JPS6333910Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a clamping device for a depiler, and more particularly to a mounting structure for mounting frames of opposing tongs for lifting piling material after clamping. This is used in the field of depilers, which sequentially dispense piled items from the bottom up.

[Prior art]

Conventionally, link type tongs, slab lifters, and the like have been used on production lines at steel mills and the like to depile thick and heavy objects such as piled slabs. All of these devices occupy a large area, and the latter in particular has a complicated internal structure and relies on sliding guides to insert and remove the tongs, so if the weight is below a certain level, the desired sliding will not occur smoothly, and the piling material will be damaged. It may become impossible to exert sufficient clamping force for lifting. In other words, when depiling from one piling material progresses to a certain extent and the number of slabs that require lifting is reduced, or when handling slabs made of materials with low specific gravity, the load acting on the tongs is insufficient and the clamping There is a problem that functionality is impaired and depiling is hindered.

An example of a conventionally used device will be explained with reference to FIG. 2. A clamp device 1 is provided with a pair of frames 2 (only the right side shown) sandwiching its center line 1a, and each has a pair of tongs inside. 3 is inserted and fitted so as to be freely displaceable. The sides of the tongue 3 are guided by the inclined sliding surfaces 4a of a plurality of metals 4 buried in an upwardly opening shape on both sides of the inside of the frame 2, and the tongue 3 moves up and down as the displacement cylinder 5 expands and contracts. It's starting to move.

When the piled slabs 6A, 6B, . . . are mounted on the conveyance roller 7 and arrive between the two opposing frames 2, the conveyance of the conveyance roller 7 is stopped. When the cylinder 5 is slightly expanded, the tongs 3 are lowered, and the clamp claws 3a at the tips of the tongs 3 move downward and advance in the direction of the piling material 6, as shown by the imaginary line. When the second slab 6B from the bottom is clamped with a certain amount of force by this operation, the hydraulic oil in the cylinder 5 is released, leaving only the bottom slab 6A to be transported to the next process. The other slabs 6B, 6C, etc. above are separate frame 2.
It is lifted by a mechanism that raises it. At this time, the tongs 3 are supported only by the plurality of inclined metals 4, so when the frame 2 starts to rise, the tongs 3 integrated with the piling material 6 are left behind and the frame 2 only rises. Therefore, the tongue 3 is further moved toward the slab 6B by the inclined sliding surface 4a, and the clamping force by the clamp claw 3a is increased. During the subsequent ascent, the clamp claw 3A is blocked by the hard slab 6B and cannot move to the slab side, so the pair of tongs 3 and the piling material 6
are held by the left and right frames 2 via the metal 4. When the slab 6A is delivered by the re-driven transport roller 7, the frame 2 is lowered and the slabs 6B, 6C, . . . are placed on the stopped transport roller 7 again. When the clap of the slab 6B is released by the contraction of the cylinder 5, this operation is repeated and one piling material is sequentially depiled.

Incidentally, since the relative displacement between the frame and the tongue is carried out via the sliding guide surface of the metal that makes surface contact with each other, considerable sliding resistance is exerted during the descent when clamping the slab. Therefore, as described above, when the number of clubs decreases or when a lightweight slab is to be lifted, the sliding displacement required to exert the desired clamping force does not occur. Therefore, although it is possible to clamp heavy objects, the above-mentioned problem arises in that it is impossible to clamp light objects. In addition, it is necessary to install a cylinder for displacing the tongs on the frame near the tongs, which makes it difficult to reduce the size and weight of the device.

[Purpose of invention]

This invention was created in view of the above problems.
The purpose is to downsize the clap device and
To provide a clamp device for a depiler capable of lifting not only heavy objects but also light objects.

[Configuration of the invention]

The features of the present invention will be explained with reference to FIG.
A, 11B are each attached to each frame 12A, 12B so as to be movable relative to the frame 12 while maintaining its inclination direction, and a guide roller 17
A roller block 22 that guides the tongs 11 on the opposite side of the frame 12 is provided so as to be movable in the direction of the tongs by means of a guide member 23 attached to the frame 12. Tapered surface 2 with a larger slope on the side
2a is formed, and the tapered block 24 has a tapered surface 24a that is in sliding contact with the tapered surface 22a.
The frame 12 is displaceable in substantially the same direction as the direction of displacement of the tongs 11 by means of screw means 25 attached to the frame 12, in order to clamp the piling material 6 by the opposing tongs 11.
This is a clamping device for a depiler, in which a separating/separating drive means 31 is installed to bring the piling materials 6 close to each other, and an elevating drive means 36 is provided to move the frame 12 up and down in order to lift the piling material 6.

〔Example〕

The present invention will be described in detail below based on drawings of embodiments thereof.

As shown in FIG. 1, a pair of opposing tongs 1
1A and 11B are attached to each frame 12A and 12B in an upwardly open state at an angle of θ with respect to the vertical direction. And the center line of tongue 11 is 11m
The tongue 11 can be slightly displaced relative to the frame 12 while maintaining its inclination. Therefore, a support member 13 having a threaded tip is integrated into the upper part of the tongs 11, and this supports the upper member 12a of the frame 12, and between the ring member 14 and the upper member 12a, the displacement of the tongs 11 is prevented. A spring 15 is interposed to absorb and restore the amount. In order to adjust the elastic force of the spring 15, two adjuster nuts 16 are screwed onto the back of the ring member 14 fitted into the support member 13.

In order to guide the displacement of the tongs 11 and to receive the load acting on the tongs, a plurality of block guide rollers 17a are installed on the frame 1.
It is installed on 2. These guide rollers 17
a is rotatably held by several roller blocks 18 attached to each frame 12A, 12B, so that the load acting on the tongues 11A, 11B can be received almost equally. Therefore, the roller block 18 is supported by a pin so that the inclination of the tongue 11 can be adjusted in advance, and a semicircular bush 19 is fitted into the block for each guide roller 17a. In addition, tongs 1
1 has a liner 20 on the contact surface of the guide roller 17a.
a is attached to prevent wear and tear on the tongue 11 itself and promote rolling of the guide roller 17a.
Furthermore, a guide roller (not shown) is attached to the frame 12 in order to restrain the displacement of the tongs 11 in a direction perpendicular to the plane of the paper as necessary, and liners 21 for this purpose are also attached to the front and rear surfaces of the tongs 11.

In addition to the roller block 18 mentioned above, a roller block 22 is provided which guides the tongs 11 through the liner 20 on the opposite side of the guide roller 17a. This roller block 22 is the guide roller 1
The upper and lower metal members 23, which are located between the opposing tongues 11A and 11B and which are located between the opposing tongues 11A and 11B, and which are guide members that enable displacement perpendicular to the center line 11m of the tongues 11, that is, advance and retreat in the direction of the tongues, are connected to the frame. It is installed on 12. On the back surface of such a roller block 22, a tapered surface 22a is formed on the same side as the direction of inclination of the tongue 11, and is more inclined than that. Tongs 1
It is attached to the frame 12 so that it can be displaced in substantially the same direction as the direction of displacement of the frame 12. This taper block 2
4 has its center line 24m parallel to the above-mentioned center line 11m, and a screw hole is carved in the upper part above the center line 24m, and an adjuster bolt 25 serving as a screw means is inserted into this hole.
are screwed together. Therefore, by turning the adjusting bolt 25 passing through the upper member 12a of the frame 12, the taper block 24 can be displaced, and the initial adjustment of both the tapered surfaces 22a, 24a, as well as the liners 20, 20a or the guide roller 1 can be performed.
The gap can be adjusted by wear of the parts 7 and 17a, and can be fixed with a fixing nut 27. Note that the guide rollers 17a and 17 and the blocks 18 and 2 therefor
The number of 2 is appropriately selected as necessary.

By the way, the above-mentioned opposing tongs 11A, 11
A clamp claw 3a for clamping and lifting the piling material 6 on the conveyance roller 7 is attached to the lower tip of B. Then, in order to clamp the piling material 6 with the clamp claw 3a,
Wheels 29 pivotally supported by bearings 28 are mounted on the upper part of the frame 12, and two hydraulic cylinders act as driving means for moving the frames 12A, 12B toward and away from each other along the guide rail 30. 31 (one not shown) is a pedestal 32 and a frame 1 which are fixedly suspended from the guide rail 30.
It is attached to a bracket 33 fixed to 2. In addition to such a hydraulic cylinder 31, an elevating drive means for moving the frame 12 up and down in order to lift the piling material 6 is provided. This is a hydraulic cylinder 36 that moves the guide rail 30 along a lifting guide 35 via a bracket 34 fixed to the lower surface of the guide rail 30. Note that the separation drive means and the elevation drive means are not limited to the above-mentioned hydraulic cylinders, but may also be air cylinders or electric motors. Further, a crane can be used for lifting and lowering, and various measures can be taken to achieve downsizing depending on the installation situation of the device.

According to the embodiment configured as described above, the piling material 6 can be sequentially depiled and dispensed from below as described below.

For example, when a slab rolled in a blooming line is piled in advance and is to be depiled as necessary, the piling material 6 mounted on the conveying roller 7 is carried to the depiler shown in FIG. 1. When the conveyance roller 7 stops and the pile material 6 is positioned between the opposing tongs 11A and 11B, the clamp claw 3a moves to the second slab 6B from the bottom.
is brought into contact with. That is, first, the hydraulic cylinder 3
6 is reduced, the guide rail 30 is lowered, and the lower end of the tongue 11 is adjusted to be at the same height as the slab 6B. Simultaneously with or after this adjustment, the hydraulic cylinder 31 is extended and the respective frames 11A, 11B are guided by the guide rail 30 and approach, and the clamp claw 3a is attached to the slab 6B.
When it comes into contact with , the movement of the hydraulic cylinder 31 is stopped and the frame 12 is stopped.

In addition, turn the adjusting bolt 25 in advance to displace the taper block 24 in the direction of the center axis 24 m,
An initial running position between the tapered surface 24a and the tapered surface 22a of the roller block 22 can be taken. Also, during maintenance and inspection, adjust bolt 25
The tongs 11 are rotated, and the tongs 11
Adjustment is made so that a gap is secured so that the tongs 11 can appropriately roll with the guide roller 17, and the tongue 11 can be smoothly restored by the spring 15.

In this state, when the hydraulic cylinder 36 is extended, the frame 12 rises via the guide rail 30, but since the clamp claws 3a are in contact with both sides of the slab 6B, the frictional force causes the tongs 11 to rise. The frame 12 rises with the tongs 11 left behind, and the tongue 11 is displaced downward relative to the frame 12 via the guide rollers 17, 17a. At this time, the guide rollers 17 and 17a are connected to the frame 1.
2, so the guide rollers 17, 17
a rolls on the surface of the liners 20, 20a and the tongs 1
The contact point with 1 also rises. As a result, the contact point moves toward the piling material 6, and the clamping force of the piling material 6 by the clamp claw 3a is increased. Note that the relative displacement between the tongue 11 and the frame 12 at this time is absorbed by the contraction of the spring 15 provided on the upper member 12a of the frame 12. In this way, the clamp claw 3a is attached to the slab 6B.
When strongly clamped, a clamping force sufficient to lift the entire weight of the piling material 6 is generated. The harder the piling material 6 is, the greater this clamping force becomes even with a slight displacement of the clamp claw 3a.

The hydraulic cylinder 36 continues to extend after the tongues 11A and 11B are integrated with the slab 6B.
The tongs 11 are supported by guide rollers 17a and lifted by the frame 12, which is lifted by the frame 12. Then, when the conveyance roller 7 is driven, the slab 6
Only A is paid out to the next process. The conveyance roller 7 is stopped again, the hydraulic cylinder 36 is contracted and the piling material 6 is lowered, and when it is placed on the conveyance roller 7, the hydraulic cylinder 31 is contracted and the frame 12
A and 12B are separated. Since the clamping of the piling material 6 by the tongs 11A and 11B is released, the load acting on the tongs 11 is removed,
The tongue 11, which had been displaced downward with respect to the frame 12, is guided by the guide rollers 17, 17a by the resilient force of the spring 15 and restored upward. Such operations are repeated, and the piling material 6 is sequentially depiled from below.

In addition, when two pairs of the above-mentioned tongs are installed close to each other in the conveying direction of the piling material, each tong can clamp the front end and the rear end of the piling material with independent movements. Therefore, even if the piling material is deflected by swinging on the conveying roller before reaching the depiler, it can be corrected and depiled.

[Effect of idea]

As explained in detail above, the present invention is equipped with a guide roller block that maintains the inclination direction of the tongs facing each other in the upwardly open state and displaces them relative to the frame, so that the load acting on the tongs is evenly received. can be transmitted to the frame, and the tongs can be smoothly displaced. Therefore, even if the clamped piling material is lightweight or the load is reduced due to depiling, the clamping force caused by the movement of the tongs relative to the frame is prevented from decreasing, and falling accidents due to insufficient clamping can be avoided. can be prevented.

In addition, a tapered surface is formed on the back surface of the roller block located between both tongues, and an adjustable taper block that faces this is attached to the frame so that it can be displaced by screw means in approximately the same direction as the displacement direction of the tongues. Therefore, the settings of the tongs arranged so as to be sandwiched between a large number of guide rollers can be adjusted for suitable operation. As a result, post-installation adjustment work and maintenance inspection work, which are difficult to perform when the depiler becomes large, are facilitated.

Furthermore, since various types of drive means can be used to clamp and lift the piling material, it is possible to downsize the device and reduce the occupied area by taking into consideration the installation space and the dimensions of the piling material. It can be realized.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one side of the clamp device for a depiler according to the present invention, and FIG. 2 is a partial schematic view of a conventional clamp device. 6... Piling material, 11, 11A, 11B... Tongs, 12, 12A, 12B... Frame, 17a
...Guide roller, 18, 22...Roller block,
22a... Tapered surface, 23... Guide member (liner),
24...Taper block, 24a...Tapered surface, 25
...Screw means (adjustment bolt), 31... Separation drive means (hydraulic cylinder), 36... Lifting drive means (hydraulic cylinder).

Claims (1)

[Claims for Utility Model Registration] Each of the tongs facing each other in an upwardly opened state is mounted on each frame so as to be movable relative to the frame while maintaining its inclination direction, and the tongs are configured to guide the displacement of the tongs and to be attached to the tongs. Blocked guide rollers are mounted on the frame to receive the acting loads, and on the opposite side of the guide rollers a roller block guiding the tongs is moved in the direction of the tongs by a guide member mounted on the frame. The roller block is provided so as to be movable back and forth, and on the back surface of the roller block, a tapered surface is formed with a larger inclination on the same side as the inclination direction. and displacing drive means displaceable in substantially the same direction by screw means attached to the frame and for bringing the frames close to each other in order to clamp the piling material by opposing tongs; A clamping device for a depiler, characterized in that an elevating drive means for vertically moving the frame is provided in order to lift the piling material.