JP2011177805A - Airtight rubber cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an airtight rubber cutting device having a mechanism for guiding a cutter body and capable of cutting flat a cutting surface of airtight rubber by moving a cutter blade straight in the cutting direction. <P>SOLUTION: A pair of bodies 7a, 7b are provided. The body 7a is fixed on a stand 6, and the body 7b is movable on the stand 6 in the inserting direction of airtight rubber 2. A cutter sliding space 10 parallel to and communicated with a blade guide groove 9 is respectively provided on both the bodies 7a, 7b. A cutter supporter 13 supporting an ultrasonic cutter 12 is slidably guided by the cutter sliding space 10 to guide a cutter blade 12a and to cut the airtight rubber 2 straight. Further, the cutter blade 12a is positioned so that its direction is parallel to the direction in which the cutter supporter 13 is slidably guided by using a blade positioning tool 22 having a blade positioning groove 22e having a substantially same shape as that of the blade guide groove 9, and a positioning space 23 having a substantially same shape as that of the cutter sliding space 10 and capable of slidably guiding the cutter supporter 13. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an airtight rubber cutting device for cutting a long material of airtight rubber into a predetermined cut surface.

  Conventionally, an airtight rubber is used for a soundproof door and a soundproof sash to seal a gap between the door and the sash. This is formed by cutting a long material of air-tight rubber into a predetermined cut surface and abutting the cut surfaces to form a four-sided frame. For cutting the airtight rubber, an airtight rubber cutting device is used that inserts the airtight rubber into the support groove provided in the main body and passes the cutter blade through the blade guide groove provided to intersect the support groove to cut the airtight rubber. .

  The thing of patent document 1 is known as an airtight rubber cutting device. This is because the airtight rubber (packing material) is inserted into the support groove provided in the main body (base), the airtight rubber is brought into contact with the contact portion (stopper), and the cutter is inserted into the blade guide groove (cutting groove) of the main body. The blade is guided to cut the airtight rubber.

  Moreover, the thing of patent document 2 is also known. This is a structure in which airtight rubber (gasket material) is inserted into a support groove (insertion hole) provided in the main body (jig main body), and the cutter blade is guided in the blade guide groove of the main body to cut the airtight rubber. ing.

Japanese Utility Model Publication No. 55-175097 JP 2004-81643 A

  However, in the thing of patent document 1 and patent document 2, although a cutter blade is guided by the blade guide groove, the cutter main body is not guided. Therefore, when the cutter is moved by hand, the cutter blade moves by an amount corresponding to the groove width of the blade guide groove and becomes slightly inclined, so that it cannot be cut straight with respect to the cutting direction, and the cut surface of the airtight rubber becomes uneven. When the cut surfaces are brought into contact with each other, a gap is formed, and there is a problem that the airtightness cannot be sufficient.

  Therefore, in view of the above problems, the present invention provides a hermetic rubber cutting device that includes a mechanism for guiding a cutter body, and that can cut a cutting surface of the hermetic rubber into a flat surface by moving the cutter blade straight in the cutting direction. With the goal.

  In order to achieve the above object, the first problem solving means is provided with a support groove that guides the cutter blade in a body provided with a support groove that supports the airtight rubber so that the airtight rubber can be inserted therethrough. In an airtight rubber cutting device that cuts airtight rubber by inserting airtight rubber into the groove and passing the cutter blade through the blade guide groove, the main body is provided with a cutter sliding space that is parallel to and communicates with the blade guide groove. Is provided with a cutter support, and includes a blade guide groove, a cutter sliding space, and a cutter support, and a cutter guide mechanism that guides the cutter blade by sliding the cutter support into the cutter sliding space. That is.

  Further, the second problem solving means is provided with a pair of the main bodies on a gantry, one of the main bodies is fixed on the gantry, and the other is movable on the gantry in the insertion direction of the airtight rubber. The cutter guide mechanisms are provided respectively.

  The third problem solving means is that the cutter is an ultrasonic cutter.

  The fourth problem solving means is that the cutter is attached to the cutter support using a blade alignment jig, and the blade alignment jig has a blade position substantially the same shape as the blade guide groove. An alignment groove and an alignment space that is substantially the same shape as the cutter sliding space and is capable of sliding and guiding the cutter support, and the direction of the cutter blade is slid and guided in the direction of the cutter support. The cutter support, which has been aligned with the cutter blade, is slidably guided to the main body.

  In the first problem solving means of the present application, the main body is provided with a cutter sliding space parallel to and communicating with the blade guide groove, the cutter is supported by a cutter support, and the blade guide groove, the cutter sliding space, and the cutter are supported. And a cutter guide mechanism that guides the cutter blade by sliding the cutter support into the cutter sliding space. According to this, the cutter support that supports the cutter main body is slidably guided in the cutter sliding space, so that the cutter blade is guided in the blade guide groove without being inclined and cuts the airtight rubber. Can be cut straight to the direction.

  Further, in the second problem solving means of the present application, a pair of the main bodies are provided on a gantry, one of the main bodies is fixed on the gantry, and the other is movable on the gantry in the insertion direction of the airtight rubber. The cutter guide mechanisms are provided on both of the two. According to this, since the distance between the pair of main bodies can be easily changed simply by moving the other main body, it can be easily cut straight in the cutting direction in accordance with various cutting dimensions. . In addition, by providing a cutter guide mechanism on both of the pair of main bodies, even if the airtight rubber has different cutting angles at the cut surfaces at both ends, both ends of the airtight rubber of the long material with respect to the cutting direction can be made in one setup. And can be cut straight.

  In the third problem solving means of the present application, the cutter is an ultrasonic cutter. According to this, since the load at the time of cutting becomes very small as compared with an ordinary cutter and the deformation of the airtight rubber is reduced, the airtight rubber can be easily cut straight in the cutting direction.

  In the fourth problem solving means of the present application, the cutter is attached to the cutter support using a blade alignment jig, and the blade alignment jig has substantially the same shape as the blade guide groove. A blade alignment groove and an alignment space that is substantially the same shape as the cutter sliding space and capable of slidingly guiding the cutter support, and the cutter support is slidably guided in the direction of the cutter blade. The cutter support, which has been aligned with the cutter blade, can be slidably guided to the main body. According to this, even when the cutter is replaced, the cutter can be easily attached to the cutter support body with the cutter blade aligned in parallel with the direction of sliding guidance by the cutter guide mechanism. When attached to the cutter guide mechanism, the airtight rubber can always be cut straight with respect to the cutting direction without rattling.

It is a reference figure of a door frame which is an example of use of airtight rubber. It is a general view of the airtight rubber cutting device which is an example of the present invention. It is the III-III line expanded sectional view of FIG. It is the IV-IV line expanded sectional view of FIG. It is the figure which attached the ultrasonic cutter to the cutter support body. FIG. 6 is a VI view of FIG. 5. It is a general view of the blade alignment jig. It is the VIII-VIII sectional view taken on the line of FIG. It is the IX-IX sectional view taken on the line of FIG. It is a front view of a support block.

  Embodiments of the present invention will be described with reference to FIGS. The hermetic rubber cutting device 1 is a device that cuts a hermetic rubber 2 for sealing a gap between a door and a sash into a predetermined length from a long material and cuts the cut surface at a predetermined angle. For example, as shown in FIG. 1, the airtight rubber 2 is provided over the entire inner edge forming the opening 4 of the door frame 3, and seals a gap with a door (not shown). Therefore, in general, the airtight rubber 2 is longer in the frame frame than in the horizontal frame, and both ends thereof are cut at an angle of 45 ° and −45 °, and the cut surfaces are abutted to form a frame shape. Have been used.

  The airtight rubber cutting device 1 is provided with a pair of main bodies 7a and 7b on a gantry 6, and the pair of main bodies 7a and 7b is provided with a support groove 8 that supports the airtight rubber 2 so that the airtight rubber 2 can be inserted. Blade guide grooves 9 are provided so as to intersect each other. The pair of main bodies 7 a and 7 b is provided with a guide member 11 having a cutter sliding space 10 parallel to each blade guide groove 9. An ultrasonic cutter 12 that is a cutter for cutting the airtight rubber 2 is supported by a cutter support 13, and the cutter support 13 is slidably guided to the cutter sliding space 10, and the cutter blade 12 a of the ultrasonic cutter 12 is moved. The airtight rubber 2 is cut by guiding the blade guide groove 9.

  A pair of main bodies 7 a and 7 b are provided on the gantry 6, one main body 7 a is fixed to one end of the gantry 6, and the other main body 7 b is provided on a guide rail 14 provided from one end to the other end of the gantry 6. Is supported to be movable in the longitudinal direction of the gantry 6. On one side surface of the gantry 6, there is provided a cutter storage portion 15 that can store a cutter support 13 that supports an ultrasonic cutter 12 described later, and a column 16 that guides the main body 7 b to be slidable in the longitudinal direction. Yes. Further, a scale plate 17 for confirming the length for cutting the airtight rubber 2 is provided on the other side surface of the gantry 6.

  The support grooves 8 provided in the pair of main bodies 7a and 7b are provided in parallel with the longitudinal direction of the gantry 6 so as to be in a straight line across the main body 7a and the main body 7b. Further, the blade guide groove 9 provided in the pair of main bodies 7a and 7b guides a cutter blade 12a of an ultrasonic cutter 12, which will be described later, and is 45 ° in the main body 7a so as to intersect the support groove 8 at a predetermined angle. The main body 7b is provided at −45 °. In the present embodiment, the blade guide groove 9 is axisymmetric with respect to the support groove 8 at an angle of −45 ° and 45 ° so as to form an octagonal shape on the main body 7a side and the main body 7b side. Although provided, it is not limited to this angle. Further, as shown in FIGS. 2 and 3, the pair of main bodies 7 a and 7 b are provided with fixtures 18 for pressing and fixing the airtight rubber 2 inserted through the support groove 8 downward from above.

  A ring-shaped fixing member 19 is slidably provided on one side surface of the main body 7b. The fixing member 19 has a C-shaped slit 19a that opens from the inner periphery to the outer periphery, and a handle 20 is provided so as to connect both sides of the slit 19a. In addition, an arrow plate 21 is provided on the other side surface of the main body 7b to insert the scale of the scale plate 17.

  The guide member 11 has a rectangular parallelepiped block shape, and is provided on the upper surfaces of the pair of main bodies 7 a and 7 b so that the longitudinal direction overlaps the blade guide groove 9 in parallel. The guide member 11 is formed with a slide groove 11a having a concave cross section on the upper surface in the longitudinal direction, and extends parallel to the blade guide groove 9 so that the entire blade guide groove 9 faces through the bottom surface of the slide groove 11a. A hole 11b is formed. In addition, guide blocks 11c are provided on the upper surface of the middle portion in the longitudinal direction of the guide member 11 so as to protrude from the left and right toward the upper side of the sliding groove 11a in FIG. A cutter that can slide a cutter support 13 that supports an ultrasonic cutter 12 that will be described later and that is parallel to and communicates with the blade guide groove 9 from the space between the sliding groove 11a, the long hole 11b, and the guide blocks 11c on both sides. A sliding space 10 is configured.

  The cutter support 13 includes a sliding portion 13 a that slides in the sliding groove 11 a of the guide member 11 and a cutter holding portion 13 b that holds the ultrasonic cutter 12. The sliding part 13a has a ring-shaped outer periphery cut into a two-surface width substantially the same width as the sliding groove 11a to form a sliding surface 13c. The cutter holding portion 13b has a side surface 13d formed by cutting out the ring-shaped outer periphery into a two-surface width that is substantially the same width as between the guide blocks 11c on both sides of the guide member 11. In the cutter holding portion 13b, a slit 13e that opens from the inner periphery to the outer periphery is formed in a C shape in a direction parallel to the side surface 13d, and the other surface from one side of the side surface 13d is connected to both sides of the slit 13e. A fastening bolt 13f is provided toward the side. Then, the cutter support 13 supporting the ultrasonic cutter 12 is slidably guided to the cutter sliding space 10 by the blade guide groove 9, the cutter sliding space 10, and the cutter support 13. A cutter guide mechanism for guiding the blade 12a straight in the cutting direction is configured.

  When the ultrasonic cutter 12 is mounted and supported on the cutter support 13, as shown in FIGS. 7 to 9, a dedicated blade alignment jig 22 different from the airtight rubber cutting device 1 is used. The direction of the cutter blade 12a of the ultrasonic cutter 12 is aligned so as to be parallel to the direction in which the cutter support 13 is slid and guided in the cutter sliding space 10.

  The blade alignment jig 22 has a rectangular parallelepiped block shape, and is substantially the same shape as the guide member 11. The blade alignment jig 22 has a concave cross-section slide groove 22a formed in the longitudinal direction on the upper surface, and a concave cross-section fitting groove 22b formed in the longitudinal direction on the lower surface. And the long hole 22c parallel to the sliding groove 22a penetrated from the bottom face of the sliding groove 22a to the bottom face of the fitting groove 22b is formed. In the fitting groove 22b, blade alignment members 22d are provided on both sides in the groove width direction, and a blade alignment groove 22e parallel to the sliding groove 22a is formed by the gap. The blade alignment groove 22e has substantially the same shape as the blade guide groove 9, and the width of the blade alignment groove 22e is slightly wider than the blade thickness of the cutter blade 12a of the ultrasonic cutter 12, and is larger than the width of the blade guide groove 9. It is narrower. On the upper surface of the intermediate portion from one end in the longitudinal direction of the blade positioning jig 22, guide blocks 22f are respectively provided so as to protrude upward from the sliding groove 22a from the left and right in FIG. A stopper member 22g is provided at one end in the longitudinal direction of the sliding groove 22a so as to close the sliding groove 22a. The ultrasonic cutter has substantially the same shape as the cutter sliding space 10 of the guide member 11 that is parallel to and communicated with the blade alignment groove 22e from the space between the sliding groove 22a, the long hole 22c, and the guide blocks 22f on both sides. An alignment space 23 that can slide and guide the cutter support 13 that supports 12 is formed.

  Next, a method for aligning the direction of the cutter blade 12a of the ultrasonic cutter 12 using the blade alignment jig 22 so as to be parallel to the direction in which the cutter support 13 is slid and guided will be described. . Since the guide block 22f is provided from one end in the longitudinal direction of the blade alignment jig 22 to the middle portion, the cutter support 13 is mounted from the other end. The other end side is referred to as a cutter mounting portion 24. As shown in FIGS. 5 and 6, the ultrasonic cutter 12 is mounted on the inner periphery of the cutter support 13, and the direction of the cutter blade 12 a is set substantially parallel to the direction of the sliding surface 13 c of the cutter support 13. And The cutter support 13 is mounted on the cutter mounting portion 24 of the blade alignment jig 22, and the cutter blade 12a is inserted through the blade alignment groove 22e. Then, the cutter support 13 is slidably guided in the alignment space 23 from the cutter mounting portion 24 to one end side of the blade alignment jig 22, that is, in the direction of the arrow shown in FIGS. Once the cutter support 13 is slid and guided until it comes into contact with the stopper member 22g, it is slid and guided in the direction opposite to the arrow, and returned to the cutter mounting portion 24. By being guided, the cutter blade 12a can be aligned so as to be parallel to the sliding guide direction of the cutter support 13 that supports the ultrasonic cutter 12. Then, when the clamping bolt 13f of the cutter support 13 is tightened with the cutter blade 12a aligned, the slit 13e is narrowed, and the ultrasonic cutter 12 can be sandwiched and held on the inner periphery of the cutter holding portion 13b. The cutter blade 12a inserted from the blade alignment groove 22e does not interfere with the floor or the like by the bolts attaching the blade alignment member 22d to the fitting groove 22b. Then, the cutter support 13 that supports the ultrasonic cutter 12 is stored in the cutter storage unit 15.

  Next, the operation of the airtight rubber cutting device 1 will be described. The main body 7b is moved, and the scale plate 17 and the arrow plate 21 are used to fit a predetermined cutting dimension. When the handle 20 is rotated, the slit 19a of the fixing member 19 is narrowed, and the support column 16 is sandwiched by the inner periphery of the fixing member 19, so that the main body 7b is fixed at the position of the cutting dimension. Here, a support block 25 for preventing deflection of the airtight rubber 2 is installed on the gantry 6 between the main body 7a and the main body 7b. As shown in FIG. 10, the support block 25 is provided with a support groove 25 a for supporting the airtight rubber 2 on the upper surface and a fitting groove 25 b for fitting with the outer surface of the guide rail 14 on the lower surface. The fitting groove 25 b is fitted and fixed to the installation position on the gantry 6. Then, the airtight rubber 2 is inserted into the support grooves 8 and 25 a, the fixing member 18 is pressed against the airtight rubber 2, and the airtight rubber 2 is supported by the pair of main bodies 7 a and 7 b and the support block 25. In the present embodiment, a plurality of support blocks 25 are installed at regular intervals according to the required cutting length of the airtight rubber 2 (not shown in FIG. 2 as one). For example, this may be one support block 25 that is long in the longitudinal direction, and it is only necessary to prevent the airtight rubber 2 from being bent.

  The cutter support 13 that supports the ultrasonic cutter 12 is taken out from the cutter housing 15 and is inserted into the cutter sliding space 10 of the guide member 11 of the main body 7a as shown by a solid line in FIG. The cutter support 13 that supports the ultrasonic cutter 12 is slidably guided along the cutter sliding space 10 from the position of the solid line in FIG. 2 to the position of the two-dot chain line, that is, from the top to the bottom left in the drawing. Then, the ultrasonic cutter 12 is prevented from moving while rattling by the cutter guide mechanism. As a result, the cutter blade 12a of the ultrasonic cutter 12 is guided straight, passes through the blade guide groove 9 of the main body 7a, and the cut surface of the airtight rubber 2 is cut into a flat surface having no irregularities. The cutter support 13 that supports the ultrasonic cutter 12 is taken out from the position of the two-dot chain line in FIG. Then, the cutter support 13 that supports the ultrasonic cutter 12 is inserted through the sliding space 10 of the guide member 11 of the main body 7b, and the same operation is performed from the top to the bottom right in the figure, The airtight rubber 2 is cut into a predetermined cutting length. The cutter support 13 that supports the ultrasonic cutter 12 is returned to the cutter housing 15 after cutting. The cut airtight rubber 2 is taken out from the support grooves 8 and 25a, the next airtight rubber 2 is inserted, and the above is repeated.

In this way, the cutter support 13 that supports the ultrasonic cutter 12 is slidably guided in the cutter sliding space 10, whereby the cutter blade 12 a also supports the ultrasonic cutter 12 in the blade guide groove 9. The cutter support 13 is guided in parallel with the direction in which the cutter support 13 is slidably guided, and the hermetic rubber 2 can be cut straight with respect to the cutting direction. And by providing the cutter guide mechanism in each of the pair of main bodies 7a and 7b, even if the cutting angles at both ends are different, both ends of the airtight rubber 2 are cut straight with respect to the cutting direction by one setup. be able to. Further, since the ultrasonic cutter 12 is used as the cutter, the deformation of the airtight rubber 2 is reduced, and the airtight rubber 2 can be easily cut into a straight cut surface. Since the end surfaces of the airtight rubber 2 can be cut into straight cut surfaces, the cut surfaces cannot be uneven, and when the cut surfaces of the airtight rubber 2 are brought into contact with each other, the adhesion between the end surfaces becomes high.
In the present embodiment, the cutter is the ultrasonic cutter 12, but the present invention is not limited to this. Moreover, the ultrasonic cutter 12 employ | adopted the commercially available thing in this Embodiment.

DESCRIPTION OF SYMBOLS 1 Airtight rubber cutting device 2 Airtight rubber 6 Base 7a Body (one side)
7b Body (the other)
8 Support groove 9 Blade guide groove 10 Cutter sliding space 12 Ultrasonic cutter (cutter)
12a Cutter blade 13 Cutter support 22 Blade alignment jig 22e Blade alignment groove 23 Space for alignment

Claims (4)

A blade guide groove that guides the cutter blade is provided on the main body with a support groove that supports the airtight rubber so that it can be inserted. The airtight rubber is inserted into the support groove and the cutter blade passes through the blade guide groove. In the airtight rubber cutting device that cuts the airtight rubber,
The main body is provided with a cutter sliding space that is parallel to and communicates with the blade guide groove, the cutter is supported by a cutter support, and the cutter support includes the blade guide groove, the cutter slide space, and the cutter support. An airtight rubber cutting device provided with a cutter guide mechanism for guiding a cutter blade by sliding and guiding the cutter into a cutter sliding space.   A pair of the main bodies are provided on the gantry, one of the main bodies is fixed on the gantry, the other is movable on the gantry in the airtight rubber insertion direction, and the cutter guide mechanism is provided on both of the main bodies. The airtight rubber cutting device according to claim 1.   The airtight rubber cutting device according to claim 1 or 2, wherein the cutter is an ultrasonic cutter.   The cutter is attached to the cutter support using a blade alignment jig, and the blade alignment jig includes a blade alignment groove having substantially the same shape as the blade guide groove, and the cutter sliding space. It has an alignment space that can slide and guide the cutter support body in substantially the same shape, and can align the direction of the cutter blade so that it is parallel to the direction in which the cutter support body slides and guides. The airtight rubber cutting device according to any one of claims 1 to 3, wherein the cutter support having the cutter blade aligned is slidably guided to the main body.

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