KR100882448B1 - Deburring apparatus and method thereof - Google Patents

Abstract

Provided are a deburring apparatus and a deburring method using the same, which can selectively perform a cutting treatment and a flame treatment according to the size of a burr of a resin molded article.

A deburring apparatus for deburring a resin molded article by performing a cutting process and a flame treatment, and a deburring method using the same, comprising: a fixture for holding a resin molded article at a predetermined position, a flame spraying portion for performing a flame treatment on the resin molded article, and a resin molded article And a cutting unit for cutting the cutting process and a switching device for switching the cutting process and the flame process, respectively.

Burr, Cutting, Flame Treatment, Deburring Device

Description

Deburring Device and Deburring Method {DEBURRING APPARATUS AND METHOD THEREOF}

The present invention relates to a deburring apparatus and a deburring method of a resin molded article. More specifically, the present invention relates to a deburring apparatus and a deburring method capable of selectively performing a cutting treatment and a flame treatment in accordance with the size of a burr of a resin molded article.

The deburring work for a resin molded article having a burr at the periphery is conventionally performed by separating and cutting the resin molded article and the burr, and melting and smoothing a burr having a small width remaining at the periphery of the resin molded article to perform a deburring finish. It is a process which takes a long time and it takes time, and it became a factor which raises the manufacturing cost of a finished product.

Therefore, a deburring apparatus for separating and cutting the resin molded article and the burr, melting the burr left in the resin molded article, adsorbing the resin molded article by the surface tension and smoothing the burr portion has been proposed (for example, a patent). See Document 1).

More specifically, as shown in FIG. 15, the holding means 201 which hold | maintains the resin molded article which has a burr in a periphery, and the hot gas blowing means 202 which blows out the high temperature gas which melts the material which comprises a burr. ) And a three-dimensional drive device 203 for driving the hot gas blowing means 202 to blow out hot gas at a burr portion adjacent to the resin molded article along the resin molded article. The hot gas blowing means 202 melts the burr portion close to the resin molded article to separate and cut the resin molded article and the burr, and melts the burrs remaining in the resin molded article and adsorbs them to the resin molded article by the surface tension. A deburring apparatus 200 for smoothing has been proposed.

Moreover, as shown in FIG. 16, during the conveyance of the grating body 301, the burner 302 is arrange | positioned over the grating | lattice width in the direction crossed with a conveyance direction, and the grating body 301 of the burner 302 is carried out. A method of performing deburring by passing in a flame has been proposed (see Patent Document 2, for example).

That is, since the burr protruding from the main body of the lattice 301 has a small heat capacity as a thin protrusion, when it passes the flame of the burner 302, it melt | dissolves and disappears rapidly. The melted burr is a deburring method that can integrate with the main body of the lattice 301 by surface tension to form a smooth surface.

[Patent Document 1] Japanese Patent Application Laid-Open No. 6-71658 (claim)

[Patent Document 2] Japanese Patent Laid-Open No. 11-54127 (claim)

However, the deburring apparatus disclosed in Patent Literature 1 has a problem that it is difficult to remove the burrs sufficiently because both the relatively large burrs and the relatively small burrs have hot gas blowing means and must blow out the hot gas to melt the burrs. In particular, when applied to large resin molded articles such as automobile parts, there is a problem that deburring tends to be insufficient because various burrs exist.

That is, there is a problem in that the resin molded article is damaged when a relatively large bur is sufficiently removed. On the other hand, there is a problem that a relatively large burr is likely to remain in order to sufficiently remove a relatively small burr without damaging the resin molded article.

On the other hand, even if the flame based on the deburring method disclosed in Patent Document 2 is applied to a burr of a metal lattice, when applied to a relatively small burr of other resin molded articles, there is a problem that not only the burr but also the resin molded article is damaged. .

In addition, no mention was made of mechanisms corresponding to burrs of different sizes and thicknesses seen in large resin molded parts such as automobile parts.

Accordingly, the inventors of the present invention have diligently studied to find that effective burrs can be removed in a short time by providing a mechanism for selectively performing cutting and flame treatment depending on the size and thickness of the resin molded article. The invention was completed.

That is, the present invention provides a deburring apparatus and a deburring method, each of which can effectively remove burrs in a short time even when applied to a large resin molded article such as an automobile part having a large number of burrs having different sizes or thicknesses. It is aimed.

According to the present invention, there is provided a deburring apparatus for deburring a resin molded article by performing a cutting treatment and a flame treatment, comprising: a fastener for holding the resin molded article at a predetermined position, a cutting portion for cutting the resin molded article, and a resin molded article There is provided a deburring apparatus including a flame spraying portion for carrying out a flame treatment with respect to and a switching device for switching between cutting processing and flame processing, respectively, thereby solving the above-mentioned problems.

That is, by providing the mechanism which selectively performs a cutting process and a flame process according to the burr size of a resin molded article in this way, comparatively large deburring in a resin molded article can be performed effectively mainly by a cutting process. On the other hand, removal of a relatively small burr can also be performed in a short time without damaging a resin molded article mainly by flame processing. Therefore, even when it is applied to large resin molded articles such as automobile parts in which various burrs exist, effective deburring treatment can be performed in a short time.

Moreover, in constructing the deburring apparatus of this invention, it is preferable that the flame spray part and the cutting part are attached to one robot arm.

By configuring in this way, the magnitude | size and structure of the drive part of a flame spray part and a cutting part can be simplified.

Therefore, the resin molded article having a large and complicated shape such as an automobile part can be applied as a deburring device having a compact drive unit.

Moreover, when constructing the deburring apparatus of this invention, it is preferable that a flame spray part is a pilot ignition system.

Since a spark is used as an ignition part in a flame spraying part by such a structure, durability and safety of an ignition part can be ensured compared with ignition several times with respect to a flame spraying part.

Further, in the deburring apparatus of the present invention, the flame injector is preferably an injector for injecting a flame generated from fuel gas containing a silane compound.

By such a configuration, the deburring apparatus can be provided with a function of performing a flame treatment for improving the surface adhesion of the resin molded article, and a deburring apparatus capable of performing surface treatment and deburring of the resin molded article can be provided. have.

In the deburring apparatus of the present invention, it is preferable that a fixture is provided on the movable rail, and a shutter is provided so as to cross the movable rail.

By configuring in this way, the installation place and the deburring place of a resin molded article can be isolate | separated by a movable rail and a shutter. Therefore, the operation | work of a deburring apparatus can be performed more efficiently and safely.

Moreover, when constructing the deburring apparatus of this invention, it is preferable that a fixture consists of a frame frame and a suction apparatus.

By configuring in this way, the size and structure of the fastener can be simplified. Therefore, it can be applied as a compact deburring apparatus also to resin molded articles having a large and complicated shape such as automobile parts.

In the construction of the deburring apparatus of the present invention, when the above-described fastener is the first fastener, the resin molded article after the deburring treatment is held temporarily as the first fastener and temporarily fixed to the upper side of the first fastener. It is preferable to further provide a second fastener for.

By configuring in this way, the size and structure of the fixture can be simplified, and the deburring apparatus can be improved with twice the working efficiency.

In addition, another aspect of the present invention is a deburring method for deburring a resin molded article in a state held in a fixture by performing a cutting treatment and a flame treatment, and a fixing step for holding the resin molded article in the fixture and a resin molded article. It is a deburring method characterized by including the cutting process process for cutting process, the flame process process which flame-processes a resin molded article, and the switching process for switching cutting process and flame process, respectively.

That is, by selectively performing in this way, the cutting treatment is mainly applied to the large burr of the resin molded article, while the flame treatment can be mainly applied to the relatively small burr. Therefore, a resin molded article having a large and complicated shape such as an automobile part can be carried out in a short time without damaging the resin molded article.

Moreover, in implementing the deburring method of this invention, when using the above-mentioned fastener as a 1st fastener, the resin molded article after carrying out the deburring process by holding it as said 1st fastener is provided in the upper part of the said 1st fastener. It is preferable to include the process of temporarily fixing by a fixture. By doing in this way, a deburring process and a desorption process can be performed simultaneously with respect to many resin molded articles, and work efficiency can be doubled.

As described above, in the deburring apparatus and the deburring method of the present invention, by including a predetermined fixture, a predetermined flame spraying portion, a predetermined cutting portion, and a predetermined switching device, the size and shape of the burr of the resin molded article, etc. Correspondingly, cutting treatment and flame treatment can be performed selectively. Of course, only the cutting process may be performed in the first scan, and only the flame process may be performed in the second scan.

Therefore, according to the deburring apparatus and the deburring method of this invention, even when it is applied to large resin molded articles, such as an automotive part, effective deburring is enabled for a short time.

As a result, according to the deburring apparatus and deburring method of this invention, the manufacturing cost of a resin molded article can be reduced significantly.

[First Example]

As shown in Fig. 1, the first embodiment is a deburring apparatus 10 for deburring a resin molded article by performing a cutting process and a flame treatment, and includes a fastener 14 for holding the resin molded article 12 at a predetermined position. ), A cutting portion 16 for cutting the resin molded article 12, a flame spraying portion 18 for performing a flame treatment on the resin molded article 12, and a cutting treatment and a flame treatment are switched respectively. The deburring device 10 including the switching device 20 for this purpose.

Hereinafter, with reference to FIGS. 1-12, the aspect of the deburring apparatus 10 of this invention is demonstrated concretely.

1. Basic Configuration

(1) deburring device

As shown in FIG. 1, the deburring device 10 is basically a fixture 14, which is a holder of the resin molded article 12, a cutting portion 16 for cutting, and a resin molded article 12. It is comprised by the flame spraying part 18 for flame processing, and the switching device 20 for switching between cutting processing and flame processing, respectively.

Moreover, such a fixture 14, the cutting part 16, and the flame spraying part 18 are accommodated in the housing 30 assembled in the substantially rectangular parallelepiped form. And it is comprised so that the flame of the flame-jet part 18 may not leak to the exterior by covering the exterior of the housing | casing 30 with the wall panels 30a, 30b, and 30c.

Moreover, after carrying in the resin molded article 12 which has a predetermined | prescribed bur in the work area C, it moves to the deburring process area B, and after deburring, the work area for isolate | separating the resin molded product 12, In order to return to (C), the shutter 14f is provided in the middle of the opening passage in front of the deburring apparatus 10.

In addition, the area | region shown with the symbol A in FIG. 1 is an arrangement | positioning area | region of the cutting part 16, the flame spraying part 18, etc. In FIG.

In addition, as shown in FIG. 2, in the deburring device 10, a cutting unit 16 having a cutter 16a or the like and a flame spraying unit 18 having a burner 18a or the like are used as one robot. It is preferably attached to the arm 22.

The reason for this is that the configuration and the size of the robot arm 22 as the driving unit can be simplified. Therefore, the resin molded article 12 having a large and complicated shape such as an automobile part can also be applied as the deburring device 10 having a compact drive portion. In addition, since the cutting portion 16 and the flame spraying portion 18 are adjacent to each other, switching between them can be performed quickly.

Here, as shown in FIG. 3, the robot arm 22 moves suitably in the three-axis direction of the X-axis, Y-axis, and Z-axis which are orthogonal to each other, as shown by the arrow, and also moves the base 22g of a support column. Rotational driving around the center is also possible. That is, the robot arm 22 can be moved to any position in the 360 degree direction by the servo motor or the pulse motor, and accordingly, the cutting part 16 and the flame spraying part 18 can be moved to a predetermined position. have.

Although not shown, the robot arm 22 is connected to a control device that exhibits a switching function, and the cutting unit 16 and the flame spray unit attached to the robot arm 22 with such a control device interposed therebetween. The deburring process can be efficiently performed while appropriately switching (18).

In addition, since the deburring process can be performed as it is at the fixed position in the work area C, and the desorption after the deburring process is also easy, it is preferable to keep the resin molded article almost in the horizontal direction even after moving to the deburring process area B. FIG.

Therefore, a certain distance, for example, 0.1 to 10 cm, between the cutting portion 16 and the flame spraying portion 18 in the robot arm 22 between the surface or the edge portion of the resin molded article held almost horizontally. It is preferable to proceed to transfer as it is while maintaining.

(2) resin molded products

As a resin molded article which performs deburring (including a deburring finish), an automobile bumper as shown in FIG. 4 is typical. Further, the resin molded article can be applied to various automobile parts such as automobile interior materials, automobile front panels, and automobile seats. Such automobile parts are large resin molded articles, and a large number of large and small burrs are likely to occur, while the appearance, safety, and smooth surface are required.

More specifically, such automotive parts are usually hollow resin molded articles obtained by injection molding or blow molding a polypropylene resin (hereinafter referred to as PP) or other olefin resin. Immediately after the molding, most of them have a relatively large cylindrical burr, a flat burr, or a relatively small thin film burr at the periphery.

Therefore, the deburring device 10 of the present invention is selective for a burr having a relatively large bur, for example, a cylindrical bur having a circular equivalent diameter of about 1 to 15 mm in diameter, or a flat burr having a thickness of about 1 to 15 mm. It is preferable to perform a cutting process.

On the other hand, a relatively small burr, for example, a cylindrical burr having a circular equivalent diameter of less than 0.01 to 1 mm in diameter, and a flat burr having a thickness of less than 0.01 to 1 mm, is provided by the deburring apparatus 10 of the present invention. It is preferable to carry out the flame treatment selectively.

In addition, the size of such a resin molded article is 1000-2000 mm in width, 200-800 mm in height, 200-500 mm in height, and the length of the perimeter is 2000-5000 mm per resin molded article. However, in addition to such a dimension, the deburring apparatus 10 of this invention can apply the resin molded article which generate | occur | produces many sizes, thickness, etc. suitably.

2. Fixture

In addition, as shown in Fig. 5, the fastener 14 of the resin molded article 12 is taken out from a predetermined resin molding machine to the outside, and a mounting table for holding the resin molded article 12 having burrs at its periphery ( Iii).

As shown in FIG. 5, the fastener 14 of the resin molded article 12 has a pear-shaped frame frame 14a in which both ends thereof are lifted so as to correspond to the external shape of an automobile bumper or the like that is the resin molded article 12. It is preferable that it consists of the over suction apparatus 14b and the stopper 14c.

Among them, the frame 14a is a member for supporting the resin molded article 12 and holding it at a predetermined place.

In addition, although the suction hose etc. are abbreviate | omitted, the suction device 14b is a member for holding it fixedly in a predetermined place with the frame 14a.

In addition, the stopper 14c is a member that serves as a reference for positioning when the resin molded article 12 is regulated in a predetermined direction and the resin molded article 12 is held at a predetermined place.

That is, by forming the fastener 14 of the resin molded article 12 in this way, the resin molded article 12 can be held reliably and quickly at a predetermined place while simplifying the size and structure of the fastener 14. Therefore, the resin molded article having a large size and a complicated shape such as an automobile part can be applied as a compact deburring apparatus including a predetermined fastener.

Moreover, when the contact part of the two stoppers 14c shown in FIG. 5 is equipped with the rotatable disk member 14d, respectively, and it contacts with the resin molded article 12, it cannot move to a vertical direction, but is a horizontal direction. Is configured to slide slightly. Therefore, the resin molded article 12 can be reliably held at the most stable position of the frame 14a.

However, even when deburring in a relatively soft and large resin molded article 12, in order to prevent damage to the surface thereof while fixing the resin molded article 12, or to prevent slippage of the resin molded article 12, For this reason, as shown in FIG. 5, it is more preferable to use the frame 14a which wound the leather 14g partially.

In addition, as shown in FIG. 6, about the suction apparatus 14b with respect to the resin molded article 12, the pressure of the suction chamber 15b which consists of the suction part 15a and an elastic member, and the suction part 15a is adjusted. It is preferable that it consists of the pressure plate 15c for this purpose.

This is because such a suction device 14b is basically composed of an elastic member, so that even a relatively large resin molded article 12 can be securely fixed without damaging the surface or the like.

7A to 7B, the fasteners 14 of the resin molded article 12 are provided on the movable rail 14e, and the shutter 14f is arranged to cross the movable rail 14e. It is preferable that it is provided. FIG. 7A shows a situation in which the resin molded article 12 is transferred from the working region C to the deburring treatment region B by the movable rail 14e with the shutter 14f open. 7B has shown the situation for performing the deburring process of the resin molded article 12 in the deburring process area | region B with the shutter 14f closed.

The reason for this is that the work area C and the deburring treatment area B for attaching and detaching the resin molded product can be clearly separated by the movable rail 14e and the shutter 14f. This is because, by using such movable rail 14e, the deburring process can be performed as it is at the horizontal position fixed in the work area C, and the attachment and detachment after the deburring process also becomes easy.

Therefore, the working area | region C of a resin molded article can be ensured widely, and it can use efficiently. On the other hand, while detaching the resin molded article 12 after the deburring treatment is completed, the robot arm 22 is smoothly and quickly operated in the deburring treatment region B, so that the deburring treatment can be performed on the other resin molded article 12. . That is, with this structure, the deburring operation by the cutting part 16 and the flame spraying part 18 in the robot arm 22 can be performed more efficiently and safely.

In addition, although not shown, when clamping the fastener 14 of the resin molded article 12 with respect to the movable rail 14e and the support stand 14h of the fastener 14, the kind (shape and size) of the resin molded article 12 is shown. It is preferable that a plurality of clamps be provided. That is, it is preferable to change the fastener 14 also according to the kind of resin molded article 12, and to change the position of a clamp and the clamp itself accordingly.

The reason for this is that one of the plurality of clamps is selected according to the type of the resin molded article 12, and the information is transmitted to the control device, and the cutting unit or the flame treatment unit is adapted to the type of the resin molded article 12. This is because a predetermined deburring operation can be automatically performed without a mistake. Therefore, even if many kinds of resin molded articles 12 are mixed in a series of deburring operations, a predetermined deburring operation by a predetermined cutting section or flame processing section can be automatically performed without mistakes.

3. Cutting part

Next, the cutting part 16 for cutting the material which comprises a burr is demonstrated, referring FIGS. 8A-8D.

More specifically, as shown sequentially in Figs. 8A to 8D, a laser device (heating device) 16d with a cutter (shaving blade), a knife, a power supply 16e, a disc blade, and the like, are mounted on the robot arm 22. It is preferable to provide it in the front-end | tip of (). That is, a relatively large bur can be selectively cut using these cutting jigs. In addition, the arrow in each cutting jig represents the moving direction of a cutting part, and a burr is cut off according to the direction.

In addition, although not shown, the robot arm 22 is connected to the control apparatus which exhibits a switching function, and appropriately switches the cutting part 16 attached to the robot arm 22 through such a control apparatus. The deburring process can be efficiently performed.

In addition, in order to simplify the size and structure of the flame spraying portion and the driving portion of the cutting portion, as shown in FIG. 2, the cutting portion 16 and the flame spraying portion 18 to be described later are provided with one robot arm 22. It is preferably attached to.

4. Flame spray

Next, with reference to FIG.2 and FIG.9, the flame-injection part 18 which blows out the flame for melting the material which comprises a burr is demonstrated.

As shown in FIG. 2, such a flame spraying portion 18 is provided at the tip portion 22a of the robot arm 22, and according to the shape of the resin molded article 12, with respect to the burr of the resin molded article 12. It is a part which drives to inject the flame 18b, and the burner 18a shown in FIG. 9 is typical.

That is, for a relatively small burr, the surface can be smoothed by selectively flame-processing using the flame spraying part 18 provided with the burner 18a as shown in FIG.

Moreover, since the flame spraying part 18 is provided in the front-end | tip part 22a of the robot arm 22, it can move to the arbitrary position of a 360 degree direction, and flame spraying according to the movement of the robot arm 22. FIG.

Although not shown, the distal end portion of the burner 18a communicates with the fuel source containing the combustible gas with the pipe 18e interposed therebetween, whereby the combustible gas is appropriately transferred to burn at the outlet of the burner 18a. You can.

Moreover, the burner 18a which is a representative example of the flame-injection part 18 joints the combustible gas, such as propane gas and natural gas, which are conveyed through the piping 18e, and the air conveyed through the piping 18f. An apparatus for injecting a flame generated from fuel gas obtained by uniformly mixing in the portion 18d.

Here, the shape of the flame injector 18 is not particularly limited, and is slightly different from the burner 18a as shown in FIG. 2, but for example, a plurality of gas outlets as shown in FIG. 9. It is preferable to use the gas burners 18a in which 18b are arranged in parallel.

That is, to the gas inlet 18b, the burner main body 18c, the burner extension part 18h, the gas flow meter 18k, the plate 18L, the gas storage part 18m, 18n etc. which were arranged in parallel horizontally. The gas burner 18a made is preferable. And so-called LPG gas and oxygen introduced from the two types of gas inlets 18i and 18g with the gas flow meter 18k interposed therebetween are not mixed to the gas outlet 18b so that the pressure loss is as small as possible. The linear mixing burner 18a is preferable.

Moreover, it is preferable to provide a control panel 18p at the burner outlet so that a flame can be sprayed only in a predetermined position and is not radiated to an unexpected location, and in the injection direction and above the injection direction at least.

Moreover, although it changes also with the kind of fuel gas or resin molded article, such flame temperature is the range of about 500-1000 degreeC, and the flame length is the range of about 5-40 mm is suitable. And it is a structure which melt | dissolves and smoothes the flame | burr from the burner 18a, melt | dissolving the said part, and deburring with respect to the bur of a resin molded article.

In addition, in order to perform the deburring operation more selectively, it is preferable to blow out the flame 18b with the inner diameter of the tip hole of the burner 18a being 0.2-2.0 mm.

In addition, as shown in FIG. 10, it is preferable that the flame spraying unit 18 adopt a pilot ignition system.

The reason for this is that by constituting the flame spraying portion 18 in this way, the durability of the ignition portion caused by ignition several times with respect to the burner 18a or the like and the sparks can be suppressed to ensure safety. This is because the flame injector 18 can ignite and extinguish very finely, thereby reducing fuel gas consumption and reducing carbon dioxide generation.

In other words, when the flame injector 18 always injects the flame, a large amount of fuel gas consumption is generated and waste is generated, and safety may also be reduced. On the other hand, by employing a pilot ignition system and preparing sparks with low fuel gas consumption, the consumption of fuel gas can be significantly reduced. In addition, because of the spark, problems such as excessive ignition are reduced.

In addition, as shown in FIG. 10, the flame detection means 19 detects the state, a safety device reliably stops flame irradiation from the flame spraying part 18, or ignites again depending on a condition. It is preferable to make it.

For example, it is possible to confirm that the spark 19c is stuck by providing the ultraviolet photoelectric tube ultra vision (manufactured by Sanmu Advance Automation Company) 19b as the flame detection means 19. In that case, if it is confirmed that the spark 19c is turned off, the supply of fuel gas for the spark 19c is stopped. Moreover, by providing the other flame detection means 19a, it can be confirmed that the flame is transferred from the spark 19c to the burner 18a, or the flame is stably sprayed from the burner 18a.

Therefore, by constructing the flame spraying portion 18 provided with the plurality of flame detecting means 19a and 19b in this way, the safety and economical efficiency of the flame spraying portion 18 can be ensured, and the stability of the deburring operation is highly improved. I can keep it.

5. Switching device

Next, the switching device 20 for switching between cutting processing and flame processing is explained.

More specifically, as shown in FIG. 1, the switching device 20 is a control device that performs a switching function of cutting processing and flame processing. Therefore, the operation of the cutting part 16 and the flame spraying part 18 attached to the robot arm 22 is switched between such control devices, and the optimum deburring is selected according to the size of the burr, and the deburring is performed. The process can be performed efficiently.

In addition, the control device as the switching device 20 preferably includes a position control system for the arm robot 22, a shape memory device for the resin molded article 12, and the like.

The reason for this is that having such a control device accurately recognizes the location of the resin molded article 12 and enables uniform and rapid deburring at the flame generating unit regardless of the shape and size of the resin molded article 12. .

After the position and shape of the resin molded article 12 is recognized and stored in the control apparatus once, the arm robot 22 can be operated on the basis of the recognized information to ensure reliable deburring.

6. 2nd fixture

In addition, as shown in FIG. 1 or FIGS. 11A-11C, although it is a modification of the deburring apparatus 10 in 1st Example, when the above-mentioned fastener is made into the 1st fastener 14, the 2nd fastener ( It is preferred to further include 24).

That is, it is preferable to provide a fastener for holding and retaining the resin molded article 12 after the deburring treatment as the second fastener 24 as the first fastener 14, and being held above the first fastener 14. . In addition, when moving the 2nd fixture 24 up and down, it is preferable to employ | adopt the rack and pinion system.

The reason for this is that the deburring device 10 can be provided in which the working efficiency is doubled by this configuration. Moreover, it is because the left-right balance in the 2nd fixture 24 can be easily taken by employ | adopting a rack and pinion system.

Next, with reference to FIGS. 11A-11C, the deburring process which improved the deburring efficiency using the 1st fixture 14 and the 2nd fixture 24 is demonstrated. 11A to 11C, the side view of the deburring device 10 is shown on the left side, and the front view of the deburring device 10 is shown on the right side.

First, as shown in FIG. 11A, the resin molded product 12 transferred from the work area C is held in the first fixture 14 with the shutter 14f closed in the deburring treatment area B. FIG. The deformed resin molded article 12 is subjected to deburring. At this time, the second fastener 24 is in a state of waiting above.

Subsequently, when the deburring is completed, the shutter 14f is closed and the resin molded article 12 held in the first fastener 14 is moved to the work area C.

Subsequently, as shown in FIG. 11B, the resin molded article 12 in which the second fastener 24 waiting on the upper side is deburred is lifted upward in a fixed state by the suction devices 24a on the left and right sides. In addition, immediately before the second fastener 24 is lifted upward, the first fastener 14 stops the suction operation to leave the deburred resin molded article 12 free.

Since the first fastener 14 is in an empty state, the new resin molded article 12 is placed thereon and fixed by suction operation. About this new resin molded article 12, shutter 14f is opened and the new resin molded article 12 is moved to the deburring process area | region B. FIG.

Subsequently, as shown in FIG. 11C, after the new resin molded article 12 is moved to the deburring treatment area B, the shutter 14f is lowered to perform the deburring treatment on the new resin molded article 12. At the same time, the deformed resin molded article 12 is lowered into the work area while the second fastener 24 is held. Here, the suction by the suction device 24a of the second fastener 24 is released to remove the deburred resin molded article 12. Then, the second fastener 24 is again in a waiting state, as shown in Fig. 11A.

Therefore, by repeating the operation shown in FIGS. 11A to 11C, the work area C of the resin molded article can be secured widely, while the resin molded article is formed using the first fastener 14 and the second fastener 24. Simultaneously with the attachment and detachment of (12), the robot arm 22 is smoothly and quickly operated in the deburring treatment area B so that the deburring treatment is possible.

That is, by providing and implementing the 1st fastener 14 and the 2nd fastener 24 in this way, the operation operation | movement of the robot arm 22, ie, the cutting process and flame treatment of the resin molded article 12 is further performed. It can be done more efficiently and safely.

7. Burr recovery part

In addition, as shown in Fig. 5, it is preferable to include a burr recovery portion 14i for collecting the cut burrs in one place.

More specifically, such a burr collection part 14i is configured as a storage location in the form of a box, for example, and is disposed on the movable rail 14 inside the support 14h to facilitate the take-out. It is preferable that the structure be movable with the frame 14a, the suction device 14b, and the like as the fastener 14.

8. Housing

1, the fixture 14, the burner 18a, and the robot arm 22 of the resin molded article 12 are housed in a housing 30 assembled in the form of a rectangular parallelepiped. That is, by being accommodated in the housing 30, it is possible to ensure the safety and economical efficiency of the flame spraying portion 18 and the cutting portion 16, while maintaining a stable implementation of the deburring operation by driving the robot arm 22 Can be.

In addition, two movable rails 14e are attached to the lower portion of the deburring device 10, that is, the lower portion of the housing 30. That is, when attaching the resin molded article 12 which has a burr, the fastener 14 can be fixed to the work area | region C and it can implement quickly. On the other hand, when it is going to perform deburring with respect to the resin molded article 12, the resin molded article 12 hold | maintained by the fixture 14 can be moved to the deburring process area | region B, and it can implement quickly and safely.

[Example 2]

The second embodiment is a deburring method for deburring a resin molded article in a state held in a fixture by performing cutting and flame treatment, and includes a fixing step for holding a resin molded article in the fixture and a cutting process for the resin molded article. This is a deburring method including a cutting treatment step, a flame treatment step of performing a flame treatment on the resin molded article, and a switching step of switching the cutting treatment and the flame treatment, respectively.

Hereinafter, an aspect of the deburring method of the second embodiment will be described in detail according to the manufacturing flow chart shown in FIG.

1. Preparation process

As shown in FIG. 12, before starting the use of the deburring apparatus, in order to make the deburring operation of the resin molded article more efficient, a preparation process may be provided to clean the surface of the resin molded article or to perform the surface homogenization treatment. It is preferable to carry out.

The reason for this is that when the release agent or the like adheres to the surface of the resin molded article, the fixability of the resin molded article may decrease or the deburring efficiency of the resin molded article may decrease.

Moreover, in order to make the deburring operation of a resin molded article more efficient, it is preferable to make the gap of the temperature of a resin molded article constant. More specifically, it is preferable to warm the resin molded article and to make the temperature difference within the range of ± 30 ° C, more preferably within the range of ± 20 ° C, and even more preferably within the range of ± 10 ° C. .

The reason for this is that when a gap occurs in the temperature of the resin molded article, the deburring efficiency of the resin molded article may decrease or the deburring may not be sufficient.

Moreover, although it changes also with the constituent material of a resin molded article, it is preferable to specifically control the actual temperature of a resin molded article to the value within 20-80 degreeC range, and it is more preferable to control to the value within 30-70 degreeC range.

2. Fixed process

First, as shown in FIG. 12, as shown by S2, a resin molded article 12 having a burr at a peripheral portion taken out from a blow molding machine is subjected to a suction device 14b on a frame-shaped fixture 14 as shown in S2. Place it in place and fix it. That is, as shown in FIG. 4, the fixing process of the resin molded article is a process of holding the resin molded article 12 at a predetermined position (fixing tool 14) using a predetermined apparatus (suction apparatus 14b).

At this time, the resin molded article and the burr are held on the fasteners 14 of the resin molded article 12 by the suction device 14b so that a change does not occur in their relative positional relationship even after they are separated and cut.

In addition, although the deburring apparatus 10 showed the example comprised from the frame 14a and the suction apparatus 14b as the fixture 14, this invention is not limited to this.

For example, as the other fastener 14, a block-shaped member made of a resin material or a pin-shaped member made of a metal or a resin material is also possible.

3. Cutting treatment process

The cutting process is a process of starting a deburring apparatus and removing a comparatively large bur of a resin molded article, as shown by S3 in FIG.

More specifically, a relatively large bur can be selectively processed by the cutting part provided with the cutting jig 16, such as a cutter, a knife, a laser (hot wire), at the front-end | tip of the robot arm 22. As shown in FIG.

On the contrary, even when a burr is to be removed and cut by a flame treatment, which will be described later, an excessively long time is required, resulting in a problem of damaging the resin molded article. On the other hand, even for a relatively small burr, not only takes excessive time to remove by cutting, but also has a problem of easily damaging the surface of the resin molded article.

Therefore, in the cutting step, by selectively cutting for the deburring of a predetermined size, it is possible to reliably, efficiently and economically eliminate the burr to be targeted.

4. Conversion process

Next, as shown in S4 in FIG. 12, a switching process for switching between cutting processing and flame processing, respectively, will be described.

More specifically, by selecting and removing a cutting treatment for a relatively large burr and selecting and removing a flame treatment for a relatively small burr, not only the treatment can be performed in a short time but also the problem of damaging the surface of the resin molded article well is solved. Can be.

That is, a switching process is a process of switching a predetermined cutting process and flame processing, respectively.

For example, about the resin molded article which has a comparatively large burr and a comparatively small burr, the cutting process S3 is normally performed for a predetermined time, and then the switching process is performed so that flame processing S5 which will be described later is performed for a predetermined time. It is preferable to carry out.

Of course, for example, when the number of relatively large burrs is small, it is also preferable to perform the flame process (S5) mentioned later, and to perform a switching process so that the cutting process (S3) mentioned above may be performed after that.

In addition, although it varies depending on the positional relationship between a relatively large burr and a comparatively small burr, when there are comparatively large burrs at both ends, the above-mentioned cutting process S3 is given to one end part for a predetermined time, and then in the intermediate part It is also preferable to perform a switching process so that flame processing (S5) mentioned later may be performed for a predetermined time, and the cutting process (S3) mentioned above is performed for a predetermined time to the other end part again.

5. Flame Treatment Process

The flame treatment step is a step of removing a small burr on the surface by spraying a flame on the burr of the resin molded article according to the shape of the resin molded article, as shown by S5 in FIG. 12. .

Therefore, the deburring apparatus 10 is started, and the flame generator and robot arm 22 which are not shown are operated, and the flame temperature is about 800 degreeC from the burner 18, and the flame length is about 5-40 mm. Is blown into the burr part of the resin molded article 12, and the burner 18 is scanned along the periphery of the resin molded article 12 with a control device (not shown) in between.

Moreover, in the deburring apparatus 10, it flames from the burner 18 so that the width | variety of the burr remaining in the resin molded article 12 may be 1-1.5 mm over the width | variety of 1-1.5 mm from the periphery of the resin molded article 12. It is preferable to blow off.

6. Desorption process

As shown in S6 in FIG. 12, the attaching and detaching step is a step of removing the deburred resin molded article according to the deburring method, and then fixing the resin molded article to be treated.

More specifically, when attaching the resin molded article which has a burr, a deburring apparatus can be fixed to a detachable area | region, and can implement quickly. On the other hand, when it is going to perform deburring with respect to a resin molded article, a deburring apparatus can be moved to a process area, and it can carry out quickly and safely.

That is, a detachment process is a process of attaching and detaching the resin molded article before a deburring process, and the resin molded article after a deburring process, respectively.

In addition, although it can fully perform even if it is a manpower about the implementation of a detachment process, it is also preferable to improve work efficiency using a robot arm etc. further.

[Example 3]

The third embodiment has the same basic configuration as the deburring apparatus described in the first embodiment, but further includes a fuel tank for supplying a fuel gas containing a silane compound as the fuel gas supplied to the flame injection portion, wherein the flame injection portion is It is a deburring apparatus which makes it possible to inject a flame generated from a fuel gas containing a silane compound.

The following description focuses on differences from the first embodiment.

1. Flame jet

In the deburring apparatus of this embodiment, as shown in Fig. 13, a first storage tank for storing the silane compound 34 having the heating means 36 as a means for supplying fuel gas to the flame injector 18 ( 32, a second storage tank (not shown) for storing flammable gas such as compressed air, and a mixing chamber 38 for mixing gases sent from the first storage tank 32 and the second storage tank, respectively. It is provided. In this example, the heating means 36 which consists of a heater, a heating wire, the heating plate connected to the heat exchanger, etc. is provided in the lower part of the 1st storage tank 32, and a liquid silane compound 34 is a normal temperature and normal pressure state. ) Is to vaporize.

And when surface-treating a hard-adhesive base material, it heats and vaporizes the silane compound 34 in the 1st storage tank 32 by the heating means 36 to predetermined temperature, and vaporizes it. It is preferable to compress by the pump 37 and to mix with flammable gas (air etc.) in the mixing chamber 38, and to make it a combustion gas.

Although there is no restriction | limiting in particular about the kind of silane compound, For example, an alkylsilane compound, an alkoxysilane compound, or its modified | denatured thing is mentioned.

Among these compounds, alkylsilane compounds generally have a low boiling point, and are generally preferred silane compounds because they can be easily vaporized by heating and uniformly mixed with air or the like.

Suitable examples of such alkylsilane compounds include tetramethylsilane, tetraethylsilane, 1,2-dichlorotetramethylsilane, 1,2-diphenyltetramethylsilane, 1,2-dichlorotetraethylsilane, 1,2-di One kind single or 2 types or more combinations, such as a phenyl tetra ethyl silane, 1, 2, 3- trichloro tetra methyl silane, 1, 2, 3- triphenyl tetra methyl silane, dimethyl diethyl tetra silane, are mentioned.

Of these alkylsilane compounds, tetramethylsilane and tetraethylsilane are particularly preferred silane compounds because they have a low boiling point and are easily mixed with air and the like, and halogenated silane compounds such as 1,2-dichlorotetramethylsilane have a surface modification effect. It is an excellent silane compound because it is excellent.

In addition, although the alkoxysilane compound of the above-mentioned compound generally has many high boiling points because of its ester structure, as long as the boiling point is in the range of 10-100 degreeC, it is excellent surface modification with respect to a hard-adhesive base material. Since an effect can be exhibited, it is a preferable silane compound. In addition, it is preferable to make the average molecular weight of a silane compound into the value within 50-1,000 range in mass spectrum measurement.

This is because when the average molecular weight of such a silane compound is less than 50, the volatility may be high and difficult to handle. On the other hand, when the average molecular weight of such a silane compound exceeds 1,000, it is because it may become difficult to mix easily with air etc. by evaporation by heating.

Therefore, it is more preferable to make the average molecular weight of a silane compound into the value within the range of 60-500 in mass spectrum measurement, and it is still more preferable to set it as the value within the range of 70-200.

In addition, the density of the silane compound in the liquid state is 0.3 to 0.9 g / cm ³ It is preferable to set it as the value within a range.

The reason is that the density of these silane compounds is 0.3 g / cm ³ If it is less than, it may become difficult to handle or to accommodate in an aerosol can. On the other hand, when the density of such a silane compound exceeds 0.9 g / cm <^3> , it becomes difficult to vaporize and it may be in the state which isolate | separated completely with air etc. when accommodated in an aerosol can.

Therefore, the density of the silane compound is 0.4 to 0.8 g / cm ³ It is more preferable to set it as the value within a range, 0.5-0.7 g / cm <^3>. It is more preferable to set it as the value within a range.

2. Fixture

In addition, the deburring apparatus of this embodiment performs the deburring process for removing burrs existing at the edges of the resin molded article, and at the same time, uses the flame generated from the silane compound described above, and the adhesiveness of the surface of the resin molded article 12 is improved. Surface treatment to improve is performed. Therefore, as shown in FIG. 14, the fastener 44 provided in the deburring apparatus of this embodiment is the frame frame 44a corresponding to the shape of the surface side which did not surface-treat the resin molded article, and in the resin molded article. Suction 44b for suctioning and fixing the resin molded article in contact with the surface side on which the surface treatment is not performed, and a stopper serving as a reference for positioning when the resin molded article is held at a predetermined position by regulating the movement of the resin molded article in a predetermined direction. 44c is provided. About a structure other than that, it can be like the 1st fastener of a 1st Example.

The example of FIG. 14 is comprised in order to perform the deburring of the edge of the bumper for automobiles, and the surface treatment of a coating surface, and to raise a coating surface upwards, and to support the lower back surface side by the frame frame 44a, and the suction part 44b. It is to hold | maintain with the stopper 44c, fixing by suction.

3. How to use

An example of the deburring treatment and the surface treatment of the bumper for automobile using the deburring apparatus of this embodiment is demonstrated below.

First, after cleaning the surface of the resin molded article or performing the surface homogenization treatment as in the second embodiment, the painted surface subjected to the surface treatment is sucked up by the suction portion from the lower back side toward the upper side, and at the same time, the stopper Hold by and fasten on the fixture.

Subsequently, the burr which exists in the edge of a resin molded article is removed by performing cutting and flame processing with respect to the edge of a resin molded article like a 2nd Example. At this time, the flame radiated from the flame spray part may not contain the vaporized silane compound.

Subsequently, the silane compound in the first storage tank is vaporized by the heating means, and mixed with the flammable gas in the mixing chamber to be supplied to the flame injector, and the flame generated from the silane compound is emitted from the flame injector. And a robot arm is operated by the control apparatus which memorize | stored the external shape of a resin molded article previously, and uniformly surface-treats with respect to the coating surface of a resin molded article.

Other conveyance steps and the like can be performed in the same manner as in the second embodiment.

Thus, according to the deburring apparatus of this embodiment, since the adhesiveness of a surface can be improved, even if the burr of a resin molded article is removed, the number of manufacturing apparatuses can be reduced and production efficiency of an automobile bumper etc. can be improved. have.

1 is a view showing the basic configuration of a deburring apparatus according to a first embodiment of the present invention.

2 is a view provided to explain a state in which a cutting part with a cutter and a flame spraying part with a burner are attached to one robot arm.

3 is a view provided to explain the motion and rotational motion of the robot arm in the three-dimensional direction.

It is a figure which shows the bumper for automobiles as an example of a resin molded article.

It is a figure provided in order to demonstrate the fastener of a resin molded article.

It is a figure which shows the suction device comprised from a suction part and a suction chamber.

7A and 7B are views provided for explaining the relationship between the movable rail and the shutter in the fixture of the resin molded article.

8A to 8D are views provided to explain various aspects of the cutting portion.

9 is a view provided for explaining the flame spray (burner).

10 is a view provided to explain the pilot ignition scheme of the flame sprayer.

11A-11C are diagrams provided to illustrate the second fixture.

12 is a flowchart illustrating a deburring method according to the second embodiment.

FIG. 13 is a diagram illustrating a configuration of a flame sprayer of the deburring apparatus according to the third embodiment. FIG.

14 is a view showing the configuration of a fixture of the deburring device according to the third embodiment.

Fig. 15 is a diagram showing the configuration of a conventional deburring apparatus (prior art 1).

It is a figure which shows the structure of the conventional deburring apparatus (prior art 2).

   *** Explanation of symbols for the main parts of the drawing ***

10: deburring device 12: resin molding

14: Fixture 14a: Frame frame

14b: Suction device 14c: Stopper

14d: disc member 14e: movable rail

14f: Shutter 14g: Leather member

14h: Support 14i: Recovery part

15a: Suction part 15b: Suction room

16: cutting part 18: flame spraying part

20: switching device (control device) 22: robot arm

24: The second fixture 30: Housing

30a to 30c ： wall panel 32 ： first storage tank

34: silane compound 36: heating means

38: Mixed room 44: Fixed mouth

44a: Frame frame 44b: Suction part

44c ： Stopper

Claims (9)

A deburring apparatus for deburring a resin molded article by performing a cutting treatment and a flame treatment, A fixture for holding the resin molded article in a predetermined position; A cutting portion for cutting the resin molded article, A flame spraying part for performing a flame treatment on the resin molded article, Switching apparatus for switching said cutting process and flame process, respectively Deburring apparatus comprising a. The method of claim 1, Deburring apparatus, characterized in that the cutting portion and the flame spraying portion is attached to one robot arm. The method of claim 1, Deburring apparatus characterized in that the flame spraying unit is a pilot ignition system. The method of claim 1, The flame injector is a deburring device, characterized in that for injecting a flame generated from the fuel gas containing the silane compound. The method of claim 1, And the fastener is provided on the movable rail, and a shutter is provided to cross the movable rail. The method of claim 1, Deburring apparatus characterized in that the fixture is composed of a frame frame and a suction device. The method of claim 1, In the case where the fastener is the first fastener, a second fastener is further provided for temporarily holding and retaining the resin molded article after the deburring treatment on the first fastener, above the first fastener. Deburring Device. A deburring method for deburring a resin molded article in a state held in a fixture by performing a cutting treatment and a flame treatment, A fixing step for holding the resin molded article in the fixture; A cutting treatment step for performing a cutting treatment on the resin molded article, A flame treatment step of performing flame treatment on the resin molded article, Conversion process for switching said cutting process and flame treatment, respectively Deburring method comprising a. The method of claim 8, In the case where the fastener is used as the first fastener, a step of temporarily fixing and holding the resin molded article after the deburring treatment by holding the first fastener by the second fastener provided above the first fastener is included. Deburring method characterized in that.

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