JPH0866721A - Drawing device for extruded material - Google Patents

Abstract

PURPOSE: To facilitate maintenance, to prevent generation of noise and to improve working environment by self-propelling a carriage along a supporting frame by means of a control motor provided on the carriage. CONSTITUTION: A base stock is extruded from an extrusion die by a prescribed quantity, and the tip end is inserted into the rectangular hollow part 21 of a carriage 4. The tip end of the base stock is pressurized and held with a pressurizing body and a chuck wing 10 that are provided on the carriage 4. With an AC servo motor 2 driven, a driving part 1 moves on a guide rail 15, moving the carriage 4 on a supporting frame 16 through a connecting body 5. The carriage 4 moves with the base stock clamped, and the base stock is formed into a drawing extruding material. As a result, noise is eliminated since a chain is not used as a moving means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tensioning device for extruded material, and more specifically, a state in which a material for extruding such as aluminum and aluminum alloy, which is inserted into a die hole and extruded at a predetermined speed, is under tension. The present invention relates to an extruded material tensioning device used for forming a rod-shaped extruded material by pulling the material to the outside.

[0002]

2. Description of the Related Art Conventionally, as a pulling device 31 for forming an extruded material made of aluminum using a die, as shown in FIG. 7, it is provided in a vertical direction so as to sandwich an aluminum material inserted in a hole of a die 32. A pair of sandwiching bodies 33, 33, a carriage 34 provided with the sandwiching bodies 33, 33, a support frame 35 for movably supporting the carriage 34, and both ends of the support frame 35. It is composed of a chain 37 (or a rope) wound around gears 36, 36, and a drive source 38 for driving the chain 37.

That is, when forming an extruded material made of aluminum using the above-mentioned conventional tensioning device 31, first, the die 32 is used.
The one side of the aluminum material that has been inserted into and is extruded at a predetermined speed is clamped by the clamps 33, 33 in a tensioned state, and then the drive source 38 is operated to clamp the chain 37 by the clamps 33, 33. By driving and pulling the carriage 34 along the support frame 35 by a predetermined distance, an aluminum rod-shaped extruded material is formed.

[0004]

However, in the case of the above-mentioned conventional apparatus for pulling the extruded material, since the carriage is moved by the chain or the like, for example, when the chain is cut by abrasion or the like, the carriage is supported by the frame. Along with runaway along the line, the severed chain exposes the worker to very dangerous conditions. Therefore, the conventional extruded material tension device has a problem that the safety of the operator cannot be secured unless a lot of time is required for maintenance of the chain and the like.

In addition, a separate drive source for driving the chain must be installed in the vicinity of the support frame, and a lot of space is required for the installation, which is not suitable for a small factory. It was

Further, in the movement by the chain, a large amount of noise is generated when the gear and the chain are meshed with each other and when the chain is rotated, which causes an operator's annoyance and lack of concentration, causing injury or the like. There was a major drawback in that

Therefore, the present invention has been invented in view of the above-mentioned conventional problems, and it is possible to ensure the safety of the operator, to allow the operator to work in a comfortable state, and to save the installation space. It is an object of the present invention to provide a tension device for an extruded material that is excellent in economy.

[0008]

[Means for Solving the Problems] That is, according to a first aspect of the present invention, there is provided a device for tensioning an extruded material for forming an extruded material by drawing a material for extrusion which is inserted into an extrusion hole of a die by a predetermined distance. A carriage for an extruded material comprising a support frame provided in a direction further away from the support and a carriage for extruding which is movable along the support frame and holds the material in a grasped state. 4 is provided with a control electric motor, and the carriage 4 is configured to be self-propelled along the support frame 16 by the control electric motor.

Further, as described in claim 2, the control electric motor is connected to the carriage 4 through a connecting frame body 5, and the connecting frame body 5 is provided in parallel with the support frame 16. It is configured to be driven to move along the guide frame 15.

Further, as described in claim 3, the control electric motor is an AC servomotor 2.

Further, as described in claim 4, a plurality of the carriages 4 are provided along the support frame 16 so as to pull out the material for extrusion in a long shape.

Further, as described in claim 5, the carriage 4 is provided with a power generation device.

Further, as described in claim 6, the carriages 4 are constructed so as to alternately move in opposite directions via at least two support frames 16.

[0014]

When the extruded material tensioning device according to the above-mentioned claim 1 is used, first, the extruding material inserted in the hole of the die is held by the carriage 4, and then the carriage 4 is extruded. The material inserted into the die is formed into a pull rod-like extruded material by pulling and moving along a support frame 16 provided in a direction away from the die corresponding to the speed at which the material for use is pushed out. At this time, a control electric motor is provided in the carriage 4, and the control electric motor is configured to be self-propelled along the support frame 16. Therefore, maintenance of the control electric motor is easy and safe. A pull rod-shaped extruded material can be formed.

Moreover, since the carriage 4 is self-propelled along the support frame 16, the carriage 4 can be pulled and moved smoothly without generating any noise when the carriage 4 is moved.

Further, since the carriage 4 is provided with the control electric motor, the tensioning device can be installed without taking a separate space for driving.

Further, as described in claim 2, a control electric motor is connected to the carriage 4 through a connecting frame body 5, and the connecting frame body 5 is provided in parallel with the support frame 16. By moving along the frame 15, the carriage 4 can be self-propelled along the support frame 16.

Further, as described in claim 3, by configuring the control electric motor with the AC servomotor 2, it has a speed-torque characteristic with respect to the movement (starting, stopping, etc.) of the carriage 4 and is stable. It can exhibit motion, excellent controllability and high responsiveness.

Further, as described in claim 4, by providing a plurality of carriages 4 along the support frame 16,
A long extruded material can be formed by sequentially delivering the material as it is grasped.

Further, by providing the power generator as described in claim 5, the extruded material can be formed safely by switching to the power generator quickly even in the case of a sudden power failure.

Further, as described in claim 6, it is possible to form the extruded material by pulling the material by alternately moving the carriages 4 in the opposite directions along at least two or more supporting frames 16. Becomes

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the extruded material tensioning device of the present invention will be described below with reference to the drawings.

1 to 3, reference numeral 1 denotes an upper body 1a provided with an AC servomotor 2 having a speed-torque drooping characteristic, excellent controllability, and a solid rotor, and the upper body 1a. AC servomotor 2 as a controlled electric motor
2 shows a drive unit including an inverted U-shaped lower body 1b provided with a plurality of pinions 3 ...

Reference numeral 4 denotes a carriage which is connected to a connecting frame body 5 having one end fixed to the drive unit 1. Both sides of the carriage 4 parallel to the traveling direction are connected to the piston lot 6a of the hydraulic cylinder 6. A crank 7 connected thereto, a substantially circular rotary plate 9a fixed after being inserted into a rotary shaft 8a provided with the crank 7, and a rotary plate meshed with the rotary plate 9a and fixed after being inserted into the rotary shaft 8b. A pair of chuck wings 10 and 10 for holding a material for extrusion are provided, one end side of which is fixed to the rotary plates 9a and 9b so as to be rotated in the vertical direction by 9b. 1
Reference numerals 1 and 11 denote plates for material placement for extrusion, which are attached to the other ends of the chuck wings 10, 10, and a plurality of plates 11 and 11 are provided on the surface of the plates 11 and 11 in a direction intersecting the material insertion direction. Groove is formed.

Reference numeral 12 is a pressing body which is provided below the front end of the carriage 4 and is formed in a substantially arcuate shape in plan view to press the inserted material. The pressing body 12 is a piston lot 13a of the hydraulic cylinder 13. It is configured to move the other end side in the vertical direction by moving the one end side connected to the above along the substantially V-shaped notch portion 14. Denoted at 12a are arcuate notches formed on the outer circumference of the arcuate portion of the pressing body 12.

Reference numeral 15 denotes the lower body for self-propelling the drive unit 1.
1B shows a guide rail having a substantially rectangular shape in cross section, which is provided with a rack inserted through 1b and engaged with the pinions 3 ...

Reference numeral 16 denotes a support frame on which the carriage 4 is placed and a plurality of rollers 17 are provided for traveling, and 18 is an extrusion die fixed to a support base 19 at the tip side of the support frame 16. Indicates.

The extruded material tensioning device 20 according to the present embodiment has the above-described structure, and a case of forming an aluminum rod-shaped extruded material using the tensioning device 20 will be described.

First, as shown in FIG. 4, an extrusion die 18 is used.
A predetermined amount of aluminum is extruded from the hole 18a formed in the cylinder, and then the hydraulic cylinder 6 is actuated to move the crank 7 connected to the piston lot 6a as shown in FIGS. The rotary shaft 8a is rotated to rotate the rotary shaft 8a.
By rotating the rotary plate 9a and the other rotary plate 9b attached to the chuck wings 10, 10, the chuck wings 10, 10 are rotated downward to form a substantially rectangular hollow portion 21, and then the aluminum tip is formed in the hollow portion 21. Insert the side.

Thereafter, as shown in FIGS. 6A and 6B, a pressing body provided below the leading end side of the carriage 4.
When the hydraulic cylinder 13 is operated, 12 is rotated while moving along a substantially V-shaped notch 14, and the aluminum is pressed from above. At this time, the notches 12a formed in the arc portion of the pressing body 12 and the chuck wing 1
The grooves 11a ... Of the plate body 11 attached to the front end side of 0, 10 can prevent the front end portion of aluminum from coming off.

Next, with the aluminum held by the chuck wings 10, 10 and the pressing body 12, the drive unit 1 is tensioned in accordance with the extrusion speed of the extruded material. After moving along the guide rail 15 to a predetermined distance (hereinafter referred to as holding movement), the aluminum extruded material pulled into a predetermined shape and diameter is separated, and then the return movement to the original position again (one cycle movement). . On this occasion,
Since the driving unit 1 has a speed-torque characteristic, it can perform stable operation, excellent controllability, and a high response type. The distance between the acceleration range at start-up and the deceleration range at start-up in one cycle from the carry-out movement to the return movement is shortened, the time is held in a short time, and the time for carry-out and return movement at the maximum speed. You can take a lot of obi.

Moreover, since the rotor of the AC servomotor 2 is rigid, it can be used without trouble even if it is used for a long time, and the maintenance of the AC servomotor 2 is simple, so maintenance is easy. Can be done.

Further, since the drive unit 1 moves while the pinion 3 is engaged with the rack of the guide rail 15, it is possible to accurately perform a sudden stop or the like in the event of an abnormality.

As described above, by using the AC servomotor 2, since the carriage 4 is self-propelled to form an extruded material of aluminum, the worker can always work in a safe state.

In the above embodiment, one AC servomotor 2 is used as a control electric motor, but the type and number of control electric motors of the present invention are not limited to this, and for example, DC Servo motor, pulse servo motor, hydraulic servo motor may be used, or other types of motors (step motor etc.) may be used. Furthermore, by providing two AC servo motors, one motor Even if a failure occurs, the other motors may be activated so that the pushing operation is not affected.
In short, it does not matter what kind of control electric motor is used as long as the carriage 4 can be self-propelled.

Further, in the above embodiment, only one carriage 4 was used, but the number of carriages 4 of the present invention is not limited to this. For example, a plurality of carriages may be provided on the support frame 16 at a predetermined interval. It is also possible to form a long extruded material by providing a table and sequentially grasping the material and delivering it to the next carriage 4.

Further, in the above embodiment, the extruded material is sequentially formed by reciprocating one carriage 4 along the one support frame 16, but the extruded material forming means of the present invention is not limited to this. Not, for example, up and down (or left and right)
Is provided with a pair of support frames 16 ...
The extruded material may be formed by moving the two carriages 4 and 4 in the opposite directions along each other. In short, if the extruded material can be formed by moving the carriage 4 along the support frame 16, the means for forming the extruded material does not matter.

In the above embodiment, the moving means of the driving unit 1 is driven. The pinion 3 is connected to the shaft and the rack provided on the guide rail 15. However, the moving means of the present invention is not limited to this. For example, a state in which wheels are engaged with the guide lane 15 is provided. May be configured to move.

[0039]

As described above, the apparatus for pulling extruded material according to claim 1 of the present invention is provided with a control electric motor in the carriage, and the carriage is self-propelled along the support frame, so that the conventional apparatus is provided. Moreover, compared with the case where the carriage is driven by a chain or the like, there is an effect that the worker can work safely and the work efficiency can be improved without requiring much time for maintenance.

Moreover, the carriage can be moved a predetermined distance without generating noise when the moving gear meshes with the chain and when the chain rotates, such as movement by the chain, and therefore the operator is always comfortable. There is an advantage that you can work in the state.

Further, by providing a control electric motor in the carriage, the chain can be installed without taking up space for installing the drive source, as compared with the case where the chain is rotated by the drive source as in the conventional case. The inside can be used effectively.

Further, as described in claim 2, the control electric motor is connected to the carriage through the connecting frame, and the connecting frame is driven along the guide frame provided in parallel with the support frame. By being configured to move, there is an advantage that the carriage can be self-propelled smoothly along the support frame with a simple structure and a small number of parts.

Further, as described in claim 3, by configuring the control electric motor with an AC servo motor, a stable operation is obtained because it has a speed-torque characteristic with respect to the movement (start, stop, etc.) of the carriage. There are advantages that excellent controllability and high response type can be exhibited, and work efficiency can be improved.

In addition, the AC servomotor has the advantages that the rotor is formed firmly and the number of failures is small, and the maintenance is simple, so that the maintenance does not take time and is economical.

Further, as described in claim 4, since a plurality of carriages are provided along the support frame and the material can be sequentially delivered while gripping the material, a long extruded material can be formed with a simple structure. There is an advantage that can be done.

Further, as described in claim 5, by connecting the power generation device to the carriage, the carriage does not stop and the extruded material is not cut during the sudden power failure.
Since the extruded material can be continuously formed, there is an advantage that the safety of work can be further enhanced.

Further, as described in claim 6, since the carriage is configured to move alternately through at least two or more supporting frames, the carriage is alternately operated to continuously extrude the extruded material. It has the advantage that it can be formed.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional front view showing an embodiment of an extruded material tensioning device of the present invention.

2 is a partial cross-sectional side view showing the tensioning device of FIG. 1. FIG.

FIG. 3 is a plan view showing the tensioning device of FIG.

FIG. 4 is a cross-sectional view showing how aluminum is pulled through a die hole.

5 (a) and 5 (b) are schematic front views showing a rotating state of the chuck wings.

6A and 6B are schematic side views showing the rotating state of the pressing body.

FIG. 7 is a side view showing a conventional example.

[Explanation of symbols]

 2 ... Control motor 4 ... Carriage 5 ... Connection frame 15 ... Guide frame 16 ... Support frame

Claims (6)

[Claims] 1. A support frame provided in a direction away from the die to form a rod-shaped extruded material by pulling a material for extrusion inserted through an extrusion hole of the die by a predetermined distance, and the support frame. In the tensioning device for the extruded material, which is movable along the carriage and holds the raw material in a grasped state, the carriage (4) is provided with a control electric motor, and the carriage (4) is A device for tensioning an extruded material, which is configured to be self-propelled along the support frame (16) by the control electric motor. 2. The control electric motor is connected to the carriage (4) through a connecting frame (5), and the connecting frame is also provided.
The device (5) is configured to move along a guide frame (15) provided in parallel with the support frame (16).
A tensile device for the extruded material described. 3. The extruded material tensioning device according to claim 1, wherein the control electric motor is an AC servomotor (2). 4. The extruded material according to claim 1, wherein a plurality of said carriages (4) are provided along a support frame (16) for pulling a material for extrusion in a long shape. Tension device. 5. The extruded material tensioning device according to claim 1, wherein the carriage (4) is provided with a power generator. 6. The carriage (4) ... At least 2
The extruded material tensioning device according to any one of claims 1 to 5, which is configured to alternately move in opposite directions via the above-mentioned supporting frames (16).