JP2005144638A - Cutting device for straight strip member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device for a straight strip member which is composed so that dust generated during cutting is not scattered to the outside of the cutting device and dust generated in a cutting chamber provided with a rotary cutter is not dispersed into a place other than the cutting chamber and is not scattered to a driving chamber provided with a driving member in the cutting device for a straight strip member for cutting the straight strip member such as a wiring duct. <P>SOLUTION: The cutting device K for a straight strip member has the cutting chamber A, into which the rotary cutter 5 is arranged, and the driving chamber B provided with a driving member. The cutting device K is composed so that a partition wall 6 for separating the cutting chamber A and the driving chamber B is arranged and a driving motor M1 arranged into the driving chamber B rotationally drives the rotary cutter 5 arranged into the cutting chamber A. The device K is also composed so that a slit window part 6A, into which a rotary driving shaft 4 for connecting the rotary cutter 5 and the driving motor M1 is freely insertable, is provided to the partition wall 6 and a shutter cover 7 for covering the slit window part 6A is arranged. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a straight member cutting device that cuts a straight member such as a wiring duct into an arbitrary length, and more particularly to a straight member cutting device configured to prevent dust from being scattered during cutting. Is.

  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. An application has already been filed for a cutting device for a straight member that can be cut (see, for example, 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).
Japanese Unexamined Patent Publication No. 7-195295 (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.

  In addition, when mechanically cutting a straight member using a cutting device, in the example of a cutting device provided with a cover, it can be configured so that dust generated at the time of cutting is not scattered outside the device. The dust scattered inside the apparatus provided with a drive unit that rotates and swings the cutter remains as it is. For this reason, dust is scattered on the drive unit that rotates the rotary cutter, the drive unit that swings the arm that holds the rotary cutter, and the like, causing malfunctions and malfunctions.

  An object of the present invention is to provide a rotary cutter in a straight member cutting device that cuts a straight member such as a wiring duct in order to eliminate the above-mentioned problems. It is an object of the present invention to provide a straight member cutting device configured to prevent dust generated in a cutting chamber from diffusing to other than the cutting chamber and not to be scattered in a driving chamber provided with a driving member.

  In order to achieve the above object, the invention according to claim 1 is a straight member cutting device having a cutting chamber having a rotary cutter and a driving chamber having a driving member, wherein the cutting chamber, the driving chamber, A rotary drive shaft for connecting the rotary cutter and the drive motor, wherein a partition wall for separating the rotary cutter is provided, a rotary motor provided in the cutting chamber is rotationally driven by a drive motor provided in the drive chamber Is provided in the partition wall, and a shutter cover for shielding the window portion other than the portion through which the rotational drive shaft is inserted is provided.

  According to the invention concerning Claim 1 which has the above-mentioned composition, the dust etc. which arise when a rotary cutter is rotationally driven and cut do not diffuse to a drive room provided with a drive member.

  According to a second aspect of the present invention, a rotary cutter having a drive motor is disposed at the tip of an arm that can swing between a standby position and a cutting position, and the rotary cutter is moved from the standby position to the cutting position together with the arm. In a straight member cutting device that swings up to and cuts a straight member such as a wiring duct placed on the cutting part, a partition wall that isolates the rotary cutter and the drive motor is provided, and the partition wall A slit window portion through which a rotary drive shaft connecting the drive motor and the rotary cutter is inserted, and a slit through which the drive shaft moves while the arm provided with the rotary cutter swings A shutter cover that shields the window is provided.

  According to the invention according to claim 2 having the above-described configuration, even if the rotary cutter swings between the standby position and the cutting position, the rotary drive shaft that rotationally drives the rotary cutter is inserted and swings. The shutter cover can be completely shielded from the slit window portion, and diffusion of dust and the like generated during cutting can be prevented.

  The invention according to claim 3 is a resin in which the shutter cover is a fan-shaped flat plate that is pivotable about a support shaft, and is supported by the arm and mounted to fit the rotation drive shaft. A U-groove portion with which a guide member made of metal is engaged. And is configured to pivot between the standby position and the cutting position.

  According to the invention according to claim 3 having the above-described configuration, even if the arm and the rotary cutter swing between the standby position and the cutting position, the slit window portion through which the rotary drive shaft is inserted, It can be shielded by a resin guide member and a shutter cover.

  The invention according to claim 4 is characterized in that the shutter cover is of such a size that the entire length of the slit window portion is always shielded both when the arm is in the standby position and in the cutting position.

  According to the invention which concerns on Claim 4 which has said structure, even if the said arm and rotary cutter are in a stand-by position or a cutting position, the said slit window part can be shielded reliably.

  According to the present invention, in a straight member cutting device for cutting a straight member such as a wiring duct, the dust generated at the time of cutting is not scattered outside the cutting device, and the dust generated in a cutting chamber equipped with a rotary cutter is cut. It is possible to obtain a straight member cutting device that is configured not to diffuse to a drive chamber provided with a drive member without being diffused to other than the chamber.

  In a straight member cutting device that cuts straight members such as wiring ducts, dust generated at the time of cutting is not scattered outside the cutting device, and dust generated in a cutting chamber equipped with a rotary cutter is diffused outside the cutting chamber. For this purpose, a partition wall for separating the rotary cutter and the drive unit is provided, and a rotary drive shaft is inserted through the partition wall. This is realized by providing a shutter cover that shields the slit window portion that moves while the drive shaft is inserted when the arm provided with the rotary cutter swings.

  Hereinafter, an embodiment of a straight member cutting device according to the present invention will be described with reference to FIGS. 1 to 4.

  FIG. 1 is a front sectional view showing the overall configuration of a straight member cutting apparatus according to the present invention, and FIG. 2 is a side sectional view. FIG. 3 is a configuration diagram of a main part at a cutting position. FIG. 4 is an enlarged cross-sectional view showing the mounting structure of the shutter cover according to the present invention.

  As shown in FIGS. 1 and 2, the straight member cutting device K according to the present invention inserts a straight member W such as a wiring duct placed horizontally so as to penetrate the cutting part 10, and It is an apparatus which cut | disconnects with the rotary cutter 5 with which a front-end | tip part is mounted | worn.

  In addition, the partition wall 6 is disposed inside the main body K0 of the cutting device K, and is divided into a cutting chamber A having a rotary cutter 5 and a driving chamber B in which a driving member is built.

  The arm 1 is swingable about a support shaft 2 mounted on a bearing block 3 disposed on a main body bottom K2 of the cutting device K, and a rotary cutter 5 is driven to rotate at the swinging tip. A driving motor M1 is mounted, and a motor M2 including a gear G is mounted at an intermediate portion of the arm 1.

  The gear G rotated by the motor M2 meshes with the gear-shaped surface of the rail R disposed on the partition wall 6 and moves so that the arm 1 rotates around the support shaft 2. It is configured to be swingable between the cutting position 1A and the standby position 1B.

  That is, the drive motor M1 is a motor that rotationally drives the rotary cutter 5, and the motor M2 is a motor that swings the arm 1 around the support shaft 2.

  In addition, the swing position detecting member 30 detects the swing position of the arm 1 and executes a drive and stop operation. The swing position detection member 30 has a cutting position detection sensor 31 and a standby position detection sensor 32. When the arm 1 swings and reaches the cutting position 1A, the cutting position detection sensor 31 detects it. A stop signal is issued. Reference numeral 31A denotes a breakage prevention sensor which is forcibly stopped when the swinging operation is not stopped even when the cutting position detection sensor 31 detects it or when the stoppage is delayed. Similarly, 32 is a standby position detection sensor, and 32A is a forced stop sensor.

  As described above, the arm 1 is configured to be swingable between the cutting position 1A and the standby position 1B along the rail R by driving the motor M2.

  Next, the process of cutting the actual straight member W will be described.

  Support tables 18 and 19 are installed on both sides of the cutting device K, and a mounting table 17 is disposed. The straight member W is placed on the upper body K1 of the cutting device K so as to pass through the cutting portion 10 and to be placed on the mounting table 17 provided with a scale. At this time, the arm 1 is at the standby position 1B, and the straight member W can be inserted through the opening 10A of the cutting portion 10. Comb guides 11 are mounted on the front inlet side and the rear outlet side of the opening 10A, respectively, and are inserted into the groove 11A (see FIG. 3) that matches the outer shape of the straight member W.

  Further, the comb-shaped guide 11 has a shape having a large number of grooves so that the groove portion 11 </ b> A matches the dimensions of a plurality of types of straight strip members W. For this purpose, a brush BR is mounted on the inner side of each comb-shaped guide 11 in order to prevent dust from scattering from the groove portion through which the straight strip member W is not inserted.

  The brush BR is a brush-like brush in which flexible linear members are closely packed so as to shield the opening 10A from the outside, and the straight linear member W is pushed in to expand the flexible linear member. It can be inserted freely.

  For this purpose, even if the straight member W is placed on the mounting table 17 through the cutting part 10 provided with the brush BR and the comb-shaped guide 11 on both sides, and the cutting part 10 is cut, Dust and the like generated in this way will not scatter from the comb-shaped guide 11 part. In addition, since the comb-shaped guide 11 is provided, it is possible to perform the cutting operation safely without human hands or clothing entering the cutting portion 10.

  The cutting operation is performed by swinging between the standby position 5B and the cutting position 5A while the rotary cutter 5 attached to the swinging tip side of the arm 1 rotates. For this purpose, after the straight member W is installed, the operation buttons 21A, 21B and the like disposed on the control panel 21 disposed on the main body upper portion K1 of the straight member cutting device K are operated to drive motors. The cutting operation is performed by rotating M1 and swinging the arm 1 from the standby position 1B to the cutting position 1A.

  For example, when the operation start button is pressed, the rotary cutter 5 swings from the standby position 5B to the cutting position 5A and then moves and stops for one cycle until it returns to the standby position 5B. Furthermore, a stop button for forcibly stopping when an abnormality occurs is provided so that an emergency stop can be made at the operator's discretion.

  A stopper 15 including a fastening member 16 is disposed on the mounting table 17 on which the straight member W is mounted, and is fixed at a predetermined size position via a scale on the mounting table 17. For this purpose, a straight member W such as a wiring duct is inserted so as to pass through the cutting part 10 and pressed against the stopper 15, and then the rotary cutter 5 is driven. By swinging up to 5A, the straight member W can be cut to a predetermined size.

  An exhaust duct 12 is provided in the upper part of the cutting part 10, and a suction pipe 13 is connected so that the suction device 14 sucks dust generated during cutting. Further, the dust falling downward is taken out by opening the take-out cover 20 provided at the lower part of the cutting chamber A.

  In that case, it can also be set as the structure which arrange | positions the mesh 41 and 42 for taking in external air in the cutting part 10 vicinity, and increases the suction efficiency by the suction device 14. FIG.

  If it is said structure, it will become the structure by which the air which flows in from the said mesh 41 and 42 parts is attracted | sucked with dust by the suction of the suction device 14, and the dust etc. which arise in the cutting part 10 can be sucked effectively. . However, since the air of the cutting part 10 is disturbed by the rotating cutter 5 that rotates at high speed, a part of the dust falls due to its own weight and accumulates on the main body bottom K2 of the straight member cutting apparatus K.

  Therefore, in order to confine dust accumulated on the bottom K2 of the main body within a predetermined range, a partition wall 6 is provided inside the main body K0 of the cutting device K, and a cutting chamber A in which the rotary cutter 5 is disposed, and a driving member. It is set as the structure which divides | segments into the drive chamber B in which is built. Further, the drive chamber B has a configuration in which all the electrical devices and electrical components such as the swinging arm 1, the drive motor M1, and the motor M2 are accommodated. Furthermore, since the partition wall 6 is notched in the portion where the rotational drive shaft 4 of the oscillating rotary cutter 5 is inserted and moved, and is provided with the slit window portion 6A, dust or the like that falls into the cutting chamber A is generated. The drive chamber B is difficult to enter, and the drive chamber B is not easily dropped into the drive section of the arm 1 or the electric wiring section.

  In addition, a shutter cover 7 is provided so that dust does not enter the drive chamber B from the slit window 6A. The shutter cover 7 is a sheet metal shutter for shielding the slit window 6A, and almost completely shields the opening other than the portion through which the rotation drive shaft 4 is inserted. Although the swing movement of 4 is allowed, other openings are completely shielded to prevent intrusion of dust and the like.

  Here, the shutter cover 7 and its mounting structure will be described with reference to FIGS. The shutter cover 7 is attached to the holder 8A disposed on the arm 1 through the resin guide member 8. At this time, the rotation drive shaft 4 of the rotation drive motor M1 is configured to be inserted into the center hole of the guide member 8, and the rotation drive shaft 4 is rotatable without contact with the center hole. Furthermore, the rotary cutter 5 is fixed to the tip of the rotary drive shaft 4 via steel mounting guides 9A and 9B, and the rotary cutter 5 is driven to rotate via the rotary drive shaft 4. is there.

  Although the guide member 8 is mounted via the holder 8A disposed on the arm 1, the guide member 8 is directly mounted on the frame of the drive motor M1 and the rotational drive shaft is mounted. Alternatively, it may be configured to move with the drive motor M1 in conjunction with the swing of the arm 1.

  When the motor 1 is driven and the arm 1 swings, the drive motor M1 also swings together with the holder 8A, and the guide member 8 fitted in a non-contact state with the rotary drive shaft 4 becomes the slit window 6A. It is set as the structure which slides along.

  The guide member 8 has a central hole through which the rotation drive shaft 4 can be inserted, and is mounted so as to fit the rotation drive shaft 4, and a small-diameter portion 8 a and a large-diameter portion 8 b are attached to the outer shape portions thereof. And. The small diameter portion 8a slides in the slit window portion 6A, and the large diameter portion 8b is fitted in the U groove portion 7D of the shutter cover 7 to be slidable. Therefore, when the guide member 8 slides along the slit window portion 6A together with the rotational drive shaft 4 that swings, the U groove portion 7D is pushed, and the shutter cover 7 rotates the support shaft 7C. It is the structure which rocks as a center. That is, when the arm 1 and the drive motor M1 swing and the rotary cutter 5 swings between the standby position 5B and the cutting position 5A, the shutter cover 7 also moves from the standby position 7B to the cutting position 7A in conjunction with the movement. It is configured to swing up to.

  Of course, since the guide member 8 is a resin guide, it also serves as a sliding guide when sliding while contacting the partition wall 6 provided with the slit window 6A. Therefore, the opening of the slit window portion 6A can be shielded by bringing the guide member 8 into contact with the partition wall 6.

  The shutter cover 7 is a fan-shaped flat plate provided with a support shaft 7C serving as a pivot point, and may be a metal flat plate or a resin flat plate. In addition, a U-groove portion 7D with which the guide member 8 is engaged is provided, and the standby is similarly performed in conjunction with the rotary drive shaft 4 that moves with the arm 1 that swings between the standby position 1B and the cutting position 1A. It is set as the structure which turns between the position 7B and the cutting position 7A.

  The large diameter d2 of the guide member 8 sliding in the U groove portion 7D is slightly smaller than the groove width H of the U groove portion 7D, and the small diameter d1 of the guide member 8 is the width D1 of the slit window portion 6A. The dimensions are slightly smaller.

  Moreover, it is good also as a structure which provides the diameter d3 part larger than the said large diameter d2, and the side surface of the resin-made guide members 8 shields the said slit window part 6A completely.

  The length L of the U groove 7D is such that the guide member 8 is always stably positioned in the U groove 7D when the shutter cover 7 swings from the standby position 7B to the cutting position 7A. Have.

  As described above, the small diameter d1 of the guide member 8 is slightly smaller than the width D1 of the slit window 6A, and is slidable along the slit window 6A. A rotary cutter 5 is attached to the rotary drive shaft 4 via steel mounting guides 9A and 9B, and is fixed by a nut member 4a.

  Therefore, when the drive motor M1 installed in the drive chamber B is driven and the rotary drive shaft 4 is driven to rotate, the rotary cutter 5 disposed in the cutting chamber A is driven to rotate. The rotating cutter 5 that is rotating in conjunction with the movement of the arm 1 supporting the drive motor M1 is swingable along the slit window 6A. In conjunction with the movement, the shutter cover 7 also swings to shield the slit window 6A.

  That is, the dust falling in the cutting chamber A in which the rotary cutter 5 to be rotationally driven stays only in the cutting chamber A and does not enter the driving chamber B from the slit window portion 6A. For this reason, dust or the like does not fall on the arm 1, the drive section of the arm, the electric wiring section, or the like, so that unnecessary troubles and failures are not caused.

  Furthermore, by opening the take-out cover 20 provided at the lower part of the cutting chamber A, dusts accumulated in the cutting chamber A can be taken out in a lump.

  As described above, the straight member cutting device K is constituted by the cutting chamber A and the driving chamber B, and the partition wall 6 for separating the cutting chamber A and the driving chamber B is provided, and the cutting chamber is provided. The rotary cutter 5 disposed in A is configured such that the drive motor M1 disposed in the drive chamber A is rotationally driven, and the rotary drive shaft 4 connecting the rotary cutter 5 and the drive motor M1 is freely inserted. Since the window portion 6A is provided on the partition wall 6 and the shutter cover 7 is provided to shield the slit window portion 6A, dust or the like generated when the rotary cutter 5 is driven to rotate is driven. It does not diffuse into the driving chamber B provided with members.

It is front sectional drawing which shows the whole structure of the cutting device of the straight member which concerns on this invention. It is side surface sectional drawing which shows the whole structure of the cutting device of the straight member which concerns on this invention. It is a principal part block diagram of a cutting position. The expanded sectional view which shows the attachment structure of the shutter cover which concerns on this invention is shown.

Explanation of symbols

1 arm 1A cutting position 1B standby position 4 rotary drive shaft 5 rotary cutter 5A cutting position 5B standby position 6 partition wall 6A slit window portion 7 shutter cover 7A cutting position 7B standby position 7D U groove portion 10 cutting portion 11 comb-shaped guide A cutting chamber B Drive chamber K Straight member cutting device M1 Drive motor W Straight member

Claims (4)

A straight member cutting device having a cutting chamber with a rotary cutter and a drive chamber with a drive member,
A partition wall that separates the cutting chamber and the driving chamber is disposed, and a rotary motor disposed in the cutting chamber is configured to be driven to rotate by a drive motor disposed in the driving chamber. The partition wall is provided with a window portion through which a rotation drive shaft that connects to a motor can be inserted, and a shutter cover that shields the window portion other than the portion through which the rotation drive shaft is inserted is provided. Straight member cutting device. A rotary cutter provided with a drive motor is disposed at the tip of an arm that can swing between a standby position and a cutting position, and the rotary cutter swings from the standby position to the cutting position together with the arm, so that a cutting portion In a straight member cutting device for cutting a straight member such as a wiring duct placed on
A partition wall for separating the rotary cutter and the drive motor is provided, a slit window portion through which a rotary drive shaft for connecting the drive motor and the rotary cutter is inserted is provided in the partition wall, and a rotary cutter is provided. A straight member cutting apparatus, comprising: a shutter cover that shields a slit window portion that moves while the drive shaft is inserted when the arm swings.   The shutter cover is a fan-shaped flat plate that is rotatable around a support shaft, and is supported by the arm and engaged with a resin guide member that is mounted so as to fit the rotation drive shaft. When the rotary drive shaft swings between the standby position and the cutting position together with the arm, the U drive is moved by the guide member interlocked with the swing, so that the standby position and the cutting position are The straight-line member cutting device according to claim 2, wherein the straight member is configured to pivot between the two. 4. The shutter cover according to claim 2 or 3, wherein the shutter cover is of a size that always shields the entire length of the slit window portion when the arm is in a standby position or in a cutting position. Straight member cutting device.

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