JP7143175B2 - Strip feeder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt-shaped material supply device for supplying a belt-shaped plate material to a working process such as pressing or cutting.

FIG. 14 is a schematic configuration diagram of the belt-shaped material supply device 100. As shown in FIG. As shown in this figure, a strip-shaped material supply device 100 supplies a strip-shaped plate material (hereinafter referred to as a strip-shaped material 101) made of steel, aluminum, or the like to a working process. An uncoiler 103 that feeds out the belt-shaped material 101 from the outer periphery of the coil material 102 while rotating 102, a curl removal part 104 that removes the curl of the belt-shaped material 101 fed out from the uncoiler 103, and the belt-shaped material 101 after the winding distortion is removed. and a delivery unit 105 that intermittently delivers the required amount for the downstream processing step (for example, Patent Document 1).
Note that the curl removing unit 104 and the feeding unit 105 may be collectively called a leveler feeder 106 or the like.

Here, as described above, the uncoiler 103 feeds out the band-shaped material 101 from the outer circumference of the coiled material 102 while rotating it. There are two types of feeding, namely feeding and feeding called "upward feeding" shown in FIG.
"Lower feeding" means pulling out the end of the coil material 102 from the "lower side" and feeding it to the leveler feeder 106, and "upward feeding" means pulling out the end of the coil material 102 from the "upper side" and feeding it to the leveler feeder 106. It means to let go. "Upper and lower" on the lower side and upper side refer to the direction with respect to gravity (vertical direction).

JP 2016-49538 A

However, the conventional belt-shaped material supply device 100 has the following problems.

(Task 1)
The installation area of the belt-shaped material supply device 100 in a factory or the like is increased.
That is, since it is difficult to finely operate the strip material 101 from the uncoiler 103 due to the weight of the coil material 102, maintenance of a constant delivery amount in the leveler feeder 106 may be hindered. For example, when it is attempted to feed the strip material 101 of a predetermined length to the processing process, the feed amount may be less than the predetermined length. In this case, the shortage of the delivery amount is caused by the weight of the coil material 102 in the uncoiler 103 or the like.
Therefore, conventionally, by providing slack in the belt-shaped material 101 between the uncoiler 103 and the leveler feeder 106, it is made possible to secure a constant feeding amount.

FIG. 15 is a conceptual diagram of conventional slack. In this figure, the strip 101 unwound from the uncoiler 103 hangs down slightly in the gravitational direction between the uncoiler 103 and the leveler feeder 106, and this hanging portion becomes a slack 107. FIG. Due to the presence of this slack 107, the feeding operation of the leveler feeder 106, that is, the intermittent feeding of the strip material 101 can be performed without any trouble.

However, in the conventional art, since slack 107 is provided between the uncoiler 103 and the leveler feeder 106, a required space 108 must be secured between the uncoiler 103 and the leveler feeder 106 for this slack 107. However, there is a problem that the space 108 increases the installation area of the belt-shaped material supply device 100 in a factory or the like.
In addition, in the case of downward placement, such a problem of installation area does not occur. This is because, in the case of the bottom extension, the slack 109 can be provided on the lower side (ground side) of the coil material 102 .

(Task 2)
It is troublesome to insert the end portion of the strip material 101 into the leveler feeder 106 .
Conventionally, the end portion of the belt-shaped material 101 was inserted into the leveler feeder 106 manually, but this insertion work was troublesome. That is, since the ends of the band-shaped material 101 also have curling, the curling is manually corrected, and the belt-shaped material 101 is inserted into the leveler feeder 106 after being flattened. and insertion work) was time-consuming and troublesome.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a belt-shaped material feeding apparatus which is designed to reduce the installation area of the belt-shaped material feeding apparatus. It serves two purposes.

According to one aspect of the present invention, there is provided a belt-shaped material feeding apparatus including an uncoiler for unwinding a belt-shaped material from a coil to a leveler feeder, in which the uncoiler is provided on the side opposite to the side where the leveler feeder is installed. is provided with slack generating means for giving slack to the strip material, and the slack generating means is a lower pressing portion provided on the ground side of the coil material, and the lower pressing portion is substantially dogleg-shaped. an arm bent in a curved shape, a substantially U-shape, a substantially V-shape, or a substantially inverted V-shape, with the bent inner side directed upward; It is characterized by having a pressing roller capable of pressing the ground side surface of the material, a rotating shaft integrally attached to the base end of the arm, and a group of rotating rollers arranged at predetermined intervals inside the bend of the arm. and
A preferred aspect of the first invention is characterized in that the center of rotation of the pressing roller is shifted in the installation direction of the leveler feeder from a line passing through the center of rotation of the coiled material in the vertical direction .

According to the belt material supply device of the present invention, it is possible to reduce the installation area of the belt material supply device, or to eliminate the trouble of inserting the ends of the belt material into the leveler feeder.

1 is a front view of a belt-shaped material supply device 1; FIG. 2 is a top view of the belt-shaped material supply device 1. FIG. 4 is an excerpt view of the swing arm 22 of the belt-shaped material end insertion portion 4. FIG. 4A and 4B are extracts of the guide arm 23 of the belt-like material end insertion portion 4, where (a) is an explanatory diagram of swinging of the guide arm 23, and (b) is an explanatory diagram of expansion and contraction of the guide arm 23. FIG. 4 is a structural diagram of a main part of a guide arm 23; FIG. It is explanatory drawing of the upper drawing in this example. FIG. 11 is an explanatory diagram of downward drawing in the present example; 4 is a conceptual configuration diagram of a control unit; FIG. Fig. 3 is a schematic flow diagram of a processing sequence; FIG. 10 is an explanatory diagram of one effect in the present example; It is a figure which shows the preferable improvement example of this example. FIG. 10 is a work process diagram of inserting the ends of the belt-shaped material into the leveler feeder in the case of upward feeding. FIG. 10 is a work process diagram of inserting the ends of the belt-like material into the leveler feeder in the case of downward feeding. 1 is a schematic configuration diagram of a belt-shaped material supply device 100. FIG. It is a conceptual diagram of the conventional slack.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the overall configuration of the belt-shaped material supply device 1 will be described.
FIG. 1 is a front view of the belt-shaped material supply device 1, and FIG. 2 is a top view of the belt-shaped material supply device 1. As shown in FIG.
In these figures, a belt-shaped material supply device 1 includes an uncoiler 2 and a leveler feeder 3 installed on a floor surface F of a factory or the like, and a belt-shaped material end insertion part 4 provided between the uncoiler 2 and the leveler feeder 3. ing. The belt-like material end insertion portion 4 is a portion that does not exist in the prior art described at the beginning. Hereinafter, the order of installation on the floor surface F is from left to right as viewed in the drawing, the uncoiler 2, the strip end insertion portion 4, and the leveler feeder 3, but the order is not limited to this. Each part may be arranged sequentially, for example, may be arranged from right to left as viewed in the drawing.

The uncoiler 2 includes a shaft member 6 that axially supports a coil material 5 obtained by winding a strip-shaped plate material (strip material) made of steel, aluminum, or the like into a coil shape. The shaft member 6 is driven to rotate freely forward and backward at an arbitrary speed by a driving means 8 attached to a frame 7. By this drive, the belt-shaped material is moved from the outer periphery of the coil material 5 to the belt-shaped material. It can be fed out at an arbitrary speed in the direction of the leveler feeder 3 through the end insertion portion 4 . When the coil material 5 is rotated forward (clockwise direction), the belt-shaped material is delivered "upward". Conversely, when the coil material 5 is rotated in the reverse direction (counterclockwise direction) Feeding out of the belt-like material is "downward". Please refer to FIG.

The uncoiler 2 includes an upper pressing portion 9 on the top side and a lower pressing portion 10 on the bottom side. A pair of arms 11 and 12 bent in a substantially V shape or a substantially inverted V shape and facing each other at the bent inner sides, and pressure rollers rotatably attached to the tips of the arms 11 and 12. 13 and 14, rotating shafts 15 and 16 integrally attached to the base ends of the respective arms 11 and 12, and rotating roller groups 17 and 18 arranged at predetermined intervals inside the bending of the respective arms 11 and 12. Prepare. Of the upper pressing portion 9 and the lower pressing portion 10, the lower pressing portion 10 in particular has a configuration unique to this example, although the details will be described later.

The arms 11 and 12 of the upper pressing portion 9 and the lower pressing portion 10 are attached to a base 19, and the rotating shafts 15 and 16 are rotated by driving means 20 and 21 for rotating the respective rotating shafts 15 and 16 in forward and reverse directions. It can swing back and forth about the center, and by this swinging, the pressing roller 13 of the upper pressing part 9 presses the outer peripheral upper surface (outer peripheral surface on the top side) of the coil material 5 downward (toward the ground). Alternatively, the pressing roller 14 of the lower pressing portion 10 can press the outer peripheral lower surface (outer peripheral surface on the ground side) of the coil material 5 upward (top direction).

The belt-like material end insertion part 4 has a swing arm 22 and a guide arm 23 . The swing arm 22 has an axis 24 integrally attached to its base end, and an elongated holding bar 25 having a substantially circular cross section rotatably attached to its tip. The driving means 27 rotates the swing arm 22 forward and backward, and the swing arm 22 swings forward (clockwise) or reverse (counterclockwise). The base end of the guide arm 23 is oscillatingly driven about the axis 24 of the oscillating arm 22 by a drive means 28 attached to a base 26. A telescoping mechanism 29 mounted inside the arm 23 allows the entire length of the guide arm 23 to be extended or retracted.

The leveler feeder 3 includes a curl removing section 30 for removing the curl of the strip unwound from the uncoiler 2, and a feeding section for intermittently feeding the strip after removing the curl in an amount required for downstream processing. 31. The curl removing unit 30 includes an upper roller group 30a consisting of a plurality of pressure rollers and a lower roller group 30b consisting of a plurality of pressure rollers. By the pinching operation, curling of the belt-like material is removed, and after being corrected to a substantially flat state, the belt-like material is sent to the feeding section 31. The material is intermittently delivered by the amount required for the subsequent processing process.

The rocking arm 22 of the belt-like material end insertion portion 4 will be described in detail.
FIG. 3 is an excerpt of the rocking arm 22 of the belt-like material end insertion portion 4. As shown in FIG. In this figure, the rocking arm 22 is driven by a driving means 27 attached to a base 26, and the tip of the rocking arm 22 pointing toward the coil material 5 (the tip to which the hold-down bar 25 is attached) moves up and down (top and bottom). ) direction. A dashed-dotted line 32 in the drawing is the swing locus of the tip of the swing arm 22 .

The guide arm 23 of the belt-like material end insertion portion 4 will be described in detail.
4A and 4B are extracts of the guide arm 23 of the belt-like material end insertion portion 4, where (a) is an illustration of swinging of the guide arm 23, and (b) is an illustration of expansion and contraction of the guide arm 23. As shown in FIG.

Swinging of the guide arm 23 will be described. The guide arm 23 is driven by a drive means 28 attached to a base 26, and the tip of the guide arm 23 directed toward the coil material 5 is oscillated in the vertical direction. A dashed-dotted line 33 in the drawing is the swing locus of the tip of the guide arm 23 .

Extension and contraction of the guide arm 23 will be described. As described above, the extension mechanism 29 is mounted inside the guide arm 23 . The telescopic mechanism 29 is also driven to extend and retract in the longitudinal direction of the guide arm 23 by a driving means 34 mounted inside the guide arm 23 . The state of (a) is when the telescopic mechanism 29 is retracted, and the state of (b) is when the telescopic mechanism 29 is extended.

The maximum extension amount of the expansion mechanism 29 is an amount that can contact the outer circumference of the coil material 5. For example, even if the winding diameter of the coil material 5 is the smallest, the outer circumference of the coil material 5 does not interfere. It is an amount that can be touched without

FIG. 5 is a structural diagram of the main part of the guide arm 23. As shown in FIG. In this figure, the telescopic mechanism 29 mounted on the guide arm 23 consists of an upper plate 35 flush with the upper surface (top surface) of the guide arm 23, and a lower surface (bottom surface) of the guide arm 23. A lower plate 36 that is flush with a plane, a holding member 37 that integrally holds the upper plate 35 and the lower plate 36 , and the holding member 37 (that is, the upper plate 35 and the lower plate 36 ) are attached to the longitudinal direction of the guide arm 23 . and a drive means 34 for driving in the direction.

In this figure, the holding member 37 (that is, the upper plate 35 and the lower plate 36) is driven in the longitudinal direction of the guide arm 23 by transmitting the driving force of the driving means 34 to the holding member 37 through the shaft 38. However, this is only an example of implementation. Other modes are also possible.

In addition, although this example includes several drive means (drive means 8, drive means 20, drive means 21, drive means 27, drive means 28, and drive means 34), these drive methods are not particularly limited. . For example, it may use hydraulic force or pneumatic force, water pressure, magnetic force, electric power, or other physical force.

Next, the action of this example will be described.
(Explanation of the action of this example corresponding to Problem 1 at the beginning)
FIG. 6 is an explanatory diagram of the upper drawing in this example. In this figure, the belt-like material 39 fed out from the uncoiler 2 passes through the belt-like material end insertion portion 4, is intermittently sent out to the processing process after the winding curl is removed by the leveler feeder 3. The belt-shaped material 39 in the uncoiler 2 is
(A) Pulled out from the lower side (ground side) of the coil material 5 to the opposite side (left side in this figure) from the arrangement of the strip end insertion portion 4 and the leveler feeder 3,
(B) change the direction after giving the required slack 40 on the same opposite side,
(C) Through the upper side (top side) of the coil material 5, it is paid out in the arrangement direction (right side in this figure) of the belt-like material end insertion part 4 and the leveler feeder 3.

A ground-side lower pressing portion 10 provided in the uncoiler 2 is for supporting the actions (A) to (C).

That is, in the case of upward feeding, first, the lower pressing portion 10 is raised, and the pressing roller 14 of the lower pressing portion 10 pushes the outer peripheral lower surface (outer peripheral surface on the ground side) of the coil material 5 upward (upper direction). press. At this time, the upper pressing portion 9 is in a released state (a state in which the coil material 5 is not pressed).
Next, while the end of the coil material 5 is gradually pulled out, the end of the coil material 5 is guided by the rotating roller group 18 of the lower pressing unit 10, and the end of the coil material 5 is placed on the opposite side (from the arrangement of the strip end insertion unit 4 and the leveler feeder 3). After giving the necessary slack 40 to the left side in this figure, the direction of the end of the strip 39 is changed, and it passes through the upper side (top side) of the coil material 5 and passes through the strip end insertion portion 4 and the leveler feeder 3. (right side in this figure).

U1 and U2 in the figure are control positions for controlling the amount of slack 40 when the sag 40 is raised. The amount of slack 40 is controlled in real time by a control unit which will be detailed later. That is, when the strip 39 is positioned at U1, the coil 5 is driven forward by the driving means 8 of the uncoiler 2, and the strip 39 is fed out so as to create the slack 40 by this drive. When it is positioned at U2, the driving of the driving means 8 of the uncoiler 2 is stopped, thereby stopping the strip 39 from being delivered. Therefore, the amount of slack 40 on the rise is controlled between two control positions (U1, U2).

The method of detecting these two control positions (U1, U2) is not particularly limited. For example, any method such as an optical method, an imaging method, a magnetic method, or a mechanical method may be used.

FIG. 7 is an explanatory diagram of the bottom drawing in this example. In this figure, the strip 41 unwound from the uncoiler 2 passes through the strip end inserting portion 4 and is intermittently fed to the processing step after removing curling by the leveler feeder 3 in the same manner as the top feeding. However, the difference from the above-described upward feeding (FIG. 6) is that the strip material 41 in the uncoiler 2 is arranged from the upper side (top side) of the coil material 5 to the side opposite to the arrangement of the strip end insertion part 4 and the leveler feeder 3 ( (left side in this figure), and after the required slack 42 is given to the lower side (ground side) of the coil material 5, it moves in the arrangement direction (right side in this figure) of the belt-like material end insertion portion 4 and the leveler feeder 3. This downward feeding is the same as the conventional one described at the beginning (see "feeding (lower feeding)" indicated by the dashed line in FIG. 15).

In this lowering, the upper pressing portion 9 provided on the uncoiler 2 is in a state of pressing the coil material 5, and the lower pressing portion 10 on the bottom side is in a release state in which the coil material 5 is not pressed. If necessary, the pressing roller 14 of the bottom pressing portion 10 and the rotating roller group 18 may assist in guiding the slack 42 .

D1 and D2 in the figure are control positions for controlling the amount of slack 42 when the sag 42 is lowered. The amount of slack 42 is controlled in real time by a control section which will be detailed later. That is, when the strip 41 is positioned at D1, the coiled material 5 is reversely driven by the driving means 8 of the uncoiler 2, and the strip 41 is fed out so as to create the slack 42 by this drive, while the strip 41 is pulled out at D2. , the driving of the driving means 8 of the uncoiler 2 is stopped, thereby stopping the strip 41 from being delivered. Therefore, the amount of slack 42 in the downward extension is controlled between two control positions (D1, D2).

The method of detecting these two control positions (D1, D2) is also not particularly limited. For example, any method such as an optical method, an imaging method, a magnetic method, or a mechanical method may be used.

FIG. 8 is a conceptual configuration diagram of the control unit. In this figure, a control unit 43 includes an arithmetic processing unit (computer 44) that executes a processing sequence described later (FIG. 9) by software, and an operation unit 45. The operation unit 45 further includes an upward-out button 46 and a downward-out button 46. button 47; The two buttons (upper button 46 and lower button 47) of the operation unit 45 are alternative selection buttons that turn off the other when one is turned on.
The computer 44 controls the start and stop of the driving means 8 of the uncoiler 2 according to the two control positions (U1, U2) for the upward feeding while the upward feeding button 46 of the operating section 45 is turned on, and the operating section While the lowering button 47 of 45 is turned on, the start and stop of the driving means 8 of the uncoiler 2 are controlled according to the two control positions (D1, D2) for lowering.

FIG. 9 is a schematic flow diagram of the processing sequence. In this figure, the control section 43 determines the feeding direction of the belt-shaped material based on which of the two buttons (upward feeding button 46 and downward feeding button 47) of the operation section 45 is turned on (step S1). .

When the determination result is "lower side", the control unit 43 determines the detection of D1 (step S2), and when determining the detection of D1, reversely drives the driving means 8 of the uncoiler 2 (step S3), and then detects D2. is determined (step S4), and when the detection of D2 is determined, the driving means 8 of the uncoiler 2 is stopped (step S5).

If the determination result is "upward", the control unit 43 determines the detection of U1 (step S6). The process of judging the detection (step S8) and stopping the driving means 8 of the uncoiler 2 when the detection of U2 is judged (step S9) is repeatedly executed while the judgment result in step S1 is "upward".

In addition, in the above description, the above processing sequence is executed by software, but the present invention is not limited to this. It may be implemented by hard logic or by mechanical mechanism.

FIG. 10 is an explanatory diagram of one effect in this example. As explained earlier, in the upward feeding in this example, the required slack 40 is given to the left side of the uncoiler 2 (the side opposite to the arrangement of the leveler feeder 3), so that the uncoiler 2 and the leveler feeder 3 (and the strip The space between the end insertion portion 4) can be reduced, and the installation area of the belt-shaped material supply device 1 in a factory or the like can be reduced. Conventionally (see FIG. 15), the slack 107 of the belt-shaped material 101 is provided between the uncoiler 103 and the leveler feeder 106, so the slack 107 is the amount between the uncoiler 103 and the leveler feeder 106. Whereas the space was large, in this example, it is not between the uncoiler 2 and the leveler feeder 3 (and the strip end insertion part 4), but on the left side of the uncoiler 2 (on the side opposite to the arrangement of the leveler feeder 3). This is because the slack 40 is provided, which eliminates the need for a space between the uncoiler 2 and the leveler feeder 3 (and the strip end insertion portion 4).

(Preferred example of improvement)
FIG. 11 is a diagram showing a preferable improvement example of this example. In this figure, as shown in (a), the center of rotation P1 of the pressing roller 14 of the lower presser 10 is slightly in the installation direction of the leveler feeder 3 from the line 48 passing through the center of rotation P2 of the coil material 5 in the vertical direction. deviated from This amount of deviation is called an offset.

For convenience of explanation, the offset is set to 0. (b) is the case when the offset is 0; In this case, the pressing position of the pressing roller 14 is on a line 48 passing through the center of rotation P2 of the coil material 5 in the vertical direction, and the end of the belt-shaped material pulled out from the coil material 5 is indicated by an outline arrow 49 in the figure. As shown, it is pulled out slightly upward due to the winding habit.

On the other hand, if the offset is set to a value exceeding 0, as shown in FIG. Even if there is, it will be pulled out horizontally or slightly downward.

By offsetting in this manner, the slack 40 of the belt-like material can be formed into a natural shape, which reduces the resistance when the belt-like material is paid out, thereby preventing the unwinding of the coil material 5. can.

Further, the lower pressing portion 10 is provided with an arm 12 bent in a substantially V shape, a curved shape, a substantially U shape, a substantially V shape, or a substantially inverted V shape, with the bent inner side facing the sky. Since the roller group 18 is arranged along the bend of the arm 12, the resistance when the belt-shaped material is guided by the roller group 18 can be reduced, and the unwinding of the coil material 5 can be further prevented. can be prevented.

Alternatively, the upward draw indicated by the hollow arrow 49 may cause the formation of the slack 40 to be hindered. This is because an erroneous detection of the control position (U1, U2) may occur depending on the magnitude of the upward direction. If it is pulled out horizontally or slightly downward as shown by the white arrow 50 by offsetting, the formation of the slack 40 is not hindered. This is because horizontal or downward drawing will not lead to erroneous detection of the control position (U1, U2).

The size of the offset may be set in consideration of the material and thickness of the coil material 5, the size of the winding peculiarity, and the like. (a value exceeding 0) is acceptable.

(Explanation of the action of this example corresponding to problem 2 at the beginning)
FIG. 12 is a work process diagram of inserting the ends of the belt-like material into the leveler feeder in the case of top feeding. The steps are in order of (a) to (h).
(a) After swinging the tip of the guide arm 23 slightly upward, the telescopic mechanism 29 of the guide arm 23 is extended so that the tip of the telescopic mechanism 29 hits the surface of the coil material 5 . Note that this abutment means "contact" with the surface of the coil material 5, but is not limited to this. It may also be possible to approach the surface of the coil material 5 while maintaining a minute distance that does not interfere with the step (b).
(b) A belt-shaped material is let out from the coil material 5 and brought into contact with the upper surface of the extension mechanism 29 .
(c) Slide the end of the strip material from the upper surface of the telescopic mechanism 29 to the upper surface of the guide arm 23 .
(d) retracting the telescopic mechanism 29 inside the guide arm 23;
(e) The rocking arm 22 is rocked downward to bring the presser bar 25 into contact with the upper surface of the belt-like material.
(f) The rocking arm 22 is further rocked downward, and the pressing bar 25 presses the end of the strip material downward (that is, while the end of the strip material is sandwiched between the tip of the rocking arm 22 and the guide arm 23). (applying pressure to the ends of the strip). As a result of this pressing, the ends of the band-shaped material are pressed and bent in the direction opposite to the curl (downward), thereby eliminating or reducing the curl of the ends.
(g) The swing arm 22 is swung upward and retracted out of the way.
(h) The end portion of the belt-like material whose curling is suppressed or alleviated is slid on the guide arm 23 and fed out to the leveler feeder 3 .

FIG. 13 is a work process diagram of inserting the end portion of the belt-shaped material into the leveler feeder in the case of downward feeding. This step is also the order of (a) to (h).
(a) After swinging the tip of the guide arm 23 slightly downward, the telescopic mechanism 29 of the guide arm 23 is extended so that the tip of the telescopic mechanism 29 hits the surface of the coil material 5 . Note that this abutment means "contact" with the surface of the coil material 5, but is not limited to this. It may also be possible to approach the surface of the coil material 5 while maintaining a minute distance that does not interfere with the step (b).
(b) A belt-like material is let out from the coil material 5 and brought into contact with the lower surface of the expansion mechanism 29 .
(c) Slide the end of the strip from the lower surface of the telescopic mechanism 29 to the lower surface of the guide arm 23 .
(d) retracting the telescopic mechanism 29 inside the guide arm 23;
(e) The rocking arm 22 is rocked upward to bring the presser bar 25 into contact with the lower surface of the belt-like material.
(f) The rocking arm 22 is further rocked upward, and the end of the strip is pushed upward by the pressing bar 25 (that is, while the end of the strip is sandwiched between the tip of the rocking arm 22 and the guide arm 23). (applying pressure to the ends of the strip). As a result of this pressing, the ends of the band-like material are bent in the opposite direction (upward direction) to the curling, thereby eliminating or reducing the curling of the ends.
(g) The swing arm 22 is swung downward and retracted out of the way.
(h) The end portion of the belt-like material whose curling is suppressed or alleviated is slid under the guide arm 23 and fed out to the leveler feeder 3 .

Therefore, in both the top feeding and the bottom feeding, these steps (a) to (h) are performed to correct the curling of the ends of the strip and to insert the ends of the strip into the leveler feeder after correcting the curling. can be mechanized to minimize manual work and reduce labor.

According to the belt-shaped material supply device 1 of the present embodiment configured as described above, various effects as described below can be obtained.
(a) In the upward feeding in this example, the left side of the uncoiler 2 (the side opposite to the arrangement of the leveler feeder 3) is provided with the required slack 40, so the uncoiler 2 and the leveler feeder 3 (and the strip end insertion portion) 4) can be reduced, and the installation area of the belt-shaped material supply device 1 in a factory or the like can be reduced.
(b) Since the center of rotation P1 of the pressing roller 14 of the lower pressing portion 10 and the line 48 passing through the center of rotation P2 of the coiled material 5 in the vertical direction are offset, the slack 40 of the belt-like material is not forced. The coil material 5 can be prevented from unwinding by reducing the resistance when the strip material is fed out.
(C) Further, the lower pressing portion 10 is bent in a substantially V-shape, a curved shape, a substantially U-shape, a substantially V-shape, or a substantially inverted V-shape, and an arm 12 whose bent inner side faces the sky. , and a group of rotating rollers 18 arranged along the bend of the arm 12, so that the resistance when the band-shaped material is guided by the group of rotating rollers 18 can be reduced. It can prevent unwinding.
(d) In addition, since the weight of the belt-shaped material of the slack 40 is received not only by the pressing roller 14 but also by the rotating roller group 18, the pressing roller 14 and the rotating roller group 18 firmly press the coil material 5 accordingly. Therefore, the unwinding of the coil material 5 can be further prevented.
(e) Alternatively, since an offset is provided between the rotation center P1 of the pressing roller 14 of the lower pressing portion 10 and the line 48 passing through the rotation center P2 of the coil material 5 in the vertical direction, control during upward feeding is performed. False detection of the position (U1, U2) can be avoided, and the formation of the slack 40 is not hindered.
(f) In both top and bottom feeding, manual work can be minimized by mechanizing the work of correcting the curling of the ends of the strip and inserting the ends of the strip into the leveler feeder after correcting the curling. , the labor can be reduced.

P1 Rotation center of pressing roller P2 Rotation center of coiled material 1 Belt-shaped material supply device 2 Uncoiler 3 Leveler feeder 4 Belt-shaped material end insertion part 5 Coiled material 10 Lower pressing part (generating means)
REFERENCE SIGNS LIST 12 arm 14 pressing roller 16 rotating shaft 18 rotating roller group 22 rocking arm (first arm)
23 guide arm (second arm)
25 holding bar (pressing means)
39 Strip material 40 Slack 48 Line passing through P2 in the vertical direction

Claims (2)

In a belt-shaped material feeding device equipped with an uncoiler for unwinding a belt-shaped material from a coil material to a leveler feeder,
A slack generating means is provided on the side of the uncoiler opposite to the side on which the leveler feeder is installed for making the strip material slack ,
The slack generating means is a lower pressing portion provided on the ground side of the coil material,
The lower pressing portion includes an arm bent in a substantially V-shape, a curved shape, a substantially U-shape, a substantially V-shape, or a substantially inverted V-shape, with the bent inner side directed upward;
a pressing roller rotatably attached to the tip of the arm and capable of pressing the ground surface of the coil material;
A rotating shaft integrally attached to the proximal end of the arm, and a group of rotating rollers arranged at predetermined intervals inside the bending of the arm.
A belt-shaped material supply device characterized by comprising: 2. A belt-shaped material feeding apparatus according to claim 1 , wherein the center of rotation of said pressing roller is shifted in the installation direction of said leveler feeder from a line passing through the center of rotation of said coiled material in the vertical direction.

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