JPH01306015A - Stretcher for extruded shape material - Google Patents

Abstract

PURPOSE:To improve an operating rate by providing a cooling table travelling in the orthogonal direction to a run-out table and clamping device equipped with a transfer loading device and disposing plural pairs of movable and controllable tail stocks. CONSTITUTION:The run-out table 3 is provided on the outlet side of an extrusion press 1 for the shape and on its side, the clamp device 7 is disposed. Further, the cooling table 4 consisting of plural conveyers 5 is provided orthogonal to the table 3 between the clamp device 7, and the transfer loading device 6 is added. One pair of head stocks 8 is provided on the clamp device 7 and movable and controllable plural tail stocks 30 are set up. When the dimension of the shape 2 is to be changed, the tail stock 30A corresponding to its length is selected and its position is controlled to correct for the cooling and tension of the shape 2. The preparatory time attending on the dimension changing is reduced to improve the operating rate.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a stretcher for extruded mold materials that grips both ends of a mold material extruded by an extrusion press and applies tensile force using contraction force caused by cooling to correct bends and twists. It is related to.

[Conventional technology]

Conventionally, a shaped material such as aluminum extruded by an extrusion press is extruded onto a runout table extending in the extrusion direction, and is moved in t rows to a clamping device by a cooling table and a transfer device that move in a direction perpendicular to the extrusion direction. In the clamping device, both ends are gripped by the gripping member of the headstock and the gripping part of the tailstock, and each time it contracts due to cooling by a cooling fan or the like, a tensile force is applied to correct the bending or twisting.

[Problem to be solved by the invention]

In the straightening work of the extruded mold material using a ring stretcher, the length of the extruded mold material is often changed, and with conventional equipment, it takes a long time and a lot of effort to prepare each time the change is made. The problem is that we cannot expect to achieve a high operating rate and a reduction in labor.

[Means to solve the problem]

In order to solve these problems, the present invention provides a clamping device that is provided with a cooling table and a transfer device between the runout table and a set of heads that grips one end of the shape material. stock and
It is composed of a gripping member that grips the other end of the shape material and can freely move in the length direction of the shape material, and a plurality of sets of tail stocks arranged in parallel in the length direction of the shape material.

[For production]

The shape material extruded by the extrusion press is extruded onto a runout table extending in the extrusion direction, and is transferred to a clamping device by a cooling table that moves in a direction perpendicular to the extrusion direction and a transfer device. In the clamp device, both ends are gripped by a gripping member of the headstock and a gripping member of the tailstock,
When it contracts by cooling with a cooling fan or the like, a tensile force is applied and bends and twists are corrected.

If the length of the profile is changed, the gripping member of the headstock should grip one end of the profile, then select the tailstock with the gripping member closest to the other end of the profile and move that gripping member. , the straightening work is performed with the other end of the mold material being gripped and the gripping member being stopped at that position.

[Example] Fig. 1 to Fig. 7 show an example of the stretch tensile for extruded material according to the present invention, and Fig. 1 is a schematic plan view of the entire structure;
Fig. 2 is a front view of the headstock, Fig. 3 is a front view showing 1m of the plurality of tail stocks, Fig. 4 is a plan view, Fig. 5 is a 3rd AA sectional view, and Fig. 6 is a front view of the headstock. FIG. 3 is a BB sectional view, and FIG. 7 is a CC sectional view of FIG. 3. In the figure, behind an extrusion press 1 that extrudes a shape material such as aluminum, a runout table 3 that supports the shape material 2 extruded by the cooperation of tension by a puller (not shown) is installed extending in the extrusion direction of the shape material 2. On the side of the runout table 3, a clamp device 7, which will be described later, is extended in parallel with the runout table 3. 4 is a cooling table consisting of a plurality of conveyors 5 which are perpendicular to the run-out table 3 and stretched in parallel at a predetermined interval between the run-out table 3 and the clamp device 7, and which run intermittently in the direction of the arrow in the figure; Runout table 3 divided into directions
The conveyor 5 is stretched so as to fit into the gap between the conveyors 5 and 5, and each conveyor 5 is provided with a transfer device 6 located directly below its upper running section. The transfer device 6 is driven to move up and down, and is configured to move the profile 2 on the runout table 3 to above the clamp device 7 in relation to the conveyor 5. That is, when the profile 2 is on the run-out table 3, the transfer device 6 rises and raises the conveyor 5, which is slightly lower than the run-out table 3, so that the profile 2 is transferred from the run-out table 3 onto the conveyor 5. When the conveyor 5 runs in this state, the mold material 2 moves directly above the clamp device 7.

A head stock 8, the details of which are shown in FIG. The headstock 8 includes a frame 9 formed as a framework and fixed to the floor surface, and on this frame 9 is a chuck main body 1o formed in a U-shape when viewed from the front.
The wheels 11 are movably engaged with the rails 12 of the nine frames so as to be movable in the longitudinal direction of the profile 2,
A piston rod 15 of a hydraulic cylinder 14 supported on the frame 9 via a bracket 13 is pivotally attached to the rear end. Above the front heavy wheel 11, a chuck lower piece 16 as a gripping member is fixed to the main body 10 side with its upper surface positioned slightly higher than the upper surface of the conveyor 5 at its upper limit. Above the lower piece 16, a chuck upper piece 17 as a gripping member is fixed to a piston rod 19 of an air cylinder 18 supported by the main body 10, and when the piston rod 19 is moved up and down by air pressure, the chuck is removed. The lower piece I7 is configured to move up and down. Reference numeral 20 denotes a retracting conveyor which is formed to have the same configuration as the conveyor 5 and is suspended near the head stock 8 and has a higher lifting limit than the conveyor 5, and is driven separately from the conveyor 5. When the pull-in conveyor 20 stops at the top, the transfer device 21 provided below moves up and lifts one end of the profile 2. After that, the main body 10 moves forward to the ti-line position and the chuck upper piece 17 lowers. At the rear of the headstock 8 configured in one or more ways, one end of the shape material 2 is gripped by upper and lower chuck pieces 17.16, there is a shape material 2 with one end gripped by this.
A plurality of sets of tail stocks 30 that grip the other end are attached to the shape material 2
are arranged in parallel in the extending direction of the tail stock 30, and 1 & Il of the tail stock 30 are selected and used according to the length of the profile 2. Therefore, the structure of the tail stock 30 will be explained based on FIGS. 3 to 6. A frame 31 formed into an oblong rectangular frame is placed and fixed in the pit dug below the floor surface, and the rear end of a pair of rails 32 supported at the bottom of the frame 31 and the rail 32 An air cylinder 34 is horizontally supported on a support plate 33 fixed to the central part of the support plate 33, and a pair of brackets 36 are pivotally connected to the working ends of a piston rod 35 that moves back and forth using the air pressure. A wheel shaft 37 is pivotally supported.

A pair of connecting plates 38 extending rearward along the rails 32 are fixed to the wheel axle 37, and a wheel axle 39 supported at the tip thereof and the wheel axle 37 are connected to the rails 38 on both sides.
Wheels 40.41 are rotatably engaged with the brackets 36.2 and 40.41 are rotatably fitted to each other, and the piston rods 35 move forward and backward using air pressure to prevent the wheels 40.41 from rolling. The connecting plate 38 and the like are configured to move forward and backward in unison.

On the other hand, the rail 42, which is the upper member of the frame 3I, has
An outer frame 4 formed into a box-like frame that opens upward using shaped steel.
Four wheels (not shown) on the third side are removably fitted, thereby forming the outer frame 43 so that it can move forward and backward in the length direction of the profile. And both wheel axles 37.3
Sprocket 1-44 rotatably fitted in the center of 9
．． A chain 46 is stretched over the chain 45, and one end and the other end of the chain 4 (j are connected to each other as shown in FIG.
It is fixed to the support plate 33 and a bracket 47 hanging from the outer frame 43, respectively. By doing this, when the piston rod 35 moves forward by, for example, 50c+a from the neutral position shown in FIG. 3, the outer frame 43 moves forward twice by 1 m,
50 (configured so that it moves back 1 m when it moves backward one time. In the figure, a chain line 43A indicates the forward limit position of the front end of the outer frame 43, and a chain line 43B indicates the backward limit position of the rear end of the outer frame 43.

Further, 48 is an air cylinder type braking device that fixes the outer frame 43 at a moving position.

A vertical air cylinder 49 is fixed at the center of the bottom plate 43a of the outer frame 43, and an inner frame formed in the shape of a rectangular box opening downward is attached to the working end of the piston rod 50. 51 bottom plate is fixed. A support frame 52 is integrally formed above the inner frame 51, and the inner frame 51 and the support frame 52 are configured to move up and down as the piston rod 5o moves back and forth. The rollers 53 on the inner frame 51 side are engaged with the vertical rails 43b of the outer frame 43 so that the rollers 53 are placed indoors. At the upper end of the support frame 52,
A pair of chuck frames 54 formed in a U-shape and an inverted U-shape.
．． 55 is rotatably supported by pivots 56 and 57, and the free end of a lever 58 fixed to one of the pivots 57 is supported on the inner frame 51 side via a bracket 59. A piston rod 61 of an air cylinder 60 is pivotally mounted.

Gears (not shown) that mesh with each other are attached to the pivot shaft 56 and the pivot shaft 57, and the piston rod 6
By moving back 1, both chunk frames 54.5
5 is 90' to the position shown by chain lines 54A and 55A in FIG.
It is configured to rotate and open. Chain lines 54B, 55
B shows a state in which the stone rod 50 is lowered by retreating after being opened. Reference numeral 62 denotes a chuck L piece as a gripping member which is divided and attached to the chuck frames 54 and 55. Further, an air cylinder 63 is fixed inside the outer frame 43, and a chuck lower piece 66 as a gripping member is fixed to the piston working end 1640 via a bracket 65. are engaged in the closed chuck frame 54,55. In addition, as shown in FIG. 4, the chunk lower piece 6G is attached to the guide shaft 6 on the outer frame 43 side.
The lower movement is guided by 6a. By moving the piston rod 64 forward in the illustrated state, the chuck lower piece 66 moves up by L, and the upper and lower chuck pieces 62 and 66 grip the other end of the mold material 2. Cooling fans 67 are supported on both sides of the outer frame 43 via brackets 68 and cool the profile 2.

The operation of the extruded material stretcher configured as described above will be explained. A profile 2 extruded from an extrusion press 1 is supported on a runout table 3 by extrusion and tension by a puller. At this time, the transfer device 6 raises the conveyor 5 of the cooling table 4, so the profile 2 on the run-out table 3 is transferred onto the conveyor 5. In this state, conveyor 5
When the shape material 2 is moved, the conveyor 5 is stopped when it is directly above the clamping device 7. When transferring the profile 2, the chuck frames 54 and 55 of all the tail stocks 30 are open and have been lowered to the positions indicated by chain lines 54B and 55B in FIG. 6, so there is no problem in moving the profile 2. Since the transfer device 21 for the pull-in conveyor 20 rises at the same time as the profile 2 stops, the pull-in conveyor 20 rises and lifts one end of the profile 2. At the same time, the piston rod 15 of the hydraulic cylinder 14 of the headstock 8 advances, the main body 10 moves to the chain line position, the piston rod 19 of the air cylinder 18 advances, the chuck upper piece 17 descends, and the transfer device 21 and the pull-in conveyor 20 are lowered, so that the profile 2 is gripped by the upper and lower chuck pieces 17, 16. At the same time, a tail stock 30 (in this embodiment, the sixth tail stock 30A from the front) corresponding to the length of the profile 2 is selected. Note that the outer frame 43 of each table stock 30 is located at the center of the tail stock 30, as shown in FIG. Therefore, the fixation by the braking device 48 is released and the air cylinder 34 of the tail stock 30 is released.
The piston rod 35 is advanced, the outer frame 43 is moved along the rail 42, and the upper and lower chuck pieces 62 and 66 are moved.
correspond to the other end of the mold material 2. In this case, one end and the other end of the chain 46 stretched around the sprockets 44 and 45 are fixed to the frame 31 side and the outer frame 43 side, respectively, so that the outer frame 43 is controlled by the stroke of the piston rod 35. Move twice as far. Brake device 4 after moving
8 to fix the outer frame 43. Then, the piston rod 50 of the air cylinder 49 of the tail stock 30 and the piston rod 64 of the air cylinder 63 move forward to the illustrated positions, and the chuck frames 54, 55 remain open. A chain line 54 is shown in FIG. 6 along the rail 43b and guide shaft 66a (see FIG. 4) with the inner frame 51 and lower chuck piece 66.
A, rise to the position shown at 55A. Next, the piston rod 61 of the air cylinder 60 moves forward to the illustrated position,
The chuck frames 54A and 55A are rotated via the lever 58 and the gears on the pivots 56 and 57, and are closed as shown by solid lines 54□55 in the figure. Then, the piston rod 64 of the air cylinder 63 moves further forward, and the chuck lower piece 66 rises to grip the other end of the profile 2 between it and the chuck upper piece 62. In this way, in this device, the configuration is such that the installation of a plurality of tail stocks is selected according to the length of the shape material 2, so that even if the length of the shape material 2 is changed, the tail stock 7
There is no need to move the shape material 2, and although the operation time from extrusion to gripping of the shape material 2 described above is long in description, it actually ends in a very short time.

The shape material 2, which is held at both ends by the chuck pieces of the head stock 8 and the tail stock 30, is cooled by the cooling fan 67 and contracted, thereby applying tensile force, so that bends and twists are corrected. Ru. In addition, in this device, since an electromagnetic proportional pressure regulating valve is provided in the hydraulic circuit of the hydraulic cylinder 14 of the headstock 8,
The tensile force becomes gradually stronger over time, corresponding to changes in the tensile force due to shrinkage of the shape material. Further, since a relief valve is attached to the hydraulic cylinder 14 to regulate the maximum tensile force, the machine will not be damaged. By the way, the expansion coefficient of aluminum is that of iron! This is twice as large, and a 50 m long material will shrink by 100 m when cooled to 100°C. In addition,
Although this embodiment shows an example in which one row of clamp devices 7 is provided, a plurality of rows may be provided so that the clamp devices 7 are pulled in stages.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a strainer for extruded material is provided with a clamping device connected to a runout table by a cooling table and a transfer device, and the clamping device is connected to one end of the material. It is composed of a head stock of 1 & Il that grips the shape material, and a plurality of tail stocks arranged in parallel in the length direction of the shape material, each of which has a gripping member that grips the other end of the shape material and can be moved and adjusted in the width direction of the shape material. Therefore, if the length of the extruded material is changed, the tail stock corresponding to the length must be
Since the length of the shape material can be adjusted by slightly moving and adjusting only the chunk part, the preparation time is shortened, the operating rate of the equipment is improved, and the adjustment is easy. Labor is reduced.

Furthermore, since the extruded material can be gripped and corrected between the head stock and tail stock before it cools down,
You can get good quality products.

[Brief explanation of the drawing]

1 to 7 show embodiments of the sliders 1 to 3 for extruded mold materials according to the present invention, FIG. 1 is an overview of the entire structure, FIG. The figure is a front view of the tailstock, Figure 4 is a unilateral view, Figure 5 is a cross-sectional view along line AA in Figure 3, Figure 6 is a cross-sectional view at 13B in Figure 3, and Figure 7 is a cross-sectional view of Figure 3. It is a CC sectional view of. l...Extrusion press, 2...Shape material, 3...Runout table, 4...Cooling table, 5
... Conveyor, 6 ... Transfer device, 7 ... Clamp device, 8 ... Head stock, 16 ...
Chunk lower piece, 17... Chuck L piece, 30, 30
Δ・・・Tail stock, 32・・・Rail, 34
...Air cylinder, 40.41 ...Wheel, 43
... Outer frame, 54.55 ... Chuck frame, 62.
...Chunk top piece, 66...Chuck F piece, 67
····cooling fan. Patent applicant: Ube Industries, Ltd.

Claims (1)

[Claims] At the rear of the extrusion press, a clamping device is provided that includes a cooling table and a transfer device that are parallel to a runout table that extends in the direction of extrusion of the profile material and that moves between the runout table in a direction orthogonal thereto; Consisting of one set of headstocks that grip one end of the shape material, and multiple sets of tail stocks that grip the other end of the shape material and are arranged in parallel in the length direction of the shape material and have gripping members that can be moved and adjusted in the length direction of the shape material. A stretcher for extruded materials characterized by: