JP4829748B2 - Deburring apparatus, deburring method, and resin product manufacturing method - Google Patents

Description

  The present invention relates to a deburring apparatus and deburring method for a resin molded product, and a method for manufacturing a resin product.

In resin molding using two or more molds, burrs may occur on the surface of the resin molded product due to the gaps between the joints of the molds. Conventionally, a deburring device using a laser beam is known as a device for removing burrs generated during resin molding (for example, Patent Documents 1 to 4). In this deburring device, the burrs are heated and vaporized by irradiating the burrs with laser light.
JP-A-2005-231172 JP 2004-126377 A JP-A-63-124537 JP-A-5-315378

  However, the laser light is incident on the resin molded product main body depending on the irradiation condition of the laser light, and the surface of the resin molded product main body is damaged.

  Accordingly, an object of the present invention is to provide a deburring apparatus and a deburring method that can easily remove burrs without damaging the surface of a resin molded product, and a method for manufacturing a resin product.

  The inventors of the present application have conducted various experiments and found that burrs can be easily removed without damaging the surface of the resin molded product by using the skirt portion of the Gaussian distribution of laser light.

  Therefore, the deburring device of the present invention is a burr generated by a gap between the joints of the molds during resin molding, and is a vertical direction substantially perpendicular to the surface from the surface of the resin molded product and a parallel direction parallel to the surface. In the deburring device for removing the burrs extending to (1), (1) the region including the burrs formed in the vertical direction and the parallel direction has a beam diameter that is twice or more the vertical length of the burrs. A laser beam generating means for generating a laser beam having a Gaussian beam profile; and (2) a resin so that a skirt portion in the beam profile of the laser beam is incident at least from a direction intersecting a burr and a perpendicular direction. Positioning means for determining the irradiation position of the laser beam on the molded product, and (3) resin molded product and laser beam generation so that the laser beam is scanned in the parallel direction. And a moving means for moving one of stages.

  According to this deburring device, the laser beam generating means generates a laser beam having a beam diameter larger than the burr length, and the skirt portion in the Gaussian distribution of the laser beam, that is, the portion where the laser beam intensity is weak is positioned. It is incident on the burr by means. Therefore, according to this deburring apparatus, even if a skirt portion in the Gaussian distribution of the laser beam is incident on the surface of the resin molded product without performing high-precision positioning, the laser beam is scanned on the resin molded product by the moving means. By adjusting the speed, burrs can be easily removed without damaging the surface of the resin molded product.

  The positioning means described above preferably determines the irradiation position of the laser beam on the resin molded product so that the incident angle of the laser beam on the surface of the resin molded product is smaller than the incident angle of the laser beam on the burr.

  Generally, as the incident angle with respect to the workpiece is vertical, a larger energy is transmitted from the laser beam to the workpiece. According to this deburring device, the incident angle of the laser beam with respect to the surface of the resin molded product is smaller than the incident angle of the laser beam with respect to the burr by the positioning means, so that damage to the surface of the resin molded product can be further prevented.

  In the deburring device described above, it is preferable that the incident angle of the laser beam with respect to the burr is vertical. According to this, a burr | flash can be removed efficiently.

  The deburring device described above includes (4) a conveying means for carrying in a resin molded product before processing from the outside and carrying out the resin molded product after processing to the outside, (5) laser light generating means, and positioning means. It is preferable that the apparatus further includes a moving unit and a control unit that comprehensively controls the conveying unit. According to this configuration, the deburring device can be automated.

  The deburring device described above preferably further includes (6) a light guide for guiding laser light to the burr. According to this configuration, since the light guide performance can be improved by the light guide, it is possible to prevent the laser light from entering the surface of the resin molded product. Therefore, damage to the surface of the resin molded product can be further prevented.

  The light guide described above is in contact with the surface of the resin molded product, and preferably has a thermal conductivity higher than that of the resin molded product. According to this configuration, since the light guide functions as a heat sink for the surface of the resin molded product, it is possible to prevent damage to the surface of the resin molded product due to heat.

  The light guide described above preferably has a reflective film on the surface along the surface of the resin molded product. According to this configuration, since the light guide performance can be improved by the reflective film, it is possible to suppress the laser light from entering the surface of the resin molded product. Therefore, according to this structure, damage to the surface of the resin molded product can be further prevented.

  It is preferable that an inert gas flows in a region including the burrs of the resin molded product. According to this, since the surface of the resin molded product can be cooled by the inert gas, it is possible to prevent the surface of the resin molded product from being damaged due to heat. In addition, since the resin (burr) vaporized by the inert gas can be removed, contamination of the laser optical system, the light guide, and the like by the vaporized resin can be prevented.

  The deburring method of the present invention is a burr generated by a gap between the joints of molds during resin molding, and extends from the surface of the resin molded product in a vertical direction substantially perpendicular to the surface and a parallel direction parallel to the surface. In the deburring method for removing the burrs, (1) the region including the burrs formed in the vertical direction and the parallel direction has a beam diameter that is twice or more the vertical length of the burrs and has a Gaussian distribution. A laser beam generation step for generating a laser beam having a beam profile, and (2) a skirt portion in the beam profile of the laser beam is incident at least from a direction intersecting the vertical and parallel directions with the burr, Determine the irradiation position of the laser beam on the resin molded product so that the incident angle of the laser beam on the surface is smaller than the incident angle of the laser beam on the burr. It has a-decided Me step, and (3) to scan the laser beam in the direction parallel moving step of moving one of the irradiation positions of the resin molded article and the laser beam.

  According to this deburring method, a laser beam having a beam diameter larger than the burr length is generated in the laser beam generation process, and the skirt portion in the Gaussian distribution of the laser beam, that is, the portion where the laser beam intensity is weak is positioned. It is incident on the burr in the process. Therefore, according to this deburring method, even when a further skirt portion in the Gaussian distribution of the laser beam is incident on the surface of the resin molded product without performing high-precision positioning, the laser beam is scanned with respect to the resin molded product in the moving process. By adjusting the speed, burrs can be easily removed without damaging the surface of the resin molded product. Further, according to this deburring method, the incident angle of the laser beam with respect to the surface of the resin molded product is smaller than the incident angle of the laser beam with respect to the burr in the positioning step, so that it is possible to further prevent the surface of the resin molded product from being damaged. it can.

  The method for producing a resin product according to the present invention is a burr produced by a gap in a joint portion between molds at the time of resin molding in a resin product production method for producing resin products by resin molding using a mold. A deburring step for removing the burrs extending from the surface of the article in a vertical direction substantially perpendicular to the surface and in a parallel direction parallel to the surface. This deburring process includes a laser beam generation process, a positioning process, and a movement process in the above-described deburring method.

  According to this resin product manufacturing method, as described above, burrs can be easily removed without damaging the surface of the resin molded product, that is, the surface of the resin product.

  ADVANTAGE OF THE INVENTION According to this invention, the deburring apparatus and the deburring method which can remove a burr easily, without damaging the surface of a resin molded product, and the manufacturing method of a resin product are obtained.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.
[First Embodiment]

  FIG. 1 is a diagram showing a configuration of a deburring device according to a first embodiment of the present invention, and FIG. 2 is a diagram showing an electrical connection of the deburring device shown in FIG. A deburring device 1 shown in FIG. 1 and FIG. 2 is a burr generated by a gap between joints of molds during resin molding, and is a main body (hereinafter referred to as a base) of a resin molded product (hereinafter referred to as a workpiece). .) Is a device for removing resinous burrs formed on the surface (hereinafter referred to as a base surface).

  The deburring device 1 includes a shielding box 10 for shading, two work pallets 12 and 14, a loading robot 16, a loading robot 18, a fixing jig 20, a moving stage 22, an irradiation head 24, an optical head, A fiber 26, a laser light source 28, a laser moving robot 30, and a PC (Personal Computer) 32 are provided.

  In the present embodiment, the carry-in robot 16 and the carry-out robot 18 function as the transport means described in the claims, and the irradiation head 24, the optical fiber 26, and the laser light source 28 are the lasers described in the claims. It functions as a light generation means. The laser moving robot 30 functions as positioning means and moving means described in the claims, and the PC 32 functions as control means described in the claims.

  The light shielding shield box 10 prevents laser light from leaking outside during laser processing. Light shielding doors 10a and 10b for transporting workpieces are provided on opposite side walls of the light shielding shield box 10, respectively. A work pallet 12 and a loading robot 16 are provided on the light shielding door 10a side with respect to the light shielding shield box 10, and a work pallet 14 is carried out on the light shielding door 10b side with respect to the light shielding shield box 10. A robot 18 is provided.

  A workpiece W before processing is mounted on the workpiece pallet 12. The carry-in robot 16 carries the work W on the work pallet 12 from the light shielding door 10 a into the light shielding shield box 10 and attaches it to the fixing jig 20.

  Similarly, the unloading robot 18 removes the processed workpiece from the fixing jig 20, unloads it from the light shielding door 10 b to the outside of the light shielding shield box 10, and places it on the work pallet 14.

  The fixing jig 20 is provided in the light shielding shield box 10 and is slidable in the direction of the light shielding doors 10 a and 10 b by the moving stage 22. In addition, the fixing jig 20 can be rotated in the horizontal direction to facilitate attachment and removal of the workpiece. An irradiation head 24 is provided above the fixing jig 20.

  The irradiation head 24 is provided in the light shielding shield box 10 and connected to a laser light source 28 provided outside the light shielding shield box 10 via an optical fiber 26.

  FIG. 3 is a diagram showing the intensity distribution of the laser light in the vicinity of the processed part of the workpiece. FIG. 3 also shows a part of the workpiece W having the burr Wv. As described above, the burr Wv extends from the base surface Ws of the base portion Wb in the vertical direction X substantially perpendicular to the base surface Ws and the parallel direction Y parallel to the base surface Ws by the gap between the joints of the molds. Is formed.

  As shown in FIG. 3, the irradiation head 24 has an average length in the vertical direction X of the burrs Wv in the processed portion of the workpiece W, that is, in the region A including the burrs Wv formed in the vertical direction X and the parallel direction Y. A laser beam having a beam profile Lp having a Gaussian distribution and a beam diameter twice or more is output. The irradiation head 24 is supported by the laser moving robot 30.

  The laser moving robot 30 determines the irradiation position of the laser beam on the workpiece W by adjusting the position of the irradiation head 24. Specifically, as shown in FIG. 3, in the laser moving robot 30, the skirt portion Lps in the beam profile Lp of the laser beam enters at least the burr Wv from the direction Z intersecting the vertical direction X and the parallel direction Y. As described above, the position of the irradiation head 24 is adjusted. For example, when the beam diameter is defined by the half width, the position of the irradiation head 24 is set so that the outer diameter portion of this beam, that is, the outer edge portion (corresponding to the bottom portion Lps in the beam profile Lp of the laser light) is incident on at least the burr Wv. It is preferable to adjust. Further, the laser moving robot 30 adjusts the position of the irradiation head 24 so that the incident angle θb of the laser beam with respect to the base portion Wb of the workpiece W is smaller than the incident angle θv of the laser beam with respect to the burr. In the present embodiment, the laser moving robot 30 adjusts the position of the irradiation head 24 so that the incident angle θv of the laser beam with respect to the burr Wv is 90 degrees.

  Further, the laser moving robot 30 moves the irradiation head 24 in the horizontal direction orthogonal to the direction of the light shielding doors 10a and 10b, thereby moving the laser light in the parallel direction Y, that is, the base surface Ws of the base portion Wb of the workpiece W. Scan along. The laser oscillation at the time of scanning may be either pulse oscillation or continuous oscillation.

  The PC 32 comprehensively controls the operations of these units. In particular, the PC 32 controls the operation sequence of each part.

  Next, operation | movement of the deburring apparatus 1 is demonstrated, and the deburring method which concerns on embodiment of this invention is also demonstrated. This deburring method includes a work carry-in process, a laser beam generation process, a positioning process, a movement process, and a work carry-in process.

When the deburring device 1 is activated, the loading robot 16, the unloading robot 18, the fixing jig 20, the moving stage 22, the irradiation head 24, and the laser moving robot 30 are returned to the initial position and the initial state, and the laser light source 28 is on standby. It becomes a state. Further, the PC 32 transmits a command to each unit and operates each unit as shown in FIG. FIG. 4 is a flowchart showing a control process of the PC 32 shown in FIGS.
(Work loading process)

First, the loading robot 16 grips the workpiece W before processing on the workpiece pallet 12 provided at a predetermined position (step S01). Thereafter, the loading robot 16 moves to the light shielding door 10a side, that is, to the workpiece mounting position. On the other hand, the fixing jig 20 is moved to the work mounting position by the moving stage 22 and rotated 180 degrees (step S02). Thereafter, the light shielding door 10a is opened, and the loading robot 16 attaches the workpiece W to the fixing jig 20 (step S03). Thereafter, the light blocking door 10a is closed, and the fixing jig 20 is moved to the center of the moving stage 22, that is, the processing position by the moving stage 22, and rotated 180 degrees (step S04).
(Positioning process)

Next, the laser moving robot 30 has at least the skirt portion Lps in the beam profile Lp of the laser beam incident on the burr Wv, and the incident angle θb of the laser beam with respect to the base portion Wb of the workpiece W is the incident angle of the laser beam with respect to the burr Wv. The irradiation head 24 is moved so as to be smaller than θv (step S05).
(Laser light generation process)

Next, when the laser light source 28 starts outputting the laser light, in the region A including the burr Wv, a laser beam having a beam diameter that is twice or more the length of the burr Wv is output from the irradiation head 24 (step S05). .
(Transfer process)

Next, the laser moving robot 30 scans the laser beam by moving the irradiation head 24. Thereby, deburring of the workpiece W is performed (step S05).
(Work unloading process)

  When the scanning of the laser beam is completed, the laser light source 28 stops the output of the laser beam and the laser moving robot 30 returns the irradiation head 24 to the initial position (step S06). Thereafter, the fixing jig 20 is moved by the moving stage 22 toward the light shielding door 10b, that is, to the workpiece removal position. On the other hand, the unloading robot 18 moves to the workpiece removal position (step S07). Thereafter, the light shielding door 10b is opened, and the unloading robot 18 removes the processed workpiece from the fixing jig 20 (step S08). Thereafter, the unloading robot 18 places the processed workpiece on the work pallet 14. On the other hand, the light shielding door 10b is closed, the fixing jig 20 is returned to the initial position by the moving stage 22, and the unloading robot 18 is returned to the initial position and the initial state (step S09).

  Next, it is determined by the PC 32 whether or not the machining of all the workpieces W before machining has been completed (step S10). If machining of all the workpieces W before machining has not been completed, the process returns to step S01, and the above machining is repeated for the next workpiece W before machining. On the other hand, when the machining of all the workpieces W before machining is finished, the machining process is finished.

Next, an example of deburring processing by the deburring apparatus 1 will be shown. Each condition in the present embodiment is as follows.
Laser beam diameter: 1.6mmΦ
Average intensity of laser light: 18W
Laser beam scanning speed: 100 mm / sec
Work base and burr material: PPS (polyphenylene sulfide)
Bali length: about 200μm

  FIG. 5A is a diagram showing the vicinity of the machining portion of the workpiece before machining, and FIG. 5B is a diagram showing the vicinity of the machining portion of the workpiece after machining. As shown in FIG. 5, according to the deburring device 1 of this example, the deburring Wv could be easily removed without damaging the base portion Wb. As a result of further experiments, according to the deburring apparatus 1 of the present example, it was possible to remove resinous burrs having a length of up to about 500 μm.

  As described above, according to the deburring device 1 of the first embodiment, the irradiation head 24, the optical fiber 26, and the laser light source 28 generate laser light having a beam diameter larger than the length of the burr Wv. The skirt portion Lps in the Gaussian distribution of light, that is, the portion where the intensity of the laser beam is weak, is incident on the burr Wv by the laser moving robot 30. Therefore, according to the deburring device 1 of the first embodiment, even if a further skirt portion in the Gaussian distribution of the laser beam is incident on the base portion Wb without performing high-precision positioning, the laser beam is scanned with respect to the workpiece W. By adjusting the speed, the burr Wv can be easily removed without damaging the base portion Wb.

  In general, as the incident angle with respect to the workpiece W is vertical, a larger energy is transmitted from the laser beam to the workpiece W. According to this deburring device, the laser moving robot 30 causes the incident angle θb of the laser beam to the base surface Ws of the base portion Wb of the workpiece W to be smaller than the incident angle θv of the laser beam to the deburring Wv. Damage can be further prevented.

  In general, since the heat capacity of the base portion Wb of the workpiece W is larger than the heat capacity of the burr Wv, damage to the base portion Wb can be further prevented.

  Moreover, according to the deburring method of the present invention, since the laser beam generation process, the positioning process, and the movement process are included, the burrs can be easily removed without damaging the surface of the resin molded product. .

Further, according to the resin product manufacturing method of the present invention, as the deburring process for removing the burr generated by the gap between the joints of the molds at the time of resin molding, the above-described laser light generation process, positioning process, Since it has a moving step, burrs can be easily removed without damaging the surface of the resin product.
[Second Embodiment]

  A deburring device according to a second embodiment of the present invention will be described. The deburring device of the second embodiment is different from the first embodiment in a configuration in which the fixing jig 20 includes a light guide 40 in the deburring device 1 of the first embodiment.

  FIG. 6 is a view showing the light guide 40 according to the second embodiment. The light guide 40 shown in FIG. 6 is supported by the fixing jig 20. The light guide 40 has an inverted trapezoidal cross section, and extends in the parallel direction Y, that is, the laser beam scanning direction (front and back direction in FIG. 6). The light guide 40 guides laser light incident from the upper surface side in the inverted trapezoidal shape to the lower surface side. The lower surface of the light guide 40 is in contact with the burr Wv of the workpiece W and the base portion Wb near the burr Wv. As a material of the light guide 40, glass having a higher thermal conductivity than that of resin or air is used.

  The deburring device of the second embodiment can obtain the same advantages as those of the first embodiment.

  In addition, according to the deburring device of the second embodiment, the light guide 40 can improve the light guiding performance, so that the laser light can be prevented from entering the base portion Wb. Therefore, damage to the base portion Wb can be further prevented.

Further, according to the deburring device of the second embodiment, the light guide 40 has a higher thermal conductivity than the thermal conductivity of resin or air, and thus functions as a heat sink for the base portion Wb of the workpiece W. . Therefore, according to the deburring device of the second embodiment, it is possible to prevent the base portion Wb from being damaged due to heat.
[Third Embodiment]

  A deburring device according to a third embodiment of the present invention will be described. The deburring device of the third embodiment is different from the second embodiment in that the fixing jig 20 of the deburring device of the second embodiment includes a light guide 40A instead of the light guide 40.

  FIG. 7 is a view showing a light guide 40A according to the third embodiment. The light guide 40A shown in FIG. 7 includes a light guide 40 and a heat sink 41, and is supported by the fixing jig 20. The heat sink 41 has a shape obtained by inverting the light guide 40. The light guide 40 and the heat sink 41 are provided so as to sandwich the burr Wv, and are in contact with the burr Wv and the base portion Wb near the burr Wv.

  The deburring device of the third embodiment can obtain the same advantages as those of the second embodiment.

Further, according to the deburring device of the third embodiment, the base portion Wb in the vicinity of the burr Wv can be cooled from the vertical direction by the light guide 40A, so that damage to the base portion Wb due to heat is further prevented. be able to.
[Fourth Embodiment]

  A deburring device according to a fourth embodiment of the present invention will be described. The deburring device of the fourth embodiment is different from the first embodiment in the configuration in which the fixing jig 20 includes the light guide 40B in the deburring device 1 of the first embodiment.

  FIG. 8 is a view showing a light guide 40B according to the fourth embodiment. The light guide 40 </ b> B illustrated in FIG. 8 is supported by the fixing jig 20. The light guide 40B is composed of two light guide members 42, and sandwiches and fixes the workpiece W. That is, the light guide member 42 is in contact with the base surface Ws of the base portion Wb. The work guide side surface of the light guide member 42 is provided with a cutout for accommodating a burr so as to form a U-shaped cross section. The light guide member 42 has a parallel direction Y, that is, a laser beam. It extends in the scanning direction (front and back direction in FIG. 8). The light guide member 42 guides laser light incident from the upper surface to the cutout portion. The light guide member 42 is made of the same material as the light guide 40.

  The deburring device of the fourth embodiment can obtain the same advantages as those of the first embodiment.

Further, according to the deburring device of the fourth embodiment, since the workpiece W is sandwiched and fixed by the light guide 40B, the accuracy of the incident position of the laser beam is further improved. Therefore, according to the deburring device of the fourth embodiment, it is possible to further prevent the base portion Wb from being damaged.
[Fifth Embodiment]

  A deburring device according to a fifth embodiment of the present invention will be described. The deburring device of the fifth embodiment is different from the fourth embodiment in that the fixing jig 20 of the deburring device of the fourth embodiment includes a light guide 40C instead of the light guide 40B.

  FIG. 9 is a view showing a light guide 40C according to the fifth embodiment. The light guide 40 </ b> C illustrated in FIG. 9 is supported by the fixing jig 20. The light guide 40B is composed of two light guide members 43, and sandwiches and fixes the workpiece W. The light guide member 43 is different from the light guide member 42 in that the notch shape of the light guide member 42 is triangular. A reflective film 45 is formed on the surface of the light guide member 43 on the workpiece W side. A metal film is used as the material of the reflective film 45, and the surface of the reflective film 45 is subjected to a hard coat process.

  In the present embodiment, an inert gas is allowed to flow through the notch portion of the light guide member 43. Nitrogen gas or the like is used as the inert gas.

  The deburring device of the fifth embodiment can obtain the same advantages as those of the fourth embodiment.

  Further, according to the deburring device of the fifth embodiment, since the notch portion of the light guide member 43 has a triangular cross section, the laser beam is irradiated to the root of the burr Wv by irradiating the laser beam from an oblique direction. Can be irradiated. Therefore, according to the deburring device of the fifth embodiment, burrs can be efficiently removed.

  Further, according to the deburring device of the fifth embodiment, the light guide performance can be improved by the reflective film 45, so that the laser light can be prevented from entering the base portion Wb. Therefore, according to the deburring device of the fifth embodiment, it is possible to further prevent the base portion Wb from being damaged.

  Further, according to the deburring device of the fifth embodiment, the reflective film 45 made of a metal film functions as a heat sink for the base portion of the workpiece, so that damage to the base portion due to heat can be prevented. .

  In addition, according to the deburring device of the fifth embodiment, the base portion of the workpiece can be cooled by the inert gas, so that damage to the base portion due to heat can be further prevented.

  Further, according to the deburring apparatus of the fifth embodiment, since the resin (burr) vaporized by the inert gas can be removed, contamination of the laser optical system, the light guide 40C, and the like by the vaporized resin is prevented. can do. As a result, maintenance work for the laser optical system and the light guide 40C can be reduced.

  The present invention is not limited to the above-described embodiment, and various modifications can be made.

  In this embodiment, in order to determine the irradiation position of the laser beam with respect to the workpiece W, the irradiation position of the laser beam is adjusted. However, the position of the workpiece may be adjusted. That is, in the present embodiment, the laser moving robot 30 functions as a positioning unit, but the fixing jig 20 and the moving stage 22 may function as a positioning unit.

  In the present embodiment, the laser beam is scanned in order to scan the laser beam along the base surface Ws of the base portion Wb of the workpiece W. However, the workpiece W may be scanned. That is, in this embodiment, the laser moving robot 30 functions as a moving unit, but the fixing jig 20 and the moving stage 22 may function as a moving unit.

  In the deburring method and the resinous product manufacturing method of the present invention, the deburring devices of the second to fifth embodiments can be used instead of the deburring device 1 of the first embodiment. .

It is a figure which shows the structure of the deburring apparatus which concerns on the 1st Embodiment of this invention. It is a figure which shows the electrical connection of the deburring apparatus shown in FIG. It is a figure which shows the intensity distribution of the laser beam in the process part vicinity of a workpiece | work. It is a flowchart which shows the control processing of PC32 shown in FIG.1 and FIG.2. It is a figure which shows the process part vicinity of the workpiece | work before and after a process. It is a figure which shows the light guide which concerns on 2nd Embodiment. It is a figure which shows the light guide which concerns on 3rd Embodiment. It is a figure which shows the light guide which concerns on 4th Embodiment. It is a figure which shows the light guide which concerns on 5th Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Deburring apparatus, 10 ... Shading shield box, 10a, 10b ... Shading door, 12, 14 ... Work pallet, 16 ... Loading robot (conveying means), 18 ... Unloading robot (conveying means), 20 ... Fixing jig, 22 ... moving stage, 24 ... irradiating head (laser light generating means), 26 ... optical fiber (laser light generating means), 28 ... laser light source (laser light generating means), 30 ... laser moving robot (positioning means) , Moving means), 32 ... PC (control means), 40, 40A, 40B, 40C ... light guide, 45 ... reflective film.

Claims (10)

A burr generated by a gap between the joints of the molds at the time of resin molding for removing the burr extending from the surface of the resin molded product in a vertical direction substantially perpendicular to the surface and a parallel direction parallel to the surface. In the take-off device,
In a region including the burr formed in the vertical direction and the parallel direction, a laser beam having a beam diameter more than twice the vertical length of the burr and having a Gaussian beam profile is generated. Laser light generating means for
Positioning means for determining an irradiation position of the laser light on the resin molded product so that a skirt portion in the beam profile of the laser light is incident on at least the burr from a direction intersecting the vertical direction and the parallel direction;
A moving means for moving one of the resin molded product and the laser light generating means so as to scan the laser light in the parallel direction;
A deburring device. The positioning means determines an irradiation position of the laser beam on the resin molded product such that an incident angle of the laser beam on the surface of the resin molded product is smaller than an incident angle of the laser beam on the burr.
The deburring apparatus according to claim 1.   The deburring apparatus according to claim 2, wherein an incident angle of the laser beam with respect to the burr is vertical. Conveying means for carrying in the resin molded product before processing from outside and carrying out the resin molded product after processing outside,
Control means for comprehensively controlling the laser light generating means, the positioning means, the moving means, and the conveying means;
The deburring device according to claim 2, further comprising:   The deburring apparatus according to claim 1, further comprising a light guide for guiding the laser light to the burr.   The deburring apparatus according to claim 5, wherein the light guide is in contact with the surface of the resin molded product and has a thermal conductivity higher than a thermal conductivity of the resin molded product.   The deburring apparatus according to claim 5 or 6, wherein the light guide has a reflective film on a surface along the surface of the resin molded product.   The deburring apparatus according to any one of claims 1 to 7, wherein an inert gas flows in a region including the burrs of the resin molded product. A burr generated by a gap between the joints of the molds at the time of resin molding for removing the burr extending from the surface of the resin molded product in a vertical direction substantially perpendicular to the surface and a parallel direction parallel to the surface. In the taking method,
In a region including the burr formed in the vertical direction and the parallel direction, a laser beam having a beam diameter more than twice the vertical length of the burr and having a Gaussian beam profile is generated. A laser light generation step to perform,
The skirt portion in the beam profile of the laser beam is incident on the burr at least from the direction intersecting the vertical direction and the parallel direction, and the incident angle of the laser beam with respect to the surface of the resin molded product is the laser with respect to the burr A positioning step for determining an irradiation position of the laser beam on the resin molded product so as to be smaller than an incident angle of light;
A moving step of moving one of the resin molded product and the irradiation position of the laser beam so as to scan the laser beam in the parallel direction;
A deburring method. In a resin product manufacturing method of manufacturing a resin product by resin molding using a mold,
To remove burrs generated by gaps in the joints between the molds during the resin molding and extending from the surface of the resin molded product in a vertical direction substantially perpendicular to the surface and a parallel direction parallel to the surface Has a deburring process of
The deburring process includes
In a region including the burr formed in the vertical direction and the parallel direction, a laser beam having a beam diameter more than twice the vertical length of the burr and having a Gaussian beam profile is generated. A laser light generation step to perform,
The skirt portion in the beam profile of the laser beam is incident on the burr at least from the direction intersecting the vertical direction and the parallel direction, and the incident angle of the laser beam with respect to the surface of the resin molded product is the laser with respect to the burr A positioning step for determining an irradiation position of the laser beam on the resin molded product so as to be smaller than an incident angle of light;
A moving step of moving one of the resin molded product and the laser beam so as to scan the laser beam in the parallel direction;
A method for producing a resin product.