JP2008188715A - Cutting device for straight member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device for a straight member, which is composed so as to prevent scattering of the dust generated by cutting to an exterior by attaching a dust preventing means for easily adaptable to different outside dimensions, in regard to a cutting device rotating a rotary cutter at a high speed to cut straight members such wiring ducts with a plurality of sizes. <P>SOLUTION: The cutting device for a straight member is provided with: the rotary cutter 2 for cutting the straight member W such as a duct; and a work mounting table for mounting the straight member and freely slidable in a direction approaching and separating away from the rotary cutter. It is composed such that a cutting part 3 provided with an insertion opening 32 for inserting the straight member is provided on the work mounting table, and that dust preventing means 4 having a gap matching with a shape of the straight member and a fluffy brush 42 covering up the gap and of a degree allowing insertion of the straight member, are provided on both sides of an outlet part and an inlet part of the insertion opening to prevent scattering of dust generated when carrying out cutting. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cutting device that cuts a straight member such as a wiring duct into an arbitrary length, and in particular, prevents scattering of dust generated at the time of cutting and can be cut to an accurate dimension without damaging the member. The present invention relates to a cutting device for straight strip members.

  Generally, resin wiring ducts are used for control panel wiring and indoor wiring. The wiring duct is used by cutting a long resin extruded product into a predetermined length and can be manually cut using a cutting tool such as a nipper or a cutter.

  In addition, a cutting device that mechanically cuts a straight member by rotating a cutting blade (rotating cutter) with a drive motor has been developed, and the applicant makes a straight member such as a wiring duct to a predetermined length. A cutting apparatus capable of cutting has already been filed (for example, see Patent Document 1).

Furthermore, a cutting device that is a cutting device for pipes, rods, etc. and that is provided with a cover member to prevent dust from being scattered during cutting has already been disclosed (for example, see Patent Document 2).
JP 7-195295 A (page 1-4, FIG. 2) Japanese Utility Model Publication No. 5-78462 (page 1-5, Fig. 1)

  Resin wiring ducts can be cut manually, but as the quantity increases, the work time increases, and injuries and accidents occur due to the use of cutting tools such as nippers and cutters. There is a problem of doing.

  Further, when the straight member is mechanically cut using the cutting device, the straight member is not cracked or damaged during the cutting operation, and dust from the opening through which the straight member to be cut is inserted. It is necessary to prevent scattering. Moreover, if the shape of the straight member to be cut is constant, a sealed cutting portion having an opening shape that matches the outer shape of the straight member can be formed, and scattering of dust and the like generated during cutting can be prevented.

  However, the wiring duct has various sizes, and the dimensions are not constant. Therefore, in the conventional cutting device, the guide block provided with the opening groove | channel corresponding to those various sizes is arrange | positioned, and there exists a possibility that the dust which arises at the time of a cutting may scatter from the groove part which the duct is not penetrated.

  In particular, when cutting a straight member such as a wiring duct inserted into the cutting portion by rotating the rotary cutter at a high speed, due to the problem of cracking due to the impact of the rotary cutter and the wind pressure generated by the high-speed rotation, There arises a problem that a large amount of dust scatters from the cut portion.

  An object of the present invention is to eliminate the above-mentioned problems, and in a cutting device for cutting a straight member such as a multi-dimensional wiring duct by rotating a rotary cutter at high speed, dust-proof means that can easily cope with different external dimensions. It is providing the cutting device of the straight member made into the structure which does not disperse the dust which arises at the time of cutting | disconnection to the exterior.

  In order to achieve the above object, the invention according to claim 1 includes a rotary cutter for cutting a straight member such as a duct, and a slide to a position where the straight member is placed and cut by the rotary cutter. A straight member cutting device including a workpiece mounting table that is movable, wherein the cutting member is configured to shield a cutting portion where the rotary cutter and the straight member come into contact with each other, and an insertion port serving as an entrance / exit of the straight member. Provided with a cutting part cover, and a gap matching the shape of the straight member and a fluff-like brush that covers the gap and allows the straight member to be inserted on both sides of the entrance / exit part of the insertion port. It is characterized by providing dust-proof means and preventing dust scattering that occurs during cutting.

  According to the invention according to claim 1 having the above-described configuration, since the dust prevention means having the fluff-like brush is provided at the insertion port of the straight member, the straight member cutting device that does not scatter dust generated during cutting to the outside. Obtainable.

  According to a second aspect of the present invention, the dustproof means includes a support member and a plurality of leaf spring guides extending in a horizontal direction from the support member in a comb shape, and between the upper and lower leaf spring guides. It is characterized by having a fluff-like brush mounted opposite to each leaf spring guide so as to fill the gap.

  According to the invention according to claim 2 having the above-described configuration, the gap portion of the insertion opening is completely sealed by the fuzzy brush provided so as to fill the gap between the leaf spring guide and the upper and lower leaf spring guides. Therefore, it is possible to highly prevent the dust that is scattered when the rotary cutter is cut at a high speed.

  According to a third aspect of the present invention, the straight member is a C-shaped duct having a bottom surface portion, left and right side surface portions, and an open portion on the top surface, and when the duct is placed sideways and turned sideways One side surface portion serving as an upper surface when the plurality of leaf spring-shaped guides are disposed laterally by disposing a support member for the dustproof means on the open portion side of the cover and filling the open portion. Is configured to be able to be inserted between a predetermined pair of upper and lower leaf spring guides.

  According to the invention which concerns on Claim 3 which has said structure, even if the straight strip member to cut | disconnect is a duct of a cross-section C type, it is possible to completely seal the insertion port which penetrates the straight strip member It can be a dustproof means.

  The invention according to claim 4 is characterized in that the standing angle of the support member can be displaced, and the horizontal angle of the leaf spring-shaped guide can be changed all at once.

  According to the invention which concerns on Claim 4 which has said structure, it becomes possible to change the standing angle of a dustproof means according to the shape of the straight member to cut | disconnect. Therefore, it becomes possible to easily cope with straight members having various shapes.

  The invention according to claim 5 is characterized in that the height positions of the leaf spring guides can be individually adjusted.

  According to the invention which concerns on Claim 5 which has said structure, it can further fine-tune with respect to the different shape of the straight member to cut | disconnect, and it can seal further the protrusion of the dust from an insertion port It becomes.

According to a sixth aspect of the present invention, the work mounting table is a slide table that is slidably supported on a top plate of the apparatus via slide guide means and can be manually pushed, and a substantially upper half of the rotary cutter is the upper plate. And the upper plate and the workpiece mounting table each provided with an opening groove that avoids interference with the rotary cutter, and the cutting portion cover is provided on the upper portion of the rotating cutter and the opening groove. And cutting the straight member placed on the workpiece mounting table while pushing it into a position where the rotation direction of the rotary cutter is upward. Yes.

  According to the invention according to claim 6 having the above-described configuration, the straight member is cut at a position where the rotation direction of the rotary cutter is upward, so that the impact of rotation does not press the straight member. Does not damage the parts.

  According to the present invention, in the cutting device that cuts the straight member such as the wiring duct, the dustproof means having a structure that is easily displaced according to the shape of the straight member is provided at the entrance / exit portion of the insertion port. It is possible to obtain a straight member cutting device that can satisfactorily seal the projection of dust.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a straight member cutting device according to the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the straight member cutting device K according to the present invention is inserted into the device main body 1 by inserting a straight member W such as a wiring duct so as to penetrate the cutting part 3. It is the cutting device cut | disconnected by the rotary cutter 2 to be performed.

  Although the rotary cutter 2 may be directly connected to the drive motor and driven to rotate directly, in the present embodiment, the drive is transmitted from the drive motor M1 installed inside the apparatus main body via the belt BL.

  The straight strip member W is placed on the work placement table 34 on the slide table 30. The slide table 30 is supported via a slide support means 33 attached to the apparatus main body 1, and is slidable on the upper plate 10 of the apparatus main body 1 using, for example, a slide guide or a linear guide. It is configured.

  In the present embodiment, as the slide support means 33, four slide support means 33A, 33B, 33C, and 33D having linear bearings that slide along the shaft are provided as shown in FIG. . With this configuration, the slide table 30 can be slid in the horizontal direction by arranging the shaft horizontally.

  Two slide support means 33A, 33B, 33C, and 33D are provided on each side of the slide table 30 with the cutting part 3 interposed therebetween, and the load to be supported is divided into four equal parts. Therefore, a relatively small slide support means 33 can be adopted, and a compact device design is possible.

  On the slide table 30, a work mounting table 34 and a cutting part cover 31 that covers the cutting part 3 are mounted. Further, the cutting portion cover 31 is provided with an inlet portion 32A and an outlet portion 32B that serve as the insertion port 32 for the straight member W.

Positioning means including a fastening member 36 and a stopper ST is disposed on the workpiece mounting table 34. The fastening member 36 is loosened to move the stopper ST, and the fastening member 36 is tightened at a predetermined position to fix the stopper ST. This is a fixed configuration. Further, the straight member W can be fixed at a predetermined dimension position via a scale provided on the workpiece mounting table 34. Therefore, the straight member W is
When the slide table 30 is slid by driving the rotary cutter 2 and fixing the position by inserting it so as to penetrate the cutting part 3 and pressing it against the stopper ST, the straight member W is cut to a predetermined size. Can do.

  The cutting part cover 31 is slidable together with the slide table 30 in the direction of the arrow D1 in the figure, and a rear cover 11 that houses the cutting part cover 31 is provided at the back in the sliding direction. The rear cover 11 is configured to be covered regardless of the slide position of the sliding cutting portion cover 31, and can shield the cutting portion 3. Further, an exhaust duct 12 is provided at the upper rear portion of the rear cover 11 and is connected to the suction means 14 via the suction pipe 13. A rectifying plate 17 is provided in the horizontal direction inside the rear cover 11 located below the exhaust duct 12. With this rectifying plate 17, the accompanying airflow of the rotary cutter 2 can be rectified in the direction of the suction flow of the exhaust duct 12, and most of the dust generated during cutting by the upward rotation of the rotary cutter 2 is sucked.

  The rotary cutter 2 rotates in the direction of the arrow D2 in the figure, and when the cutting portion 3 is slid to the rotary cutter 2 to perform a cutting operation, the rotary cutter 2 is cut at a portion rotating upward. I have to. Further, the accompanying airflow due to the rotation of the rotary cutter 2 is rectified by the rectifying plate 17 in the direction of arrow D3 in the figure and is discharged from the exhaust duct 12. At this time, by applying the suction flow of the suction means 14, it is possible to suck and discharge almost all of the dust generated at the time of cutting on the accompanying airflow.

  Moreover, although some dust accumulates in the apparatus lower part inside a cutting part, the dust which falls is dropped to the apparatus front side from the inclination board 15 installed in the lower part of the rotary cutter 2, and the outlet 16 provided in the apparatus front side is provided. Can be taken out from. However, since most of the generated dust is discharged from the exhaust duct 12 as described above, the amount of dust accumulated in the cut portion is very small, and the maintenance cycle can be lengthened.

  The straight member W is inserted into the cutting part 3 from an insertion port 32 provided in the cutting part cover 31. The insertion port 32 includes an inlet portion 32A and an outlet portion 32B, and the straight member W inserted through the inlet portion 32A passes through the cutting portion cover 31 and exits from the outlet portion 32B. Further, a workpiece mounting table 34 is extended on the front side of the inlet portion 32A and the rear side of the outlet portion 32B, and passes through the cutting portion 3 including the inlet portion 32A and the outlet portion 32B so as to penetrate the workpiece mounting table. The straight strip member W can be placed on 34.

  Further, in order to seal the inlet portion 32A and the outlet portion 32B, which serve as openings through which the straight members W are taken in and out, dustproof means 4 each having a fluffy brush attached to a leaf spring guide is provided. If it is this structure, scattering of the dust which arises in the case of a cutting | disconnection can be prevented, and a noise can be reduced.

  Further, when the brush member 37 is mounted on the lower surface of the slide table 30 to fill the gap between the upper plate 10 of the apparatus and the slide table 30, a gap between the lower surface of the slide table 30 that slides and the upper surface of the apparatus is provided. Since it can be sealed, it is possible to prevent dust from popping out and noise leakage at the same time, thus maintaining a good working environment.

  Further, if the sound absorbing member 35 is mounted at a predetermined position inside the cutting portion cover 31, it is possible to reduce the high-frequency noise generated when the rotary cutter 2 rotates at a high speed, and work during cutting work. The environment can be kept good. The part where the sound absorbing member 35 is mounted is preferably around the lower part behind the cutting part cover 31.

As shown in the plan view of FIG. 3, the workpiece mounting table 34 is set as the standby position 34A before the cutting operation, and the straight member W is pierced through the insertion port 32 and then slid in the direction of the arrow D4 (same as the direction D1). Then, the workpiece mounting table 34 is slid and moved to the cutting position 34B. By this sliding movement, the cutting part 3 passes through the rotary cutter 2 part and the cutting of the straight member W is completed.

  In order to be able to slide while avoiding interference with the rotary cutter 2 fixed to the apparatus, the upper plate 10, the slide table 30, and the workpiece mounting table 34 have an opening groove 6 that avoids interference with the rotary cutter 2. Are provided. Further, a substantially upper half of the rotary cutter 2 is protruded upward from the upper plate 10 and the workpiece mounting table 34.

  Therefore, when the straight strip member W is placed on the workpiece mounting table 34 so as to penetrate the cutting portion 3, the straight strip member W is installed so as to straddle the opening groove 6, and is cut by the opening groove 6 portion. Will be.

  Since the work placing table 34 is provided on the slide table 30, the straight member W and the slide table 30 are integrally slid by pushing the straight member W placed on the work placing table 34 by hand. Can be made. In addition, it is obvious that the slide range of the slide table 30 at this time is set in advance to a length range in which the straight member W is completely cut. If it is this structure, cutting | disconnection of the straight strip member W mounted in the workpiece mounting base 34 can be completed by the operation which pushes the slide table 30 once and pulls it back.

  For this purpose, a stopper (not shown) having the standby position 34A as a position where the straight member W can penetrate the cutting portion 3 and the cutting position 34B as a position where the straight member W is completely cut, It may be provided in advance on the slide table 30 side.

  Further, by providing a lock means 18 composed of a mechanical or electrical limit switch that is pressed down by the straight member W placed on the workpiece mounting table 34, the straight member W is fixed to the workpiece mounting table 34. If not present, the lock means 18 is not released, and a configuration in which the slide movement of the workpiece mounting table 34 is not permitted can be adopted. If it is this structure, since it does not slide when the cutting operation of the straight member W is not performed, it becomes the safe straight member cutting device K.

  The locking means 18 may be mechanical or electric. For example, as shown in FIG. 2 (b), a lever 18A and a slide table that protrude from the bottom of the work table 34 and a part of the side surface thereof are cut out. The rocking lock means 18 having a lock arm 18 </ b> B protruding below 30 can be provided. Further, the lock means 18 is configured to urge the lever 18A in a direction protruding upward with the support shaft 18C as a rotation center via an urging means (not shown). Therefore, in a state in which the straight member W is not placed on the work placing table 34, the lever 18A projects upward and the lock arm 18B projects downward as shown by the solid line in the figure, and is provided on the upper plate 10. It can be set as the structure engaged with 10 A of lock members, and the structure which prohibits the slide movement of the slide table 30. FIG. When the straight member W is inserted, the lever 18A comes into contact with the lower surface of the straight member W and swings downward as shown by the broken line in the figure, and the lock arm 18B swings to lock the locking member 10A. By moving away from the slide table 30, the slide table 30 can be slid.

  If it is the above-mentioned structure, it becomes a simple mechanical locking means 18 and it is preferable that complicated electric control is unnecessary, and when the cutting operation of the straight member W is not performed, it is necessary to slide the workpiece mounting table 34. If not, the slide table 30 does not slide, so that a safe straight member cutting device K is obtained.

  Next, the dustproof means provided at the insertion port 32 will be described with reference to FIGS. 4 and 5.

  The dustproof means 4 includes a support member 40 and a plurality of leaf spring guides 41 extending in a horizontal direction from the support member 40 in a comb shape. In addition, a fuzzy brush 42 is provided so as to fill the gap between the upper and lower leaf spring guides 41 so as to be opposed to each leaf spring guide 41.

  Therefore, as shown in FIG. 4, if the dustproof means 4 is provided in the insertion port 32, the opening through which the straight member W is inserted is used with the dustproof means 4 provided with the fluffy brush 42. It is possible to seal, and it is possible to prevent dust from jumping out from the straight member insertion port and noise leakage at the same time.

  In the case where the straight member W is a straight member W1 such as a C-shaped duct having a bottom surface portion 50, left and right side surface portions 51, 52, and an open portion on the upper surface, the bottom surface portion 50 having a U-shaped cross section is formed. By adopting the vertical direction and the horizontal direction with the side portions 51 and 52 as the horizontal direction, the dustproof means 4 including a plurality of leaf spring guides 41 arranged in the horizontal direction can be used. Further, the support member 40 of the dust-proof means is disposed on the open portion side when it is in the horizontal direction, and the plurality of leaf spring guides 41 are disposed so as to fill the open portion. The gap between the side surface portions 51 and 52 can be sealed by adopting a configuration in which the one side surface portion 52 serving as the upper surface can be inserted between a predetermined pair of upper and lower leaf spring guides.

  For that purpose, it is only necessary that the tip portions of the upper and lower fuzzy brushes 42 are in contact with each other. Furthermore, by using the flexible fluffy brush 42, the side portions 51 and 52 of the straight member W1 can be inserted between the upper and lower adjacent fluffy brushes 42.

  In the case of the straight member W1, such as a U-shaped wiring duct having a U-shaped cross section, the outer shape thereof is predetermined in a predetermined plurality of types. For this purpose, a plurality of leaf spring guides 41 may be provided in advance at intervals according to the dimensions. Thus, by using the dust-proof means 4 having a plurality of leaf spring-like guides 41 to which the fuzzy brush 42 is attached, it is possible to cope with a plurality of types of sizes, and at the same time, a folded portion 51 having a U-shaped cross section. , 52 can be sealed to prevent dust from popping out and noise leakage at the same time.

  At this time, as shown in FIG. 5, the support member 40 is provided with a bent portion 401, and a lower mounting round hole 403 and an upper mounting long hole 402 are provided. It can be mounted by rotating in the direction of arrow D5 in the figure, and the standing angle of the support member 40 can be displaced. Since the standing angle of the support member 40 can be displaced, the horizontal angle of the leaf spring guide 41 can be changed all at once, and the standing angle of the dustproof means 4 can be changed according to the shape of the straight member to be cut. It is suitable. Moreover, if it is this structure, it will become the dust-proof means 4 which can respond | correspond easily to the straight strip member of various shapes.

  Furthermore, when the leaf spring guide 41 is bent into an L shape and the bent portion is attached to the support member 40, the height position can be adjusted, so that the leaf spring guides 411, 412, 413, 414, 415 are provided. Each height position can be adjusted individually. With this configuration, the height of each of the straight members to be cut can be freely moved in the direction of arrow D6 in the drawing, and further fine adjustment is possible. Can be further satisfactorily sealed.

  For this purpose, either the attachment hole provided in the leaf spring-shaped guide 41 or the attachment hole provided in the support member 40 may be a long hole.

As described above, since the straight strip member W such as the wiring duct is cut at a position where the rotation direction of the rotary cutter 2 is upward, the impact of rotation does not press the straight strip member W. Even the straight member W which is easy to break is not damaged. Moreover, since it cut | disconnects by pushing the work mounting base 34 which mounts the straight member W manually and sliding, it can operate reliably, confirming a cutting state. Therefore, unlike an automated cutting device, there is no waiting time for the operator, so that a comfortable work with a sense of rhythm can be performed while realizing the cutting operation.

  In addition, since the high-frequency noise of the rotating cutter that rotates at high speed is reduced without discharging the dust from the cutting part to the outside, a more comfortable working environment can be realized.

  In the cutting operation, dust prevention means 4 set in advance in a predetermined shape is installed, straight strip member W1 such as a wiring duct having a U-shaped cross section and other straight strip members W are installed in cutting section 3, and cutting device K By operating the operation button SW and the like provided on the operation panel provided in the above, the drive motor M1 is rotationally driven to perform the cutting operation.

  For example, when the operation button SW is pressed, the rotary cutter 2 starts to rotate. At this time, the driving of the suction means 14 provided separately may be started simultaneously. After the rotary cutter 2 starts to rotate, the operator pushes the straight member W placed at a predetermined position and reciprocates the slide table 30 to complete the cutting operation. Furthermore, when the cutting operation is continued, the straight member having a predetermined length that has been cut may be removed, the straight member may be aligned again, and then cut again. After all the cutting operations are completed, the operation button SW is operated to stop the drive motor M1.

  As described above, the straight member cutting device according to the present invention places the straight member on a hand-held slide table, and pushes and cuts the rotary cutter at a position where the rotation direction of the rotary cutter is upward. The impact does not press the straight member, and the straight member is not damaged. In addition, since the straight member is cut while being pushed by hand, no waiting time is generated, and it is possible to execute it while confirming the cut state directly.

  Furthermore, dust-proofing means is provided at the insertion port that becomes the opening through which the straight member is inserted, and the brush member is attached to the lower surface of the slide table, so that the cutting part is shielded from the outside, and the rotary cutter Dust scattered on the accompanying airflow generated by the upward high-speed rotation can be reliably recovered through the exhaust duct provided on the upper portion of the cutting portion cover.

  As described above, by using the straight member cutting device according to the present invention, it is possible to prevent scattering of dust generated during cutting and to reduce noise.

It is a front sectional view showing the whole cutting device composition concerning the present invention. The cutting device which concerns on this invention is shown, (a) is side sectional drawing which shows the whole structure, (b) is expansion explanatory drawing of the principal part. It is a top view of the cutting device concerning the present invention. It is expansion explanatory drawing of the insertion port of a cutting part. It is expansion explanatory drawing of a dustproof means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Rotating cutter 3 Cutting part 4 Dust-proofing means 10 Upper plate 11 Rear cover 30 Slide table 31 Cutting part cover 32 Insertion port 33 Slide support means 34 Work table 40 Support member 41 Leaf spring guide 42 Fluffy brush K ( Cutting device for straight member W Straight member

Claims (6)

Cutting a straight strip member comprising a rotary cutter for cutting a straight strip member such as a duct, and a workpiece mounting table which is slidable to a position where the straight strip member is placed and cut by the rotary cutter. A device,
A cutting part cover provided with an insertion port serving as an entrance of the straight line member and shielding a cutting part where the rotary cutter and the straight line member abut,
Provided on both sides of the entrance / exit part of the insertion port is a dust-proof means having a gap matching the shape of the straight member and a fuzzy brush that covers the gap and allows the straight member to be inserted. An apparatus for cutting a straight member, characterized by preventing dust scattering occurring at the time.   The dust-proof means comprises a support member and a plurality of leaf spring-like guides extending in the horizontal direction from the support member in a comb-tooth shape, and fills a gap between the upper and lower leaf spring-like guides, The straight-line member cutting device according to claim 1, further comprising a fluff-like brush mounted opposite to the leaf spring-shaped guide.   The straight strip member is a C-shaped duct having a bottom surface portion, left and right side surface portions, and an open portion on the top surface, and the dust is placed on the open portion side when the duct is placed sideways, A plurality of leaf spring guides are disposed so that the support member of the means is disposed so as to fill the open portion, and one side surface portion serving as an upper surface when the side is turned sideways is a predetermined pair of upper and lower leaf springs. The straight-line member cutting device according to claim 1 or 2, characterized in that it can be inserted between the guides.   4. The straight member cutting apparatus according to claim 3, wherein the standing angle of the support member is displaceable, and the horizontal angles of the leaf spring guides can be changed simultaneously.   5. The straight member cutting device according to claim 2, wherein the height positions of the leaf spring guides can be individually adjusted. 6. The work mounting table is a slide table that is slidably supported on a top plate of the apparatus via slide guide means and can be manually pushed,
The upper half of the rotary cutter protrudes upward from the upper plate and the workpiece mounting table, and the upper plate and the workpiece mounting table are each provided with an opening groove to avoid interference with the rotary cutter,
The cutting part cover is configured to integrally cover the upper part of the rotary cutter and the opening groove to shield the cutting part,
6. The straight member according to claim 1, wherein the straight member placed on the work placing table is cut while being pushed into a position where the rotation direction of the rotary cutter is upward. Cutting device.

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