JPH0761496B2 - Extruder profile puller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a profile drawing device for drawing a profile extruded from an extruder (extrusion press device). More specifically, the present invention relates to a profile drawing device of an extruder in which a puller is reciprocated above a runout table.

[Prior Art] The following device has been proposed as a puller for a conventional profile drawing device.

That is, (1) two sets of traveling rails are arranged in parallel to the runout table, and the left and right sides are arranged at appropriate intervals between the sets.
Plural pullers can move between rails at both ends of each set of rails.

Further, (2) a pair of rails are provided on the left and right by suspending above the runout table, and a puller is suspended on each of the pair of rails, and the clamp device for the profile of each puller can be moved upward by an actuator. Provided in.

Are known.

[Problems to be Solved by the Invention] However, in the device of (1) described above, since there are two sets of rails next to the runout table, it is not only space-saving and maintenance work is difficult, but also the puller at both ends is A complicated device mechanism had to be provided for the parallel movement. Further, in the above-mentioned device (2), since a pair of rails are provided above and below the runout table to provide right and left rails, and pullers are respectively hung on each rail, there are two sets of rails having the same structure. Therefore, it took a space as in (1), and the structure for towing was complicated.

[Means for Solving the Problem] In order to solve such a problem, the profile drawing device of the extruder of the present invention is a puller guide device installed above the runout table and along the runout table, The puller guide device is provided with a puller capable of reciprocating in the run direction above the run-out table in the run direction and having a clamp for gripping the mold material. The puller guide device includes a lower main rail for guiding the puller during reciprocation. And the main rails on the upper tier for guiding the puller in the backward movement, and on both ends in the length direction of these main rails, the puller is installed between the main rail on the upper tier and the main rail on the lower tier. And a transfer device for transferring, and two puller guide devices are installed side by side, and the puller is installed in each puller guide device.

[Operation] According to the mold material traction device of the extruder of the present invention, the mold material extruded from the extruder is gripped by the clamp of the puller, and is pulled by running the puller along the puller guide device, Pulled out on the runout table.

When the puller moves along the lower main rail, it pulls and holds the mold material. When the end of the main rail on the forward side is reached, the grip of the clamp is released and the transfer device transfers it to the upper main rail.

While the puller of one puller guide device is pulling and moving the mold along the lower main rail, the puller of the other puller guide device moves back toward the extruder along the upper main rail. There is.

In the one puller guide device, when the puller reaches the forward end of the main rail to open the mold material and move it to the upper main rail, the other puller guide device Are transferred from the upper main rail to the lower main rail. After that, the other puller grips the mold material and pulls the mold material.

By repeating this series of steps, the drawing operation of the mold material is continuously performed.

In this case, the puller travels along the lower main rail when the puller moves forward, and travels along the upper main rail when returning. Therefore, even if two puller guide devices are installed side by side, the pullers of each puller guide device move smoothly without interfering with each other.

Embodiments Embodiments will be described below with reference to the drawings.

1 to 4 are schematic diagrams of the configuration and operation of the embodiment apparatus. Reference numeral 10 is an extruder, and a runout table 12 is installed at a front portion in the extrusion direction. End members on the opposite side of the extruder 10 with the run-out table 12 in between.
14 are installed.

An upper main rail 16 and a lower main rail 18 are provided above the runout table 12. These main rails 1
6 and 18 are installed in pairs in the width direction of the runout table 12.

A short elevating rail 22 reciprocating between an upper main rail 16 and a lower main rail 18 is arranged on the extruder 10 side of the runout table 12. A similar lifting rail 20 is arranged on the end member 14 side. These lifting rails 20,22
Is moved up and down by cylinders 21 and 23.

Pullers 24 and 26 are installed so as to be suspended from the main rails 16 and 18 and the lifting rails 20 and 22. The puller 24 is suspended on the right rails 16 to 22 facing the extruder 10 and
26 is suspended on the left rails 16 to 22.

These pullers 24, 26 are provided with wheels and can run on the rails 16 to 22, but they are non-self-propelled and have no running drive device.

In order to drive the pullers 24, 26, the end member 14 is provided with a drive wheel 28 connected to a drive device, and the extruder 10
A driven wheel 30 is pivotally attached to the. A wire rope (traveling driving force transmission member) 32 is bridged between the moving wheels 28 and 30, and an end portion of the wire rope 32 is connected to the pullers 24 and 26. The drive wheels 28, the driven wheels 30, and the wire ropes 32 are provided in pairs in the width direction of the runout table 12, one wire rope 32 is connected to the puller 24, and the other wire rope 32 is connected to the puller 26. ing.

The pullers 24, 26 are provided with clamps (not shown in FIGS. 1 to 4) for holding a mold material (not shown) extruded from the extruder 10. Both the clamp of the puller 24 and the clamp of the puller 26 can pass through the same position in the width direction of the runout table 12.

The pullers 24, 26 are not provided with a drive device for opening and closing the mold material grip by the clamps. A clamp opening / closing rail (grip opening / closing driving force transmitting member) 38 is provided to open and close the rail.

One end of the puller opening / closing rail 38 is pivotally attached to the extruder 10 via a link 40. A rod 43 of a cylinder 42 is connected to the other end of the rail 38, and the cylinder 42 is pivotally attached to the end member 14 via a link 44.

The pullers 24, 26 are provided with rolling wheels (not shown) that roll along the rails 38, and these rolling wheels can transmit power to the clamps via a link mechanism (not shown). .

Reference numerals 58a and 58b are guide rails for preventing the puller from touching, which will be described later.

In the extruder material pulling device configured in this way,
When extruding the mold material, as shown in FIG. 1, one puller 26 is arranged on the extruder 10 side of the runout table 12, and the elevating rail 22 is lowered so as to be at the same height as the lower main rail 18. I will let you. In addition, the clamp of the puller 26 is kept open (unclamped). In order to unclamp the clamp, the rod 43 of the cylinder 42 is projected. Then, the links 40 and 44 rotate around the respective pivots, and the rail 38 moves downward in parallel. This allows
The rolling wheels of the pullers 24, 26 also descend, and this descending movement is transmitted to the clamps to become unclamped.

After the tip of the die material extruded from the extruder 10 is introduced into this open clamp, the cylinder 42 is rod-retracted. As a result, the rail 38 rises and the clamp is in the gripped state. Therefore, the drive wheel 28 is driven to pull the puller 26.
Is moved forward (forward) along the lower main rail 18 to pull the mold material.

After puller 26 transferred to lower main rail 18, puller 26
The puller 24 is moved back (returned) to the extruder 10 side along the upper main rail 16 instead of moving forward. After the puller 26 has transferred to the lower main rail 18,
22 is raised to a height corresponding to the upper main rail 16.
Then, the puller 24 is moved until it moves onto the lifting rail 22 (FIG. 2).

When the puller 26 travels an appropriate distance along the lower main rail 18, the clamp is opened and the puller 26 and the mold material are separated. Then, the mold material on the run-out table 12 is transferred onto a side cooling table (not shown). In addition, while moving the puller 26 to the lifting rail 20,
22 is lowered, and the puller 26 is lowered to the mold material gripping height.
(Fig. 3).

After that, as shown in FIG. 4, the puller 24 is lifted to start returning, and the puller 26 grips and pulls the next mold material.

In this way, while one puller 24 or 26 is pulling the mold material, the other puller 26 or 24 is moved back to continuously pull the extrusion mold material.

In this extruder traction device, the pullers 24 and 26 are non-self-propelled, and a drive device (drive wheel 28) outside the puller is used.
Etc.) and is driven by the puller 2
The opening and closing of the clamps 4, 4 are also performed by a drive device (cylinder 42 or the like) outside the puller. Therefore, power supply equipment for supplying electric power and hydraulic pressure to the pullers 24, 26, hydraulic piping, etc. are not required, and the device configuration is simplified. Further, the pullers 24 and 26 themselves are also light in weight, and the main rails 16 and 18 and a supporting mechanism (not shown) including them can be lightly structured.

Next, the configuration of the pullers 24 and 26 will be described in detail with reference to FIGS.

FIG. 5 is an enlarged sectional view of a portion corresponding to line VV in FIG. 2, and in FIG. 5, pullers 24 and 26 are both main rails 16 and
It is shown moving along 18. FIG. 6 is a view taken along the line VI-VI of FIG. 5, and FIG. 7 shows the configuration of the lifting plate of FIG. 6 viewed from the back side.

In FIG. 5, reference numeral 50 is a column, and a horizontal member 51 is provided so as to project above the runout table 12 from the upper end thereof. From the lower surface of the horizontal member 51, the mounting member 52
And a beam 54 is installed below the attachment member 52. The beam 54 extends above the runout table 12 along the extending direction of the runout table 12. A cooling fan 55 is installed on the beam 54.

The mounting member 52 includes the upper main rail 16a and the lower main rail 1a.
8a and are fixed. The upper main rail 16b and the lower main rail 18b are fixed to the mounting member 53. Guide rails 58a, 58b are fixedly mounted on both side surfaces of the beam 54 via brackets 56a, 56b.

The pullers 24 and 26 are lift plates 6 that can be moved up and down, respectively.
0 and lever holding plate 62 that maintains a constant height
It has and. A pair of upper and lower traveling wheels 64a, 64b are provided at the upper part of the elevating plate 60. The traveling wheels 64a, 64b sandwich the main rails 16a, b, 18a, b, and thereby the pullers 24, 26 are mainly arranged. Suspended on rails 16a, b or 18a, b.

Wheel bases 66, 68 are fixed to the lever holding plate 62, and wheels 70a, 7 pivotally attached to the wheel bases 66, 68 are provided.
0b and 72a, 72b sandwich the upper and lower sides of the guide rails 58a, 58b to position the pullers 24, 26 in the horizontal direction in FIG.

Brackets 74 and 75 are fixed to the lever holding plate 62, and the wire ropes 32 for driving the pullers 24 and 26 are connected to the brackets 74 and 75.

A linear way 76 extending in the vertical direction is fixed to the inner surface of the elevating plate 60, and a slider 78 is provided so as to be vertically movable along the linear way 76. The slider 78 is fixed to the lever holding plate 62, and the elevating plate 60 and the lever holding plate 62 are connected so that their relative positions in the vertical direction can be changed. The slider 78 is configured to grip the linear way 76, and the lift plate 60 and the lever holding plate 62 are positioned so that the surface distance between them is constant.

An L-shaped lever 82 is pivotally attached to the lever holding plate 62 via a lever pivot 80. The upper end of the L-shaped lever 82 is fixed to the rail catcher 84. The rail catcher 84 includes a small plate 86 and rolling wheels 88a, 88b pivotally mounted on the small plate 86 and arranged in pairs one above the other. These rolling wheels 88a, 88b sandwich the clamp opening / closing rails 38a, 38b from above and below, and the rail catcher 84 is movable along the clamp opening / closing rails 38a, 38b.

A slider 90 is provided at the lower end of the L-shaped lever 82, and the slider 90 is slidable along a guide groove 92a of a slide rail 92. The slide rail 92 is movable along the pair of upper and lower horizontal guides 94 and 96 in the left and right directions in FIGS. The horizontal guides 94 and 96 are the lifting plate 60.
It is fixed to.

In the guide groove 92a of the slide rail 92, the I-shaped lever 98
The slider 98a at the upper end of is fitted slidably. The pivot 98b of the I-shaped lever 98 is attached to the lifting plate 60.

A long hole 98C is formed at the lower end of the I-shaped lever 98, and the connecting pin 1
The slide spool 102 is connected to the I-shaped lever 98 via 00. The slide spool 102 is slidably fitted on a horizontal guide 105, and the horizontal guide 105 is fixed to the elevating plate 60. A bracket 102a of the slide spool 102 is pivotally attached to one end of a spring cylinder 104.
A link 106 is fixed to a rod 104a of the spring cylinder 104, and the link 106 is pivotally attached to an arm 108. The arm 108 is integral with the pinion 110, and the pinion 11
The 0 meshes with the pinion 112. The pinion 110,
112 is pivotally attached to the lifting plate 60. Code 111
Indicates a weight provided integrally with the pinion 110.

An arm 114 is integrally provided on the pinion 112,
The tip of the arm 114 is pivotally attached to the link 116. The link 116 is connected to a link 120 via a turnbuckle 118, and the link 120 is pivotally attached to an arm 122.

The lower end of the elevating plate 60 is bent horizontally as shown in FIG. 5, and a clamp 124 is attached to the tip thereof. This clamp 124 is a U-shaped finger case 12
6. A large number of fingers 128 arranged in the finger case 126 are provided. The finger 128 is provided integrally with the shaft 132 so that it can be brought into and out of contact with the bottom surface portion (jaw) 130 of the finger case 126.

An arm portion 132a projects upward from the shaft 132, and one end of a spring 134 is connected to the projecting arm portion 132a. The other end of the spring 134 is connected to a fixed arm 136 fixed to the finger case 126.

The arm 122 is integrated with the shaft 132.

In the pullers 24 and 26 configured in this way, the arrow A
When the clamp open / close rails 38a, 38b are lowered as shown in
Lever 82 is lever pivot plate 80 and lever holding plate 62
Since it is pivotally attached to the rail catcher 84, the rail catcher 84 rotates about the lever pivot 80 as indicated by arrow B. With the rotation of the rail catcher 84, the lower end side of the L-shaped lever 82 moves leftward in FIG. 7 as indicated by arrow C, and the slide rail 92 is also guided by the horizontal guides 94 and 96 as indicated by arrow D. Move horizontally.

When the slide rail 92 moves horizontally, the upper half of the I-shaped lever 98 also rotates in the same direction (arrow E). Then, the lower half of the I-shaped lever 98 rotates as indicated by arrow F, and the slide spool 102 moves rightward in FIG. 7 as indicated by arrow G.

Along with the movement of the slide spool 102, the spring cylinder 104 also horizontally moves as indicated by an arrow H, and the arm 108 and the pinion 110 integrated with the arm 108 rotate as indicated by an arrow I.
As the pinion 110 rotates, the pinion 112 meshing with the pinion 110 rotates in the direction opposite to the pinion 110 as indicated by arrow J. Then, the arm 114 integrated with the pinion 112 also rotates in the arrow J direction.

As the arm 114 rotates in the J direction, the links 116, 120
Also moves horizontally in the same direction as arrow K. Then, the arm 122 rotates in the direction of arrow L, and the shaft 132 integrated with the arm 122 rotates in the direction of arrow M. Finger 1
28 is integral with the shaft 132 and rotates in a direction away from the jaw 130 as indicated by an arrow M as the shaft 132 rotates. With the rotation of this finger 128, finger 128
There is a gap between the jaw and the jaw 130, and the clamp is opened.

When the clamp opening / closing rails 38a or 38b are moved upward from this clamp release state, the operation in the opposite direction is performed, and the finger 128 rotates in the direction approaching the jaw 130, and the finger 128 and the jaw 130 are separated from each other. It becomes possible to sandwich the mold material between them. The spring cylinder 104
And spring 134 biases finger 128 in the direction that it pushes against jaw 130. Further, the spring cylinder 104 buffers the operation of the link mechanism accompanying the vertical movement of the clamp opening / closing rails 38a, 38b.

By operating the cylinders 21 and 23, the lifting rails 20 and 22
When moving up and down, only the lifting plate 60 moves up and down,
The lever holding plate 62 remains at the same height. That is, the lifting plate 60 and the lever holding plate 62
And are movable up and down via the linear way 76.
Further, the sliding between the slider 90 and the guide groove 92a causes the L-shaped lever 8 to move.
The vertical distance between 2 and the slide rail 92 is allowed to change. Therefore, when a vertical driving force is applied to the lift plate 60, the lift plate 60 is moved to the lever holding plate.
Move up and down freely from 62. Along with the vertical movement of the lifting plate 60, the clamp 124 also moves vertically.

As is apparent from FIG. 5, when one puller 26 pulls the profile forward, the clamp 124 of the other puller 24 occupies a position directly below the beam 54, and thus the pullers 24, 2
Even if 6 is moved in the opposite direction, those pullers 124 do not collide with each other.

Regarding the pullers 24 and 26 in the above-described embodiment, the non-self-propelled type using the drive wheel 28 not equipped with the traveling drive device and the wire rope 32 driven type by the driven theory 30, is described.
The present invention is not limited to this, and a self-propelled type in which a traveling drive device such as a motor or a linear motor is mounted on the pullers 24, 26 may be used.

Regarding the clamps 124 of the pullers 24, 26, the external drive clamp type in which the mold material is clamped via various transmission mechanisms has been described as described above, but the piston and the cylinder are arranged on the pullers 24, 26. Then, an internal drive clamp type in which the mold material is directly clamped may be used.

[Advantages of the Invention] As described above, according to the profile drawing device of the extruder of the present invention,
When moving the puller between the upper and lower main rails arranged above and below, pull up and down the short rails that are engaged with the cylinders located on both ends of the main rail in the longitudinal direction. Since it only needs to be moved, it has few mechanical parts for towing, and it does not take up much space, and the puller moves extremely smoothly.

Also, when the puller is running, the upper main rail or the lower main rail is always guided with the puller, so that the puller does not descend for some reason during the puller run. The chuck parts of the puller do not collide with each other, and the puller can always run safely and reliably.

[Brief description of drawings]

1, 2, 3, and 4 are schematic side views for explaining the operation of the apparatus of the embodiment of the present invention, and FIG. 5 is a longitudinal sectional view for explaining the detailed structure of the puller, and FIG. FIG. 7 is a front view of the lifting plate for explaining the clamp operating mechanism, and FIG. 7 is a rear view of the lifting plate. 10 …… Extruder, 12 …… Runout table, 16,16a, 16b …… Upper side main rail, 18,18a, 18b …… Lower side main rail, 20,22 …… Elevating rail, 38,38a, 38b… … Clamp opening / closing rail, 60 …… elevating plate, 62 …… lever holding plate, 82 …… L type lever, 92 …… slide rail, 98 …… I type lever, 104 …… spring cylinder, 110,112 …… pinion, 124 ...... Clamp, 128 ...... fingers.

Claims (1)

[Claims] 1. A puller guide device installed above the runout table along the runout table, and a clamp for holding the mold material, which is guided by the puller guide device and can reciprocate in the run direction above the runout table. The puller guide device includes a lower main rail for guiding the puller when reciprocating, an upper main rail for guiding the puller when returning, and both end sides in the longitudinal direction of these main rails. And a transfer device for transferring the puller between the main rail on the upper stage side and the main rail on the lower stage side, and two puller guide devices are installed in parallel. A profile drawing device of an extruder in which the puller is installed in each puller guide device.