined code to the instrument.

  As a laser transfer film used for this invention, there exists a thing disclosed by patent document 1, for example. This laser transfer film includes a base material, a light-to-heat conversion layer and a transfer layer sequentially formed thereon.

  Japanese Patent Laid-Open No. 2004-26883 discloses an irradiation means including a light source for emitting laser light, a reflection mirror, and a lens system, and a laser light transmission region and a mask region, which are arranged on the optical axis of the laser light with a slight inclination, respectively. A laser marking device is disclosed that includes a plurality of masks and irradiates laser light through the plurality of masks to transfer characters drawn on each mask onto the package surface of the semiconductor device.

Patent Document 3 discloses a laser marking apparatus that irradiates a workpiece with laser light output from a laser oscillator and prints the workpiece with a desired pattern.
JP 2005-148502 A JP-A-6-349958 JP-A-11-197862

  As disclosed in Patent Documents 2 and 3, in a normal laser marking apparatus, since the workpiece is a flat plate, there is no need to adjust the laser marking point, but the workpiece is bent. In this case, it is necessary to adjust the focus of the laser beam, and when the marking point is inclined, there is a problem that good marking cannot be performed.

  In recent years, a two-dimensional code for calling individual information and history of each instrument as information on surgical instruments such as forceps, a scalpel, and scissors has been marked using a laser marking device. In this case, in particular, the forceps have a bent shape, and the laser marking device as disclosed in Patent Document 2 or 3 described above has a drawback that marking is difficult.

  Therefore, an object of the present invention is to provide a marking device that can easily mark an instrument having a bent shape by laser transfer.

  Therefore, the present invention relates to a marking device that irradiates a laser transfer film disposed in the vicinity of an instrument as an object to be processed with laser light and transfers a predetermined code to the instrument. A first stage on which a portion having a code marking location is placed, and a first height formed at a predetermined height from the first stage in order to horizontally place the code marking location on the first stage. A work table comprising two stages, a laser device installed below the work table and irradiating a laser from below, and a through-hole of a predetermined size through which the laser beam of the laser device penetrates, the first The second stage side end of the stage is provided to hold the laser transfer film at a predetermined interval with respect to the code marking portion of the instrument. And rate, are formed on both sides of the holding plate, it is to include a guide wall defining the positions on both sides of the laser transfer film held by the holding plate.

  Furthermore, it is desirable that the marking device includes marking position display means for indicating the code marking position.

  The holding plate may be movable up and down along the guide wall.

  Therefore, according to the present invention, since the laser beam is irradiated from below and a step is formed on the work table, the marking portion can be reliably disposed at the position where the laser beam is irradiated. Marking can be performed efficiently on a shaped tool.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, a marking device 1 according to an embodiment of the present invention includes a casing 2, and a laser device 3 for irradiating laser light 10 from below in the casing 2 and a laser transfer device. A storage drum 4 for storing the film 6 and a take-up drum 5 for the laser transfer film 6 are disposed at least.

  Further, on the upper surface of the casing 2, a first stage 21 on which a portion having a code marking portion of the instrument 12 having a bent shape is placed, and the code marking portion is horizontally placed on the first stage 21. For this purpose, a work table 20 comprising a second stage 22 formed at a predetermined height lower than the first stage 21 is provided.

  In addition, the laser transfer film 6 is held at the end of the first stage 21 on the second stage side with respect to the code marking portion of the instrument 12 and is used for irradiating the laser beam 10. A part 11 is provided.

  As shown in FIG. 2, the marking portion 11 is attached to an opening portion 13 formed at an end portion (second stage side) of the first stage 21 of the work table 20, and the laser light 10 passes therethrough. The through-hole 23 having a predetermined size is constituted at least by a holding plate 24 and guide walls 25 provided on both sides of the holding plate 24 to hold the laser transfer film 6 from both sides.

  Further, the holding plate 24 is movable up and down in order to adjust a space 26 formed between the laser transfer film 6 and the instrument 12.

Furthermore, since the laser beam 10 is irradiated from below, it is desirable to provide marking position display means for indicating the marking position in order to confirm the marking position of the instrument 12. The marking position display means may be a straight line carved on the work table 20, but in order to detect the position more accurately, a beam light emitting device 30 that emits a position display beam indicating the opposite side of the marking position is used. It is desirable to provide it.

  The laser transfer film 6 is composed of at least a tape-like base material made of PET, for example, and a metal pigment bonded to the base material through an adhesive layer, for example, and is irradiated with laser light. Only the portion irradiated with the laser light is emitted at a high temperature and transferred to the instrument 12.

  With the above configuration, the laser transfer film 6 accommodated in the accommodation drum 4 is arranged on the holding plate 24 via the tension rollers 9 and 7, and is further taken up onto the take-up drum 5 via the tension roller 8. It is done. Then, the instrument 12 is placed on the first stage 21, the code marking position is arranged at the position on the through hole 23 (position indicated by the positioning beam light), and a predetermined two-dimensional code is pressed by pressing a switch. The laser beam 10 moves in the through hole 23 so as to record the laser beam, melts the metal pigment of the laser transfer film 6 and emits it into the space, and transfers the two-dimensional code to a predetermined position of the instrument 12. Is. The transferred content is a two-dimensional code in this embodiment, but it may be composed of letters, numbers, and the like.

  Further, the holding plate 24 is moved in order to adjust the distance between the laser transfer film 6 and the instrument 12 to be corrected depending on the type of the laser transfer film 6.

It is a schematic block diagram of the marking apparatus which concerns on the Example of this invention. It is explanatory drawing which showed the marking part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Marking apparatus 2 Casing 3 Laser apparatus 4 Storage drum 5 Take-up drum 6 Film for laser transfer 7, 8, 9 Tension roller 10 Laser beam 11 Marking part 12 Instrument 20 Worktable 21 1st stage 22 2nd stage 23 Through Hole 24 Holding plate 25 Guide wall 26 Space 30 Beam light emitting device

Claims (3)

In a marking device that irradiates a laser transfer film disposed close to an instrument as an object to be processed and irradiates a predetermined code on the instrument,
A first stage on which a portion having a code marking portion of an instrument having a bent shape is placed, and in order to place the code marking portion horizontally on the first stage, a predetermined amount is placed from the first stage. A workbench comprising a second stage formed low in height;
A laser device installed below the workbench and irradiating a laser from below;
The laser apparatus has a through-hole of a predetermined size through which laser light passes, and is provided at the second stage side end of the first stage, and the laser transfer film is attached to the code marking portion of the instrument. A holding plate for holding at a predetermined interval,
A marking device comprising: guide walls formed on both sides of the holding plate and defining positions on both sides of the laser transfer film held on the holding plate.   2. The marking device according to claim 1, further comprising marking position display means for indicating the code marking position.   The marking device according to claim 1, wherein the holding plate is movable up and down along the guide wall.

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