JPS591115A - Moving cutoff machine for extruded material - Google Patents

Abstract

PURPOSE:To completely synchronize the displacement of a moving cutoff machine with the speed of an extruded material pushed out of an extruder, by always applying constant tension based on the gravity of a weight, in the direction of the movement of the extruded material. CONSTITUTION:A moving holder 3 is pulled by the gravity of a weight 8b through a wire 8c. An extruded material M is pulled by a material vise 4 connected to the moving holder 3 through a coupler. Since the extruded material M is connected to an extruder P, the holder 3 begins to move synchronously with the speed of the material M pushed out of the extruder P, unless the material is cut off or plastically deformed. When the holder 3 has begun to move, a saw 6a is actuated by a saw driver and a cutoff machine 6 is moved toward the extruded material M by a cutoff machine driver to cut off the material.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a traveling cutting machine using an extrusion die, which cuts a molded material while moving at the same speed as the molded material extruded from an extruder.

The moving speed of the 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 if the extrusion ratio is the same, there are various factors such as dimensional errors in bearing length, aluminum flow rate, and billet temperature. It changes due to fluctuations in extrusion conditions such as these and variations in the quality of the billet material, so simply calculating from the product of the extrusion ratio and ram speed will result in poor accuracy.

Therefore, in conventional traveling cutting machines, the method of detecting the speed of the shape material is to install a touch roll on the initial table, bring it into contact with the shape material passing over it, rotate the touch roll, and detect the rotation speed. controlled the speed of.

However, this method has the disadvantage that if the material is small or if the material is wavy or twisted due to unstable extrusion, the tutirol will not be able to detect the speed of the material, and as a result, the traveling cutting machine will not be able to synchronize with the speed of the material. It had

In order to solve the above-mentioned drawbacks, the present inventor 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 extruded form. Taking a cue from the fact that it has been empirically shown that We discovered that it is possible to tune into
This completes the present invention.

In other words, the present invention provides a slat conveyor that supports the shape material extruded from an extruder on its upper surface, a moving stage that is moved along a rail installed on the side of the slat conveyor in parallel to the direction of movement of the shape material, and a slat conveyor. A forming vise that is attached to the cylinder and grips the forming material on the slat by the operation of a cylinder, a connecting phase that connects the movable table and the forming vise, and a cutting device that cuts the formed forming material using a saw blade and a saw blade drive device. a cutting machine moving device that is installed on a moving table and moves the cutting machine in a direction perpendicular to the direction of movement of the profile, and 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 profile; A moving table moving device, which is composed of a wire connected to a weight hanging down via a pulley installed on the moving direction side, moves the moving table together with the form material vise in which the form material is gripped by the gravity of the weight, and the form material. The slat conveyor is characterized by a return cylinder that returns the movable table and the slat conveyor, which have been moved by the movable table moving device, to the positions before movement after the mold material has been cut by the cutting machine and the grip of the mold material by the mold vise has been released. The present invention provides a traveling cutting machine for extruded profile materials.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a traveling cutting machine for extruded profiles 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 the extrusion-type traveling cutting machine 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 another embodiment of the extrusion type traveling cutting machine according to the present invention and the relationship between the devices before and after the device.

In the drawing, 1 is a slat conveyor that supports the molds M to be extruded by the extruder P on the upper surface of the slats la, which are provided at intervals, and 2 is a slat conveyor on the side of the slat conveyor 1 that corresponds to the moving direction of the mold M. A rail 3 installed in parallel is a moving platform that is moved along the rail 2. 4 is a slat l by the operation of the lifting cylinder 4a and the opening/closing cylinder 4b of the gripping part, which raise and lower the entire gripping part shown by broken lines in FIG.
This is a shape material vise for gripping the shape material on the body, and this shape material vice 4 is attached to the slat conveyor 1 and is fixed to the moving table 3 by a connecting phase 5. 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 held by the form material vise 4; It is a cutting machine moving device that moves in a direction perpendicular to the moving direction, and various structures can be adopted, such as a structure in which the saw blade 6a moves vertically or in an arc shape, other than one in which the saw blade 6a moves horizontally as in the illustrated embodiment.

8 is made up of a wire 8c which has one end connected to the movable 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 at a distance υ from the moving range of the movable table 3. 9 is a moving table moving device that moves a moving table that grips a shaped material by the gravity of a weight, and 9 is a moving table moving device that moves a moving table that grips a shaped material, and when the shaped material M is cut by the cutting machine 6, the gripping of the shaped material M by the shaped material vise 4 is released. This is a return cylinder that returns the moving table 3 and the slat conveyor 1, which have been moved by the moving table moving device 8, to the position before movement, and the mechanism that returns the moving table 3 and the slat conveyor 1 by this return cylinder 9. As for 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.

Reference numerals 10 and 11 are York absorbers fixed near both ends of the rail 2 to soften the shock when stopping the moving platform 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 using an extrusion die according to the present invention is normally in the state shown in FIG. . In this state, the shape material M is extruded to a certain length by the extruder P, and the position where the shape material M is to be cut is at the saw blade 6.
When you reach point a, lift cylinder 4a of form material vise 4.
The opening/closing cylinder 4b is operated to grip the mold M at the same height as the top surface of the slant 1a, and the return cylinder 9
When the pressure supplied to is released, the movable table 3 is pulled by the gravity of the weight 8b via the wire 8c, so the form vice 4 connected to the movable table 3 and the connecting member 5 pulls the form M. Since the mold material M is connected to the extruder, it starts moving in synchronization with the speed of the mold material M extruded from the extruder P unless the mold material M undergoes plastic deformation. In this way, when the movable table 3 starts moving at K, the saw blade drive device 6
b drives the saw blade 6a'' and the cutting machine moving device 7.
The cutting machine 6 is moved in the direction of the shape material M to cut the shape material M. When cutting of the profile M is completed and the cutting machine 6 is returned to its original position by the cutting machine moving device 7, the grip by the profile vice 4 is released and pressure is again supplied to the return cylinder 9 to return the entire machine to its original position. All you have to do is restore it to the previous state and prepare for the next run l, 'IJ disconnection.

As described in detail above, in the extrusion mold-using traveling cutting machine according to the present invention, the movement of the cutting machine 6 in the movement direction of the mold material M is such that the constant tension due to the gravity of the weight 8b is always directed in the movement direction of the mold +J'M. Since it is pulled in a state where it is pulled, it can be completely synchronized with the speed of the mold material M extruded from the extruder P. Unlike conventional devices, a touch roll is provided to detect the moving speed of the mold material, and the detected speed is There is no need to provide a device to adjust the speed at which the cutting 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. In addition, since the shape material vise 4 grips the shape material M under almost the same conditions as the conventional linear motor one-type puller, there is no need to worry about stop marks being generated and the product yield being reduced. It has various advantages and its industrial value is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a plan view of one embodiment of a traveling cutter for extruded material 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 extrusion type traveling cutting machine according to the present invention and the devices before and after the device. 1.Slat conveyor 1a..Slat 2e.Rail 3..Moving table 4..Shape material vise 4a..Cylinder for lifting and lowering 4b..Cylinder for opening and closing 5..Connection phase 6..Cutting machine 6a..Saw blade 6b Saw blade, drive device 7, cutting machine moving device 8, moving table moving device 8a, two pulleys 8b, weight 8c, wire 9, return cylinder 10, 11, shock absorber P, extruder M ...Mold material Fig. 3 Fig. 4 Fig. 5

Claims (1)

[Claims] 1. A slat conveyor that supports the shapes extruded by the extruder on its upper surface, a moving platform that is moved along a rail installed parallel to the direction of movement of the shapes on the side of the slat conveyor, and a device attached to the slat conveyor. a shape material vise that grips the shape material on the slat by the operation of a cylinder, a connecting member that connects the movable table and the shape material vice, and a cutting machine that cuts the formed shape material using a saw blade and a saw blade drive device;
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 profile material, and a cutting machine moving device that is installed on a moving platform and moves the cutting machine in a direction perpendicular to the moving direction of the profile material; a moving table moving device which is made of a wire connected to a weight hanging down via a pulley installed in the machine, 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 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 that uses an extrusion type.