JPH0450978Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is a cut-out that serves as a locking part when assembling hollow shaped members such as shutters, doors, or aluminum profiles made of front and back plates made of steel or resin. The present invention relates to a rotary cutting and raising device that forms a raising.

[Conventional technology]

Generally, a hollow shaped member forming a cut-and-raised structure, such as a shutter, is constructed as shown in FIG. FIG. 4 is a longitudinal sectional view of a shutter formed of front and back panels.
The shutter B has front and back panels 20a and 20b made of steel or resin, and a urethane foam material is filled between them. This shutter B has its front and back panels 20
Forming outwardly protruding cut-and-raised portions C at the upper and lower ends of a and 20b and fitting them into the upper and lower frames 21a and 21b,
It is assembled by locking it. The means for forming the above-mentioned cut and raised portions was as follows.

B. A manual jig consisting of a clamp mechanism equipped with a cut-and-raised blade was used to form cut-and-bevels at predetermined positions on each face plate in the pre-process of assembling the shapes.

(b) In addition, there is a main cam that moves forward and backward by the operation of the main cylinder, an expansion cam that is equipped with cutting blades on the outside that expand up and down when the main cam moves backward, and a shape that is shaped by the operation of the main cylinder. There is a cam-type cutting and raising device that consists of upper and lower pressing cams that press from the outside on both sides of the material. When this cutting and raising device is used for storm doors, after inserting the expansion cam into the hollow from the open end side of the front and back panels, the pressing cam moves the front and back panels outward by operating the main cylinder. At the same time, the main cam moves backward and expands the expansion cam in the vertical direction, which is the direction of the front and back plates.
As a result, a cut-and-raised portion is formed at a predetermined position from the inside of the front and back plates by pressing the cut-and-raised blade portion provided on the outside of the vertically expanding cam.

[Problem that the invention attempts to solve]

However, the above-mentioned conventional technology has the following problems.

B The manual jig consisting of a clamp mechanism, which is the former type of conventional technology, is used to attach a
Since the cut-and-raised edges are manually formed one by one, the work is not only complicated, but also has the problem of uneven formation.

B. The latter type of conventional technology, the cam-type cutting and raising device,
Cutting and raising can be formed automatically and accurately,
Since the expansion cams are placed above and below the main cam, the expansion arm inserted into the hollow part has to be dimensioned in the vertical direction and has a high height, which requires a large space between the hollow parts of the profile. Become. Therefore, there was a problem in that it was not suitable for shapes with narrow hollow space, that is, thin shapes.

This idea was devised in view of the above-mentioned problems, and it is not only easy to work with and can form cutting and raising accurately, but also a rotary type that can apply cutting and raising even if the thickness of the shape is relatively thin. The technical problem is to provide a cutting and raising device.

[Means for solving problems]

In order to solve the above-mentioned problems, this device has a pair of movable arms that can press the opposing surfaces of a hollow member from the outside, and a blade that is located between the movable arms and is attached to a rotatable support shaft. A rotary punch is formed on the inner surface of the distal end side of the movable arm, and an escape hole into which the blade of the rotary punch is inserted is formed, and the blade of the rotary punch is configured in a substantially elliptical shape so that by rotation of the blade, This is a rotary cut-and-raise device characterized in that a cut-and-rise portion of the profile is formed at its long diameter portion.

[Effect]

According to the rotary cutting and raising device of this invention, the rotary punch is placed horizontally in the hollow part of the profile, that is, the height direction of the blade of the rotary punch is tilted in the direction perpendicular to the width interval direction of the hollow part of the profile. When the movable arm is operated with the movable arm positioned on the outside of both sides of the shape, the movable arm presses both sides of the shape from above and below, creating a sandwiched state. Furthermore, by rotating the rotary punch 90° on its side,
The rotary punch is in an upright state, and the blade portion rotates along its rotation locus to form a cut-and-raised cut in the profile. Thereafter, the rotary punch is turned 90 degrees to return to its horizontal position, the pressing state of the movable arm is released, and the rotary punch and movable arm are removed from the profile, thereby completing the cutting and raising work.

〔Example〕

An embodiment of this invention will be described based on the drawings. Figure 1 of the drawings is a cutaway front view of the rotary type cutting and raising device, Figure 2 is a side view of the same rotary type cutting and raising device, and Figure 3 is a cutaway view of the rotary type cutting and raising device.
The figure is a perspective view showing the drive mechanism of the rotary punch.

The rotary cutting and raising device A is located between a pair of upper and lower movable arms 3, 3 that are movable by the operation of a cam driver 2 configured in the casing 1, and is configured in the casing 1. It consists of a rotary punch 6 that rotates by the operation of a rack 4 and a pinion 5.

The movable arms 3, 3 have their tips projected toward the front of the casing 1, and are swingably supported in the casing 1 by support shafts 7, 7. Compression coil springs 8, 8 connected to the inner wall of the casing 1 are hooked to the proximal ends of the movable arms 3, 3. The movable arms 3, 3 are always held parallel to each other by the biasing force of the compression coil springs 8, 8. Furthermore, tapered sliding surfaces 9, 9 are formed on the opposing surfaces of the proximal ends of the movable arms 3, 3, so that they can slide on the cam driver 2. The cam driver 2 is attached to the tip of a cylinder rod 11 of a cam cylinder 10 attached to the rear of the casing 1. Then, the tapered sliding surfaces 17, 17 formed on the tip side of the cam driver 2 and the sliding surfaces 9, 9 of the movable arms 3, 3 are always in contact with each other, so that the cam cylinder 1
With the telescopic operation of 0, the cam driver 2 can move forward and backward. Therefore, when the cam driver 2 moves forward, both movable arms 3, 3 are expanded about the support shafts 7, 7 against the biasing force of the compression coil springs 8, 8. As a result, the tips of the movable arms 3, 3 operate in the approaching direction using the support shafts 7, 7 as fulcrums, and grip the front and back plates 20a, 20b of the shutter B located between the movable arms 3, 3.
Press. Further, on the opposing surfaces of the distal ends of the movable arms 3, 3, there is a cut-and-raised shape that guides the protruding process of the cut-and-raised portion C... when cutting and raising the front and back plates 20a, 20b to be cut and raised. , concave escape holes 12, 12 that match the blade portion 15 are formed.

Further, the rotary punch 6 has a rack 4 connected to a rod of a rotary punch cylinder 13 attached to the lower part of the casing 1, and a support shaft 1 that meshes with the rack 4.
Using a pinion 5 attached to the base end of 4 as a drive mechanism, the distal end side of the support shaft 14 is connected to the movable arm 3,
It is made to protrude between 3 and 3. A blade portion 15 having a substantially elliptical cone shape is detachably attached to the tip of the support shaft 14 via a punch holder 17 in a screw type manner. Furthermore, a guide piece 16 is attached to the tip of the blade part 15 so that it can be easily inserted into the hollow part of the shape. The blade portion 15 is formed symmetrically with respect to the axis of the punch holder 17 with the bottom of a substantially elliptical cone facing toward the tip side, and one side thereof is in the shape of a vertically split semi-cone. The blade portion 15 is formed on the oblique side, and its outer shape is a parabola to match the shape of the cut and raised portion. As shown in FIG. 3, this blade portion 15 has a short axis _r1 corresponding to the diameter of the punch holder 17 at the bottom thereof, and a major axis _r2 of a substantially elliptical shape. Therefore, when the rotary punch cylinder 13 is extended and the rack 4 is moved upward in FIG. 1, the pinion 5 meshing therewith rotates in the direction shown by the arrow in FIG. will turn 90 degrees as shown by the imaginary line. The blade portion 15 of the rotary punch 6 turns 90° along a turning locus drawn by its major axis r ₂ and assumes an upright state. Note that the blade portions 15 having different diameters are formed on each of the plurality of punch holders 17, and are appropriately selected and used depending on the thickness of the shape material.

Next, the operation of the rotary cut-and-raise device A configured as described above will be explained using an example in which a cut-and-raise is formed on a shutter B similar to the conventional example. First, the ends of the front and back plates 20a and 20b on which cutting and raising are desired are brought close to the front part of the rotary cutting and raising device A, and the hollow opening side thereof is positioned between the movable arms 3, 3. In this state, on the outside of each of the front and back plates 20a and 20b,
The movable arms 3, 3 are positioned, and the rotary punch 6 is inserted into the hollow portion. At this time, the blade portion 15 of the rotary punch 6 is inserted with its major axis r ₂ directed in advance in a direction perpendicular to the width interval direction of the front and back plates 20a and 20b, and the minor axis r ₁
As long as the shape is thick enough to be inserted, even a thin shape can be used. Then, by extending the cam cylinder 10 and moving the cam driver 2 forward, the movable arms 3, 3 move toward the front and back plates 2.
0a and 20b are held by pinching and pressing them from the outside.
Next, the rotary punch cylinder 13 is extended and the pinion 5 is rotated clockwise in FIG. As a result, the blade part 15 stands up from the sideways state, so that the front and back plates 2
Cutting and bending is performed from the inside of 0a and 20b to form cut and raised portions C.... At this time, the cut and raised portions C protrude outward from the front and back plates 20a and 20b, but are prevented from protruding because they protrude into the relief holes 12 and 12 formed in the movable arms 3 and 3. A cut-and-raised portion C that matches the shape of the recessed portion is formed without causing any damage. Subsequently, in order to turn the blade portion 15 from an upright state to a sideways state, the rotary punch cylinder 13 is contracted and the pinion 5 is rotated counterclockwise in FIG. 2. This allows the blade part 15 to rotate at 90°.
It turns and returns from a standing state to a sideways state. Thereafter, the cam cylinder 10 is contracted, the cam driver 2 is moved backward, and the movable arms 3, 3 are released from the pressed state of the front and back plates 20a, 20b. Then, the shutter B is removed from the movable arms 3, 3, and the cutting and raising work is completed.

In this example, the blade of the rotary punch has a substantially elliptical conical shape, but the shape is not limited to this.
It may also be a flat hexagonal pyramid. Further, although the blade portion of the rotary punch is symmetrical with respect to the axis of the punch holder, the blade portion may be provided only on one side. At this time, insert the blade into the hollow shape with the blade tipped on its side, turn it 90 degrees upwards from this tipped position, and
After forming the cut-and-raise on the surface plate side, from that position
It rotates 180 degrees to form a cut-and-raised part on the back plate side.

[Effect of idea]

Since this invention is constructed as described above, it is not only possible to form cut-and-raised parts accurately and with good workability in the shape material, but also to form the hollow part of the shape material with relatively narrow intervals, that is, the thickness of the shape material. Even if the material is thin, it can be applied to cutting and raising work.

[Brief explanation of drawings]

Figure 1 of the drawings is a cutaway front view of the rotary type cutting and raising device, Figure 2 is a side view of the same rotary type cutting and raising device, and Figure 3 is a cutaway view of the rotary type cutting and raising device.
The figure is a perspective view showing the drive mechanism of the rotary punch, and FIG. 4 is a longitudinal sectional view of a shutter formed of front and back plates. A...Rotary cutting device, B...Small shutters, C...
Cut and raised portion, 2...Cam driver, 3, 3...Movable arm, 4...Rack, 5...Pinion, 6...
Rotating punch, 10... cam silling, 15... blade section.

Claims (1)

[Scope of utility model registration request] It consists of a pair of movable arms that can freely press the opposing surfaces of the hollow profile from the outside, and a rotary punch that is located between the movable arms and has a blade attached to a rotatable support shaft, and the tip side of the movable arms is The inner surface is formed with an escape hole into which the blade of the rotating punch is inserted,
1. A rotary cut-and-raise device, characterized in that the blade portion of the rotary punch is formed into a substantially elliptical shape, and the long diameter portion of the blade portion forms a cut-and-raise portion of the profile by rotation of the blade portion.