JP3885008B2 - Winding method using winding jig for unwinding long tape-shaped film, unwinding method, and correction device for welded seam welded portion using them - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a winding and unwinding jig for a long tape-shaped film. The Winding method and unwinding method used ,and The present invention relates to a correction apparatus for welded seam welds using them.
[0002]
[Prior art]
Conventionally, joining of can bodies has been performed with solder, adhesives, etc. In recent years, considering the strength and cost, resin-coated metal plates such as pre-painted metal plates or laminated resin films are used. A method of forming a can body by forming it into a cylindrical shape or a rectangular tube shape and welding the joint is frequently used. Welding is performed mainly by electric resistance seam welding. Accordingly, since the step or burrs of the welded portion, or the deterioration or destruction of the resin film due to the heat effect around the welded portion occurs, it is indispensable to cover and correct the welded joint and the vicinity with the resin film. However, the inside of the can body is narrow, so it is difficult to install the correction device inside the can body, and when the can body is continuously transported, it is difficult to support the correction device from the outside without disturbing the transport. For this reason, there were cases where it was unavoidable to reciprocate the can body to cope with this. Recently, in order to improve productivity, there has been a strong demand from the related industries for correcting the coating of the inner surface of the weld seam by continuously conveying the can body in one direction at a high speed.
[0003]
In order to solve the above problem, Japanese Patent Application Laid-Open No. 2001-261135 discloses a guide member so as to penetrate the inside of the can body in parallel with the conveyance direction of the can body, and the external fixing frame without interfering with the conveyance of the can body. Guide member holding means that keeps it relatively stationary at all times, and a film sticking means for attaching a repair film toward the seam welded portion at the upstream end of the guide member, so that the can body can be operated at high speed. Discloses a repair device for a welded seam welded portion that covers and repairs the welded seam portion on the inner surface while continuously conveying in one direction.
[0004]
By using this device, it was possible to correct the coating of the inner seam weld while continuously conveying the can body in one direction at a high speed, but the correction film was a long tape-like film cross section of the can body The supply means wound in a coil shape with a coil diameter that can be accommodated inside must be supplied to the seam weld, and when the film is consumed in a short time, the correction operation is interrupted each time the film is consumed. The film wound in the form had to be reloaded into the film sticking means, and the problem was not completely solved in order to further improve the productivity.
[0005]
[Problems to be solved by the invention]
Accordingly, the present invention has been made in view of the above problems, and continuously covers the seam welded portion on the inner surface for a long time without interrupting the correction operation while continuously conveying the can body in one direction at a high speed. An object of the present invention is to provide a correction device for a welded seam weld that can be corrected, and a jig for unwinding and unwinding a long tape film for realizing the solution of the problem, and a winding using the jig An object of the present invention is to provide a removing method, an unwinding method, and a correction film supply jig for a welded seam welded portion using them.
[0006]
[Means for Solving the Problems]
The long tape-shaped film of the present invention that solves the above problems Used for winding method, unwinding method and correction device for welding can seam welded part A long tape-shaped film winding / unwinding jig is composed of a frame and n pieces (n is an axis centered on the frame at predetermined intervals). 3 or more (Excluding odd numbers, the same shall apply hereinafter) cores that can be driven in the forward and reverse directions, and the n-th core from the film supply side of the cores, except for the n-th core. It is characterized by comprising entanglement means arranged so that it can be bent halfway and entangled with the core surface so that double winding is possible.
[0007]
The winding method of the long tape-shaped film of the present invention is It is composed of n cores (n is an odd number, the same applies hereinafter) whose axes are arranged in parallel at predetermined intervals on the frame so that they can be independently driven in forward and reverse rotation. Using the winding and unwinding jig, following the steps 1) to 4) below A long tape-shaped film is divided into {(n + 1) / 2} odd-numbered winding cores and wound into a coil shape. It is characterized by
1) Above Unwinding the long tape-shaped film wound in a coil shape around the winding core of the film supply means arranged adjacent to the winding and unwinding jig by rotating the winding core forward (for example, clockwise), Winding and unwinding jig Above Led to the nth core from the film supply means side, The Rotate the core forward The long tape film Take up in a coil Process ,At this time, Above A long tape-shaped film that has not yet been unrolled remains sufficiently in the film supply means, Above A long tape-shaped film is stretched between the film supply means and the nth core,
[0008]
2) The long tape-shaped film stretched between the film supply means and the nth core is entangled with the (n-2) th core from the film supply means side, and the (n-2) th roll The core is reversely rotated (for example, counterclockwise), and the film is overlapped and wound into a coil shape. At this time, the core of the film supply means is rotated forward, and the nth core is rotated backward. , Supplying the film from both cores to the (n-2) th core, winding it in a double layer,
[0009]
3) Next, the long tape-shaped film stretched between the film supply means and the (n-2) th core is entangled with the (n-4) th core from the film supply means side, 4) Reversely rotate the No. 1 core, wind up the film in a double-layered manner, and rotate the core of the film supply means forward, and the (n-2) th core also rotates forward. By supplying the film from both cores, the film is supplied to the (n−4) th core, wound in a coil shape in duplicate, and at the same time, the nth core is forwardly rotated (n−2). ) Take up the film supplied from the 1st core to the nth core,
[0010]
4) The above operations 2) and 3) are repeated in order, and finally the long tape-shaped film stretched between the film supply means and the third core is the first core from the film supply means side. The first core is reversely rotated, and the film is doubled and wound into a coil shape. At this time, the core of the film supply means is rotated forward, and the third core is also rotated forward. By supplying the film from both cores to the first core, simultaneously rotating the fifth core forward, and winding the film supplied from the third core to the first core, The film is supplied to the odd-numbered cores before and after the odd-numbered core after that, and the n-th core is rotated forward at the end of the film supply, and supplied from the (n-2) -th core. Take up the film to be rolled up.
[0011]
Moreover, the winding method of the long tape-shaped film of the present invention is the above-described winding method of the long tape-shaped film, wherein any odd number from the first to the n-th of the winding and unwinding jig is used. Also in the winding core, the film is wound so that the coil diameter of the film wound in a coil shape is equal.
[0012]
Furthermore, the method for unwinding the long tape-shaped film of the present invention is as follows. It is composed of n (n is an odd number, the same applies hereinafter) winding cores arranged in parallel to the frame at predetermined intervals so that they can be independently driven in forward and reverse rotation. Claim 2 using a winding and unwinding jig Or the long tape-shaped film wound up by the long tape-shaped film winding method of 3 Is unwound through the steps shown in 5) to 8) below, that is,
5) Above The long tape-like film that is stretched between the odd-numbered cores at the same time as the odd-numbered cores other than the n-th one of the winding and unwinding jigs are rotated in the forward direction and the n-th core is reversely rotated. The Above Entangled in the even-numbered cores between the odd-numbered cores, The Reverse the even-numbered core Process At this time, one long tape-shaped film that has been wound up in a double layer from the first core is unwound, and at the same time, the other long tape-shaped film is unwound from the third core. The long tape-shaped film to be wound and the second core are entangled, and both long tape-shaped films are overlapped Above Wound around the second core, in the same way Above The long tape-shaped film is unwound from the third to the nth odd-numbered cores, and the long tape-shaped film is doubled on the even-numbered cores from the fourth to the (n-1) th at the same time. Rolled up and wound up,
[0013]
6) After one of the double films wound twice on the first core is unwound and the other film is wound on the second core, the even-numbered core is rotated forward. Unwind the film, entangle it with the odd numbered cores before and after it (one of the films that have been rolled up twice from the second core is unwound), and unwind the odd numbered cores. Reversely rotate, and the nth core is rotated forward to wind up the film,
[0014]
7) Next, after one of the double films wound on the second core is unwound and the other film is wound on the third core, the odd-numbered core is rotated forward. Unwind the film and entangle it with the even-numbered cores before and after it (one of the films wound in a double layer is unwound from the third core), and the odd-numbered cores other than n , And reversely rotate the nth core to wind up the film.
[0015]
8) Repeat the above operations 6) and 7) in order, and finally rotate the (n-1) th core in the normal direction to unwind the film, and then fold one of the films wound up in a double layer. Unwind, rotate the n-th core in the normal direction and wind the other film around the n-th core, all the film wound on the (n-1) -th core is unwound and the n-th core After the film is wound, the nth core is rotated forward to unwind the film remaining until the end.
[0016]
The correction device for a welded can seam welded portion of the present invention is a can body drive provided on a fixed frame so as to convey the can body in the longitudinal direction while supporting the can body having both ends opened from the outside. Means, a long guide member provided so as to penetrate the inside of the can body in parallel with the conveying direction of the can body, and the guide frame indirectly to the fixed frame without obstructing the transportation of the can body And a guide member holding means for holding at a relative position with respect to the fixed frame, and supplying a correction film made of a long tape-like film to the seam welded portion of the can body A correction film affixing means provided at the end of the guide member, and a correction film supply jig provided in the correction film affixing means to provide a correction tape affixed to the correction film affixing means. Supply The correction film supply jig includes a plurality of odd-numbered windings so that the correction tape-like correction film used for correcting the weld can seam welded portion has a coil diameter that fits within the cross section of the can body. A correction film supply jig that divides and winds up the core and unwinds the correction film from the plurality of cores and supplies the correction film to the correction portion of the welding can. N cores (n is an odd number of 3 or more, the same shall apply hereinafter) with the cores arranged in parallel and capable of independent forward / reverse rotation drive, and the nth core of the cores are excluded In addition, it is characterized by comprising entanglement means arranged so that double winding can be performed by bending a long tape-shaped correction film on each winding core from the middle and entangled with the winding core surface. .
In the above term, “forward rotation” does not necessarily mean right rotation (clockwise rotation), but means specific one-way rotation, and “reverse rotation” means reverse rotation with respect to “forward rotation”. is doing.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
As shown in FIG. 1, the winding and unwinding jig 30 for the long tape-shaped film of the present embodiment has n cores 1 (n is an odd number, and n = 5 in the figure for simplicity). ˜5 are rotatably arranged in parallel to the core support rod 30a at a predetermined interval. Although not shown, each of the cores 1 to 5 is directly connected to the output shaft of the forward / reverse rotation motor, and is configured to be independently controlled for forward / reverse rotation drive. Further, if necessary, the n-th core may be removed, and the entanglement means may be arranged so that the film can be folded from the middle of each core and entangled with the core surface to be double-wrapped and wound. As the entanglement means, for example, a pressing means such as a restraining bar for holding the long film on the line of the core surface along the axial direction of the core and crossing the long film, and the core by the pressing means A long film holding means for holding the long film on the core surface along a transverse line pressed against the surface can be used.
[0018]
As the long film holding means, for example, a plurality of vacuum hole arrays opened to the core surface inside the core are arranged at predetermined angular intervals along the axial direction of the core surface, and each vacuum hole array is By reaching a position opposite to the long film pressing means, the vacuum film is operated by matching the timing of the action of the long film pressing means with the vacuum source. By holding on the core surface on a line traversing the long film and rotating the core in this state, the long film can be folded and entangled and double-wrapped and wound. As other long film holding means, any holding means such as a clamp means operated by a cam can be adopted. However, the entanglement means is not necessarily required, and may be attached to the correction device for the welded seam welded portion after manually setting the entangled state in advance.
[0019]
FIGS. 1 to 7 show film supply means 20 and n cores (n is an odd number, n = 5 in the figure for simplicity) provided adjacent to the film supply unit 20 so as to be rotatable. The long tape-shaped film 10 is unwound from the film supply means 20 using the jig 30 for winding and unwinding the long tape-shaped film of the present invention which is arranged in parallel with the rod 30a at a predetermined interval. FIG. 8 to FIG. 17 are schematic views for explaining a winding process on the winding core (winding cores 1 to 5 in the drawing) of the unwinding jig 30, and FIGS. It is the schematic explaining the process of unwinding the long tape-shaped film 10 wound up by 5).
[0020]
First, the process of unwinding the long tape-shaped film 10 from the film supply means 20 and winding it around the cores 1 to 5 of the winding / unwinding jig 30 will be described in order with reference to FIGS.
[Process 1]
As shown in FIG. 1, a long tape-like film 10 wound in a coil shape on the core of the film supply means 20 is rotated in the forward direction (as indicated by the arrow in the figure). Unwind, unwind, lead to the fifth core 5 from the side of the film supply unit 20 of the cores 1 to 5 arranged adjacent to the film supply unit 20, and rotate the core 5 forward by a motor. 3 As shown in FIG. At this time, a film that has not been unrolled still remains in the film supply means 20, and the film is stretched between the film supply means 20 and the core 5. When the film 10 unwound from the film supply means 20 is wound around the core 5, as shown in FIG. 2, the film 10 is guided from the upper side of the film core 4 to the core 5, and reversely rotated (as indicated by the arrow in the figure). The winding may be performed by rotating it counterclockwise as shown in FIG. 3, but the case where the winding core 5 is wound by rotating forward as shown in FIG. 3 will be described below.
[0021]
[Process 2]
Next, as shown in FIG. 4, the long tape-shaped film 10 stretched between the film supply means 20 and the core 5 is entangled with the core 3, and the core 3 is rotated in the reverse direction. It is piled up and wound up in a coil shape. At this time, by rotating the core of the film supply means 20 in the forward direction and rotating the core 5 in the reverse direction, the film 10 is supplied from both the cores to the core 3 and is wound in a coil shape as shown in FIG. take.
[0022]
[Process 3]
Next, as shown in FIG. 6, the long tape-shaped film 10 stretched between the film supply means 20 and the core 3 is entangled with the core 1, and the core 1 is rotated in the reverse direction. It is piled up and wound up in a coil shape. At this time, the film 10 is supplied to the core 1 from both cores by rotating the core of the film supply means 20 in the forward direction and also rotating the core 3 in the forward direction. At the same time, the core 5 is rotated forward, and the film supplied from the core 3 to the core 5 is wound into a coil shape as shown in FIG. In this way, the winding process ends. In addition, the operation | work which winds a long film doubly around the winding core 3 in the said process 2 and the winding core 1 in the process 3 respectively, and stops the drive of a motor once completion | finish of a 1st process and a 2nd process. Thus, by manually performing the first winding of the double winding and then driving the motor, it can be performed without special entanglement means.
[0023]
In the present invention, as shown in FIG. 7, among the five cores, the long tape-shaped film 10 is divided into three odd-numbered cores and wound in a coil shape. The winding diameter must be within the diameter of the can body to compensate for the seam weld. In addition, in order to pursue high productivity, which is the object of the present invention, each coil diameter is not limited to the inner diameter of the can body in the case of a cylindrical can body, and to the diagonal line of the can body in the case of a square tubular can body. It is necessary to wind up so that the maximum diameter that the can body can pass through is close. Therefore, in steps 1 to 3 shown in FIGS. 1 to 7, it is preferable to perform a winding operation as described below.
[0024]
That is, first, in step 1, the long tape-shaped film 10 is unwound from the film supply means 20, and wound around the core 5 so as to have a diameter larger than the final target coil diameter. Next, in step 2, the film 10 is supplied to the core 3 from both the film supply means 20 and the core 5 and wound so as to have a diameter larger than the final target coil diameter. At this time, the film 10 is supplied also from the core 5 to the core 3, and the coil diameter of the core 5 decreases. Next, in step 3, the film 10 is supplied from both the film supply means 20 and the core 3 to the core 1 and wound so as to have a final target coil diameter. At this time, the film is also supplied from the core 3 to the core 5, the coil diameter of the core 3 is decreased, and the coil diameter of the core 5 is increased. In each step, the winding diameter of each core is adjusted so that the coil diameters of 3 and 5 are substantially the same and the maximum diameter through which the can body can pass.
[0025]
1 to 7, a long tape-like film 10 is divided into three winding cores 1, 3, and 5 of a winding and unwinding jig 30 having five winding cores 1 to 5. In the case where more than 5 cores (n: odd number) are provided on the winding / unwinding jig 30, a long tape is supplied from the film supply means 20 in the above step 1. After the film-like film 10 is guided to the core n farthest from the film supply means 20, the core of the film supply means 20 and the core n are rotated forward, and the film 10 is wound around the core n in the form of a coil. 2 to 3) are repeated in order, and finally the long tape-shaped film stretched between the film supply means 20 and the core 3 is entangled with the core 1 to rotate the core 1 in the reverse direction. Are wound in a coil shape. At this time, the film 10 is supplied to the core 1 from both cores by rotating the core of the film supply means 20 in the forward direction and also rotating the core 3 in the forward direction. At the same time, the core 5 is rotated forward, the film supplied from the core 3 to the core 5 is wound into a coil shape, and the film is supplied to the odd-numbered cores before and after the odd-numbered core. At the end of film supply, the core n is rotated in the forward direction, and the film supplied from the core (n-2) is taken up. In this way, the long tape-like film 10 is divided into {(n + 1) / 2} cores of the winding / unwinding jig 30 provided with n cores and wound in a coil shape. Can do.
[0026]
Also in this case, the long tape-shaped film 10 is divided into three cores out of the five cores of the winding / unwinding jig 30 provided with the five cores described above and wound in a coil shape. In the same manner as in the case of taking, at the time when the steps 2 to 3 are repeated to divide into odd-numbered winding cores and finish the winding operation in a coil shape, each of the films wound around the odd-numbered winding cores. In each step, the winding diameter of each core is adjusted so that the coil diameters are substantially the same and the maximum diameter through which the can body can pass is obtained.
[0027]
Next, with reference to FIGS. 8 to 17, the long tape-shaped film 10 that has been wound in an odd-numbered winding core 1, 3, 5 of the winding / unwinding jig 30 in a coil shape is unwound. The steps will be described in order.
[0028]
[Process 4]
First, as shown in FIG. 8, the long tape-shaped film 10 that has been wound into the cores 1, 3, and 5 of the winding and unwinding jig 30 in a coil shape is connected to the cores 1 and 3. Rotate and unwind by reversing the core 5. At this time, one of the long tape-like films 10 wound around the winding core 1 is sent to a working section such as a seam welded portion in synchronism with the rotational speed of the winding core 1 by a conveying means (not shown). The The other is unwound toward the core 2. In addition, the winding core 3 is wound twice, and one of the long tape-shaped films 10 is unwound toward the winding core 2 and the other is unwound toward the winding core 4. In the core 5, the film 10 is unwound toward the core 4. Then, the film 10 unwound from the cores 1 and 3 toward the core 2 is entangled with the core 2, and the core 2 is rotated in a reverse direction. One film 10 that has been wound is unwound, and at the same time, the other film 10 is entangled with the film 10 and the core 2 that are unwound from the core 3, and both films are overlapped and wound around the core 2. Taken. At the same time, in the same manner, the film 10 is unwound from the core 3 and the core 5 toward the core 4 and entangled with the core 4, and both films are overlapped by rotating the core 4 in the reverse direction. And wound on the core 4. In this way, as shown in FIG. 9, the film wound in the coil shape from the cores 1, 3, and 5 is unwound and decreased, and the film is wound on the cores 2 and 4 and increased. Go. In addition, the double winding start to the winding core 2 and the winding core 4 in the process 4 is performed before the winding unwinding jig 30 which has finished winding the film as shown in FIG. In the example to be described later, before setting in the correction device of the weld can seam welded portion), it is manually entangled with the core 2 and the core 4 in the state shown in FIG. Even if the automatic entanglement means is not provided, all subsequent unwinding operations shown below can be automatically performed.
[0029]
[Process 5]
After all the films have been unwound from the cores 1 and 3 as shown in FIG. 10, as shown in FIG. 11, the film that has been split and wound up into the cores 2 and 4 is rolled into the cores 2 and 4. Unwind by rotating forward. At this time, one end of the long tape-shaped film 10 wound twice in the core 2 is sent to a working part such as a seam welded part in synchronization with the rotational speed of the core 2 by a conveying means (not shown). The The other is unwound toward the core 3. In addition, the winding core 4 is wound twice, and one of the long tape-shaped films 10 is unwound toward the winding core 3 and the other is unrolled toward the winding core 5. In the core 5, the film is wound around the core 5 by rotating the 10 core 5 forward. Then, the film unwound from the cores 2 and 4 toward the core 3 is entangled with the core 3 and the core 3 is rotated in the reverse direction so that both films are overlapped on the core 3. It is wound up. FIG. 10 shows a state in which all the film is unwound on the core 3 as with the core 1, but in the situation of FIG. 10, when an unreleased film remains on the core 3, By winding the winding core 3 in the reverse direction, the remaining film is wound up. In this manner, as shown in FIG. 11, the film wound in the coil shape from the cores 2 and 4 is unwound and decreases, and the film is wound around the cores 3 and 5 and increases.
[0030]
[Step 6]
After all the films have been unwound from the cores 2 and 4 as shown in FIG. 12, the film that has been wound up into the cores 3 and 5 as shown in FIG. Unwind by rotating forward. At this time, one of the long tape-like films 10 wound around the winding core 3 is sent to a working unit such as a seam welded portion in synchronization with the rotational speed of the winding core 3 by a conveying means (not shown). The The other is unwound toward the core 4. In the core 5, the film is unwound toward the core 4. Then, the film unwound from the cores 3 and 5 toward the core 4 is entangled with the core 4 and the core 4 is rotated in the reverse direction so that both films are overlapped on the core 4. It is wound up. FIG. 12 shows a state in which all the film is unwound on the core 4 as with the core 2, but in the situation of FIG. 12, when an unreleased film remains on the core 4, By winding the winding core 4 in the reverse direction, the remaining film is wound up. In this way, as shown in FIG. 13, the film wound in a coil shape from the cores 3 and 5 is unwound and decreases, and the film is wound around the core 4 and increases.
[0031]
[Step 7]
After all the films have been unwound from the core 3 as shown in FIG. 14, the film 10 wound around the core 4 is unwound by rotating the core 4 forward as shown in FIG. At this time, one end of the long tape-shaped film 10 wound twice in the core 4 is sent to a working unit such as a seam welded portion in synchronization with the rotational speed of the core 4 by a conveying means (not shown). The The other is unwound toward the core 5. Moreover, in the core 5, the core 5 is rotated forward to wind up the film. In this way, as shown in FIG. 15, the film wound in the coil shape from the core 4 is unwound and decreases, and the film is wound around the core 5 and increases.
[0032]
[Step 8]
After all the films have been unwound from the core 4 as shown in FIG. 15, the film wound around the core 5 is unwound by reversely rotating the core 5 as shown in FIG. 15. At this time, the film is sent to a working part such as a seam welded part in synchronization with the rotational speed of the core 5 by a conveying means (not shown). In this way, as shown in FIG. 17, the film wound in a coil shape from the core 5 is unwound and decreases, and all the long tape-shaped films 10 are working parts such as seam welds. The unwinding process is completed.
[0033]
In the present invention, in the winding process, as shown in FIG. 7, the film is wound around the core 5 out of the five cores, but the film is wound around the cores 1 and 3 twice. Rolled up. Therefore, when unwinding the film wound twice around the cores 1 and 3, as shown in FIGS. 8 to 14, one of the double wound films is unwound downstream in the unwinding direction. The other is unwound upstream in the unwinding direction and unwound while being wound around the cores 2 and 4, respectively. At this time, the coil diameter of the film wound up in each winding core increases or decreases, but as shown in FIG. 7, the winding coil diameters of the odd-numbered winding cores 1, 3, and 5 can correct the welded portion. In the case of a cylindrical can body, the inner diameter of the can body, and in the case of a square tube can body, it is as close as possible to the diagonal of the can body, so that the maximum diameter that the can body can pass is almost the same coil diameter. When the coil diameter of the film wound around each of the winding cores 1, 2, 3, 4, 5 increases in each unwinding step, the winding cores 1, 3, 5 Unwind so as not to exceed the diameter of the coil wound first. By carrying out the unwinding work in this way, the maximum can be used in the cross section of the can body that corrects the seam weld without causing any trouble in the continuous correction work, and the correction work is interrupted and coiled. The opportunity to reload the wound film into the film application means can be greatly reduced.
[0034]
Moreover, in FIGS. 8-17, it wound by dividing | segmenting into the coil shape at odd-numbered cores 1, 3, and 5 of the winding unwinding jig | tool 30 which has five cores of the cores 1-5. Although the case where the long tape-shaped film 10 is unwound was shown, when providing more than 5 (n: odd number) winding cores on the winding / unwinding jig 30, the operations of steps 8 to 17 are sequentially performed. By repeating, it can unwind similarly.
[0035]
As described above, the long tape-shaped film of the present invention is formed into a coil having the same diameter on a plurality of cores by using the winding method of the present invention for the winding and unwinding jig of the long tape-shaped film. The long tape-shaped film obtained by dividing and winding the long tape-shaped film according to the present invention is divided into a plurality of cores and wound in the shape of a coil having the same diameter. Unwinding can be performed without increasing the coil diameter from the wound diameter. Therefore, when the winding and unwinding jig of the long tape-shaped film of the present invention is applied as a correction film supply jig for the welded seam welded portion, each winding coil diameter is In the case of an inner diameter and square cylindrical can body, it is as close as possible to the diagonal of the can body and is wound around a plurality of cores so that the can body can pass the maximum diameter. Unwinding can be performed without exceeding the take-up coil diameter, and the correction operation can be carried out continuously without interruption without interruption.
[0036]
Hereinafter, welding can seam welding using a correction film supply jig of a welded seam welded portion to which the winding and unwinding jig of the long tape-shaped film of the present invention, the winding method of the present invention, and the unwinding method are applied The correction apparatus for the part will be described with reference to the drawings.
FIGS. 18 and 19 are schematic views of a correction device 50 for a welded can seam weld according to the present invention. A correction film 36 is used to connect the seam welded portion 12 of a rectangular tube-shaped can body 11 having a rectangular cross section to both ends. to correct. As shown in the drawing, a large number of conveyor rollers 13 are arranged at predetermined intervals in the longitudinal direction of the correction device 50 to constitute a roller conveyor 14 as an example of a driving means, and the can body 11 is placed on the roller conveyor 14. Are conveyed continuously at regular intervals (from left to right in FIG. 18).
[0037]
On the roller conveyor 14, a guide member 15 made of a long bar having the same axial line as the longitudinal axis of the can body 11 conveyed on the roller conveyor 14 and having both ends as free ends is disposed. Each of the guide members 15 is supported by a pair of internal support means and external support means arranged in at least three locations (five locations shown in the figure) in the transport direction. That is, at each location, the support roller 16 constituting the lower internal support means is rotatably attached to the lower surface of the guide member 15 via the bearing 17. On the other hand, the external receiving roller 18 constituting the lower external supporting means is brought into contact with the supporting roller 16, and the bearing 19 that rotatably supports the external receiving roller 18 is attached to the lower fixed frame 21 via the elevating cylinder 60. It is fixed. Further, an auxiliary roller 22 that forms a pair with the support roller 16 and constitutes the upper internal support means is fixed via a bearing 23 at a position that is vertically symmetrical with the support roller 16 of the guide member 15. On the other hand, the external receiving roller 25 constituting the upper external support means is in contact with the auxiliary roller 22, and the bearing 26 that rotatably supports the external receiving roller 25 is fixed to the upper fixing frame 27.
[0038]
In addition, as shown in FIG. 19, the auxiliary rollers 22 and 44 and the external receiving rollers 25 and 46 can be attached to the left and right fixing frames 48 and 49. With this configuration, the guide member 15 can be supported in a state where the axis of the guide member 15 is aligned with the axis of the can body 11.
[0039]
In this manner, the can body 11 is supported by being sandwiched and supported by these support rollers 16 and auxiliary rollers 22 and 44 from the inside and by these external receiving rollers 18, 25 and 46 from the outside at each support location. The guide member 15 is supported. Furthermore, guide member holding means is provided so as to support the guide member 15 in a stationary state relative to the upper, lower, left and right fixed frames 27, 21, 48, 49 without disturbing the conveyance of the can body 11. ing.
[0040]
As the guide member holding means, the one described in JP 2001-261135 A can be applied as it is. That is, the support roller 16 can be held open and closed from the left and right, and a pair of holding rollers 28 fixed relatively to the lower fixed frame 21 are provided. Just before the can body 11 passes through each support portion, The holding roller 28 is opened to release the support roller 16. After the can body 11 has passed, the pair of holding rollers 28 are closed again to hold the support roller 16. In this manner, the guide member 15 can be supported while being able to transport the can body 11 and can be supported in a stationary state relative to the fixed frames 27, 21, 48, and 49.
[0041]
Next, the case where the correction film supply jig 37 for the welded seam welded portion of the present invention described above is applied to the correction device 50 for the welded seam welded portion of the present invention will be described. In the correction device 50 shown in FIG. 18, the correction film supply jig 37 formed by continuously connecting the five cores 31 to 35 to the core support bar 39 so as to freely rotate is provided as the core support bar. The end portions 39a and 39b of 39 are fitted into the guide member 15 and are detachably fitted as cassettes. At this time, as described above, the correction film 36 (long tape-shaped film 10) is wound around the cores 31, 33, 35 in a coil shape on the correction film supply jig 37.
[0042]
The correction film 36 unwound from the correction film supply jig 37 is directed downward by a deflector roll 38 attached to the guide member 15 so as to be rotatable. A film sticking roller 40 is attached via a bearing on the lower surface of the guide member 15 immediately below where the deflector roll 38 is attached. As shown in FIG. 19, the outer shape of the film sticking roller 40 has a convex shape that is substantially the same as the inner surface of the can body 11. Then, the correction film 36 suspended from the deflector roll 38 is wound around the film application roller 40 and attached to the weld seam portion 12 formed on the inner surface of the can body 11. Further, a backup roller 41 having a concave outer shape substantially the same as the outer surface of the can body 11 is arranged below the film sticking roller 40. It is being fixed to the lower fixed frame 21 via. Although not shown, a heating device (such as a high frequency induction heating device) for heating the seam welded portion 12 of the can body 11 is disposed on the upstream side (left side in the drawing) of the guide member 15.
[0043]
The correction portion of the seam welded portion 12 of the can body 11 is configured as described above, and the correction film 36 is pressurized with the film application roller 40 and the backup roller 41 by operating the elevating cylinder 42, and the correction film is applied to the seam welded portion 12. 36 can be reliably fused. The can body 11 to which the correction film 36 is adhered is further conveyed and advances in the right direction in the figure. At this time, one or both of the film application roller 40 and the backup roller 41 are stopped by a brake device (not shown). Thus, the correction film 36 is pulled by the can body 11 and cut at the rear end (left end in the figure) of the can body 11.
As described above, the correction film 36 can be applied to the seam welded portion 12 of the can body 11 for correction.
[0044]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various shape changes can be made within the scope of the technical idea. For example, in the winding and unwinding jig for the long tape-shaped film, the threading between the cores of the long film and the winding / unwinding direction are not limited to those of the above embodiment, for example, The method shown in FIGS. 20 to 21 is also possible. This embodiment is merely different in the threading and unwinding directions between the winding cores of the long film, and the winding / unwinding method is the same as in the above embodiment. The same reference numerals are used for illustration, and detailed description is omitted. As in this embodiment, when the long film is entangled with the core and the double winding is started by passing the long film alternately above and below the core, Since it is in contact with the core, when the double winding means is automatically provided, the means for pressing the long film on the core can be omitted, and there is an advantage that it can be simplified. Further, the unwinding / unwinding jig for the long tape-shaped film of the present invention is not limited to the application to the correction device of the welded seam welded portion, but a long-time continuous supply of the long tape-shaped film is required. The present invention can be applied to various uses for solving the problem that the continuous supply is hindered due to the limitation of the coil diameter.
[0045]
【The invention's effect】
As described above, by using the winding and unwinding jig of the present invention, the long tape-shaped film used for correcting the seam welded portion of the weld can has a coil diameter with a substantially constant diameter that fits within the cross section of the can body. By continuously winding around a plurality of winding cores, it becomes possible to wind up a large amount of long film, and when unwinding, the coil diameter is unwound without exceeding the winding diameter. The coil does not come into contact with the inner surface of the can body and does not interfere with the continuous correction work of the seam weld. In addition, when the winding and unwinding jig of the present invention is applied to a correction device for a welding can seam weld as a correction film supply jig for a weld can seam weld, a large amount of correction film is continuously applied to the correction unit for a long time. Since it can be supplied, it is often unnecessary to stop the operation of the apparatus to supply the correction film, and the seam weld can be corrected with high productivity.
[Brief description of the drawings]
FIG. 1 is a schematic view showing one step of winding a long tape-shaped film around a core of a winding / unwinding jig according to the present invention.
FIG. 2 is a schematic view showing another step of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 3 is a schematic view showing another step of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 4 is a schematic view showing another process of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 5 is a schematic view showing another step of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 6 is a schematic view showing another process of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 7 is a schematic view showing another process of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 8 is a schematic view showing one step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 9 is a schematic view showing another step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 10 is a schematic view showing another step of unwinding the long tape-like film wound around the core of the winding / unwinding jig of the present invention.
FIG. 11 is a schematic view showing another step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 12 is a schematic view showing another step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 13 is a schematic view showing another step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 14 is a schematic view showing another step of unwinding the long tape-like film wound around the core of the winding / unwinding jig of the present invention.
FIG. 15 is a schematic view showing another step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 16 is a schematic view showing another step of unwinding the long tape-like film wound around the core of the winding / unwinding jig of the present invention.
FIG. 17 is a schematic view showing another process of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
FIG. 18 is a cross-sectional front view of a correction apparatus for a welded can seam weld according to the present invention.
19 is a composite cross-sectional view of the AA cross section and the BB cross section of FIG. 18;
FIG. 20 is a schematic view of another embodiment showing one step of winding a long tape-shaped film around the core of the winding / unwinding jig of the present invention.
FIG. 21 is a schematic view of another embodiment showing a step of unwinding the long tape-shaped film wound around the core of the winding / unwinding jig of the present invention.
[Explanation of symbols]
1 core
2 core
3 core
4 roll core
5 core
10 Long tape film
11 Can body
12 Seam weld
13 Conveyor roller
14 Roller conveyor
15 Guide member
16 Support roller
17 Bearing
18 External receiving roller
19 Bearing
20 Film supply means
21 Lower fixed frame
22 Auxiliary roller
23 Bearing
24 Auxiliary roller
25 External receiving roller
26 Bearing
27 Upper fixed frame
28 Nipping roller
30 Winding and unwinding jig
30a core support rod
31 core
32 core
33 core
34 core
35 core
36 Correction Film
37 Correction Film Supply Jig
38 Deflector Roll
39 Core support rod
39a End of core support rod
39b End of core support rod
40 Film application roller
41 Backup roller
42 Lifting cylinder
44 Auxiliary roller
46 External receiving roller
48 Left fixed frame
49 Right fixed frame
50 Welding can seam weld correction device
60 Lifting cylinder

Claims (4)

Winding / unwinding treatment comprising n cores (n is an odd number of 3 or more , the same applies hereinafter) whose axes are arranged in parallel at predetermined intervals on the frame so that they can be independently driven in forward and reverse rotation. Using a tool, the long tape-like film is divided into {(n + 1) / 2} odd-numbered winding cores and wound into a coil shape through the steps shown in 1) to 4) below. Winding method of long tape-shaped film,
1) Unwinding the long tape-shaped film wound in a coil shape around the winding core of the film supply means arranged adjacent to the winding / unwinding jig by rotating the winding core in the forward direction and unwinding the winding film The step of guiding the n-th core from the film supply means side of the unwinding jig and rotating the core in the normal direction to wind the long tape-shaped film into a coil shape, at this time, the film supply means A long tape-shaped film that has not yet been unrolled remains sufficiently, and the long tape-shaped film is stretched between the film supply means and the n-th core,
2) The long tape-like film stretched between the film supply means and the nth core is entangled with the (n-2) th core from the film supply means side, and the (n− 2) The step of rotating the first core in the reverse direction, the step of winding the long tape-shaped film in a coil shape around the (n-2) th core, and winding the film supply means By rotating the core forward and rotating the n-th core backward, the long tape-like film is supplied from both cores to the (n-2) -th core, and the coil is overlapped in duplicate. Wound up in a shape,
3) Next, the long tape-shaped film stretched between the film supply means and the (n-2) th core is entangled with the (n-4) th core from the film supply means side. , Reversely rotating the (n-4) -th core and winding the long tape-shaped film into a coil shape, at this time, rotating the core of the film supply means in the forward direction, By rotating the n-2) th core in the forward direction, a long tape-like film is supplied from both cores to the (n-4) th core, and the (n-4) th core is supplied. The n-th core is forwardly rotated at the same time, and a long tape-like film supplied from the (n-2) th core to the n-th core is wound. take,
4) Steps 2) and 3) above are repeated in order, and finally the long tape-like film stretched between the film supply means and the third core is the first from the film supply means side. Entangled with the first core, reversely rotating the first core, and winding the long tape-shaped film on the first core twice in a coil shape, at this time, the film supply means , And the third core is also rotated forward to supply the long tape-like film from both cores to the first core. At the same time, the fifth core is Rotate forward, take up the long tape-like film that is also supplied from the third core to the first core, and then follow the odd-numbered cores before and after the odd-numbered core. Supply long tape-like film, supply long tape-like film Terminus rotated forward the n-th winding core is, winding the long tape-like film to be supplied from the (n-2) th winding core.   The long tape shape so that the coil diameters of the long tape-shaped films wound in a coil shape are equal in any odd-numbered winding cores from the first to the n-th of the winding and unwinding jig. The method for winding a long tape-shaped film according to claim 1, wherein the film is wound. Using a winding / unwinding jig comprising n cores (n is an odd number of 3 or more , the same applies hereinafter) arranged in parallel to the frame at predetermined intervals so as to be independently driven to rotate forward and backward. A long tape, wherein the long tape film wound by the long tape film winding method according to claim 2 or 3 is unwound through the steps shown in the following 5) to 8). Method of unwinding the film,
5) The long length that is stretched between the odd-numbered cores at the same time that the odd-numbered cores other than the nth of the winding and unwinding jig are rotated in the normal direction and the n-th core is reversely rotated. The tape-shaped film is entangled with the even-numbered cores between the odd-numbered cores, and the even-numbered cores are reversely rotated. At this time, the first core is double-wrapped and wound. One long tape-shaped film that has been taken is unwound, and at the same time, the other long tape-shaped film is entangled between the long tape-shaped film unwound from the third core and the second core, The long tape-shaped film is rolled up on the second core in the same manner, and similarly, the long tape-shaped film is unwound from the third to n-th odd cores. At the same time, it is long to the even-numbered cores from the 4th to the (n-1) th Tape-like film is wound in superimposed double,
6) One of the double long tape films wound twice on the first core was unwound and the other long tape film was wound on the second core. Then, the even-numbered winding core is rotated forward to unwind the long tape-shaped film, and entangled with the odd-numbered winding cores before and after the roll (the second winding core has been wound up in double layers) One of the long tape-shaped films is unwound), reversely rotating the odd-numbered cores, and rotating the n-th core positively to wind up the long tape-shaped films, respectively,
7) Next, after one of the double long tape-shaped films wound around the second core is unwound and the other long tape-shaped film is wound around the third core, Unwind the long tape-shaped film by rotating the odd-numbered winding core forward, and entangle it with the even-numbered winding core before and after that (the long length of the third winding core that was wound up in double layers) One of the tape-shaped films is unwound), a step of rotating the odd-numbered cores other than the n-th forward, and a reverse rotation of the n-th core to wind up the long tape-shaped film,
8) The above steps 2) and 3) were repeated in order, and finally the (n-1) -th core was rotated forward to unwind the long tape-like film, which was wound up in a double layer. One side of the long tape-shaped film is unwound, the n-th core is rotated forward, the other long tape-shaped film is wound on the n-th core, and wound on the (n-1) -th core. The step of unwinding the long tape-shaped film remaining until the end by rotating the n-th core in the normal direction after all the long tape-shaped film is unwound and wound on the n-th core. . The can body driving means provided on the fixed frame so as to transport the can body in the longitudinal direction while supporting the can body having both ends opened from the outside, and the inside of the can body in parallel with the transport direction of the can body The guide member is indirectly supported from the external fixed frame without interfering with the conveyance of the can body, and is relatively the same with respect to the fixed frame. A guide member holding means for holding in position, and a correction film sticking means provided at an end of the guide member for supplying and sticking a correction film made of a long tape-like film to the seam welded portion of the can body The correction film sticking means is provided with a correction film supply jig to supply a long tape-shaped correction film to the correction film sticking means ,
The correction film supply jig divides the long tape-shaped correction film used for correction of a welded seam welded portion into a plurality of odd-numbered winding cores so as to have a coil diameter that fits within the cross section of the can body. A correction film supply jig for winding and unwinding the correction film from the plurality of winding cores and supplying the correction film to the correction portion of the welding can, the frame and the frame having an axis arranged in parallel at predetermined intervals. N cores (n is an odd number of 3 or more, the same shall apply hereinafter) provided so as to be independently driven in forward and reverse rotation, and each of the cores except for the n-th core. An apparatus for correcting a welded can seam welded portion , comprising: an entanglement means arranged so that a long tape-shaped correction film is bent halfway and entangled with a core surface so as to allow double winding .

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