JPH0632934Y2 - Coil suspension - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a coil hanging device, and more particularly to a hanging device for reversing the coil in an arbitrary angle in a suspended state.

[Prior Art] As is well known, when a steel plate or the like is cut into a predetermined width and a coil wound in a spiral shape is lifted by a lifting machine, a hanging tool such as a hook is generally used.

FIG. 7 is a diagram schematically showing an example of a situation where the coil is loaded in a vehicle for transportation. In the figure, reference numeral 1 denotes a coil, and the coil 1 fed from the manufacturing line A is temporarily placed in a product storage B, and is loaded and shipped on a vehicle 3 such as a truck according to an order from a customer. When loading the vehicle 3, the coil 1 is down-ended (the center hole of the coil 1 is
There are a case where 1a is in a horizontal state (line of arrow C) and a case where the coil 1 is in an up-end state (the center hole 1a of the coil 1 is vertical) (line of arrow D). When loading at the down end, the coil 1 can be directly lifted by using the well-known C-shaped or L-shaped hook 2. However, in the case of loading at the up end, it is necessary to invert the coil 1 temporarily placed at the down end by, for example, the reversing machine 4 to make it the up end, and then lift the coil 1 through a special suspending tool 2a such as tongs.

The coil 1 is usually temporarily placed or stored in a down-end state so that the coil 1 can be easily handled. However, particularly when the coil 1 having a narrow width is transported by the vehicle 3, it is necessary to make the end up in order to ensure the stability of the coil, and there are times when the end is required due to the form of processing.

[Problems to be Solved by the Invention] When the down-end coil described above is used as the up-end, conventionally, a special device such as the reversing machine 4 is required as described above, and the up-end coil must be deformed. Instead, hoisting equipment had a complicated structure for hoisting and carrying. Therefore, there were problems such as soaring equipment costs and requiring many workers. In order to solve such a problem, even in the past, for example, a coil direction changing jig as disclosed in Japanese Utility Model Publication No. 60-167083, and
A coil tilt suspender and the like as disclosed in Japanese Patent Laid-Open No. 59-153987 have been proposed.

However, since these suspenders, such as the former change jig, cannot move the center of gravity of the suspended load, the swing of the load is large,
Further, there is a problem that it cannot be inverted when a plurality of narrow coils are lifted. On the other hand, the latter hoist has a large-scale and complicated structure, and there is a problem that the loss space becomes large when the hoist is loaded on the vehicle and the coil gap in the storage space cannot be reduced.

An object of the present invention is to provide a suspender which can solve the above-mentioned problems in the conventional suspender, and which enables safe and reliable and efficient coil reversal.

[Means for Solving the Problems] The present invention for solving the above problems includes an upper arm frame provided with a suspension link, a vertical frame that rotatably supports an end portion of the upper arm frame at an upper end portion, and a coil center. A coil supporting lower support body that is opened and closed along a hole and is rotatably supported at the lower end of the vertical frame, and is fixed to the vertical frame to rotate the upper arm frame and the lower support body, respectively. It is characterized by comprising a drive device and an equalizer mechanism attached to the drive device and for synchronizing the rotation speeds of the upper arm frame and the lower support.

[Embodiment and Action] A specific configuration of the present invention described above will be described with reference to the drawings showing an embodiment.

FIG. 1 is a side structural view showing an embodiment of a coil suspension (hereinafter simply referred to as suspension) according to the present invention.

In FIG. 1, reference numeral 11 shows a hanging device according to the present invention,
12 is an upper arm frame, 13 is a lower support, and 14 is a vertical frame. The upper arm frame 12 is provided with a suspension ring 15 at a portion corresponding to the center of gravity of the suspension 11, and is rotatably supported by an upper end of a vertical frame 14 via a rotation shaft 16. The lower support 13 is constructed so that it can be opened and closed along the center hole 1a of the coil 1, and is rotatably supported by the lower end of the vertical frame 14 via a rotating shaft 17.

The lower support 13 in the present embodiment includes a base frame 131 that is rotatably supported by the vertical frame 14 through the above-described rotation shaft 17, and is rotatably supported by the base frame 131 through a pin 132. The upper and lower suspension members 133, which are erected, and the suspension members 133, 1
The link member 134 connected to 33 and the base frame 131
And a cylinder unit 135 such as hydraulic pressure or pneumatic pressure whose tip is connected to the link member 134. A claw 133a is formed at the tip of the suspension member 133, and has a function of preventing the coil from falling when the coil 1 described later is suspended at the up end. Then, by driving the cylinder device 135 and bending the link member 134, the upper and lower suspension members 133 rotate about the pins 132 as fulcrums,
It opens and closes along the central hole 1a of the coil 1.

The vertical frame 14 includes the upper arm frame 12 and the lower support 13
A drive device 18 for rotationally driving each is fixed.
The drive device 18 in this embodiment is composed of a hydraulic drive system, and includes hydraulic cylinders 181, 182 for independently driving the upper arm frame 12 and the lower support 13, and a hydraulic supply unit 18.
3, the hydraulic supply unit 183 and hydraulic cylinders 181, 182
It is composed of a pipe 184 for connecting to and.

Then, the hydraulic pressure supply unit 183 is driven, and the hydraulic cylinder 1
When hydraulic pressure is supplied to 81 and actuated in the direction of arrow x, the upper arm frame 12 rotates in the direction of arrow X ₁ with the pivot shaft 16 as a fulcrum. Similarly, the lower support 13 also moves the hydraulic cylinder 182 with the arrow x.
By operating in the direction, it rotates in the direction of arrow X ₁ . On the contrary, when the hydraulic cylinders 181 and 182 are operated in the arrow y direction, the upper arm frame 12 and the lower support 13 are moved to the arrow Y ₁
Rotate in the direction. Reference numeral 19 denotes a flow rate adjusting valve provided in the pipe 184.If the flow rate adjusting valve 19 is adjusted so that the amount of oil supplied to the hydraulic cylinders 181, 182 per unit time is the same, the operating speeds of the hydraulic cylinders 181, 182 are the same. Therefore, the rotation speeds of the upper arm frame 12 and the lower support 13 can be synchronized. That is, it functions as an equalizer mechanism referred to in the present invention.

Next, the operation of the suspender shown in FIG. 1 will be described. Second
The figure is a perspective view showing an example of an operating state. The hanger 11
The lifting ring 15 provided on the upper arm frame 12 is engaged with the hook 5 of the lifting machine, and is lifted through the lifting ring 15. In the hanging device 11 in this state, the lower support 13 is closed as shown in FIG.
As shown in FIG. 2B, the lower support 13 is attached to the center hole 1a of the coil 1.
To insert. Then, the cylinder device 135 is driven, and the second
As shown in FIG. 3C, the upper and lower suspension members 133 are opened along the central hole 1a of the coil 1. By this opening operation of the lower support 13, the lower support 13 is brought into close contact with the coil center hole 1a. Then hanging equipment
Lift the 11 and hydraulic cylinder 18 at the predetermined level
Operate 1,182 in the direction of arrow x. This hydraulic cylinder 1
Upper arm frame 12 and lower support by actuation of 81,182
13 gradually rotates as shown in FIG. 2 (d), and as shown in FIG. 2 (e), the coil 1 can be inverted to the up-end state.

By the way, the suspending tool 11 is configured to balance (the center of gravity is located at the position of the suspending ring 15) in a state where the coil 1 is suspended by the lower support 13 as shown in FIG. 2 (c).
However, during the reversal, the center of gravity of the coil 1 moves to the vertical frame 14 side as the lower support 13 rotates. Therefore, if the suspension ring 15 is in a fixed position, the suspension 11 loses balance, swings greatly, damages nearby coils, and causes problems such as worker injury. In the hanging device 11 of the present invention, the above-mentioned problem is solved by attaching an equalizer mechanism to the drive device 18 that rotationally drives the upper arm frame 12 and the lower support body 13 to synchronize the rotation speeds of the upper arm frame 12 and the lower support body 13. Effectively solved by.
That is, by synchronizing the rotation speeds of the upper arm frame 12 and the lower support 13, the suspension ring 15 also moves following the movement of the center of gravity of the coil 1 described above, and the suspension ring 15 is always located at the center of gravity position. . For this reason, the suspension 11 that is suspended through the suspension ring 15 at the center of gravity can secure a stable balance even when the coil is reversed.

FIG. 3 shows another embodiment of the hanger 11 according to the present invention, and FIG. 4 is its exploded structural view. The drive device 180 of the present embodiment includes a motor 21, a worm speed reducer 22, and a drive rod 23 that meshes with the worm speed reducer 22,
The tip of the drive rod 23 is connected to the base frame 131 via a pin 136. Motor 21 and worm reducer
22 is fixed to the vertical frame 14 via a bearing block 24. Further, in the present embodiment, the rotary shaft 17 that pivotally supports the lower support 13 is located outside the pin 136 that connects the drive rod 23. Then, by driving the motor 21, the drive rod 23 advances and retreats, and the lower support 13 rotates about the rotation shaft 17 as a fulcrum. The crank arm 1 is attached to the pin 136.
91 is connected, and the other end of the crank arm 191 is rotatably joined to a fan gear 192 axially supported by the vertical frame 14 via a pin 193. The fan gear 192 is also an upper fan gear 194 that is also pivotally supported by the vertical frame 14.
Is in mesh with. A crank arm 196 is joined to the upper fan gear 194 via a pin 195, and the crank arm 1
The other end of 96 is connected to the upper frame 12 via a pin 137. The lengths of the crank arms 191,196, the intervals between the rotary shafts 16,17 and the pins 136,137, the rotation ratios of the fan gears 192,194, etc. are all the same.

When the motor 21 is driven and the drive rod 23 is advanced in the z direction, the lower support 13 rotates in the Z ₁ direction as shown in FIG. 5 (a). Following the rotation of the lower support 13, the crank arm 191 is pulled in the direction of the arrow z to rotate the fan gear 192. When the fan-shaped gear 192 rotates, the upper fan-shaped gear 194 that meshes with the fan-shaped gear 192 rotates, pushing up the crank arm 196 in the arrow w direction (counter-z direction), and the upper arm frame 12 uses the rotating shaft 16 as a fulcrum to move the arrow W.
Rotate in _one direction. As described above, the rotation of the upper arm frame 12 depends on the length of the crank arms 191,196 and the rotation shafts 16,17.
Since the distance between the pins 136 and 137 and the rotation ratio of the fan-shaped gears 192 and 194 are the same, they are synchronized with the lower support 13. That is, the crank arms 191,196 and the fan-shaped gears 192,1
Reference numeral 94 is a drive device for the upper arm frame 12 and also exerts a function as an equalizer mechanism for synchronizing the rotation speeds of the upper arm frame 12 and the lower support 13.

The above-mentioned drive rod system (the motor 21, the worm reducer 22, and the drive rod that meshes with the worm reducer 22)
It is also possible to use an electric actuator or a hydraulic or pneumatic cylinder instead of 23).

FIG. 6 shows another embodiment of the driving device according to the present invention. The drive device 18a in this embodiment includes a motor 25 fixed to the vertical frame 14 and a worm speed reducer.
185, and a screw rod 186 that meshes with the worm speed reducer 185. Screw rod 186 is a worm reducer 185
Screws 186a, 186b are engraved in the opposite direction with the center portion meshing with the as a boundary in the opposite direction. Blocks 187a and 187b are screwed onto the screws 186a and 186b, and crank arms 188a and 188b are connected to the blocks 187a and 187b. The other ends of the crank arms 188a and 188b are connected to the upper arm frame 12 and the lower support 13 via pins 189, respectively. By driving the motor 25 and rotating the screw rod 186 via the worm speed reducer 185, the blocks 187a and 187b screwed to the screw rod 186 move vertically. Screw rod 1
As described above, the screws 186a and 186b of 86 are reverse screws having the same pitch, and the lengths of the crank arms 188a and 188b and the intervals between the rotating shafts 16 and 17 and the pin 189 are the same. Therefore, the moving speeds of the blocks 187a and 187b become the same, and the speeds of the upper arm frame 12 and the lower support 13 that rotate in accordance with the movement become the same. The screw rod 186 and the block 187
The a and 187b constitute a drive device for the upper arm frame 12 and the lower support 13 and also function as an equalizer.

As described above, the suspending tool 11 of the present invention includes the upper arm frame 12 having the suspending link 15 at the position of the center of gravity, the lower support 13 for coil suspension that opens and closes along the coil center hole 1a, the upper arm frame 12 and the lower portion. A vertical frame 14 that supports the support 13 at the upper and lower ends is used as a constituent member, and a drive device 18 that rotationally drives the upper arm frame 12 and the lower support 13 is fixed to the vertical frame 14 and an equalizer mechanism is attached to the drive device 18. It is characterized by having attached. With such a structure, the rotation speeds of the upper arm frame 12 and the lower support 13 can be synchronized, and the coil 1 which is a heavy object
It can be flipped freely from the down end to the up end in the state of being suspended.

[Effects of the Invention] By providing the hanging device of the present invention, a wide coil, a narrow coil, or a plurality of narrow coils can be simultaneously lifted, and can be freely inverted from the down end to the up end without losing the balance of the hanging device. Is now possible. As a result, the coil can be safely lifted even in a narrow space, and the coil can be efficiently inverted in the lifted state.

[Brief description of drawings]

FIG. 1 is a side structural view showing an embodiment of a coil suspender according to the present invention, and FIGS. 2 (a) to (e) are perspective views showing an example of operating states of the suspender of FIG. FIG. 3 is a side structural view showing another embodiment of the lifting device according to the present invention, and FIG.
Fig. 5 is an exploded structural view, Figs. 5 (a) and 5 (b) are side views showing an example of the operating state of the lifting device of Fig. 3, and Fig. 6 shows another embodiment of the behavior device according to the present invention. FIG. 7 is a side structural view, and FIG. 7 is a schematic view showing an example of a situation in which a coil is loaded on a transportation vehicle. A: Manufacturing line, B: Product storage area, C, D: Loading line, 1 ... Coil, 1a ... Coil center hole, 2, 5
…… Hook, 2a …… Special suspension, 3 …… Vehicle, 4 …… Reversing machine, 11 …… Suspension of the present invention, 12 …… Upper arm frame, 13
…… Lower support, 131 …… Base frame, 132, 136, 137…
… Pin, 133… Suspension member, 133a… Claw, 134… Link member, 135… Cylinder device, 14… Vertical frame, 1
5 …… Suspension ring, 16,17 …… Rotary shaft, 18,18a, 180 …… Drive unit, 181,182 …… Hydraulic cylinder, 183 …… Hydraulic supply unit, 184 …… Hydraulic piping, 185 …… Worm reducer ,
186 ... Screw rod, 186a, 186b ... Screw, 187a, 187b ...
… Blocks, 188a, 188b, 191,196 …… Crank arms, 1
89,193,195 …… Pin, 19 …… Flow control valve, 192,194 ……
Fan-shaped gear, 21,25 …… motor, 22 …… worm reducer, 23 …… drive rod, 24 …… bearing block.

Claims (1)

[Scope of utility model registration request] 1. An upper arm frame provided with a suspension link; a vertical frame rotatably supporting an end of the upper arm frame at an upper end; a lower end of the vertical frame opened and closed along a coil center hole. A coil-suspending lower support body rotatably pivoted to; a drive device fixed to the vertical frame and rotatingly driving the upper arm frame and the lower support body respectively; and an upper arm attached to the drive device. A coil suspension comprising a frame and an equalizer mechanism for synchronizing the rotation speeds of the lower support.