JP2543442B2 - Coil tip induction device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil tip guiding device for automatically guiding a coil tip from an uncoiler to a leveler.

[0002]

2. Description of the Related Art The stripping work from the uncoiler, which unwinds the coil material held in the center hole, to the leveler, which removes the strain of material through several sets of work rolls arranged in a zigzag, is the equipment layout, coil rigidity. ， It depends on various conditions such as usage, and it takes a lot of time.

Generally, as shown in FIG. 7, the leveler 10 and the lower part of the uncoiler 1 on which the winding coil material 5 is mounted are shown.
The guide plate 7 is provided between the pinch rollers 39 and 42 which are placed in front of or integrated with the (work roll 12).
By disposing U and 7D and rotating the uncoiler 1, the coil tip is self-propelled in the guides 7U and 7D and inserted between the open pinch rollers 39 and 42. However, in this structure, both guide plates 7
Since the tip of the coil must be accurately inserted between both pinch rollers 39 and 42 that are open and pass through the narrow passage between U and 7D, depending on the rigidity of the coil material 5 or the like, there is a problem of being caught in the middle. is there.

Therefore, as shown in FIG. 8, the upper pinch roller 42 is attached to the lever 8 which is rotatable about the support shaft 8S.
There is one in which the guide plate 7D and the lower pinch roller 39 are formed above the free space and the upper pinch roller 42 is rotated to clamp the tip of the coil. As an example of this, JP-A-62-156021 can be mentioned.

On the other hand, in order to eliminate and automate free running between the uncoiler 1 and the leveler 10, as shown in FIG. A clamper 17 that can be separated and approached by a cylinder device 16 is provided, and the coil tip guided by a knife edge 19 is sandwiched by both 17 and 18, and then the slider 15 is moved to move the pinch rollers to both ends. A structure for inserting between 42 and 39 has been proposed (Japanese Patent Laid-Open No. 62-161425).

[0006]

However, none of the molds shown in FIGS. 7 to 9 can be fed in the forward and reverse rotation directions. The molds of FIGS. 7 and 8 are limited to the case where the coil 5 is fed from below, and the mold of FIG. 9 is limited to the case where it is fed upward.

Further, the applicability is narrow, which cannot satisfy the diversification demand. That is, when the coil material 5 having a rigidity determined by the material and the thickness that is larger than the design value is used, the coil tip is wound. Therefore, especially in the molds shown in FIGS. 7 and 8, it is necessary to guide the coil tip between the pinch rollers 39 and 42. Will be difficult. On the other hand, if the soft coil material is smaller than the designed value, a so-called jam occurs before reaching between the pinch rollers 42 and 39 to prevent smooth passage. In the mold shown in FIG. 9, the coil material 5 hangs in the direction opposite to the receiving roller 18, so that normal operation cannot be performed.

Further, the ultimate goal, that is, complete automation of strip passing cannot be realized structurally. This is because, in any of the types, for example, an operator must assist the accompanying work such as placing the tip of the coil on the guide plate 7D or the like and then cutting the tightening band of the winding coil.

The present invention has been made in view of the above circumstances, and can be used for forward / reverse bidirectional feeding switching of coil material, has wide applicability to follow changes in coil material rigidity and winding diameter, and is fully automated. A possible coil tip guide device is provided.

[0010]

The present invention eliminates the free running of the coil material from the uncoiler to the leveler, receives the tip of the coil fed from the uncoiler on the spot, and directly clamps it with both pinch rollers. The above object is achieved by forcibly moving the tip of the coil to the level of the leveler feed line. That is, the present invention is a coil tip guiding device that guides the tip of a winding coil attached to an uncoiler to a leveler, which includes a carriage that can reciprocate between the uncoiler and the leveler, and a lower pinch roller. And a slider mounted on a column of the carriage so as to be able to move up and down, an upper pinch roller moving means attached to the slider for moving the upper pinch roller away from the lower pinch roller, and a bracket rotatably supported by the slider. And a coil pressing means formed by including a lower pressing roller rotatably supported at the tip of the bracket, an inclination rotating mechanism for inclining the bracket to rotate, and a rotating mechanism for the lower pressing roller. .

[0011]

According to the present invention, the upper pinch roller moving means is opened to bring the upper pinch roller into contact with or close to the surface of the winding coil mounted on the uncoiler, and the lower pressing roller of the coil pressing means is wound from below. Press and place on. Here, in the case of forward rotation, when the lower presser roller is rotated together with the uncoiler, the coil tip is guided by the bracket of the coil presser means and the coil material is released between the upper pinch roller and the lower pinch roller opened. It is guided smoothly regardless of the rigidity of the. On the other hand, in the case of the backward feeding, when the uncoiler is rotated in the opposite direction to the above case, the coil tip is naturally dropped when passing the upper pinch roller and placed on the lower pinch roller. Full automation can be achieved because the band of the winding coil may be precut and placed.
Thus, in any case, the upper pinch roller moving means is closed to clamp the coil tip with both pinch rollers. After that, if the carriage and the slider are operated in a predetermined manner, the tip of the coil that is still clamped can be automatically guided to the height of the feed line of the leveler. Therefore, the coil material can be immediately supplied to the leveler by rotating the lower pinch roller.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram for explaining a main part and an operation, and FIG. 2 is a diagram showing an entire configuration.
Is roughly classified into a dolly 21 that can reciprocate between the uncoiler 1 and the leveler 10, a slider 31 that is vertically mounted on a column 22 of the dolly 21, and a lower pinch that is rotatably supported by the slider 31. It includes an upper pinch roller moving means 41 for moving the upper pinch roller 42 away from the roller 39, and a coil pressing means 51 having a lower pressing roller 52. The tip 5A of the coil 5 wound around the uncoiler 1 is automatically moved. Clamp and then leveler 10
Is automatically positioned, that is, automatically guided to the feed line height H.

That is, when the carriage 21 is moved to the uncoiler 1 and the slider 31 is positioned at the height corresponding to the coil diameter of the coil 5 wound around the uncoiler 1, the coil holder is fed in the forward rotation. While guiding the coil tip 5A by means 51, the coil tip 5A is sent to the upper and lower pinch rollers 42, 39 which are forcibly opened and clamped. On the other hand, in the case of reverse feeding, the coil tip 5 is moved to the lower pinch roller 3 by rotating the uncoiler 1 in the opposite direction.
9 can be automatically placed. After that, move the truck 21 to the leveler 10
It is formed so as to guide the clamped coil tip 5A to the feed line height H of the leveler 10 by moving it to the side and raising the slider 31. Therefore, if the uncoiler 1 and the lower pinch roller 39 are activated after that,
Immediately, the coil can be automatically supplied from the uncoiler 1 to the leveler 10.

Each constituent element will be described in detail below. First, as shown in FIG. 2, the uncoiler 1 includes the upper pressing roller 2 (2
Coil 5 wound around the main shaft 3 including double-headed type A, 2B)
5A is fed to the leveler 10 (side guide 11, work roll 12, roll 13). In addition,
The main shaft 3 can be switched between clockwise and counterclockwise rotation. The upper pressing rollers 2A and 2B are also rotated so as to cope with the soft coil. Further, 5B is a loop portion for providing speed matching between the uncoiler 1 and the leveler 10 during normal operation. That is, leveler 10
However, for example, it forms a buffer portion when the coil 5 is intermittently supplied to the post-press machine.

As shown in FIG. 1, the carriage 21 is entirely rotatably supported by wheels 24, 24, and is capable of reciprocating between the uncoiler 1 and the leveler 10. The movement amount is a fixed position shown by a solid line in FIG. 1 and a set position shown by a dotted line and a two-dot chain line, that is, a position corresponding to a coil diameter wound around the uncoiler 1, and is controlled by a control means (not shown). It A guide 23 that vertically guides the slider 31 is fixed to the upright pillar 22. Further, 25 and 26 have a role of reliably guiding the coil tip 5A sent by the lower pinch roller 39 by a guide to a predetermined position (feed line height H) of the leveler 10. Slider 31
Is guided by the guide 23 via a plurality of rollers 32,
It is vertically moved by a cylinder device 33 mounted on the carriage 21. In addition, the lower pinch roller 3 is attached to the slider 31.
In addition to 9, the upper pinch roller moving means 41 and the coil lowering means 51 are provided, and the whole of them can be moved between the both 1 and 10 in the left and right direction and the up and down direction. The lower pinch roller 39 is rotatably supported at a predetermined position of the slider 31 itself, and is rotationally driven in a clockwise direction (coil feed direction) in FIG. 1 by a motor 35 via a sprocket 37 and a chain 36.

Next, the upper pinch roller moving means 41 is a means for moving the upper pinch roller 42 away from the lower pinch roller 39, and a cylinder device 45 rotatably supported by the slider 31 by a pin 46, and this cylinder device. The piston rod 45 includes a bracket 43 and the like which is rotatably supported by a pin 44 at the tip of the piston rod. Bracket 43
Is rotatably supported by a shaft 48, and the roller 47 rotates about the shaft 48. Therefore, the cylinder device 45
As shown by the solid line in FIG. 1, when the piston rod is projected downward, the upper pinch roller 42 cooperates with the lower pinch roller 39 to clamp the coil 5 (5A). When the piston rod is pulled upward as shown by the dotted line and the chain double-dashed line, the upper pinch roller 42 is moved to the lower pinch roller 39.
Can be separated from. That is, the bracket 43 including the upper pinch roller 42 can be opened to the uncoiler 1 side, and the coil tip 5A can be easily introduced between the rollers 39 and 42. The bracket 43 is attached to the shaft 48.
Since the radius of rotation is made constant by rotating the upper pinch roller 42 around the center, the upper pinch roller 42 does not get caught on the surface of the wound coil even if the coil winding diameter changes.

Here, the upper pinch roller 42 in the opened state is capable of being used in reverse feeding and has an important role in achieving its full automation. That is, in the state shown by the dotted line in FIG. 1, when the uncoiler-1 is rotated clockwise, the coil tip 5A moves to the upper pinch roller 42.
Immediately after passing through, it falls naturally. Therefore, if the rotation of the uncoiler 1 is stopped at this time, the coil tip 5A can be automatically set directly on the lower pinch roller 39. That is,
If the winding coil 5 is set on the main shaft 3 and the tightening band is cut so that the tip end A of the coil tip 5A is located at the predetermined position P shown in FIG. 6 (A), the uncoiler 1 is shown in FIG.
The coil tip 5A can be automatically set on the lower pinch roller 39 as shown in FIG. 6 (C) simply by rotating the coil in the clockwise direction, so that it can be completely automated.

On the other hand, the coil lowering means 51 not only presses the lower side of the coil 5 wound around the uncoiler 1 but also guides the coil tip 5A and, in the case of downward feeding, both pinches the coil tip 5A. (The function of positively feeding between the rollers 39 and 42), the lower pinch roller 39
And a cylinder device 55 (rotatably supported on the slider 31 by a pin 56) as a tilt rotation mechanism for tilting and rotating the bracket 54, and the lower pressing roller 52. Can be moved up and down. The lower presser roller 52 is used for the sprocket 5
3, It is rotated in synchronization with the lower pinch roller 39 via the chain 38. Here, the motor 35 forms a rotating mechanism of the lower pressing roller 39. Therefore, if the piston rod of the cylinder device 55 is retracted, the coil tip 5A can be easily guided, and if the lower pressing roller 52 is rotated in this state in the case of downward feeding, the coil tip 5A is positively moved to the lower pinch roller 39. Can be led to the side. On the other hand, if the piston rod is projected, the coil 5 wound around the uncoiler 1 can be pressed from below without being distorted. If the air pressure of the cylinder device 55 is kept constant, it can be pressed at a predetermined pressure regardless of the size of the wound coil diameter.

The carriage 21 (wheels 24), slider 31 (cylinder device 33), motor 35, upper pinch roller moving means 41 (cylinder device 45), coil lowering means 51 (cylinder device 55), uncoiler 1 and the like are provided. Drive control is performed by the above-mentioned control means (which is formed of any one or combination of a computer, a logic sequence, a relay circuit, etc.) by a procedure program based on FIGS. 3 and 5. However, the procedural program can be appropriately changed and implemented.

Next, the operation of this embodiment will be described. (For forward rotation operation) Each cylinder device 33, 45,
55 is a state in which each piston rod is retracted, that is, the slider 31 and the lower pressing roller 52 are in the lower limit, and the upper pinch roller 42 is in a state of being separated from the lower pinch roller 39 (initial state), and is attached to the uncoiler 1. Coil 5
Is in the state shown in FIG. When a command to guide the coil tip 5A to the feed line height H of the leveler 10 is input here, the control means operates as follows based on the procedure program shown in FIG.

First, the carriage 21 is retracted to the left set position in FIG. 1 (the state shown by the dotted line and the two-dot chain line in FIG. 1) [steps (ST) 10 and 12 in FIG. 3]. Next, the cylinder device 33 raises the slider 31 to the set height (ST14, 16). Then, the cylinder device 55
Then, the bracket 54 is tilted and rotated clockwise in FIG. 1, and the lower presser roller 52 is pressed from below the coil 5 mounted on the uncoiler 1 (ST18). As a result, the coil tip 5A can be guided onto the bracket 54 as shown in FIG. 4 (B). Next, the motor 35 is activated to rotate the lower presser roller 52 (ST20). In this embodiment, the lower pinch roller 39 is also rotated. Therefore,
The coil tip 5A is attached to the bracket 5 as shown in FIG.
While being guided on the upper side of the sheet 4, the sheet is forcedly and positively fed between the pinch rollers 39 and 42. The motor 35 is stopped with the coil tip 5A placed on the lower pinch roller 39 (ST22).

At this time, the cylinder device 45 is actuated to rotate the bracket 43 with the shaft 48 inclined around the shaft 48 to lower the upper pinch roller 42. That is, as shown in FIG. 4D, the coil tip 5A is clamped by the rollers 42 and 39 (ST24). Subsequently, this time, the carriage 21 is advanced to the predetermined position in the right direction in FIG. 1 (the state shown by the solid line in FIG. 1) (ST26, 28). When it reaches a predetermined position, the cylinder device 33 operates and raises the slider 31 (specifically, the coil tip 5A clamped by both rollers 39 and 42) to the feed line height H (ST30, 32), and then the cylinder device 55. Bracket 54 (lower presser roller 52)
Is lowered (ST34) to be in the guide preparation posture of the coil 5 during coil supply. Therefore, the coil tip 5
A is automatically positioned at the feed line height H and is guided by the lowered presser roller 52. Then, the uncoiler 1 is driven for a predetermined time T to form the loop 5B (ST36, 38).

Thus, since the standby state is established, the lower pinch roller 39 (motor 35) is rotationally controlled to supply the coil 5 to the leveler 10 through the roller 47 and the guides 25 and 26. At this time, since the lower presser roller 52 is also rotated synchronously, the coil 5 can be supplied more smoothly.

(In the case of reverse feeding operation) The leading end A of the winding coil 5 is aligned with the upstream position P of the upper presser roller 2 and set on the spindle 3 as shown in FIG. 6A, and the tightening band is cut. And put. It should be noted that it is preferable that a desired number of auxiliary guide rollers 2X be provided if necessary. Here, similarly to the case of the forward rotation feeding operation (ST10 to 18 of FIG. 3), the upper pinch roller 42 and the lower presser roller 52 are in the state shown in FIG. 6B by the procedure operation of ST10 to 18 of FIG. Set to. After that, the main shaft 3 and the upper pressing roller 2 of the uncoiler 1 are rotated to rotate the winding coil 5 clockwise by a predetermined angle θ, and the leading edge A moves to the upper pinch roller as shown in FIG. 6C. It stops when passing 42 (ST20, 22 in FIG. 5). Then, the coil tip 5
A falls due to its own weight and rigidity and is placed on the lower pinch roller 39.

Thereafter, as shown in (D), the coil tip 5A is clamped by both pinch rollers 42 and 39 (ST2).
4) and S in the same manner as in the above case (ST26 to 40 in FIG. 3).
It suffices to execute T26 to T40. Therefore, the winding coil 5
The coil tip 5 </ b> A can be automatically guided to the leveler 10 by fully setting it on the spindle 3 in a predetermined posture.

However, according to this embodiment, the carriage 21 that reciprocates between the uncoiler 1 and the leveler 10 is used.
The uncoiler 1 includes a slider 31 that can move up and down on the carriage 21, an upper pinch roller moving means 41 and a coil lower pressing means 51 that are mounted on the slider 31.
Since the coil tip 5A wound on the coil is automatically clamped while being automatically guided to the feed line height H of the leveler 10, the manpower is wiped out regardless of the diameter of the coil 5 attached to the uncoiler 1. The coil 5 can be automatically, safely and reliably passed through the plate automatically.

Further, the upper pinch roller moving means 41 is constructed so as to rotatably support the upper pinch roller 42 on the bracket 43 and also to tilt the bracket 43 about the shaft 48, so that both pinch rollers are rotated. The coil tip 5A can be easily introduced between 42 and 39, and reliable clamping can be performed. The upper pinch roller 42 can be stably set on the surface of the wound coil regardless of the size of the coil diameter. Further, since the driving means of the bracket 43 is formed by the cylinder device 45, the coil 5 can be applied with a predetermined pressure regardless of the thickness thereof. Can be clamped.

The upper pinch roller 42 is a bracket 54 of the coil lower pressing means 51, more specifically, the lower pinch roller 3
Since the winding coil 5 is positioned close to the surface of the winding coil 5 above 9, the tip 5A of the winding coil 5 can be automatically set on the lower pinch roller 39 by rotating the winding coil 5 clockwise. Therefore, fully automatic threading can be performed only by switching to the reverse feeding operation and setting the initial condition A at the predetermined position P and ensuring the initial condition for cutting the tightening band.

Further, since the coil lowering means 51 is constructed such that it can be tilted and rotated concentrically with the lower pinch roller 39, and has a lower pressing pinch roller 52 which is automatically rotated at the tip thereof, it is mounted on the uncoiler 1. The forward coil end 5A that has been fed forward can be reliably guided and positively introduced between the rollers 39 and 42. Of course, the winding coil 5 of the uncoiler 1 is not separated. Also, the bracket 54
Since it is inclined by the cylinder device 55 and presses the lower pressing roller 52 from below the winding coil 5, reliable guidance can be performed regardless of the diameter of the winding coil.

[0030]

As described above, according to the present invention, the dolly, the slider attached to the dolly, the upper pinch roller moving means and the coil lowering means attached to the slider are provided, and the feeding point of the uncoiler is used. Since the structure is such that the tip of the coil is clamped and it is automatically guided to the height of the feed line of the leveler, the following effects are obtained. Both the forward rotation operation and the reverse rotation operation of the winding coil can be switched. Moreover, fully automatic threading is possible. Automatic guidance is possible without being affected by the width of coil material, material, and wall thickness. Further, the applicability of the present invention is wide because it can automatically follow the change of the winding coil diameter. Since the coil tip is automatically guided to the leveler side while it is clamped, there is no automatic running in the middle, so there is no non-directional protrusion or descent of the coil tip. Therefore, the layout between the uncoiler and the leveler is easy, and the formation of the coil loop can be specified.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an essential part and an operation of an embodiment of the present invention.

FIG. 2 is a diagram showing an overall configuration of the same.

FIG. 3 is a flowchart for explaining a normal rotation feeding operation.

FIG. 4 is a diagram for explaining an operation in a normal rotation feeding operation.

FIG. 5 is a flowchart for explaining a reverse rotation feeding operation.

FIG. 6 is a diagram for explaining an operation in a reverse rotation feeding operation.

FIG. 7 is a diagram for explaining a first conventional example.

FIG. 8 is a diagram for explaining a second conventional example.

FIG. 9 is a diagram for explaining a third conventional example.

[Explanation of symbols]

 1 Uncoiler 2 Upper presser roller 3 Main spindle 5 Coil 5A Coil tip 10 Leveler 20 Coil tip guide device 21 Cart 22 Strut 23 Guide 31 Slider 33 Cylinder device 35 Motor (rotating mechanism) 39 Lower pinch roller 41 Upper pinch roller moving means 42 Upper pinch Roller 43 Bracket 45 Cylinder device 48 Spindle 51 Coil lower pressing means 52 Lower pressing roller 54 Bracket 55 Cylinder device (tilt turning mechanism)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-161425 (JP, A) JP-A-64-15225 (JP, A)

Claims (1)

(57) [Claims] 1. A coil tip guiding device for guiding a tip of a winding coil mounted on an uncoiler to a leveler, comprising:
A carriage that can reciprocate between the uncoiler and the leveler, a slider that has a lower pinch roller and is mounted on a column of the carriage so as to be able to move up and down, and a slider that separates the upper pinch roller from the lower pinch roller. Of the upper pinch roller moving means, a bracket rotatably supported by the slider, a lower pressing roller rotatably supported at the tip of the bracket, and an inclination rotating mechanism for inclining and rotating the bracket and a lower pressing roller. A coil pressing means formed including a rotating mechanism, and the upper and lower pinch rollers
Coil tip induction mounting characterized in that the coil can be fed .