CN108698100B

CN108698100B - Ribbon handling apparatus and ribbon handling method

Info

Publication number: CN108698100B
Application number: CN201680074957.8A
Authority: CN
Inventors: 内山聪
Original assignee: Kohan Kogyo Co Ltd
Current assignee: Kohan Kogyo Co Ltd
Priority date: 2016-02-15
Filing date: 2016-10-24
Publication date: 2020-11-06
Anticipated expiration: 2036-10-24
Also published as: JP6151392B1; JP2017144443A; CN108698100A; WO2017141493A1

Abstract

The invention aims to provide a band processing device and a band processing method, which can reduce the size of the device, save electricity and can process the band simply and rapidly without replacing the band. The present invention provides a band processing apparatus for processing a band used for processing a coiled rolled steel strip, comprising: a frame; a1 st rotating roller mounted on the frame; a 2 nd rotating roller disposed above the 1 st rotating roller and sandwiching the band between the 1 st rotating roller and the second rotating roller; a 3 rd rotating roller guiding the band pushed out from the 1 st rotating roller and the 2 nd rotating roller; and a driving mechanism for rotating at least one of the 1 st rotating roller, the 2 nd rotating roller and the 3 rd rotating roller.

Description

Ribbon handling apparatus and ribbon handling method

Technical Field

The present invention relates to a technique for handling a band or a band (these are collectively referred to as a band) for binding a rolled steel strip wound into a coil or the like, and more particularly to a band handling apparatus and a band handling method which can handle even if the thickness of the band changes and suppress damage or the like to the rolled steel strip.

Background

Rolled steel strips industrially used for various applications are transported in a state of being wound into a coil for reasons of transportation restrictions and the like. At this time, the coiled rolled steel strip is restrained by a band so that the winding does not loosen during transportation.

On the other hand, at a destination of transportation such as a factory, the above-mentioned band is first cut, and then the rolled steel strip in a coil shape is sent to various processing steps.

In recent years, various kinds of band cutters have been introduced in the trend of automation in cutting a band by a manual force.

Further, a technique of processing a band cut by a band processing apparatus after cutting the band from a coiled rolled steel strip is also known, as shown in patent documents 1 to 4, for example.

First, patent document 1 discloses a configuration in which an introduction port for inserting a tape used for packaging, a pair of upper and lower rollers for forcibly drawing the tape, a fixed blade for linearly guiding the drawn tape, and a rotary blade for cutting a tape projecting end in cooperation with the fixed blade are provided in a frame in which a receptacle is disposed.

Further, patent document 2 discloses a structure in which a band is wound in a spiral shape by a winding robot arm, and the wound spiral band is crushed from the side by a band crushing mechanism to be thinned.

Patent documents 3 and 4 disclose a structure that focuses on even the guide when the band is crimped.

That is, patent document 3 discloses a rotating head, a device for holding one end of a band, and a guide device for guiding the band at the time of winding, and discloses that the guide device is provided with a guide section movable between an open and a closed position.

Patent document 4 discloses a structure in which the band 2, which is nipped between the driving embossing roller 101 and the driven embossing roller 121, is curled into a coil shape by abutting portions 130A abutting against the band-directing edges 30.

Documents of the prior art

Patent document 1: japanese Kokai publication Hei-1-170450

Patent document 2: japanese laid-open patent publication No. 11-245925

Patent document 3: US2007/0063090A1 US publication

Patent document 4: japanese laid-open patent publication No. 59-189014

Disclosure of Invention

The problems to be solved by the invention are:

however, not only the above patent documents but also the conventional techniques cannot appropriately satisfy the market demand, and the above technical methods have the following problems.

That is, for example, in patent document 1, a rotary blade that cuts the tape projecting end in cooperation with a fixed blade is provided, and the tape needs to be replaced in the mechanism, and it is difficult to handle a tape having a thickness such as a seal portion.

In the structure of patent document 2, the cutting position and the holding position of the tape are separated from each other, and therefore the device structure becomes large in size.

In the structure of patent document 3, pressurization is required after winding of the tape, and correction guidance therefor is required, and power consumption increases due to pressurization.

On the other hand, the structure of patent document 4 is similar to that of patent document 3 in that a person who handles a belt with a relatively simple structure curls around the belt through the abutting portion 130A during winding, and therefore requires a large power.

As described above, in the conventional technology, there is no room for improvement in that the size of the apparatus can be reduced, power can be saved, and the tape can be quickly handled without replacing the tape.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a band processing apparatus and a band processing method which can process a band easily and quickly by reducing the size of the apparatus, saving power, and eliminating the need for replacing the band.

The technical means for solving the technical problems are as follows:

in order to solve the above problems, a band processing apparatus according to an embodiment of the present invention is (1) a band processing apparatus for processing a band used for a coiled rolled steel strip, including: a frame; a1 st rotating roller mounted on the frame; a 2 nd rotating roller disposed above the 1 st rotating roller and sandwiching the band between the 1 st rotating roller and the second rotating roller; a 3 rd rotating roller guiding the band pushed out from the 1 st rotating roller and the 2 nd rotating roller; a drive mechanism for rotating at least one of the 1 st rotating roller, the 2 nd rotating roller, and the 3 rd rotating roller; a robot arm configured to arrange the strap on the 1 st rotating roller so as to clamp the strap, so that the strap passes through the frame and the front end of the strap is extended out of the frame; and a band detection sensor that is disposed on a side of the frame from which a leading end of the band protrudes, detects the leading end of the band, and when the drive mechanism rotates at least one of the 1 st rotating roller, the 2 nd rotating roller, and the 3 rd rotating roller in a reverse direction so that the band moves in the 1 st direction and the leading end of the band enters the frame after the robot arm releases the grip of the band, the drive mechanism stops the movement of the band in the 1 st direction and rotates the rotating roller in a forward direction opposite to the reverse direction when the band detection sensor detects the leading end of the band that moves due to the reverse rotation, thereby causing the band to move in a direction opposite to the 1 st direction while being curled.

Further, in the band processing apparatus according to the above (1), (2) preferably further includes a moving frame on which the 2 nd rotating roller and the 3 rd rotating roller are mounted; the 2 nd rotating roller and the 3 rd rotating roller are capable of approaching or separating to the 1 st rotating roller through the moving frame.

Further, in the band processing apparatus according to the above (2), it is preferable that (3) the moving frame is mounted on the frame via a compaction pressure adjusting device; the compaction pressure adjusting means performs adjustment of the compaction pressure so that the compaction pressure becomes constant when the compaction pressure of the 2 nd rotating roller and the 3 rd rotating roller with respect to the band is changed due to a change in thickness of the band.

In the ribbon processing device according to any one of the above (1) to (3), (4) the drive mechanism preferably includes: a motor; a1 st driving mechanism connecting the 2 nd rotating roller and the 3 rd rotating roller and transmitting power from the motor to the 2 nd rotating roller and the 3 rd rotating roller; and a 2 nd driving mechanism connected to a driving chain, and transmitting power from the motor to the 1 st rotating roller via the driving chain.

In the band processing apparatus according to the above (4), it is preferable that (5) the 1 st driving mechanism includes: gears respectively arranged at one ends of the 2 nd rotating roller and the 3 rd rotating roller; a driven gear mounted on a moving frame on which the 2 nd rotating roller and the 3 rd rotating roller are mounted, and moving in accordance with movement of the 2 nd rotating roller and the 3 rd rotating roller; 1 st fixed gear, fixed position and configured; a1 st drive chain for transmitting power from the motor to the 2 nd turning roller and the 3 rd turning roller via the gear, the driven gear, and the 1 st fixed gear.

In the band processing apparatus according to the above (4), (6) preferably includes: the gear is arranged at one end of the 1 st rotating roller; a 2 nd fixed gear configured to be fixed in position; a 2 nd drive chain transmitting power from the motor to the 1 st rotating roller via the gear and the 2 nd fixed gear.

In the ribbon processing apparatus according to any one of the above (1) to (3), it is preferable that (7) further includes a guide member disposed between the 2 nd rotating roller and the 3 rd rotating roller, and guiding movement of the ribbon pushed out by the 1 st rotating roller and the 2 nd rotating roller.

In order to further solve the above problem, a ribbon processing method according to this embodiment includes: a step of clamping the front end of the band cut from the coiled rolled steel strip by a mechanical arm; separating the 2 nd rotating roller and the 3 rd rotating roller from the 1 st rotating roller mounted on the frame so as to enable the mechanical arm to pass through; a step of disposing the band held by the robot arm on the 1 st rotating roller in a state where the 2 nd rotating roller and the 3 rd rotating roller are separated from the 1 st rotating roller so that the band passes through the frame and the tip thereof is in a state of protruding out of the frame; a step of bringing the 2 nd rotating roller and the 3 rd rotating roller close to the 1 st rotating roller to clamp the band; a step of rotating at least one of the 1 st rotating roller, the 2 nd rotating roller and the 3 rd rotating roller in a reverse direction to move the ribbon in the 1 st direction and enable the front end of the ribbon to enter the frame; a step of detecting a leading end of the band moved by the reverse rotation using a band detection sensor disposed on a side of the frame from which the leading end of the band protrudes; and stopping the movement of the band in the 1 st direction when the leading end is detected, and then rotating the counter-rotating roller in the forward direction opposite to the counter-rotating direction, thereby moving the band in a direction opposite to the 1 st direction while crimping the band.

The invention has the beneficial effects that:

according to the present invention, the size of the device can be reduced, power can be saved, and the ribbon can be easily and quickly handled without replacing the ribbon. Further, since the guide and the pressing do not need to be corrected at the time of processing, the frequency of maintenance can be suppressed and the life of the apparatus can be increased.

Drawings

Fig. 1 is a perspective view showing a related embodiment of a strap handling device 100.

Fig. 2 is a perspective view showing the case where the moving frame is raised in the band processing apparatus 100 according to the embodiment.

Fig. 3 shows a front view, a side view, and a rear view of the band processing device 100 in accordance with an exemplary embodiment.

Fig. 4 is a cross-sectional view a-a of the strap handling apparatus 100 of fig. 3.

Fig. 5 is a cross-sectional view B-B of the strap handling apparatus 100 of fig. 3.

Fig. 6 is a cross-sectional view C-C of the cable tie handling apparatus 100 of fig. 3.

Fig. 7 is a cross-sectional view E-E of the strap handling apparatus 100 of fig. 4.

Fig. 8 is a cross-sectional view F-F of the cable tie handling apparatus 100 of fig. 4.

Fig. 9 is a flow chart illustrating a method of strap handling according to an embodiment.

Fig. 10 is an explanatory diagram of the action transition in the band processing method according to the embodiment.

Fig. 11 is a schematic diagram showing an example of the band BD.

Fig. 12 is a schematic diagram showing an operation when the seal S of the band BD passes through the roller.

Fig. 13 is a schematic diagram illustrating a structure of a driving device for rotating a roller according to an embodiment.

Fig. 14 is a schematic diagram illustrating the structure of a band processing apparatus 200 according to modification 1.

Fig. 15 is a schematic diagram illustrating the structures of the band processing apparatuses 300 to 500 according to modifications 1 to 4.

Detailed Description

The following describes embodiments for carrying out the present invention. For convenience, in the following description, a direction in which a band BD described later is inserted into or pushed out from the band processing apparatus 100 is defined as an X direction, a direction parallel to a rotation axis of the rotating roller and in a planar direction orthogonal to the X direction is defined as a Y direction, and a height direction orthogonal to the X direction and the Y direction is defined as a Z direction. However, the present invention is not limited to the above definition of the direction, and the scope of the claims cannot be appropriately narrowed.

< band handling device >

First, a band processing apparatus 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 8.

As shown in fig. 1 and 3, the band processing apparatus 100 according to the embodiment has a function of processing a band for binding a rolled steel strip wound in a coil shape. More specifically, the band processing apparatus 100 includes a frame 10, a1 st rotating roller 11, a 2 nd rotating roller 21, a 3 rd rotating roller 22, and a driving mechanism 30.

The frame 10 is formed of a metal such as carbon steel for machine structural use. The frame 10 is mounted with a1 st turning roller 11 and a moving frame 20 described later, and also with a compaction pressure adjusting device 23 as a power source of the moving frame 20 and a motor M as a power source of a driving mechanism 30.

The 1 st rotating roller 11 is mounted on the frame 10 as described above. In the present embodiment, the 1 st rotating roller is fixed to the frame 10 via a known bearing (not shown). As shown in fig. 6 and 8, a gear 39 is attached to the other end side of the 1 st rotating roller 11, and power from a motor M described later is transmitted to the 1 st rotating roller 11 via the gear 39, whereby the 1 st rotating roller 11 can be rotated.

Further, since the surface of the 1 st rotating roller 11 is pressed into contact with a band BD described later, knurling or the like is applied to increase the frictional force. Further, any of diagonal knurling, straight knurling, and diamond knurling may be used as the knurling process.

The treatment for increasing the frictional force is not limited to knurling, and other known surface roughening such as sandblasting may be applied.

Further, a resin such as hard rubber may be wound around the surface of the 1 st rotating roller 11. This ensures the above-mentioned frictional force.

The 2 nd rotating roller 21 is disposed above the 1 st rotating roller 11, and has a function of sandwiching the band BD between the 1 st rotating roller 11 and the same. The 2 nd rotating roller 21 is mounted on the moving frame 20 in the present embodiment so as to be freely movable up and down in the height (Z) direction. The 2 nd rotating roller 21 is attached to the moving frame 20 via a known bearing (not shown). As shown in fig. 6 and 7, a gear 33 is attached to the other end side of the 2 nd rotating roller 21, and power from a motor M described later is transmitted to the 2 nd rotating roller 21 via the gear 33, whereby the 2 nd rotating roller 21 can be rotated.

Further, the surface of the 2 nd rotating roller 21 is subjected to knurling or the like to increase the frictional force, as in the 1 st rotating roller 11. Further, any of diagonal knurling, straight knurling, and diamond knurling may be used as the knurling process.

Further, a resin such as hard rubber may be wound around the surface of the 2 nd rotating roller 21. This ensures the above-mentioned frictional force.

The 3 rd rotating roller 22 has a function of guiding the band BD pushed out from the 1 st rotating roller 11 and the 2 nd rotating roller 21. The 3 rd rotating roller 22 is disposed adjacent to the 1 st rotating roller 11 and the 2 nd rotating roller 21 during the winding process of the band BD. The 3 rd rotating roller 22 is mounted on the moving frame 20 via a known bearing (not shown) and can be arbitrarily moved up and down in the height (Z) direction. As shown in fig. 6 and 7, a gear 32 is attached to the other end side of the 3 rd rotating roller 22, and power from a motor M described later is transmitted to the 3 rd rotating roller 22 via the gear 32, so that the 3 rd rotating roller 22 can rotate.

Further, the surface of the 3 rd rotating roller 22 is subjected to knurling or the like to increase the frictional force, similarly to the 1 st rotating roller 11 and the 2 nd rotating roller 21. Further, any of diagonal knurling, straight knurling, and diamond knurling may be used as the knurling process.

The surface of the 3 rd rotating roller 22 may be wound with a resin such as hard rubber. This ensures the above-mentioned frictional force.

The 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22 may all be of the same type, but at least one of them may be different from the others. For example, the surfaces of the 1 st rotating roller 11 and the 2 nd rotating roller 21 may be knurled, and the surface of the 3 rd rotating roller 22 may be covered with a resin such as hard rubber. The diameters of the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22 may be equal to each other, but only the 3 rd rotating roller 22 may be set to be larger than the other diameters, for example.

As shown in fig. 2 and 3, since the 2 nd rotating roller 21 and the 3 rd rotating roller 22 of the present embodiment are mounted on the moving frame 20 and move up and down, the position in the Z direction is variable. In other words, the 2 nd rotating roller 21 and the 3 rd rotating roller 22 of the present embodiment can approach or separate from the 1 st rotating roller 11 through the moving frame 20.

As shown in fig. 3 to 5, the moving frame 20 is a part that moves up and down with respect to the frame 10, and in the present embodiment, is mounted on the frame 10 via the compaction pressure adjusting device 23 and the lifting table 24. The material of the moving frame 20 is not particularly limited, but is preferably the same metal as the frame 10, for example.

The compaction pressure adjusting device 23 has a function of moving the moving frame 20 in the Z direction, and in this embodiment, a pneumatic cylinder is preferred. However, the compaction pressure adjusting means 23 is not limited to the pneumatic cylinder, and, for example, a hydraulic cylinder or an electric motor may be applied.

As will be described later, the adjustment of the compaction pressure may be performed according to the pneumatic cylinder 23 as a compaction pressure adjusting means of the present embodiment, so that the compaction pressure of the rotating roller with respect to the band BD becomes constant when the compaction pressure varies due to the thickness variation of the seal S or the like of the band BD.

The elevating table 24 is configured to support the moving frame 20 and to be movable (elevated) in the Z direction by the pneumatic cylinder 23. The material of the lift table 24 is not particularly limited, but is preferably the same metal as the frame 10 and the moving frame 20, for example.

The driving mechanism 30 has a function of rotating at least one of the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22. More specifically, the driving mechanism 30 of the present embodiment includes a motor M, a1 st driving mechanism and a 2 nd driving mechanism, as shown in fig. 1 and 2.

In the present embodiment, the motor M is an electric motor, and receives power supply from a commercial power supply in a factory to generate power. A gear 31 is provided on the drive shaft of the motor M, and the gear 31 is rotationally driven by receiving the electric power.

The 1 st driving mechanism has a function of connecting the 2 nd turning roller 21 and the 3 rd turning roller 22 and transmitting power (rotation) from the motor M to the 2 nd turning roller 21 and the 3 rd turning roller 22. More specifically, the 1 st driving mechanism includes a gear 31 of the motor M, a gear 33 provided at one end of the 2 nd rotating roller 21, a gear 32 provided at one end of the 3 rd rotating roller 22, driven gears (gears 34, 35) mounted on the moving frame and moving in accordance with the movement of the gear 32 and the gear 33 in the Z direction, a1 st fixed gear (a 1 st gear 36, a gear 37) disposed at a fixed position, and a1 st driving chain 38a connecting these gears.

As shown in fig. 1 and 3, the 1 st drive mechanism includes a tension device (slack prevention mechanism) 40 that prevents slack in the 1 st drive chain 38 a.

On the other hand, the 2 nd drive mechanism has a function of being connected to the 2 nd drive chain 38b and transmitting the power from the motor M to the 1 st rotating roller 11 via the 2 nd drive chain 38 b. More specifically, the 2 nd driving mechanism includes a gear 31 including a motor M, a gear 39 provided at one end of the 1 st rotating roller 11, a 2 nd gear 36 (2 nd fixed gear) arranged at a fixed position, and a 2 nd driving chain 38b connecting these gears. As shown in fig. 8, the 2 nd gear 36 and the 1 st gear 36 are different gears having a common shaft.

Here, referring to fig. 1, 7 and 8, the positional relationship of the 1 st rotating roller 11, the 2 nd rotating roller 21 and the 3 rd rotating roller 22 according to the present embodiment will be described in detail.

First, the distance between the centers of the 2 nd rotating roller 21 and the 3 rd rotating roller 22 mounted on the moving frame 20 is set to P in relation to the positional relationship in the planar direction (plane parallel to the XY plane). In the present embodiment, the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22 all have the same diameter D.

Therefore, since a gap is formed between the 2 nd rotating roller 21 and the 3 rd rotating roller 22, the distance P between the centers becomes a value larger than D (P > D).

And the center axis of the 1 st rotating roller 11 is located at the very midpoint of the above-described distance P between the centers with respect to the planar direction (the case viewed from above in the Z direction). In this way, the configuration is not limited to the configuration in which the leading end of the band BD is held by the robot arm RH and is transported to the band processing apparatus 100, and the configuration in which the leading end of the band BD is pushed between the rotating rollers as in the conventional art may be applied.

On the other hand, the 2 nd rotating roller 21 and the 3 rd rotating roller 22 mounted on the moving frame 20 are positioned so that their center axes are at the same height with respect to the positional relationship in the height (Z) direction.

As shown in fig. 1, when the moving frame 20 is at the lower end position (i.e., the position where the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22 are closest to each other), the upper end portion (highest position in the Z direction) of the 1 st rotating roller 11 is disposed at a higher position than the lower end portions (lowest position in the Z direction) of the 2 nd rotating roller 21 and the 3 rd rotating roller 22. In this way, the band BD is appropriately crimped (curled) at the time of handling of the band BD described later.

The 2 nd rotating roller 21 and the 3 rd rotating roller 22 may be arranged so that the positions of the center axes thereof are not the same height. For example, in the case where the 1 st rotating roller 11 is eccentrically disposed on the 3 rd rotating roller 22 side with respect to the plane direction, the Z position of the center axis of the 3 rd rotating roller 22 is preferably disposed higher than the Z position of the center axis of the 2 nd rotating roller 21. Conversely, when the 1 st rotating roller 11 is eccentrically disposed on the 2 nd rotating roller 21 side, the Z position of the center axis of the 3 rd rotating roller 22 is preferably disposed lower than the Z position of the center axis of the 2 nd rotating roller 21.

< handling method of band >

Next, a ribbon processing method according to the present embodiment will be described with reference to fig. 9 to 11.

The band processing method of the present embodiment is performed by a process of rolling up the band BD by rotationally driving the rotating rollers, and is performed after the band BD binding the rolled steel strip in a roll shape or the like is cut.

First, the leading end of the band BD cut off from the roll for rolling the steel strip is held by the robot arm RH.

At this time, since the leading end of the cut band BD is held by the robot arm RH, the leading end of the band BD is exposed by an operation that requires replacement in the conventional apparatus. However, in the present embodiment, as will be described later, the leading end of the band BD can be held and conveyed to the band processing apparatus 100, and therefore, the processing efficiency is extremely high.

That is, when the band BD is conveyed to the band processing apparatus 100, as shown in fig. 10 (a), the moving frame 20 is raised to form a space with the 1 st rotating roller 11, and the robot arm RH that grips the leading end of the band BD passes through the space. In other words, the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are separated from the 1 st rotating roller 11 so that the robot arm RH can pass through.

Here, the band BD separated from the rolled steel strip in a roll shape is not necessarily in a straight state, and may be in a wrinkled state as shown in fig. 1, for example. As shown in the same drawing, since the seal S is provided to the band BD, the thickness of the band BD is not uniform in the longitudinal direction.

In such a case, even if the conventional band processing apparatus is originally difficult to properly introduce the band BD into the apparatus, the passage of the seal S cannot be ensured even if the band BD can be introduced into the apparatus, and the band processing cannot be properly performed.

In contrast, in the present embodiment, as shown in fig. 10 (a), even a crimped band BD can be appropriately introduced into the band processing apparatus 100.

Next, in a state where the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are separated from each other, the band BD held by the robot arm is arranged on the 1 st rotating roller. After or simultaneously with this operation, as shown in step 1 of fig. 9, the moving frame 20 is lowered, and the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are brought close to the 1 st rotating roller 11 to clamp the band BD.

At this time, as shown in step 2 of fig. 9, it is detected whether or not the 1 st rotating roller 11 has the band BD disposed thereon. Specifically, the presence or absence of the band BD is detected and known based on the detection result of the band detection sensor 12 shown in fig. 1 and 2.

Further, for example, a known optical detector or a push button switch can be used as appropriate for the band detection sensor 12.

After the pinching by the robot arm is released, the rotating rollers (in this example, all of the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22) are rotated in the reverse direction as shown in step 3 of fig. 9 and (b) of fig. 10.

When these rotating rollers are rotated in the opposite directions, the pneumatic cylinder 23 as the compaction pressure adjusting means is adjusted so that the rotating rollers press the band BD in accordance with the 1 st compaction pressure. This 1 st compaction pressure is the lower pressure required for rewinding and is said to be the pressure to such an extent that the band BD does not slide on the rotating roller.

Thereafter, as shown in steps 4 and 5 of fig. 9 and (c) and (d) of fig. 10, the rotating roller continues the above-described reverse rotation until the leading end of the band BD is detected by the band detecting sensor 12, and when the leading end of the band BD is detected by the band detecting sensor 12, the reverse rotation of the rotating roller is stopped.

At this time, as shown in fig. 10 (d), it is desirable that the leading end of the band initially positioned on the 2 nd rotating roller 21 side is moved toward the 3 rd rotating roller 22 side.

Next, as shown in step 6 of fig. 9, the moving frame 20 is lowered and the rotating rollers grip the band BD by the 2 nd compaction pressure. More specifically, the pneumatic cylinder 23 as the compaction pressure adjusting means is adjusted to clamp the band BD by the 2 nd compaction pressure different from the 1 st compaction pressure described above. As a 2 nd compacting pressure, it can be said that a higher pressure is used to crimp the band BD.

Next, as shown in step 7 of fig. 9 and (e) to (h) of fig. 10, the rotating roller is rotated in the normal direction, and the held band BD is crimped.

As described above, in the present embodiment, when the band BD held by the rotating rollers is to be wound, the rotating rollers are first rotated in the reverse direction to detect the tip of the band BD, and the tip is then rotated in the forward direction to wind the band BD.

In order to achieve this feature, in the present embodiment, the rotation direction of the rotating roller is switched via the drive mechanism 30 based on the detection result of the band detection sensor 12.

Thus, the change of the strap can be performed without using the robot arm RH, and the shift to the crimping process of the strap BD can be performed quickly.

In the above-described processes of fig. 10 (b) to (c) and fig. 10 (f), the seal S of the band BD passes between the rotating rollers. In this case, in the conventional handling apparatus, for example, a pressure in the Z direction is applied to the rotating roller located on the upper side of the band BD, and therefore, in the worst case, the elements in the apparatus may be damaged or injured.

In contrast, in the present embodiment, as shown in fig. 12, the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are movable upward in the Z direction by the moving frame 20. In other words, when the compacting pressure of the rotating roller with respect to the band BD varies due to the thickness variation of the band BD (passage of the seal, etc.), the adjustment of the compacting pressure is performed by means of the pneumatic cylinder 23, so that the compacting pressure becomes constant.

Even if the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are movable upward in the Z direction by the moving frame 20, the rotation of the 2 nd rotating roller 21 and the 3 rd rotating roller 22 is maintained by the driving mechanism 30.

The principle of the driving force transmission by the driving mechanism 30 will be described with reference to fig. 13.

That is, as shown in fig. 13, in the present embodiment, the gear 31, the gear 36 (the 1 st fixed gear 36, the 2 nd fixed gear 36), the gear 37, and the gear 39 are fixed in position. On the other hand, the gear 32, the gear 33, the gear 34, and the gear 35 are mounted on the elevating platform and movable in the Z direction.

The gear 31, the 1 st gear 36, the gear 37, and the gears 32 to 35 are connected to the 1 st drive chain 38a except for the gear 39, so that the power from the motor M can be transmitted regardless of the position of the gears 32 to 35 in the Z direction, and as a result, the rotation of the 2 nd rotating roller 21 (gear 33) and the 3 rd rotating roller 22 (gear 32) can be maintained.

The gear 39 and the 2 nd gear 36 (2 nd fixed gear) are connected to the 2 nd drive chain 38b, and the power from the motor M is transmitted to the 1 st rotating roller.

And as shown in step 8 of fig. 9, an optical sensor or the like, not shown, is used to detect whether the crimping process of the band BD has been completed. Various methods are conceivable for the arrangement of the optical sensor, but it is preferable to be, for example, in the vicinity of the 1 st rotating roller 11. Alternatively, the load of the motor M may be monitored, and the presence or absence of the band BD in the rotating roller may be determined based on the variation in the load.

In this step 8, if the crimping process of the band BD is not completed, the normal rotation of the rotating roller shown in step 7 is continued.

On the other hand, when it is determined in step 8 that the crimping process of the band BD is completed, the process proceeds to step 9, and the moving frame 20 is raised to stand by for the next reception of the band BD.

According to the embodiment of the present invention described above, the 3-turn rollers are driven by the driving mechanism 30, so that the size of the apparatus can be reduced, power can be saved, and the ribbon BD does not need to be replaced, and the ribbon can be easily and quickly handled.

The above-described embodiments may be variously modified within a scope not departing from the gist of the present invention. Modifications applicable to the above-described embodiments will be described below. In the following modifications, members having the same functions and actions as those described above are denoted by the same reference numerals, and descriptions thereof are omitted as appropriate.

< modification 1 >

Fig. 14 is a schematic diagram showing a band processing apparatus 200 according to modification 1 of the present invention.

The band processing apparatus 200 according to modification 1 is characterized by further including a crimp guide member in comparison with the band processing apparatus 100 of the above-described embodiment.

That is, the winding guide 25 of the present modification is disposed between the 2 nd rotating roller 21 and the 3 rd rotating roller 22. The curl guide 25 of the present modification is disposed opposite to the 1 st rotating roller and has a function of restricting the movement of the band BD.

In this way, in the above-described crimping process of the band BD, the band BD is guided by the crimping guide member inside the rotating roller, and therefore, the band BD can be finally crimped in a beautiful shape.

Further, the material of the crimping guide element 25 is not particularly limited, but for example, a metal whose surface is particularly hard as compared with the frame 10 or the like is preferable. The width (depth direction of the paper surface in fig. 14) of the curl guide member 25 is not particularly limited as long as the band BD is sufficiently guided, but is preferably equal to or larger than the width of the band BD, for example.

< modifications 2 to 4 >

Fig. 15 is a schematic view showing a band processing apparatus according to modifications 2 to 4 of the present invention.

In the above-described embodiment, the same number of gears (the gear 34 and the gear 35) as the gear 32 and the gear 33 are used as the driven gears, but a different number of gears may be used as the driven gears. That is, in the band processing apparatus 300 according to modification 2 shown in fig. 15 (a), 1 gear G1 is mounted on the elevating platform 24 as a driven gear with respect to the gear 32 and the gear 33.

In the above-described embodiment, the drive mechanism 30 rotationally drives (rotates) all of the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22. However, the present invention is not limited to this, and may be configured to drive at least one of the 1 st rotating roller 11, the 2 nd rotating roller 21, and the 3 rd rotating roller 22.

That is, in the band processing apparatus 400 of modification 3 shown in fig. 15 (b), the 1 st rotating roller 11 and the 3 rd rotating roller 22 are rotatable by the driving mechanism 300. In modification 3, the gear G2 is mounted on the lift table 24 as a driven gear with respect to the gear 32. On the other hand, the 2 nd rotating roller 21 is formed to be freely rotatable although power generated by the driving mechanism 30 cannot be transmitted.

Further, in modification 3, the 1 st rotating roller 11 and the 3 rd rotating roller 22 are set to be rotatable, but instead, the 1 st rotating roller 11 and the 2 nd rotating roller 21 may be set to be rotatable, or the 2 nd rotating roller 21 and the 3 rd rotating roller 22 may be set to be rotatable. However, when the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are rotatable, there is an advantage that the 2 nd drive chain 38b can be omitted, and thus the change is easy.

On the other hand, in the band processing apparatus 500 of modification 4 shown in fig. 15 (c), only the 1 st rotating roller 11 is rotatable by the drive mechanism 300. On the other hand, the 2 nd rotating roller 21 and the 3 rd rotating roller 22 are formed to be freely rotatable although power generated by the driving mechanism 30 cannot be transmitted.

In modification 4, only the 1 st rotating roller 11 is set to be rotatable, but instead, only the 2 nd rotating roller 21 may be set to be rotatable, or only the 3 rd rotating roller 22 may be set to be rotatable.

< other modification example >

In the above-described embodiment and modification, 2 rotating rollers (the 2 nd rotating roller 21 and the 3 rd rotating roller 22) are mounted on the moving

frame

20, and 1 rotating roller is provided on the frame 10. However, the present invention is not limited to this configuration, and may be configured such that 1 rotating roller (2 nd rotating roller 21 or 3 rd rotating roller 22) is mounted on the moving frame 20 and the remaining 2 rotating rollers are provided on the frame 10.

The above embodiments and modifications are merely examples, and elements of the embodiments and modifications may be combined as appropriate to configure a new band processing apparatus and a system thereof without departing from the spirit of the present invention.

Industrially available possibilities:

as described above, the band processing apparatus and the band processing method according to the present invention can be applied to processing of a band easily and quickly while reducing the size of the apparatus and saving power.

Description of reference numerals: 100-500-band treatment device; 10-a frame; 11-1 st rotating roller; 12-a strap detection sensor; 20-moving the frame; 21-2 nd rotating roller; 22-3 rd rotating roller; 23-compaction pressure adjustment means; 24-a lifting platform; 25-a crimping guide element; 30-a drive mechanism; 31-39, G1, G2-gears; 40-tensioning means (anti-slacking mechanism); BD-ribbon; s-facing slip; m-motor.

Claims

1. A band processing apparatus for processing a band used for a coil-shaped rolled steel strip, comprising:

a frame;

a1 st rotating roller mounted on the frame;

a 2 nd rotating roller disposed above the 1 st rotating roller and sandwiching the band between the 1 st rotating roller and the second rotating roller;

a 3 rd rotating roller guiding the band pushed out from the 1 st rotating roller and the 2 nd rotating roller;

a drive mechanism for rotating at least one of the 1 st rotating roller, the 2 nd rotating roller, and the 3 rd rotating roller;

a robot arm configured to arrange the strap on the 1 st rotating roller so as to clamp the strap, so that the strap passes through the frame and the front end of the strap is extended out of the frame; and

a band detection sensor which is disposed on a side of the frame from which the front end of the band protrudes, detects the front end of the band,

after the mechanical arm releases the clamping of the cable tie, the driving mechanism enables at least one of the 1 st rotating roller, the 2 nd rotating roller and the 3 rd rotating roller to rotate reversely, so that the cable tie moves to the 1 st direction and the front end of the cable tie enters the frame,

when the band detection sensor detects the leading end of the band moved by the reverse rotation, the drive mechanism stops the movement of the band in the 1 st direction and rotates the rotating roller rotating in the reverse direction in the forward direction opposite to the reverse rotation, thereby moving the band in the direction opposite to the 1 st direction and crimping the band.

2. The strap handling apparatus of claim 1 wherein: a moving frame for mounting the 2 nd rotating roller and the 3 rd rotating roller;

the 2 nd rotating roller and the 3 rd rotating roller can be moved closer to or away from the 1 st rotating roller via the moving frame.

3. The strap handling apparatus of claim 2 wherein: the moving frame is mounted on the frame via a compaction pressure adjusting device;

the compaction pressure adjusting means performs adjustment of the compaction pressure so that the compaction pressure becomes constant when the compaction pressure of the 2 nd rotating roller and the 3 rd rotating roller with respect to the band is changed due to a change in thickness of the band.

4. A tie handling device according to any of claims 1 to 3, wherein: the drive mechanism includes:

a motor;

a1 st driving mechanism connecting the 2 nd rotating roller and the 3 rd rotating roller and transmitting power from the motor to the 2 nd rotating roller and the 3 rd rotating roller;

and a 2 nd driving mechanism connected to a driving chain, and transmitting power from the motor to the 1 st rotating roller via the driving chain.

5. The strap handling apparatus of claim 4 wherein: the 1 st driving mechanism includes:

gears respectively arranged at one ends of the 2 nd rotating roller and the 3 rd rotating roller;

a driven gear mounted on a moving frame on which the 2 nd rotating roller and the 3 rd rotating roller are mounted, and moving in accordance with movement of the 2 nd rotating roller and the 3 rd rotating roller;

1 st fixed gear, fixed position and configured;

a1 st drive chain for transmitting power from the motor to the 2 nd turning roller and the 3 rd turning roller via the gear, the driven gear, and the 1 st fixed gear.

6. The strap handling apparatus of claim 4 wherein the 2 nd drive mechanism comprises:

a gear provided at one end of the 1 st rotating roller;

a 2 nd fixed gear configured to be fixed in position;

a 2 nd drive chain transmitting power from the motor to the 1 st rotating roller via the gear and the 2 nd fixed gear.

7. A tie handling device according to any of claims 1 to 3, wherein: and a winding guide member disposed between the 2 nd rotating roller and the 3 rd rotating roller and disposed to face the 1 st rotating roller to restrict movement of the band.

8. A ribbon processing method is characterized by comprising:

a step of clamping the front end of the band cut from the coiled rolled steel strip by a mechanical arm;

separating the 2 nd rotating roller and the 3 rd rotating roller from the 1 st rotating roller mounted on the frame so as to enable the mechanical arm to pass through;

a step of disposing the band held by the robot arm on the 1 st rotating roller in a state where the 2 nd rotating roller and the 3 rd rotating roller are separated from the 1 st rotating roller so that the band passes through the frame and the tip thereof is in a state of protruding out of the frame;

a step of bringing the 2 nd rotating roller and the 3 rd rotating roller close to the 1 st rotating roller to clamp the band;

a step of rotating at least one of the 1 st rotating roller, the 2 nd rotating roller and the 3 rd rotating roller in a reverse direction to move the ribbon in the 1 st direction and enable the front end of the ribbon to enter the frame;

a step of detecting a leading end of the band moved by the reverse rotation using a band detection sensor disposed on a side of the frame from which the leading end of the band protrudes; and

and stopping the movement of the band in the 1 st direction when the leading end is detected, and then rotating the counter-rotating roller in the forward direction in the reverse direction opposite to the reverse direction, thereby moving the band in the direction opposite to the 1 st direction while crimping the band.