JPH0160372B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a traveling cutter for extruded profile materials, which cuts the profile material while moving at a constant speed while still in a soft state extruded from an extruder.

The moving speed of the still soft mold material extruded from the extruder is theoretically considered to be the product of the extrusion ratio and the ram speed, but in reality, even with the same extrusion ratio, dimensional errors in bearing length, aluminum It changes due to variations in extrusion conditions such as the inflow amount and billet temperature, and variations in the quality of the billet material, so simply calculating from the product of extrusion ratio and ram speed will result in poor accuracy.

Therefore, in a conventional traveling cutting machine, the method of detecting the shape material speed is to install a tatsuchi roll on the initial table, bring it into contact with the shape material passing over it, rotate the tatsuchi roll, and detect the rotation speed of the traveling cutting machine. He controlled the speed. However, with this method, if the mold material is small or the extrusion is unstable and the mold material becomes wavy or twisted, Tatsuchi Roll will not be able to detect the speed of the mold material.
As a result, the traveling cutting machine had the disadvantage that it could not synchronize with the speed of the shape material.

In order to solve the above-mentioned drawbacks, the inventor of the present invention conducted various studies and found that even if a puller using a linear motor grips the extruded form under certain conditions and applies tension, stop marks occur on the form. Taking a cue from the fact that it has been empirically found that We discovered that it is possible to tune into
This completes the present invention.

In other words, the present invention includes a slat conveyor that supports the still-soft shaped material extruded from an extruder on its upper surface, and a rail that is installed parallel to the moving direction of the shaped material on the side of the slat conveyor. a moving table, a form vise that is installed on the slat conveyor and grips the form material on the slat by the operation of a cylinder, a connecting member that connects the moving table and the form vise, and a saw blade and a saw blade drive device. A cutting machine that cuts the stranded material, a cutting machine moving device that is installed on a moving table and moves the cutting machine in a direction perpendicular to the moving direction of the material, and one end of which is connected to the moving table and the other end of which is used to move the moving table. A moving platform consisting of a wire connected to a weight hanging down via a pulley installed on the side in the direction of movement of the shape material, which is far from the range, and moves the movable platform together with the shape material vice in which the shape material is gripped by the gravity of the weight. It consists of a moving device, and a return cylinder that returns the moving platform and slat conveyor, which were moved by the moving platform moving device, to the position before movement after the profile is cut by the cutting machine and the grip of the profile by the profile vise is released. The present invention provides a traveling cutting machine for extruded profile materials, which is characterized by the following.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a traveling cutting machine for extruded profile materials according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a plan view of one embodiment of a traveling cutting machine for extruded profile materials according to the present invention, and FIGS. 2 to 4 are cross sections taken along lines A-A, B-B, and C-C in FIG. 1, respectively. FIG. 5 is a schematic diagram showing the relationship between another embodiment of the traveling cutter for extruded profile materials according to the present invention and devices before and after the device.

In the drawing, 1 is a slat conveyor that supports the still-soft shaped material M extruded from the extruder P on the upper surface of slats 1a provided at intervals; A rail 3 is installed parallel to the moving direction of M, and a moving platform 3 is moved along the rail 2. 4 is the fourth
A lifting cylinder 4a and a cylinder 4 for opening and closing the gripping part, each indicated by a broken line in the figure, raise and lower the entire gripping part in order to transfer the mold material M in the next process.
This is a shape material vise that grips the shape material of the slat 1a by the operation of b. Reference numeral 6 includes a saw blade 6a and a saw blade drive device 6b, and a cutting machine for cutting the form material M gripped by the form material vise 4. Reference numeral 7 is installed on the movable table 3 and controls the cutting machine 6 in the moving direction of the form material M. This is a cutting machine moving device that moves in a right angle direction, and various structures can be adopted, such as a structure in which the saw blade 6a moves vertically or in an arc shape, in addition to a structure in which the saw blade 6a moves horizontally as in the illustrated embodiment. Reference numeral 8 is a weight consisting of a wire 8c which has one end connected to the moving table 3 and the other end connected to a weight 8b hanging down via a pulley 8a installed on the side in the moving direction of the profile M away from the moving range of the moving table 3. 9 is a movable table moving device that moves a movable table that grips and holds a shape material by the gravity of the shape material M, and 9 moves the movable table after the shape material M is cut by the cutting machine 6 and the grip of the shape material M by the shape material vise 4 is released. This is a return cylinder that returns the movable table 3 and slat conveyor 1 that have been moved by the device 8 to the position before movement, and the mechanism for returning the movable table 3 and slat conveyor 1 by this return cylinder 9 is the first In addition to the one in which a wire is connected to the return cylinder 9 via a pulley as shown in FIG. 2 and FIG. 2, it is also possible to use one in which the return cylinder 9 directly pushes back the movable platform as shown in FIG. 10 and 11 are rail 2
These shock absorbers are fixed near both ends of the carriage 3 and soften the shock when stopping the moving carriage 3.

The operation of the traveling cutting machine for extruded profiles according to the present invention having the above configuration will be explained below.

The traveling cutting machine for extruded profile materials according to the present invention is normally in the state shown in FIG. Move and come. In this state, the shape material M is extruded to a predetermined length by the extruder P, and when the position where the shape material M is to be cut reaches the saw blade 6a, the lifting cylinder 4a and the opening/closing cylinder 4b of the shape material vise 4 are activated. When the mold material M is held at the same height as the upper surface of the slat 1a and the pressure supplied to the return cylinder 9 is released, the movable table 3 is pulled by the gravity of the weight 8b via the wire 8c, so that the movable table 3 and connecting material 5
The shape vise 4 connected to the shape material vice 4 pulls the shape material M, but since the shape material M is connected to the extruder, unless the shape material M is cut or plastically deformed, the extruder P
It starts moving in synchronization with the speed of the mold material M being pushed out. When the movable table 3 starts to move in this way, the saw blade driving device 6b drives the saw blade 6a, and the cutting machine moving device 7 moves the cutting machine 6 in the direction of the profile M to cut the profile M. When the cutting of the shape material M is completed and the cutting machine 6 returns to its original position by the cutting machine moving device 7, the grip by the shape material vise 4 is released, and pressure is again supplied to the return cylinder 9 to return the entire device to its original position. All you have to do is return it to its original position and prepare for the next cut.

As described in detail above, in the traveling cutting machine for extruded profile materials according to the present invention, the movement of the cutter 6 in the moving direction of the profile material M is performed in a state in which a constant tension due to the gravity of the weight 8b is always directed in the moving direction of the profile material M. Since it is tensioned by the extruder P, it can be completely synchronized with the speed of the mold material M extruded from the extruder P, and unlike conventional equipment, a tatsuchi roll is installed to detect the moving speed of the mold material, and cutting is performed according to the detected speed. There is no need to provide a device to adjust the speed at which the machine 6 is moved along with the moving table 3 in the direction of movement of the mold material M, and the mechanism is simple, resulting in fewer breakdowns and low running costs. Furthermore, since the shape material vise 4 grips the shape material M under almost the same conditions as the conventional linear motor type puller, there are various advantages such as there is no need to worry about stop marks and lowering the product yield. , its industrial value is extremely large.

[Brief explanation of drawings]

FIG. 1 is a plan view of one embodiment of a traveling cutting machine for extruded profile materials according to the present invention, and FIGS. 2 to 4 are cross sections taken along lines A-A, B-B, and C-C in FIG. 1, respectively. FIG. 5 is a schematic diagram showing the relationship between another embodiment of the traveling cutter for extruded profile materials according to the present invention and devices before and after the device. 1... Slut conveyor, 1a... Slut,
2...Rail, 3...Moving table, 4...Shape material vise, 4a...Cylinder for lifting/lowering, 4b...Cylinder for opening/closing, 5...Connecting material, 6...Cutting machine, 6a
... Saw blade, 6b ... Saw blade drive device, 7 ... Cutting machine moving device, 8 ... Moving table moving device, 8a ... Pulley, 8b ... Weight, 8c ... Wire, 9 ... Return cylinder, 10, 11...Shock absorber, P...Extruder, M...Mold material.

Claims (1)

[Claims] 1. A slat conveyor that supports the still soft shapes extruded from the extruder on its upper surface, and a moving platform that moves along a rail installed parallel to the direction of movement of the shapes on the side of the slat conveyor. A forming material vise that is installed on the slat conveyor and grips the forming material on the slat by the operation of a cylinder, a connecting member that connects the moving table and the forming material vise, and a saw blade and a saw blade drive device to remove the formed material from the slat conveyor. A cutting machine that cuts, a cutting machine moving device that is installed on a moving table and that moves the cutting machine in a direction perpendicular to the moving direction of the profile, and a cutting machine that has one end on the moving table and the other end away from the moving range of the moving table. a moving table moving device which is made of a wire connected to a weight hanging down via a pulley installed on the side in the direction of movement of the form material, and moves the moving table together with the form material vise in which the form material is gripped by the gravity of the weight; It is characterized by comprising a return cylinder that returns the movable table and the slat conveyor, which were moved by the movable table moving device, to the position before movement after the mold material is cut by the cutting machine and the grip of the mold material by the mold vise is released. A traveling cutting machine for extruded materials.